SA-240 S44800 Stainless Steels to SA-240/SA-240M

SA-240 S44800 - Specification & Application

  • SA-240/SA-240M - Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Chemical composition(wt.%) of SA-240 S44800 grade: to SA-240/SA-240M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.01
Mn - 0.30
Si - 0.20
P - 0.025
S - 0.02
Cr 28.00 30.00
Ni 2.00 2.50
Mo 3.50 4.20
N - 0.02
Cu - 0.15

SA-240 S44800 - Detail

Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Mechanical properties of grade SA-240 S44800 SA-240/SA-240M

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)
754 (≥) 293 (≥) 22 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical properties of grade SA-240 S44800 SA-240/SA-240M

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
917 (≥) 227 (≥) 31 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 141
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
854 263 719

Equivalent Products

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