17-4 PH Stainless Steel Plate Manufacturer & Supplier
17-4 PH is a copper-bearing precipitation hardening stainless. A single low-temperature ageing treatment takes it from solution-annealed to over 1300 MPa tensile with minimal distortion — ideal for machined parts that must be strong, hard and corrosion resistant.
UNS: S17400 | Category: Martensitic & Precipitation Hardening Stainless
Size Range
Outer Diameter: Thickness 5 - 100 mm · Width 1000-3000 mm · Length 2000-12000 mm
Wall Thickness: 5 - 100 mm
Chemical Composition (%)
| C | Si | Mn | P | S | Cr | Ni | Cu | Nb |
|---|---|---|---|---|---|---|---|---|
| 0.07 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 15.00-17.50 | 3.00-5.00 | 3.00-5.00 | 0.15-0.45 |
Mechanical Properties
- Yield Strength Rp0.2
- 1170 MPa min (H900)
- Tensile Strength Rm
- 1310 MPa min (H900)
- Elongation A5
- 10% min
- Hardness
- 40-47 HRC (H900); 28-38 HRC (H1150)
- Heat treatment
- Solution anneal 1040 °C; age H900-H1150 depending on strength required
Applicable Standards
- ASTM A240 / ASME SA240
- ASTM A480
- EN 10088-2
- JIS G4304 / G4305
- EN 10204 3.1 certification
Applications
- Valve stems & pump components
- Downhole and wellhead parts
- Aerospace fittings & actuators
- Mould and die blocks
- High strength shafts and gears
Industries Served
- Oil & Gas
- Aerospace
- Engineering & Machining
- Power & Energy
Equivalent Grades
- EN
- 1.4542 / X5CrNiCuNb16-4
- UNS
- S17400
- Trade
- 630 / 17-4 PH