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Description

USA YB A 213/A 213M (2011) , A 240/A 240M (2012) , A 249/A 249M (2010) , A 276 (2010) , A 314 (2008) , A 473 (2009) , A 959 (2011) , SAE AMS-QQ-S-763B (1998) , SAE J 405 (1998) , 202 Specialsteel Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 202
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 202 Austenite YB USA Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

Chemical composition(mass fraction)(wt.%) of the 202

C Si Mn P S Cr Ni N
≤0.15 ≤1.00 7.50 -10.0 ≤0.06 ≤0.03 17.0 -19.0 4.00 -6.00 ≤0.25

Mechanical Properties of steel grade 202

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)
497 (≥) 169 (≥) 32 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade 202

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 - -     0.43 -  
951 914 - 11.3 312   -  
352 - 11 24.2   122 312

Heat Treatment of steel grade 202

Heat treated : 1467°C - 1286°C

Technological Curves of steel grade 202

Cross Reference Table (Equivalent Grade) of 202

Relevant standard of 202

A 213/A 213M (2011) Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes A-213-A-213M--(2011)-.pdf
A 240/A 240M (2012) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A-240-A-240M--(2012)--.pdf
A 249/A 249M (2010) Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes A-249-A-249M--(2010)--.pdf
A 276 (2010) Stainless Steel Bars and Shapes A-276--(2010)-.pdf
A 314 (2008) Stainless Steel Billets and Bars for Forging A-314--(2008)-.pdf
A 473 (2009) Stainless Steel Forgings A-473--(2009)-.pdf
A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels A-959--(2011)-.pdf
SAE AMS-QQ-S-763B (1998) Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings SAE-AMS-QQ-S-763B--(1998)--.pdf
SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels SAE-J-405--(1998)-.pdf

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