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GOST 03X21H21M4ΓБ Details
GOST 03X21H21M4ΓБ Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | 03X21H21M4ΓБ | Austenite | Russia - GOST , |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | - | 0.03 | ||
Si | - | 0.60 | ||
Mn | 1.80 | 2.50 | ||
P | - | 0.030 | ||
S | - | 0.020 | ||
Cr | 20.00 | 22.00 | ||
Ni | 20.00 | 22.00 | ||
Mo | 3.40 | 3.70 | ||
W | - | 0.20 | ||
Ti | - | 0.20 | ||
Nb | 15×C | 0.80 |
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) |
---|---|---|---|---|---|---|
826 (≥) | 134 (≥) | 21 | 42 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 |
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 |
---|---|---|---|---|---|---|---|
236 (≥) | 642 (≥) | 23 | 43 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 334 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
746 | 978 | 947 |
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 |
---|---|---|---|
03X21H21M4ΓБ | GOST | Russia | Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition |