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SA-268 S40500

Description

USA AMS SA-268/SA-268M, SA-268 S40500 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 S40500
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-268 S40500 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 S40500

C Mn Si P S Cr Ni Mo Al
≤0.08 ≤1.00 ≤1.00 ≤0.04 ≤0.03 11.00 -14.50 ≤ ≥ ≤ ≥ 0.10 -0.30

Mechanical Properties of steel grade SA-268 S40500

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)
273 (≥) 694 (≥) 42 41 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade SA-268 S40500

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
24 - -     0.21 -  
298 582 - 43.3 412   -  
945 - 34 31.2   244 414

Heat Treatment of steel grade SA-268 S40500

Heat treated : 1564°C - 1338°C

Technological Curves of steel grade SA-268 S40500

Cross Reference Table (Equivalent Grade) of SA-268 S40500

Relevant standard of SA-268 S40500

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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