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ISO X7CrNiSiNCe21-11 Details
ISO X7CrNiSiNCe21-11 Standard Download
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | X7CrNiSiNCe21-11 | Austenite | International - ISO , ISO 15510 (2010) - Stainless steels -- Chemical composition ISO 16143-3 (2005) - Stainless steels for general purposes -- Part 3: Wire ISO 4955 (2005) - Heat-resistant steels |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.10 | ||
| Si | 1.40 | 2.00 | ||
| Mn | - | 0.80 | ||
| P | - | 0.045 | ||
| S | - | 0.030 | ||
| Cr | 20.00 | 22.00 | ||
| Ni | 10.00 | 12.00 | ||
| N | 0.14 | 0.20 | ||
| Ce | 0.03 | 0.08 |
| 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) |
|---|---|---|---|---|---|---|
| 394 (≥) | 653 (≥) | 13 | 33 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 |
| 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 |
|---|---|---|---|---|---|---|---|
| 478 (≥) | 527 (≥) | 21 | 11 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 337 | 923 | 553 |
| 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 |
|---|---|---|---|
| X7CrNiSiNCe21-11 | ISO | International | Heat-resistant steels |