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A 268 S44400

Description

USA SAE A 268/A 268M (2010), A 268 S44400 Specialsteel 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: A 268 S44400
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 268 S44400 Ferrite SAE USA Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical composition(mass fraction)(wt.%) of the A 268 S44400

C Mn Si P S Cr Ni Mo N
≤0.025 ≤1.00 ≤1.00 ≤0.04 ≤0.03 17.50 -19.50 ≤1.00 1.75 -2.50 ≤0.035

Mechanical Properties of steel grade A 268 S44400

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)
974 (≥) 424 (≥) 33 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade A 268 S44400

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 -  
472 267 - 14.3 343   -  
228 - 23 22.2   411 144

Heat Treatment of steel grade A 268 S44400

Heat treated : 1819°C - 1965°C

Technological Curves of steel grade A 268 S44400

Cross Reference Table (Equivalent Grade) of A 268 S44400

Relevant standard of A 268 S44400

A 268/A 268M (2010) Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service A-268-A-268M-(2010).pdf

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