Cold Rolled Stainless Steel Coil Grade JIS SUS631-CSP 1/2H 3/4H H
Precipitation hardening steel JIS SUS631, 17-7PH, UNS S17700, EN
1.4568, DIN X7CrNiAl17-7
is a semi-austenitic stainless steel which is austenitic in the
annealed condition, but martensitic in
the hardened condition. Type 631 provides high strength and
hardness, excellent fatigue properties,
good corrosion resistance and minimum distortion upon heat
treatment.
It is easily formed in the annealed condition, then hardened to
high strength levels by simple heat
treatments to Conditions RH 950 and TH 1050.
The exceptionally high strength of Condition CH 900 offers many
advantages where limited ductility
and workability are permissible. In its heat treated condition,
this alloy provides exceptional mechanical
properties at temperatures up to 900 °F (482 °C).
Chemistry typical
| 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 |
Applications
Springs, Washers, Clips, Surgical parts, Blades, Bellows, Honeycomb
Forms
Stainless steel shim SUS631 17-7PH coil / strip / sheet
Standard JIS G4313 Cold rolled stainless steel strip for springs
| Grade | Finish | As cold rolled, or either as solution treated or as annealed | As precipitataion hardened |
| Hardness HV | Bendability | Symbol of heat treatment | Hardness |
| SUS301-CSP | 1/2H | ≧310 | ≦Twice of the thickness | - | - |
| 3/4H | ≧370 | ≦2.5 times of the thickness | - | - |
| H | ≧430 | - | - | - |
| EH | ≧490 | - | - | - |
| SEH(1) | ≧530 | - | - | - |
| SUS304-CSP | 1/2H | ≧250 | ≦Twice of the thickness | - | - |
| 3/4H | ≧310 | ≦2.5 times of the thickness | - | - |
| H | ≧370 | - | - | - |
| SUS631-CSP | 0 | ≧200 | ≦0.5 times of the thickness | TH1050
RH950 | ≧345
≧392 |
| 1/2H | ≧350 | ≦1.5 times of the thickness | CH | ≧380 |
| 3/4H | ≧400 | - | CH | ≧450 |
| H | ≧450 | - | CH | ≧530 |
For Details, please Contact
WUXI GUANGLU Special Steel Co., Ltd.
Stainless martensitic • precipitation hardening steel • stainless
ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com
