
Professional Mould Steel Supplier in China
Sichuan Liaofu Special Steel Company.,Ltd was established in 2001,, Sichuan Liaofu special steel Company., LTD was established in 2001,, specialized in special steel production and sales of stock steel as the main business, after several years of development, The company has gradually formed a complete production and management system of melting, refining, forging and heat treatment.
Bearing steel process \100Cr6, 304 stainless steel \3161 duplex UNS S31803 and super duplex UNS S3276\ alloy steel 4130/4140/8620, high speed tool steel T1/M2/M35/M42 and die steel D2, D3, H13 / H21 / P20, the products cover special steel round, square, flat, wire, wire, plate, pipe, strip and other heavy forgings.
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OUR FACTORY
Sichuan Liaofu Special Steel Company.,Ltd

Mould Steel factory
Now our company covers an area 76250 square meters.The manufacturing workshop has excellent production equipment such as 30, 60 tons of VOD, VHD refining furnace,12 ton vacuum consumable furnace, 12 ton vacuum induction furnace , 2000 ton/3500 ton quick forging machine,1000 ton precision forging machine,5 tons / 8 tons of electro-hydraulic A set of hammer units, two sets of 1/0.75/0.25 tons air hammer, two sets of 630-ton three-way hydraulic press units, two sets of 315-ton four-column hydraulic leveling units. Auxiliary equipment include gas generator, continuous heating furnace, car- bottom type annealing furnace and electric annealing furnace. Full hydraulic electric wheel peeling machine, electric band saw, gantry saw, etc. The testing equipment includes advanced instruments for chemical analysis, physical inspection and mechanical performance testing.
What is Mold Steel/Mould Steel/die Steel
?
Mold Steel/Mould Steel/die Steel is used to make injection molds, cold stamping molds, hot forging molds, die casting molds and other molds. Mold is the main processing tool of machinery manufacturing, radio instrument, motor, electrical appliance, industrial production and so on. The quality of the mold directly affects the quality of the pressure processing process, the precision of the product, the output and the production cost, and the quality and service life of the mold are mainly affected by the mold material and heat treatment in addition to the reasonable structural design and processing accuracy.
International common Mold Steel/Mould Steel/Die Steel brand
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brand |
Steel class |
Similarity corresponds to steel number |
Main features and uses |
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China |
American |
Japan |
Germany |
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A2 |
Air quenched alloy cold work die steel |
Cr5Mo1V |
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SKD12 |
1.2363 |
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D2 |
High carbon and high chromium cold work die steel |
C12Mo1V |
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SKD11 |
1.2379 |
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D3 |
High carbon and high chromium cold work die steel |
Cr12 |
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SKD1 |
1.2080 |
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DC11 |
High wear resistance air quenched die steel |
Cr12Mo1V1 |
D2 |
SKD11 |
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DC53 |
High strength and toughness cold working die steel |
Cr8Mo1VSi |
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DC11改进型 |
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High hardness, high toughness after tempering at high temperature, good wire cutting, for fine blanking, drawing, wire rolling and cold blanking die, punch |
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DF-2 |
Oil quenched die steel |
9Mn2V |
O2 |
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Good blanking ability, small heat treatment deformation, used for small stamping die, cutting blade |
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DF-3 |
Oil quenched die steel |
9CrWMn |
O1 |
SKS3 |
1.2510 |
Good toughness retention ability, small quenching deformation, used for sheet die, embossing die |
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GOA |
Special cold work die steel |
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SKS3改进型 |
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High hardenability, good wear resistance, for cold stamping die, forming die, punch, embossing |
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GSW-2 3 7 9 |
High carbon and high chromium cold work die steel |
Cr12Mo1V1 |
D2 |
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1.2379 |
For cold extrusion, stamping die, also used in high wear resistance plastic mold |
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K100 |
High carbon and high chromium cold work die steel |
Cr12 |
D3 |
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1.2080 |
High wear resistance, excellent corrosion resistance, used for stainless steel sheet cutting, deep drawing, cold pressing, forming die |
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K110 |
High toughness high chromium cold work die steel |
Cr12Mo1V1 |
D2 |
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Good strength, hardness and toughness for heavy duty stamping dies |
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K460 |
Oil quenched die steel |
MnCrWV |
O1 |
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1.2510 |
High strength, small heat treatment deformation, used for metal stamping die |
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M2 |
Molybdenum high speed steel for cold working molds |
