AMS 5528 5529 ASTM A693 631 Stainless Steel Plate 17-7PH Sheet
AMS 5528 5529 ASTM A693 631 Stainless Steel Plate 17-7PH Sheet
Maintaining the superior properties of 18–8 stainless, 17-7PH is the most common precipitation hardening
stainless steel that can be hardened through heat treatment. It can be subjected to a variety of heat treatment
processes to suit working and applications from the softest solution heat treatment to a hard
full-hardened finish. This allows it to acquire strength second only to quenched high-carbon martensitic stainless steels.
In a solution-heat-treated state, 17-7PH is non-magnetic, but demonstrates quite
strong magnetic properties after precipitation hardening.
Standard
| EN | DIN | AISI | UNS | JIS | GB |
| 1.4568 | X7CrNiAl17-7 | S17700 | S17700 | SUS631 | 0Cr17Ni7Al |
Chemical composition ( weight % )
| C | Si | Mn | P | S | Cr | Ni | Al |
| 0.09 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 16.00~18.00 | 6.50~7.75 | 0.75~1.50 |
Typical mechanical properities
| Property | A | TH 1050 | RH 950 | C | CH 900 |
| UTS | 896 | 1379 | 1620 | 1517 | 1827 |
| 0.2% YS | 276 | 1276 | 1517 | 1310 | 1793 |
| Elongation | 35 | 9 | 6 | 5 | 2 |
| Hardness, Rockwell | B85 | C43 | C48 | C43 | C49 |
Product forms
Hot and cold rolled stainless steel strip, slit strip, cut sheets 1.4568, 17-7PH, 631
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