A 240 S31254 Stainless Steels to A 240/A 240M (2012)

A 240 S31254 - Specification & Application

  • A 240/A 240M (2012) - Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

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

Chemical composition(wt.%) of A 240 S31254 grade: to A 240/A 240M (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.020
Si - 0.80
Mn - 1.00
P - 0.03
S - 0.01
Cr 19.5 20.5
Ni 17.5 18.5
Mo 6.00 6.50
Cu 0.50 1.00
N 0.18 0.22

A 240 S31254 - Detail

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

Mechanical properties of grade A 240 S31254 A 240/A 240M (2012)

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)
962 (≥) 861 (≥) 32 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical properties of grade A 240 S31254 A 240/A 240M (2012)

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
473 (≥) 127 (≥) 23 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 124
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
488 675 487

Equivalent Products

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