W6Mo5Cr4V2 |
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SKH9 |
1.3343 |
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O1 |
Oil quenched die steel |
MnCrWV |
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SKS3 |
1.2510 |
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O2 |
Oil quenched die steel |
9Mn2V |
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1.2842 |
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P18 |
Tungsten high speed steel for cold working die |
W18Cr4V |
T1 |
SKH2 |
1.3355 |
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STD11 |
Air quenched die steel |
Cr12Mo1V1 |
D2改良 |
SKD11 |
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High purity, uniform hardness, high wear resistance, high strength |
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XW-10 |
Air quenched die steel |
Cr5Mo1V |
A2 |
SKD12 |
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Good toughness, high wear resistance, heat treatment deformation is small |
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XW-42 |
High carbon and high chromium cold work die steel |
Cr12Mo1V1 |
D2 |
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Good hardenability and toughness, high wear resistance, heat treatment deformation is small, good tempering resistance |
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YK30 |
Oil quenched die steel |
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O2 |
SKS93 |
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Cold stamping die |
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8407 |
Universal hot work die steel |
4Cr5MoSiV1 |
H13 |
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For hammer forging, extrusion, die casting mold, can also be used in plastic mold |
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DH21 |
Aluminum die casting steel |
4Cr3Mo3VSi |
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Good thermal fatigue cracking resistance and long service life of the mold |
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DH2F |
Easy cutting pre-hardened die steel |
H13+S |
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SKD61改良 |
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Pre-hardened 37~41HRC, good toughness, used for complex precision zinc hot work mold, such as aluminum, zinc die casting mold, thermo extrusion die, can also be used for plastic mold |
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DH31S |
Large die casting steel |
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Good hardenability, thermal fatigue cracking resistance and hot melt loss resistance are good, used in aluminum, magnesium die casting, aluminum extrusion and hot shear, hot stamping die |
Mold Steel/Mould Steel/Die Steel steel class
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brand |
Steel class |
China |
American |
Japan |
Germany |
Main features and uses |
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DH42 |
Steel for copper die casting |
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For copper alloy die casting and hot extrusion die |
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DHA1 |
Universal hot work die steel |
4Cr5MoSiV1 |
H13 |
SKD61 |
1.2344 |
Good hardenability, good resistance to thermal fatigue cracking and hot melt damage, high tempering resistance, high temperature impact performance |
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GSW-2 3 4 4 |
Universal die casting steel |
4Cr5MoSiV1 |
H13型 |
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For aluminum, zinc alloy die-casting die |
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H10 |
American H series hot work die steel |
4Cr3Mo3SiV |
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1.2365 |
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H11 |
American H series hot work die steel |
4Cr5MoSiV |
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SKD6 |
1.2343 |
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H13 |
American H series hot work die steel |
4Cr5MoSiV1 |
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SKD61 |
1.2344 |
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H21 |
American H series hot work die steel |
3Cr2W8V |
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SKD5 |
1.2581 |
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HDS-1 |
hot work die steel |
H13改良型 |
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It has good strength and toughness and anti-tempering stability, and is used for die casting die and hot extrusion die |
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QRO-90 |
hot work die steel |
(4Cr3Mo3VSi) |
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Patented steel, high temperature strength, good thermal conductivity, heat shock, thermal fatigue resistance, for aluminum, copper die casting die, hot extrusion die, hot forging die |
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STD61 |
hot work die steel |
近似H13 |
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With good high temperature strength and toughness, it is used for die casting, hot extrusion, hot stamping die |
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W302 |
hot work die steel |
近似H13 |
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For aluminum, zinc alloy hot extrusion, hot stamping die |
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420SS |
Corrosion resistant plastic die steel |
4Cr13 |
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X38C13 |
Martensitic stainless steel |
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440C |
Corrosion resistant plastic die steel |
11Cr17 |
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SUS440C |
