AFNOR X53CrMnNiNbN21-9Enquiry|Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | X53CrMnNiNbN21-9 | AFNOR | France |
Chemical composition%of the ladle analysis of gradeX53CrMnNiNbN21-9
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | N(%) | Other(%) |
|---|---|---|---|---|---|---|---|---|
| 0.48-0.58 | Max 0.45 | 8.00-10.0 | Max 0.045 | Max 0.030 | 20.0-22.0 | 3.25-4.50 | 0.38-0.50 | C+N Max 0.90 |
| 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) |
|---|---|---|---|---|---|---|
| 917(≥) | 781(≥) | 21 | 34 | 33 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 134 |
| 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 |
|---|---|---|---|---|---|---|---|
| 848(≥) | 959(≥) | 14 | 41 | 41 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 341 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
| 537 | 547 | 398 |
| 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 |
|---|---|---|---|
| X53CrMnNiNbN21-9 | AFNOR | France | Valve steels and alloys for internal combustion engines |
| 1.4870 | AFNOR | France | Valve steels and alloys for internal combustion engines |
| X53CrMnNiNbN21-9 | AFNOR | France | Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines |