A 409 S30940 Stainless Steels to A 409/A 409M (2009)

A 409 S30940 - Specification & Application

  • A 409/A 409M (2009) - Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

Chemical composition(wt.%) of A 409 S30940 grade: to A 409/A 409M (2009)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 2.00
Si - 1.00
P - 0.045
S - 0.03
Cr 22.00 24.00
Ni 12.00 15.00
Mo - -

A 409 S30940 - Detail

Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

Mechanical properties of grade A 409 S30940 A 409/A 409M (2009)

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)
366 (≥) 138 (≥) 41 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade A 409 S30940 A 409/A 409M (2009)

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
445 (≥) 758 (≥) 23 24 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
325 531 139

Equivalent Products

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