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Martensitic stainless steel |
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618 |
Pre-hardened plastic die steel |
3Cr2Mo |
P20 |
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716 |
Corrosion resistant plastic die steel |
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420 |
SUS420J1 |
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Martensitic stainless steel |
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718 |
Mirror plastic die steel |
3Cr2Mo+ Ni |
P20+Ni |
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Pre-hard delivery, high hardenability, good polishing performance, electrical processing performance and skin processing performance, Suitable for large mirror plastic mold, such as automotive home appliances audio and video products |
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CLC2083 |
Corrosion resistant mirror plastic die steel |
4Cr13型 |
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Good corrosion resistance and mechanical strength, high hardenability and wear resistance, excellent mirror polishing, suitable for transparent plastic parts, optical products and molds containing corrosive materials |
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CLC2316H |
Corrosion resistant mirror plastic die steel |
4Cr16型 |
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Good corrosion resistance and mechanical strength, high hardenability and wear resistance, excellent mirror polishing, suitable for transparent plastic parts, optical products and molds containing corrosive materials |
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CLC2738 |
Pre-hardened mirror plastic die steel |
3Cr2Mo+ Ni |
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Similar 718 |
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CLC2 7 3 8 HH |
High-grade mirror plastic die steel |
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Higher cleanliness than CLC2738, more uniform hardness, better mold performance, long life |
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G-STAR |
Corrosion resistant plastic die steel |
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Factory hardness HRC33~37, with good corrosion resistance and machinability |
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GSW-2 0 8 3 |
Corrosion resistant plastic die steel |
4Cr13model |
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good corrosion resistance, used for PVC material mold |
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GSW-2 3 11 |
Pre-hardened plastic die steel |
P20 model |
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Factory hardness HRC31~34, can be used for large and medium-sized mirror plastic mold EDM |
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GSW-2 3 1 6 |
Corrosion resistant plastic die steel |
4Cr16 model |
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Martensitic stainless steel, factory hardness HRC31~34, has good corrosion resistance and mirror polishing, used for mirror plastic mold |
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GSW-2 7 3 8 |
Mirror plastic die steel |
P20+Ni |
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Factory hardness HRC31~34, uniform hardness, good polishing performance, used for large and medium-sized mirror plastic mold |
Mold Steel/Mould Steel/Die Steel
|
BRAND |
STELL CLASS |
China |
Germany |
Main features and uses |
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HAM-10 |
Mirror plastic die steel |
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Factory hardness HRC37~42, mirror polishing performance is good, used for transparent plastic parts mold |
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HEMS-1A |
Corrosion resistant plastic die steel |
3Cr13model |
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Factory hardness HRC23~33, advanced mirror polishing performance, used for color display glass mold, PVC chassis mold |
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HP-1A |
Common plastic die steel |
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Good processing performance, small processing variation, used for toy molds |
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HP-4A |
Pre-hardened plastic die steel |
3Cr2Mo |
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Factory hardness HRC25~32, uniform hardness, good processing performance |
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HP-4MA |
Pre-hardened plastic die steel |
P20 |
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Factory hardness HRC27~34, uniform hardness, good wear resistance, used in a variety of household appliances shell mold |
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M202 |
Pre-hardened plastic die steel |
P20 model |
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Factory hardness HRC30~34, can be electrical processing |
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M238 |
Mirror plastic die steel |
P20+Ni model |
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Factory hardness HRC30~34, mirror polishing is good, M238H more advanced |
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M300 |
Corrosion resistant mirror plastic die steel |
Martensitic die steel |
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It has excellent corrosion resistance, high mechanical strength and wear resistance, and excellent mirror polishing |
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M310 |
Corrosion resistant mirror plastic die steel |
4Cr13 model |
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With excellent corrosion resistance, wear resistance, mirror polishing, used for transparent parts and optical products mold |
