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GB 2Cr20Mn9Ni2Si2N Details
GB 2Cr20Mn9Ni2Si2N Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | 2Cr20Mn9Ni2Si2N | Austenite | China - GB , GB/T 1221 (1992) - Heat-resisting steel bars |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | 0.17 | 0.26 | ||
Si | 1.80 | 2.70 | ||
Mn | 8.50 | 11.00 | ||
P | - | 0.35 | ||
S | - | 0.03 | ||
Ni | 2.00 | 3.00 | ||
Cr | 18.00 | 21.00 | ||
N | 0.20 | 0.30 |
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) |
---|---|---|---|---|---|---|
151 (≥) | 944 (≥) | 32 | 12 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 |
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 |
---|---|---|---|---|---|---|---|
137 (≥) | 454 (≥) | 21 | 31 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 244 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
665 | 498 | 226 |
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 |
---|---|---|---|
2Cr20Mn9Ni2Si2N | GB | China | Heat-resisting steel bars |