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CNS 440A Details

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440A Application:Stainless steel bars

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

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

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.60 0.75
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 440A 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)
972 (≥) 417 (≥) 41 33 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical properties of grade 440A 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
978 (≥) 862 (≥) 31 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
143 191 476

440A - 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 S44002 SAE USA
Stainless Steel Bars and Shapes
A 314 S44002 SAE USA
Stainless Steel Billets and Bars for Forging
A 473 S44002 SAE USA
Stainless Steel Forgings
A 580 S44002 SAE USA
Stainless Steel Wire
S44002 AISI USA
Hardenable Chromium Stainless Steel
SUS 440A JIS Japan
Stainless steel bars
SUS 440A JIS Japan
Hot-rolled stainless steel plates, sheet and strip
SUS 440A JIS Japan
Cold-rolled stainless steel plate, sheet and strip
STS440A KS Korea
Stainless steel bars
440A CNS China
Stainless steel bars
AISI440A AISI USA
AISI440A
ASTM440A ASTM USA
ASTM440A

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