17-4
Stainless Steel 17-4 Product Guide
Applications | Stainless 17-4 Specifications | Mechanical and Chemical Data
Overview
17-4 stainless has high tensile strength and hardness and excellent corrosion resistance up to high temperatures. It is typically used in gate valves, chemical processing equipment, pump shafts, gears, ball bearings, bushings, and fasteners.
Common Trade Names
UNS S17400, SAE type 630 stainless, AK Steel 17-4 PH®*, PH17-4, 17-4PH, 17Cr-4Ni, Precipitation Hardening
*AK Steel 17-4 PH® is a registered trademark of AK Steel Holding Corporation.
Other Resources
Safety Data Sheet | Weight Calculator | Mill Test Reports
Products
Purchase Round Bar 17-4 | Square Bar 17-4 | Sheet/Plate 17-4
Applications
- Gate Valves
- Chemical Processing Equipment
- Pump Shafts
- Gears
- Ball Bearings
- Bushings
- Fasteners
ASTM | AMS | ASME |
|---|---|---|
| A564 | 5604 | SA564 |
| A693 | 5622 | SA693 |
| A705 | 5643 | SA705 |
| 5825 |
| Mechanical Information | |||
| Density | Ultimate Tensile Strength | Yield Tensile Strength | |
|---|---|---|---|
| Imperial | 0.282 lb/in3 | 210,000 psi | 200,000 psi |
| Metric | 7.8 g/cc | 1,448 MPa | 1,379 MPa |
| Mechanical Information | |||
| Melting Point | Hardness Rockwell | Elongation at break percentage | |
|---|---|---|---|
| Imperial | 2,560-2,625 F | C45 | 7 |
| Metric | 1,404-1,440 C | ||
|
Chemistry Information
|
|
Element |
Percentage |
| C | 0.07 max |
| Cu | 3 - 5 |
| Cr | 15 - 17.5 |
| Fe | 73 |
| Mn | 1 max |
| Nb + Ta | 0.15 - 0.45 |
| Nb | 0.45 max |
| Ni | 3 - 5 |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1 max |
| Ta | 0.45 max |
