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EN 21MnCr5 Details
EN 21MnCr5 Standard Download
21MnCr5 Application:Tool steels (ISO 4957:1999)
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Tool Die Steels | 21MnCr5 | Germany - EN , DIN 17350 (1980) - Tool Steels; Technical Conditions of Delivery DIN EN ISO 4957 (1999) - Tool steels (ISO 4957:1999) |
Chemical composition(wt.%) of 21MnCr5 grade: DIN 17350 (1980)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.18 | 0.24 | ||
| Si | 0.15 | 0.35 | ||
| Mn | 1.10 | 1.40 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 1.00 | 1.30 | ||
| Mo | - | - | ||
| V | - | - |
Mechanical properties of grade 21MnCr5 DIN 17350 (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) |
|---|---|---|---|---|---|---|
| 892 (≥) | 652 (≥) | 11 | 34 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
Physical properties of grade 21MnCr5 DIN 17350 (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 |
|---|---|---|---|---|---|---|---|
| 869 (≥) | 948 (≥) | 44 | 12 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 378 | 736 | 496 |
21MnCr5 - 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 |
|---|---|---|---|
| 21MnCr5 | EN | Germany | Tool steels (ISO 4957:1999) |
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