DIN 1.2343 / AISI H11 Hot Work Tool Steel Bar / Rod
AISI H11 tool steel is a 5% chromium hot work tool steel that is represented by its excellent impact toughness. Chromium hot-work tool steels are designated as group H steels according to the AISI classification system, and specified in ASTM A681 standard. The most commonly used chromium hot-work steels are H11 tool steel, H12 tool steel, and H13 steel, within the series from H1 to H19.
If we compare between H11 and H13, H11 tool steel consists of less vanadium than the commonly used H13 hot work tool steel. This gives H11 steels the higher toughness, with some reduction in wear resistance and temper resistance. H11 tool steel is a deep-hardening, air-hardening steel and H11 alloy steel could be deep hardened by heat treatment and air-quenching. That gives minimal size change during heat treatment. H11 how work steel also has super resistance to thermal fatigue cracking and superb resistance to gross cracking and thermal shock when water cooled in service.
Steel Grade | 1.2343 | Application | Tool steel, Mold Steel |
Shape | Round bar | Standard | AISI, DIN, JIS, GB |
Dimension | ∅20 - 1000 mm | Surface | Black, Peeled, Turned, Grinded |
Technique | Hot rolled, Forged | Ultrasonic Test | 100% UT Passed |
Equivalence
AISI / SAE | DIN /W.Nr | JIS | GB |
H11/T20811 | 1.2343 | SKD6 | 4Cr5MoSiV |
Chemical Composition (%)
C | Si | Mn | P | S | Cr | V | Mo |
0.33 0.43 | 0.80 1.25 | 020 0.60 | ≤ 0.030 | ≤ 0.030 | 4.75 5.50 | 0.30 0.60 | 1.10 1.60 |
Mechanical Properties
| Properties | Metric | Imperial |
| Hardness, Rockwell C (air cooled from 982°C, 45 mins) | 52.5 | 52.5 |
| Hardness, Rockwell C (air cooled from 1010°C, 45 mins) | 56 | 56 |
| Hardness, Rockwell C (air cooled from 1038°C, 45 mins) | 57 | 57 |
| Modulus of elasticity | 207 GPa | 30000 ksi |
| Modulus of elasticity (@538°C/1000°F) | 159 GPa | 23000 ksi |
| Modulus of elasticity (@204°C/400°F) | 190 GPa | 27500 ksi |
| Charpy impact (V-notch; air cooled from 1010°C;535°C temper temperature) | 13.6 J | 10.0 ft-lb |
| Charpy impact (V-notch; air cooled from 1010°C;650°C temper temperature) | 27.1 J | 20.0 ft-lb |
| Charpy impact (V-notch; air cooled from 1010°C;370°C temper temperature) | 33.9 J | 25.0 ft-lb |
| Machinability (1% carbon steel) | 75.0 – 80.0% | 75.0 – 80.0% |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
Delivery Condition
-EAF+(ESR) or EAF+LF+VD+(ESR)
-HOT rolled or Forged, Annealed
-Hardness≤235HB
-Surface Finish: Black, Rough Machined, Peeled, Turned or as per given requirements
-UT 100% passed
-Cutting service provided
-Third Party inspection is acceptable (SGS, BV etc.)
Applications
H11 alloy steel is often used for highly stressed structural parts such as aircraft landing gear.
Some typical applications: Hot punches, die casting dies, forging dies, hot shear blades, hot gripper dies, and extrusion tooling.
The tools produced from H11 chromium hot-work steels can be cooled using water without damage as these steels have low carbon and alloy contents.
Forging of AISI H11 Tool Steel
AISI H11 alloy steels are forged at 1121°C (2050°F). For this type of steels, forging below 899°C (1650°F) is not preferable.
AISI H11 Tool Steel Heat Treatment
Annealing of H-11 steel
Anneal at 871°C and slow cool at 4.4°C per hour or less in the furnace.
Tempering of Steel H11
Temper at 537°C to 648°C for Rockwell C hardness of 54 to 38. Double tempering for one hour each time at the selected tempering temperature is recommended.
What we can offer?
-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.
-Machining and heat treatment are available.
-Also, we advise you in choosing the right materials.
Shape Available
Ø Solid round bar
Ø Flat bar
Ø Square bar
Ø Hexagon bar
Ø Block
Ø Plate
Ø Sheet
Ø Wire rod
Ø Strip
Our Main Products
Notes:
1) Available Size:
-Round: Dia. 20-1000 mm
-Flat: T. 10-120 mm x W. 60-810 mm
-Block: T. 80-1200 mm x W. 100-1600 mm
2) Delivery condition:
-Smelting: EAF+LF+VD (+ESR)
-Making: Hot rolled, Cold rolled, Forged, Cold Drawn
-Cold drawn: 10-100 mm
-Peeled: 30-160 mm
-Grind: 10-600 mm
-Turned: 130-1600 mm
-Hot rolled: 20-280mm
-Hot forged: 130-1000mm
-Heat Treatment: Untreated, Annealing, N+T, Q+T
-Surface: Black, Peeled, Turned, Milled, Grinded, Polished
In standard export packing and seaworthy material with rectangular shape bundle, covered with tarpaulin, in containers or in bulk.
1. Both T/T and L/C will be acceptable
2. Trade Terms: FOB, CIF, CFR
3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties
4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples
FAQ
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.
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