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A 249 S31725

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A 240 S31725 A 269 S31725
#S31725

Description

USA SAE A 249/A 249M (2010, A 249 S31725 Specialsteel Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 249 S31725
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 249 S31725 Austenite SAE USA Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the A 249 S31725

C Mn Si P S Cr Ni Mo Cu N
≤0.03 ≤2.00 ≤0.75 ≤0.045 ≤0.03 18.00 -20.00 13.50 -17.50 4.00 -5.00 ≤0.75 ≤0.10

Mechanical Properties of steel grade A 249 S31725

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)
941 (≥) 419 (≥) 31 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade A 249 S31725

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 - -     0.31 -  
237 364 - 42.3 132   -  
176 - 23 24.2   341 214

Heat Treatment of steel grade A 249 S31725

Heat treated : 1311°C - 1783°C

Technological Curves of steel grade A 249 S31725

Cross Reference Table (Equivalent Grade) of A 249 S31725

Grade Standard Country Application
S31725
S31725
S31725
S31725
S31725
S31725
S31725

Relevant standard of A 249 S31725

A 249/A 249M (2010 Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes A-249-A-249M-(2010.pdf
A 240 S31725 A 269 S31725
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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