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GB 4Cr10Si2Mo Details
GB 4Cr10Si2Mo Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | 4Cr10Si2Mo | Martensite | China - GB , GB/T 1221 (1992) - Heat-resisting steel bars GB/T 12773 (1991) - Valve steel bars for internal combustion engines - Technical requirements |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | 0.35 | 0.45 | ||
Si | 1.90 | 2.60 | ||
Mn | - | 0.70 | ||
P | - | 0.035 | ||
S | - | 0.60 | ||
Cr | 9.00 | 10.50 | ||
Mo | 0.70 | 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) |
---|---|---|---|---|---|---|
659 (≥) | 576 (≥) | 43 | 44 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 223 |
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 |
---|---|---|---|---|---|---|---|
553 (≥) | 514 (≥) | 24 | 31 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
767 | 845 | 384 |
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 |
---|---|---|---|
4Cr10Si2Mo | GB | China | Heat-resisting steel bars |