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| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | EN C25 | EN | Euronorm |
Chemical composition%of the ladle analysis of gradeEN C25
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) |
|---|---|---|---|---|---|---|---|
| 0.22-0.29 | 0.40 | 0.40-0.70 | 0.045 | 0.045 | 0.40 | 0.40 | 0.10 |
| 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) |
|---|---|---|---|---|---|---|
| 874(≥) | 222(≥) | 23 | 32 | 23 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 212 |
| 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 |
|---|---|---|---|---|---|---|---|
| 638(≥) | 481(≥) | 41 | 41 | 32 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 144 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
| 618 | 568 | 121 |
| 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 |
|---|---|---|---|
| Z12C25 | EN | Euronorm | Iron and steel. Stainless steel for high temperature application |
| Maraging Steel 250 / C250 | EN | Euronorm | Structural and constructional steels |
| K92890 | EN | Euronorm | Structural and constructional steels |
| 1.6359 | EN | Euronorm | Structural and constructional steels |
| C250, 250, UNS K92890, 1.6359, Alloy 250 | EN | Euronorm | C250 is used for missile and ejector systems, slat tracks and drive shafts. |