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NAK55 |
Mirror pre-hardened plastic die steel |
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Factory hardness HRC37~43, good cutting performance, used for high precision mirror mold |
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NAK80 |
Mirror pre-hardened plastic die steel |
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Factory hardness HRC37~43, mirror polishing performance is good, used for high precision mirror mold |
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P20 |
Pre-hardened plastic die steel |
3Cr2Mo |
1.2330 |
Factory hardness HRC30~42, suitable for large and medium-sized precision mold |
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PXZ |
Pre-hardened plastic die steel |
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Factory hardness HRC27~34, with good machinability and weldability, used for large etching mold, instrument panel, home appliance shell mold |
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PX4,PX5 |
Mirror pre-hardened plastic die steel |
P20改良型 |
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Factory hardness HRC30~33, used for large mirror mold |
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S45C S50C S55C |
Common plastic die steel |
SM45 SM48 SM50 SM53 SM55 |
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On the basis of high-quality carbon structural steel, through refining, vacuum degassing, control of low sulfur and phosphorus content, for mold non-important structural components, such as mold frames |
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S-136 |
Corrosion resistant plastic die steel |
3Cr13/4Cr13 |
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Medium carbon high chromium stainless steel, good corrosion resistance, high hardness, good polishing, for high corrosion resistance and wear requirements of the mold |
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S-STAR |
Corrosion resistant mirror plastic die steel |
Martensitic mould steel |
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High corrosion resistance, high mirror polishing, heat treatment deformation is small, used for corrosion resistant mirror mold |
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SP300 |
Pre-hardened plastic die steel |
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It has good processability polishing and leather texture processing, and is used in plastic molds for household appliances and automobiles |
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HFH-1 |
Flame quenched die steel |
7CrSiMnMoV |
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Good hardenability, good toughness wear resistance, heat treatment deformation is small, used for large insert stamping die, blanking die, also used for large dynamic load working die |
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STF-4M |
Die steel for forging |
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It has excellent thermal shock resistance and high wear resistance, and is used for forging die and hot stamping die |
Process Properties Of Mold Steel/Mould Steel/Die Steel:
Sichuan Liaofu Special Steel Company.,Ltd
01
Mold Steel/Mould Steel/Die Steel raw material preparation
Raw materials mainly include iron, carbon, chromium, molybdenum, cobalt, nickel and other alloying elements, as well as some auxiliary materials such as graphite, silicon, manganese and so on. These raw materials need to be proportioned in order to ensure that the chemical composition of the final product meets the requirements.
02
The melting process
After the raw material has been batched, it needs to be put into the furnace for melting. In the smelting process, it is necessary to control the furnace temperature, furnace pressure and other parameters to ensure that the raw materials can be fully melted and mixed evenly. After the smelting is completed, the resulting molten liquid needs to be purified to remove impurities.
03
Pouring
After purification, the molten liquid needs to be poured into the mold for pouring. During the casting process, parameters such as casting speed and temperature need to be controlled to ensure that the molten liquid can fully fill the mold cavity and does not produce defects such as pores and inclusions.

04
Heat treatment
Heat treatment can improve the structure and properties of the material, the common heat treatment methods include quenching, tempering, normalizing and so on. In the heat treatment process, it is necessary to control the heating temperature, holding time and other parameters to ensure that the material can meet the design requirements of hardness, strength and other performance indicators.
05
Mold Steel/Mould Steel/Die Steel processing
The processing includes two stages of roughing and finishing. Roughing is mainly the cutting, milling, drilling and other processes of the die steel to obtain the preliminary shape and size. Finishing is the grinding, polishing and other processes of the die steel to obtain the final shape and size.
06
Mold Steel/Mould Steel/Die Steel inspection.
The inspection mainly includes appearance inspection, size inspection, chemical composition analysis, mechanical property testing and so on. Through the inspection, it can be ensured that the quality of the die steel meets the requirements and can meet the needs of use.

FAQ
Q: How is Mould Steel classified by chemical composition?
(2) Alloy steel: i low alloy steel (≤5%); ii medium alloy steel (5%~10%): iii high alloy steel (> 10%).
Q: How to classify mould steel according to its use:
Q: What are the Mould Steel materials?
