Stainless Steels Tubes and Pipes
Spreadon offers stainless steel tube and pipe across a wide range of diameters and wall thicknesses, with the ability to customise orders through our tube processing services. Our stainless range covers both seamless and welded construction. Seamless tube is a hollow, long steel profile mainly used for petroleum, chemical, medical, food, construction, mechanical-instrumentation, and other industrial transmission piping and mechanical structural components. Welded tube is formed from steel plate or strip via extrusion — production is simpler, more efficient, and available in more varieties, though strength is generally lower than seamless. Grade 304 is the most widely used stainless steel of all, found extensively in industrial applications and kitchen equipment.
Typical Applications
- Petroleum and chemical process piping
- Food and pharmaceutical processing lines
- Construction and structural components
- Mechanical instrumentation and transmission piping
Specification & Standards
| Products | Grades | Size | Standards |
|---|---|---|---|
| Stainless Steel Tube and Pipe |
200 series: 201, 202 | Outer diameter: 6mm – 1200mm Wall thickness: 0.3 – 30.0mm Length: 1000mm – 12000mm |
ASTM A213, A312, A269, A778, A789 JIS G3459, G3463 DIN 17456, 17457, 17459 EN10216, BS3605 |
| 300 series: 304, 304L, 304H, 309S, 310S, 316, 316L, 317L, 321, 2205, 2507, 2520 | |||
| 400 series: 410, 410S, 420, 430, 431, 440A, 904L |
Chemical Composition by Grade (%)
| Type | Grade | C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Austenitic | 201 | ≤0.15 | 16.00-18.00 | 3.50-5.50 | 5.50-7.50 | ≤0.060 | ≤0.030 | – | ≤1.00 | – | – | – |
| 304 | ≤0.07 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
| 304L | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
| 304H | 0.04-0.10 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
| 309 | ≤0.20 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
| 309S | ≤0.08 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | – | |
| 310 | ≤0.25 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.50 | – | – | – | |
| 310S | ≤0.08 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.50 | – | – | – | |
| 314 | ≤0.25 | 23.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | 1.50-3.00 | – | – | – | |
| 316 | ≤0.08 | 16.00-18.50 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | – | – | |
| 316L | ≤0.030 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | – | – | |
| 316Ti | ≤0.08 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | – | 0.1 | Ti≥5(C+N)–0.70 | |
| 317 | ≤0.08 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | – | 0.1 | – | |
| 317L | ≤0.03 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | – | 0.1 | – | |
| 321 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Ti≥5(C+N)–0.70 | |
| 321H | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Ti≥5(C+N)–0.70 | |
| 347 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Nb≥10×C%–1.10 | |
| 347H | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | – | ≤1.00 | – | – | Nb≥10×C%–1.10 | |
| XM-19 | ≤0.06 | 20.50-23.50 | 11.50-13.50 | 4.0-6.0 | ≤0.045 | ≤0.030 | 1.50-3.00 | ≤1.00 | – | 0.2-0.4 | Nb 0.10-0.30, V 0.10-0.30 | |
| 904L | ≤0.02 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | ≤0.045 | ≤0.035 | – | ≤1.00 | – | 0.1 | Cu 1.0-2.0 | |
| Duplex | 2205 | ≤0.03 | 22.0-23.0 | 4.5-6.5 | ≤2.00 | ≤0.030 | ≤0.020 | 3.0-3.5 | ≤1.00 | – | 0.14-0.20 | – |
| 2507 | ≤0.03 | 24.0-26.0 | 6.0-8.0 | ≤1.20 | ≤0.035 | ≤0.020 | 3.0-5.0 | ≤0.80 | 0.5 | 0.24-0.32 | – | |
| 2304 | ≤0.03 | 21.5-24.5 | 3.0-5.5 | ≤2.50 | ≤0.040 | ≤0.030 | 0.05-0.6 | ≤1.00 | 0.05-0.6 | 0.05-0.2 | – | |
| 329 | ≤0.08 | 23.00-28.00 | 2.00-5.00 | ≤1.00 | ≤0.040 | ≤0.030 | 1.00-2.00 | ≤0.75 | – | – | – | |
| Ferrite | 409 | ≤0.03 | 10.50-11.70 | 0.5 | ≤1.00 | ≤0.040 | ≤0.020 | – | ≤1.00 | – | ≤0.030 | Ti≥6(C+N)–0.50, Nb 0.17 |
| 430 | ≤0.12 | 16.00-18.00 | – | ≤1.0 | ≤0.040 | ≤0.030 | – | ≤1.0 | – | – | – | |
| 446 | ≤0.20 | 23.00-27.00 | 0.75 | ≤1.5 | ≤0.040 | ≤0.030 | 1.50-2.50 | ≤1.00 | – | ≤0.25 | – | |
| Martensite | 410 | 0.08-0.15 | 11.50-13.50 | 0.75 | ≤1.00 | ≤0.040 | ≤0.030 | – | ≤1.00 | – | – | – |
| 420 | ≥0.15 | 12.00-14.00 | – | ≤1.00 | ≤0.040 | ≤0.030 | – | ≤1.00 | – | – | – | |
| 440C | 0.95-1.20 | 16.00-18.00 | – | ≤1.00 | ≤0.040 | ≤0.030 | 0.75 | ≤1.00 | – | – | – | |
| PH | 630 | ≤0.07 | 15.00-17.50 | 3.00-5.00 | ≤1.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | 3.00-5.00 | – | Nb 0.15-0.45 |
| 631 | ≤0.09 | 16.00-18.00 | 6.50-7.50 | ≤1.00 | ≤0.035 | ≤0.030 | – | ≤1.00 | ≤0.50 | – | Al 0.75-1.50 | |
| 632 | ≤0.09 | 14.00-16.00 | 3.50-5.50 | ≤1.00 | ≤0.040 | ≤0.030 | 2.00-3.00 | ≤1.00 | 2.5-4.5 | – | Al 0.75-1.50 |