A 240 S32550 Stainless Steels to A 240/A 240M (2013)

A 240 S32550 - Specification & Application

  • A 240/A 240M (2013) - 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 S32550 grade: to A 240/A 240M (2013)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.04
Mn - 1.50
Si - 1.00
P - 0.04
S - 0.03
Cr 24.00 27.00
Ni 4.50 6.50
Mo 2.90 3.90
Cu 1.50 2.50
N 0.10 0.25

A 240 S32550 - Detail

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

Mechanical properties of grade A 240 S32550 A 240/A 240M (2013)

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)
974 (≥) 798 (≥) 32 31 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical properties of grade A 240 S32550 A 240/A 240M (2013)

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
789 (≥) 935 (≥) 34 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 433
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
888 743 991
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