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A 403 CR20CB

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PYROMET CTX-1 B 275 GR20A
#R-20

Description

USA SAE A 403/A 403M (2012), A 403 CR20CB Specialsteel Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 403 CR20CB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 403 CR20CB Precipitation-Hardening SAE USA Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Chemical composition(mass fraction)(wt.%) of the A 403 CR20CB

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe Nb
≤0.12 ≤0.30 ≤0.80 ≤19.00 ≤14.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤1.60

Mechanical Properties of steel grade A 403 CR20CB

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)
335 (≥) 817 (≥) 34 24 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade A 403 CR20CB

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 - -     0.23 -  
143 688 - 21.3 143   -  
262 - 43 23.2   344 124

Heat Treatment of steel grade A 403 CR20CB

Heat treated : 1128°C - 1167°C

Technological Curves of steel grade A 403 CR20CB

Cross Reference Table (Equivalent Grade) of A 403 CR20CB

Grade Standard Country Application
R-20
25Cr-20Ni
25Cr-20Ni+
29Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
29Cr-20Ni
29Cr-20Ni
29Cr-20Ni

Relevant standard of A 403 CR20CB

A 403/A 403M (2012) Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings A-403-A-403M-(2012).pdf
PYROMET CTX-1 B 275 GR20A
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