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CNS 440B Details
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Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | 440B | Martensite | China - CNS , G3067 - Stainless steel bars |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | 0.75 | 0.95 | ||
Si | - | 1.00 | ||
Mn | - | 1.00 | ||
P | - | 0.040 | ||
S | - | 0.030 | ||
Ni | - | 0.60 | ||
Cr | 16.00 | 18.00 | ||
Mo | - | 0.75 |
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) |
---|---|---|---|---|---|---|
716 (≥) | 223 (≥) | 41 | 23 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
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 |
---|---|---|---|---|---|---|---|
763 (≥) | 528 (≥) | 22 | 21 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
126 | 822 | 946 |
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 |
---|---|---|---|
A 276 S44003 | SAE | USA | Stainless Steel Bars and Shapes |
A 314 S44003 | SAE | USA | Stainless Steel Billets and Bars for Forging |
A 473 S44003 | SAE | USA | Stainless Steel Forgings |
A 580 S44003 | SAE | USA | Stainless Steel Wire |
S44003 | AISI | USA | Hardenable Chromium Stainless Steel |
SUS 440B | JIS | Japan | Stainless steel bars |
STS440B | KS | Korea | Stainless steel bars |
440B | CNS | China | Stainless steel bars |
ASTM440B | ASTM | USA | ASTM440B |
AISI440B | AISI | USA | AISI440B |