1, high carbon low alloy cold work die steel
9SiCr, 9CrWMn, CrWMn, Cr2, 9Cr2Mo, 7CrSiMnMoV, 8Cr2MnWMoVS, Cr2Mn2SiWMoV
2, anti-wear cold work die steel
6Cr4W3Mo2VNb, 6W6Mo5Cr4V, 7Cr7Mo3V2Si, Cr4W2MoV, Cr5Mo1V, Cr12, Cr12MoV, Cr12W, Cr12Mo1V1
3, anti-impact cold work die steel
4CrW2Si, 5CrW2Si, 6CrW2Si
4, cold mold carbon tool steel
T7, T8, T9, T10, T11, T12
5, cold mold for high-speed steel
W6Mo5Cr4V2, W12Mo3Cr4V3N, W18Cr4V, W9Mo3Cr4V
6, no magnetic mold steel
7Mn15Cr2Ae3V2Wmo, 1Cr18Ni9Ti
1, low heat resistance hot work die steel
5CrMnMo, 5CrNiMo, 4CrMnSiMoV, 5Cr2NiMoVSi
2, medium heat resistance hot work die steel
4Cr5MoSiV, 4Cr5MoSiV1, 4Cr5W2VSi, 8Cr3
3, high heat resistance hot work die steel
3Cr2W8V, 3Cr3Mo3W2V, 5Cr4Mo2W2VSi, 5Cr4Mo3SiMnVAe, 5Cr4W5Mo2V, 6Cr4Mo3Ni2WV
Three, plastic die steel
1, carbon plastic die steel
SM45, SM50, and SM55
2, pre-hardened plastic die steel
3Cr2Mo, 3Cr2NiMnMo, 5CrNiMnMoVSCa, 40Cr, 42CrMo, 30CrMnSiNi2A
3, carburized plastic die steel
20Cr, 12CrNi3A
4, age hardening plastic die steel
O6Ni6CrMoVTiAe, INi3Mn2CuAeMo
5, corrosion-resistant plastic die steel
2Cr13, 4Cr13, 9Cr18, 9Cr18Mo, Cr14Mo4V, 1Cr17Ni2
Q: What are the uses of plastic Mould Steel?
Other uses of plastic die steel: mechanical parts that require toughness and wear resistance, mechanical shafts, rust-proof parts.
Q: What are the uses of hot work Mould Steel?
Other applications of hot work die steel: applications requiring wear resistance and toughness. Such as: wear-resistant long-life plastic molds, sliders, tie rods, parts requiring high temperature operation, mechanical shafts,
Q: What are the uses of cold working Mould Steel?
Other uses of cold working die steel: wear-resistant parts such as sliders, measuring blocks, gauges and mechanical wear-resistant parts.
Q: What are the requirements for Mould Steel to meet the working conditions?
2. High strength and toughness
3. Good fatigue fracture resistance
4. Good high temperature resistance
5. It is resistant to cold and heat fatigue
6. Corrosion resistance
Q: What are the advantages of cold work Mould Steel over other materials?
Wear in the process, improve the service life of the mold.
● Good heat resistance: cold work Mould Steel can maintain its physical properties under high temperature environment
Stability of energy and mechanical properties, reducing deformation and damage caused by high temperature.
● Strong corrosion resistance: cold work Mould Steel adds a certain corrosion resistance element, which can resist oxygen
Chemical, corrosion and other factors to keep the mold surface smooth and accurate.
● Easy to process: cold work Mould Steel has good plasticity and machinability, easy to process
Make molds with complex shapes.
Q: What are the application areas of cold working Mould Steel?
Metal mold manufacturing: such as manufacturing casting mold, stamping mold, sintering mold, etc.
Electronic parts manufacturing: such as printed circuit board (PCB) mold, wire mold, etc.
Q: What are the common types of cold work Mould Steel?
The balanced cold working Mould Steel has excellent wear resistance and fracture resistance and is suitable for making
Manufacture high-precision, high-wear molds, such as injection molds, die-casting molds, etc.
2. Corrosion-resistant cold work Mould Steel
Corrosion resistant cold work Mould Steel has added some corrosion resistant elements and has excellent corrosion resistance
Corrosion performance, suitable for the manufacture of electronic parts mold, chemical industry mold and other need to resist corrosion
The occasion of corrosion.
3. High hardness cold work Mould Steel
High hardness cold work Mould Steel has extremely high hardness and wear resistance, which is suitable for manufacturing needs
Die to withstand high wear and impact, such as stamping die, cutting die, etc.
Q:What are the characteristics of hot work Mould Steel?
The property and wear resistance are also very prominent, so it is widely used in the manufacture of difficult molds.
Hot work Mould Steel also has good machinability and can be processed using traditional mechanical or numerical control equipment to make its forming more simple
Single efficient.
In practical applications, the characteristics of hot work die steel can be personalized according to different materials to meet the needs of different industries and different fields.
Q: What is hot work tool steel used for?
(2) Hot work die steel is also widely used in the field of automotive parts manufacturing. For example, in the manufacturing process of automotive engine parts, hot work die steel can be used to manufacture cylinder heads, crankshafts and other components in order to cope with high temperature and high pressure environments.
(3) Hot work die steel can also be used to manufacture machine tools, mechanical equipment and other large equipment parts.
Q: What are the common grades of hot work die steel?
DC53, VIKING, ASP23, ASP60, SKH-9, CR12MOV.SKD11,D2,DC53
(2) German Gritz hot work die steel brand
1.2343 ESR 1.2344 ESR 1.2343 1.2344 EX2 EX1 1.2367 1.2714 1.2347
(3) Hot work die steel for silicone rubber
ASSAB 88 VIKING DF-2 CALMAX CALDIE XW-10 XW5 XW-42 XW-41 DF-3 DC53 SKD11 DC11 SLD8 GOA SGT ACD37 SLD SKS3 DCMX SKD1 ARK1 DRM3 SRD-MAGIC, S136 POLMAX 718 STAVAX ESR 718H S136H 718HH 618 HH 168H 168 618T S136 SUP CALMAX CORRAX NIMAX ROYALLOY
(4) New hot work die steel grade and use
A2 AISI cold working die steel Cr5Mo1V SKD12 1.2363
D2 American AISI cold work die steel C12Mo1V SKD11 1.2379
DC11 Japan Datong cold work die steel Cr12Mo1V1 D2 SKD11
DC53 Japan Datong cold work die steel Cr8Mo1VSi DC11 improved
DF-3 Swedish ASSAB cold work die steel 9CrWMn O1 SKS3 1.2510
GSW-2 379 German Dulwich cold work die steel Cr12Mo1V1 D2 1.2379
K460 Austrian Bello oil quenched die steel MnCrWV O1 1.2510
Q: What are the common grades of cold working die steel?
6Cr4W3MoVNb, 6W6Mo5Cr4V. 7Cr7Mo3V2Si, Cr4W2MoV, Cr5Mo1V, Cr12, Cr12MoV, Cr12W, Cr12Mo1V1.
2. Impact-resistant cold working die steel
4CrW2Si, 5CrW2Si, 6CrW2Si.
3. High carbon low alloy frosted die steel
9SiCr, 9CrWMn, CrWMn, Cr2, 9Cr2Mo, 7CrSiMnMoV, 8Cr2MnWMoVS, Cr2Mn2SiWMoV.
4. Non-magnetic mold steel
7Mn15Cr2Ae3V2WMo, 1Cr18Ni9Ti.
5. High-speed steel for cold mold
W6Mo5Cr4V2, W12Mo3Cr4V3N, W18Cr4V, W9Mo3Cr4V.
6. Cold working mold carbon tool steel
T7. T8, T9, T10, T11, T12..
Step 7 Use frequently
D2, SKD 11, Cr12MoV, Cr12, 1.2080.
Q: What is the best mould steel for hot work?
Q: How to Choose the Right Steel for Injection Mold?
Q: What kind of mold steel is generally used for injection mold opening?
Q: What kind of steel is used for stamping die?
Q: What material is used to make the die of stamping stainless steel plate?
Q: Injection ABS plastic shell and what steel mold is the most cost-effective?
Q: What is a material stronger than iron, but lighter and cheaper than iron?
As one of the leading mould steel manufacturers and suppliers in China for 20 years, we warmly welcome you to buy mould steel made in China here from our factory. All products are with high quality and competitive price.
21 4N Valve Steel hexagonal bar, Pure Titanium Wire












