SA-312 Grade TP 304L Stainless Steels to SA-312/SA-312M

SA-312 Grade TP 304L - Specification & Application

  • SA-312/SA-312M - Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Chemical composition(wt.%) of SA-312 Grade TP 304L grade: to SA-312/SA-312M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.030
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 18.00 20.00
Ni 8.00 13.00

SA-312 Grade TP 304L - Detail

Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Mechanical properties of grade SA-312 Grade TP 304L SA-312/SA-312M

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)
711 (≥) 761 (≥) 22 43 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade SA-312 Grade TP 304L SA-312/SA-312M

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
147 (≥) 758 (≥) 32 33 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
516 558 211
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