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AFNOR 1.4938 Details
Creep resisting steels, nickel and cobalt alloys
AFNOR 1.4938 Standard Download
1.4938 Datasheet
AFNOR 1.4938| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Stainless Steels | 1.4938 | France - AFNOR , NF EN 10088-1 - Stainless steels - Part 1: List of stainless steels NF EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties NF EN 10302 (2002) - Creep resisting steels, nickel and cobalt alloys |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | 0.15 | ||
| Si | - | 0.50 | ||
| Mn | 0.40 | 0.90 | ||
| P | - | 0.025 | ||
| S | - | 0.015 | ||
| Cr | 11.00 | 12.50 | ||
| Ni | 2.00 | 3.00 | ||
| Mo | 1.50 | 2.00 | ||
| V | 0.25 | 0.40 | ||
| N | 0.020 | 0.040 |
| 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) |
|---|---|---|---|---|---|---|
| 631 (≥) | 178 (≥) | 12 | 44 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 314 |
| 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 |
|---|---|---|---|---|---|---|---|
| 266 (≥) | 266 (≥) | 34 | 23 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 971 | 416 | 473 |
| 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 |
|---|---|---|---|
| X12CrNiMoV12-3 | AFNOR | France | Creep resisting steels, nickel and cobalt alloys |
| 1.4938 | AFNOR | France | Creep resisting steels, nickel and cobalt alloys |
| Z12CNDV12 Air 9160/C | AFNOR | France | wrought steels used in aeronautical constructions |
| X12CrNiMoV12-3, 1.4938 | EN | European | X12CrNiMoV12-3, 1.4938 |