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2Cr25Ni20

Description

China GB GB 13296 (2007) , GB 4238 (1992) , GB/T 1221 (1992), JB/T 6398 (2006) , 2Cr25Ni20 Specialsteel Seamless stainless steel tubes for boiler and heat exchanger and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 2Cr25Ni20
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 2Cr25Ni20 Austenite GB China Seamless stainless steel tubes for boiler and heat exchanger

Chemical composition(mass fraction)(wt.%) of the 2Cr25Ni20

C Si Mn P S Ni Cr
≤0.25 ≤1.50 ≤2.00 ≤0.35 ≤0.03 19.00 -22.00 24.00 -26.00

Mechanical Properties of steel grade 2Cr25Ni20

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)
712 (≥) 144 (≥) 31 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 2Cr25Ni20

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
44 - -     0.24 -  
568 688 - 42.3 112   -  
819 - 41 34.2   233 434

Heat Treatment of steel grade 2Cr25Ni20

Heat treated : 1211°C - 1115°C

Technological Curves of steel grade 2Cr25Ni20

Relevant standard of 2Cr25Ni20

GB 13296 (2007) Seamless stainless steel tubes for boiler and heat exchanger GB-13296--(2007)--.pdf
GB 4238 (1992) Heat-resisting steel sheets and plates GB-4238--(1992)-.pdf
GB/T 1221 (1992) Heat-resisting steel bars GB-T-1221--(1992).pdf
JB/T 6398 (2006) Heavy stainless acid resistant and heat resistant steel forgings JB-T-6398--(2006)--.pdf

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