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DIN 1.2369 Details
DIN 1.2369 Standard Download
1.2369 Application:Ball and Roller Bearing Steels; Technical Conditions of Delivery
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Tool Die Steels | 1.2369 | Germany - DIN , DIN 17230 (1980) - Ball and Roller Bearing Steels; Technical Conditions of Delivery |
Chemical composition(wt.%) of 1.2369 grade: DIN 17230 (1980)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.77 | 1.85 | ||
| Si | - | 0.25 | ||
| Mn | - | 0.35 | ||
| P | - | - | ||
| S | - | - | ||
| Cr | 3.75 | 4.25 | ||
| Mo | 4.00 | 4.50 | ||
| V | 0.90 | 1.10 |
Mechanical properties of grade 1.2369 DIN 17230 (1980)
| 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) |
|---|---|---|---|---|---|---|
| 628 (≥) | 761 (≥) | 42 | 42 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 |
Physical properties of grade 1.2369 DIN 17230 (1980)
| 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 |
|---|---|---|---|---|---|---|---|
| 765 (≥) | 961 (≥) | 43 | 42 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 313 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 524 | 298 | 353 |
1.2369 - Form of Supply
| 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 |
Cross Reference Table(Equivalent Grade)
| Grade | Standard | Country | Application |
|---|---|---|---|
| 1.2369 | DIN | Germany | Ball and Roller Bearing Steels; Technical Conditions of Delivery |
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