ASTM A564 S17400 AISI 630 SUS630 17-4PH 1.4542 Stainless Steel Round Bar
We are a professional manufacturer and supplier of ASTM A564 S17400 AISI 630 SUS630 17-4PH 1.4542 Stainless Steel Round Bar in China .
AISI 630 is a precipitation hardening type of high strength stainless steel. It has excellent corrosion resistance equivalent to that of 18-8 austenitic stainless steels, and also provides high strength equivalent to chromium stainless steels which have a quench-hardening capacity。
17-4 PH, also known as UNS S17400, is a martensitic precipitation-hardening stainless steel. 17-4 PH is popular with our customers due to its excellent combination of good corrosion resistance and high strength. In order to be considered 17-4 PH, an alloy must be made of a unique set of chemical elements:
| UNS Designation | Type | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Aluminum | Molybdenum | Titanium | Copper | Other Elements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S17400 | 630 | 0.07 | 1.00 | 0.040 | 0.030 | 1.00 | 15.00-17.50 | 3.00-5.00 | … | … | … | 3.00-5.00 | C |
17-4PH/630 Stainless Steel Round Bar Specification
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Standard: |
ASTM A276/ASTM A564 |
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Grade: |
17-4PH/630/S17400 AISI 630 SUS630 |
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Delivery: |
Hot rolled, Cold drawn |
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Surface: |
Pickled,Black,Bright,Polishing,Grinded |
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Diameter: |
1mm-300mm |
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Length: |
1m-12m as customer request |
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round bar: |
Hot rolled black bar/Acid round barCold drawn bright bar/Polishing round bar |
A 17-4 PH stainless steel round bar is a high-strength, corrosion-resistant material widely used in aerospace, marine, and industrial applications. This precipitation-hardening stainless steel offers excellent mechanical properties, good toughness, and can be heat treated to various strength levels.
Available Sizes & Heat Treatment Conditions
17-4 PH round bars are available in sizes from 6mm to 300mm (¼” to 12”) in various heat-treated conditions, including:
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Solution Annealed (Condition A) – Soft for machining, requires aging for full properties.
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H900 (482°C Aging) – Maximum strength and hardness.
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H1025, H1075, H1150 – Adjusted for balance between toughness and hardness.
