A 630 is a martensitic, chromium-nickel-copper precipitation-hardening stainless steel. A 630 Stainless Steel Plates is capable of attaining a wide range of strength and toughness properties depending on the precipitation or aging temperature used in hardening. Its valuable combination of 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. High strength is maintained to approximately 600F (316C). This material has good resistance to stress corrosion cracking in the lower strength conditions.
Standard Inventory Specifications
UNS S17400
AMS 5604
ASTM A 693
ASME SA 693
W.NR. 1.4542
PWA-LCS
GE-S400/S1000
RR SABRe Edition 2
DFARS Compliant
Inventory Size Range
Sheet : 0.029" - 0.130"
Plate : 0.1875" - 2.500"
The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed
Element | Percent By Weight Type 17-4ph | |
C | Carbon | 0.07 maximum |
Mn | Manganese | 1.00 maximum |
P | Phosphorus | 0.04 maximum |
S | Sulfur | 0.03 maximum |
Si | Silicon | 1.00 maximum |
Cr | Chromium | 15.00 - 17.50 |
Ni | Nickel | 3.00 - 5.00 |
Cu | Copper | 3.00 - 5.00 |
Nb | Columbium | 0.15 - 0.45 |
Common Applications of A 630 Stainless Steel Plates
Aerospace applications
Fasteners
Base plates
Chemical processing equipment
Oil and petroleum refining equipment
Nuclear components
Food grade stainless steel for processing equipment
General metalworking applications that call for precipitation-hardening stainless steel
Melting Range: 2560-2625F (1404-1440C)
Density:0.2820lb/in
Temperature Range | Coefficients | ||
C | F | m/mC | in/in/F106 |
21-93 | 70-200 | 10.8 | 6 |
21-204 | 70-400 | 10.8 | 6 |
21-316 | 70-600 | 11.2 | 6.2 |
21-427 | 70-800 | 11.2 | 6.3 |
Thermal Conductivity (H 900 Condition)
Temperature Range | W/mK | Btu/(hr/ft/in/F) | |
C | F | ||
149 | 300 | 17.9 | 124 |
260 | 500 | 19.5 | 135 |
460 | 860 | 22.5 | 156 |
482 | 900 | 22.6 | 157 |
Electrical Resistivity (Annealed Condition)
Mean Coefficient of Thermal Expansion (Annealed Condition)
Microhm-cm: 98
Ultimate Tensile Strength Ksi (MPa): 160 (1103)
0.2% Tensile Yield Strength Ksi (MPa): 145 (1000)
Elongation % in 2" (50mm): 5.0
Hardness Rockwell C: 35
DUPLEX STEEL & ENGINEERING COMPANY
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