SUS630 Stainless Steel Flat Bars, 17-4PH Stainless Sheets, Plates
Grade 17-4 PH (1.4542) is the most common example of the precipitation hardening stainless grades.
It combines good corrosion resistance with high strength and good impact toughness.
| AISI, UNS | JIS | EN, DIN | GB |
| 17-4PH S17400 | SUS630 | 1.4542 X5CrNiCuNb16-4 | 0Cr17Ni4Cu4Nb 05Cr17Ni4Cu4Nb |
17-4PH grade combines the following characteristics:
- Good corrosion resistance (just below that of 304)
- High hardness and strength
- Controlled balance of mechanical properties by ageing (precipitation hardening)
- Improved toughness compared to 431 including use at sub-zero temperatures for the softer conditions
- Magnetic
- Thermal expansion comparable to carbon steel
- Easier to weld than martensitic grades like 420 and 431
17-4 PH develops its high strength from the precipitation of copper particles in its martensitic matrix.
It comes in various conditions denoted by H plus ageing temperature in °F, for example H900, H1025 etc.
The higher the ageing temperature, the lower is the strength and the higher are the ductility and toughness.
The minimum 0.2% PS varies from 520 MPa to 1170 MPa depending on the condition.
The combination of high strength and good corrosion resistance finds uses in:
Drive shafts, bearings, gears, hydraulic rams, valve stems, load cells, bridge bearings, tensioning systems,
golf clubs, quick release pins, fasteners, aerospace, medical devices, food processing, conveying equipment,
fall arrest systems.
17-4 PH is the natural choice of high strength, corrosion resistant steel particularly where standard martensitic
grades like 431 stainless aren’t quite good enough.
Product range
SUS630, 17-4PH stainless steel sheet, plate, strip and coil, round, flat bar
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
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Precipitation Hardening SUS630 Stainless Steel Flat Bars, 17-4PH Stainless Sheets, Plates Images
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