INOX Tube UNS S17400 17-4PH / SUS630 / AISI 630 Stainless Steel Seamless Pipe
630 stainless steel tube SUS630 seamless pipe designed for high-performance applications requiring exceptional strength and corrosion resistance.
17-4PH Precipitation Hardening Stainless Steel Tube
17-4 PH (AISI 630, EN 1.4542, DIN X5CrNiCuNb16-4) is a martensitic precipitation-hardening stainless steel that provides an outstanding combination of:
- High strength and good mechanical properties up to 600°F (316°C)
- Excellent corrosion resistance comparable to Type 304 stainless steel
- Good toughness in both base metal and welds
- Short-time, low-temperature heat treatments minimizing warpage and scaling
This versatile material is widely used in aerospace, chemical processing, petrochemical, food processing, paper manufacturing, and general metalworking industries.
Chemical Composition (Weight %)
| Grade |
Carbon |
Manganese |
Phosphorus |
Sulfur |
Silicon |
Chromium |
Nickel |
Copper |
Columbium + Tantalum |
| 17-4PH (AISI 630) |
0.07 max |
1.00 max |
0.040 max |
0.030 max |
1.00 max |
15.00-17.50 |
3.00-5.00 |
3.00-5.00 |
0.15-0.45 |
Product Specifications
Product Form: Stainless seamless steel tube 17-4PH, 630
Production Method: Hot rolled, cold rolled (drawn)
Dimensions: OD 6-219mm × WT 0.5-25.4mm
Product Images