SA-268 TP S40900 Stainless Steels to SA-268/SA-268M

SA-268 TP S40900 - Specification & Application

  • SA-268/SA-268M - Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical composition(wt.%) of SA-268 TP S40900 grade: to SA-268/SA-268M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 1.00
Si - 1.00
P - 0.045
S - 0.045
Cr 10.50 11.7
Ni - 0.50
Mo - -

SA-268 TP S40900 - Detail

Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Mechanical properties of grade SA-268 TP S40900 SA-268/SA-268M

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)
558 (≥) 292 (≥) 13 44 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical properties of grade SA-268 TP S40900 SA-268/SA-268M

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
362 (≥) 744 (≥) 31 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 233
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
772 414 849

Equivalent Products

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