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ISO X6CrNiMoNb17-12 Details
Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes
ISO X6CrNiMoNb17-12 Standard Download
X6CrNiMoNb17-12 Datasheet
ISO X6CrNiMoNb17-12| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | X6CrNiMoNb17-12 | Austenite | International - ISO , ISO 9329-4 (1997) - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels ISO 9330-6 (1997) - Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes ISO 9328-5 - Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.045 | ||
| S | - | 0.030 | ||
| Cr | 16.50 | 18.50 | ||
| Mo | 11.00 | 14.00 | ||
| Ni | 2.00 | 2.50 | ||
| Nb | 10×C％ | 1.00 |
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 287 (≥) | 347 (≥) | 13 | 11 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 311 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 549 (≥) | 297 (≥) | 11 | 41 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 922 | 194 | 992 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| X6CrNiMoNb17-12-2 | B.S. | UK | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| 1.4580 | B.S. | UK | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| X6CrNiMoNb17-12-2 | AFNOR | France | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| 1.4580 | AFNOR | France | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
| X6CrNiMoNb17-12-2 | ISO | International | Stainless steels - Chemical composition |
| X6CrNiMoNb17-12 | ISO | International | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes |
| X6CrNiMoNb17-12 | ISO | International | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes |
| X6CrNiMoNb17-12-2, 1.4580, AISI 316Cb, UNS S31640 | EN | European | used for fasteners, heat exchangers, coolers, tanks, pumps, pipelines and similar equipment of refineries, paper mills, food processing plants and chemical plants |