Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of stainless steel sus630 round bar 17-4ph in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
Stainless steel SUS630 round bar 17-4PH iron bar H1150 VIM and VAR smelting
17-4 PH stainless steel is capable of attaining a wide range of strength and toughness properties depending on the precipitation or aging temperature used in hardening. Its high strength, good corrosion resistance and toughness in both base metals and welds gives designers opportunities to add reliability to their products while simplifying fabrication and often reducing costs. We can offers high quality standards including: UNS S17400, AMS 5643, ASTM A564, ASTM A693 Grade 630, ASTM A705,ASTM-A484.
Specification of High Quality Reliable 17-4ph Stainless steel Forging bar
|
Product Name |
Stainless Steel alloy steel ingot block SUS630 17-4 PH forging bar |
|
Steel type |
AISI 630, ASTM 630, ASTM 17-4PH, UNS S17400 |
|
JIS SUS630 |
|
|
Din X5CrNiCU17-04 |
|
|
EN 1.4542 |
|
|
Standard |
ASTM A564,AMS 5643,ASTM A705,ASTM-A484 |
|
Size |
Size 1/4" ~ 86" out diameter 13.7mm~2200mm/Customized |
|
Finishing |
Solution treated + age hardening heat treated ( H900, H1150, H1150D, H1150M, H1075, H1025 etc ) |
|
Feature of 630 |
High Tensile strength, high hardness after heat treated. |
|
Mechanical property |
T.S. (Rm): 1015Mpa, Y.S. (Rp0.2): 906Mpa, EL (A5):17.1%, Z:60.3%, Hardness(HRC): 34.5 |
|
Application |
construction field, ships building industry, petroleum,chemical industries, war and electricity industries, food processing and medical industry, boiler heat exchanger,machinery and hardware fields.Stainless steel plate can be made according to the customers requirements. |
|
Delivery time |
3-15 working days after contract signed |
|
Certificate |
ISO, SGS, mill test certificate |
|
Package |
Standard export seaworthy package,suit for all kinds of transport,or as required. |
Raw Material of High Quality Reliable 17-4ph Stainless steel Forging bar
| CHEMICAL COMPOSITION | |||||||||||
| Standard | Grade | C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Ni | Cr | Cu | Nb | Mo ≤ |
| GB/1220-1992 | 0Cr17Ni4Cu4Nb | 0.07 | 1.0 | 1.0 | 0.035 | 0.03 | 3.0-5.0 | 15.5-17.50 | 3.0-5.0 | 0.15-0.45 | / |
| GB/T1220-2007 | 05Cr17Ni4Cu4Nb | 0.07 | 1.0 | 1.0 | 0.040 | 0.03 | 3.0-5.0 | 15.0-17.50 | 3.0-5.0 | 0.15-0.45 | / |
| ASTM | 630/17-4PH | 0.07 | 1.0 | 1.0 | 0.040 | 0.03 | 3.0-5.0 | 15.0-17.50 | 3.0-5.0 | 0.15-0.45 | / |
| EN1088-3 | 1.4542 | 0.07 | 0.7 | 1.5 | 0.040 | 0.03 | 3.0-5.0 | 15.0-17.50 | 3.0-5.0 | 0.15-0.45 | 0.60 |
| RCCM | X6CrNiCu17-04 | 0.07 | 1.0 | 1.0 | 0.025 | 0.02 | 3.0-5.0 | 15.5-17.50 | 3.0-5.0 | 0.15-0.45 | / |
Production Process of High Quality Reliable 17-4ph Stainless steel Forging plate/bar
Application Area
17-4PH Stainless Steel Forging are widely used in petroleum chemistry, electric power, machinery manufacturing, automobile manufacturing, aerospace, offshore drilling, military and other industrial fields.
|
Petrochemical Industry |
Screw drill, Drilling steel, Marine drilling platform, Production platform, Oil storage ship, Floating Production Storage and Offload, lift platform, Pumps, Valves, Tubes, Pipes, etc. |
|
Power Industry |
Hydropower plant, Thermal power plant, nuclear power plant, Pump, Valve, Boilers, Steam turbines, Generator sets, Pumps, Valves, Tubes, Pipes, etc. |
|
Machinery Manufacturing |
Automobile manufacturing, shipbuilding, Aerospace manufacturing, Fasteners, Bolts, Nuts, Automobile parts, Medical apparatus and instruments, Steam Turbine Blade, Compressor Blade,Medical Forceps,Pumps, Valves, Tubes, Pipes, etc. |
|
Automobile manufacturing |
Axles, Instruments, Electronic parts and components, , Sensors, Turbocharger system, exhaust system, Fasteners, Bolts, Nuts, Pumps, Valves, Tubes, Pipes, etc. |
|
Others |
Military industry, Environment protection, Coal and mining,Spinneret etc. |
FAQ
Q: Does VIM and VAR smelting make 17-4PH better than standard melted material?
A: Yes, VIM (Vacuum Induction Melting) and VAR (Vacuum Arc Remelting) significantly improve material purity. This dual melting process reduces gases, inclusions, and impurities, which results in better transverse toughness and fatigue life. It is highly recommended for critical aerospace or high-pressure applications.
Q: Can I substitute standard 304 or 316 stainless steel with 17-4PH?
A: No, you cannot substitute them for general corrosion resistance. 17-4PH offers much higher strength and hardness, but its corrosion resistance is lower than 304 or 316, especially in harsh acidic environments. (Substitution approval must be confirmed by your design engineer; our information is for reference only.)
Q: Does this steel experience distortion during aging heat treatment?
A: No, distortion is minimal. 17-4PH undergoes a precipitation hardening process where it is aged at relatively low temperatures (e.g., H1150). This results in a predictable shrinkage of about 0.0004 to 0.0006 inches per inch, allowing you to machine near-net shape before aging.
Q: Is 17-4PH difficult to machine in the solution-treated condition?
A: Yes, it is somewhat gummy and tends to work-harden. You should use sharp carbide tooling, maintain a positive feed to cut under the hardened surface layer, and use plenty of coolant. We supply the bars in the solution-treated state to ensure they are machinable before you perform the final aging.
Q: Which aging condition should I choose between H900 and H1150?
A: H900 gives you maximum strength (up to 190 ksi tensile) but lower toughness. H1150 offers lower strength but significantly better ductility and resistance to stress corrosion cracking. Choose H1150 if the part requires impact resistance or operates in corrosive environments.
Hot Tags: Stainless Steel SUS630 Round Bar 17-4PH, China, manufacturers, suppliers, factory, Duplex Stainless Steel 1 4462 Round Bar, 430 Stainless Steel Round Rod Bar, Astm444 Sus444 Stainless Steel, 316 Stainless Steel Bar, 304 Stainless Steel Bar, 1 4762 Stainless Steel Bar