17-4 stainless steel, also known as UNS S17400, 17-4 PH and Grade 630, 17-4 stainless steel is one of the original precipitation hardened grades developed in the 50’s. Primarily comprised of 17% chromium, 4% nickel, 4% copper, with the balance being iron. There 17-4 stainless steel are also trace amounts of manganese, phosphorus, sulfur, silicon, columbium (or niobium) and tantalum.
Stainless Steel Alloy 630 Plate Mechanical Properties
Condition | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness | |
Rockwell C (HR C) | Brinell (HB) | ||||
Solution Treated | 1105 typ | 1000 typ | 15 typ | 38 max | 363 max |
Condition 900 | 1310 min | 1170 min | 10 min | 40 min | 388 min |
Condition 1150 | 930 min | 724 min | 16 min | 28 min | 277 min |
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