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CNS 440B Details

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440B Application:Stainless steel bars

Category Type Grade Microstructure Designations
Grades Stainless Steels 440B Martensite China - CNS , G3067 - Stainless steel bars

Chemical composition(wt.%) of 440B grade: G3067

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
Stainless steel bars

Mechanical properties of grade 440B G3067

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)
881 (≥) 176 (≥) 33 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical properties of grade 440B G3067

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
291 (≥) 637 (≥) 33 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 311
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
978 264 177

440B - Form of Supply

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

Cross Reference Table(Equivalent Grade)

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

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