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SA-268 S40800

Description

USA AMS SA-268/SA-268M, SA-268 S40800 Specialsteel Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-268 S40800
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-268 S40800 Ferrite AMS USA Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical composition(mass fraction)(wt.%) of the SA-268 S40800

C Mn Si P S Cr Ni Mo
≤0.08 ≤1.00 ≤1.00 ≤0.045 ≤0.045 11.50 -13.00 ≤0.08 ≤ ≥

Mechanical Properties of steel grade SA-268 S40800

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
922 (≥) 876 (≥) 43 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade SA-268 S40800

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
21 - -     0.34 -  
399 793 - 23.3 433   -  
525 - 11 22.2   132 344

Heat Treatment of steel grade SA-268 S40800

Heat treated : 1926°C - 1617°C

Technological Curves of steel grade SA-268 S40800

Cross Reference Table (Equivalent Grade) of SA-268 S40800

Grade Standard Country Application
S40800
S40800

Relevant standard of SA-268 S40800

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

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