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SA-688 S31600

Description

USA AMS SA-688/SA-688M, SA-688 S31600 Specialsteel Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-688 S31600
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-688 S31600 Austenite AMS USA Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the SA-688 S31600

C Si Mn P S Cr Ni Mo
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 16.0 -18.0 10.0 -14.0 2.00 -3.00

Mechanical Properties of steel grade SA-688 S31600

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)
882 (≥) 477 (≥) 21 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade SA-688 S31600

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
13 - -     0.31 -  
288 193 - 23.3 213   -  
386 - 44 32.2   143 113

Heat Treatment of steel grade SA-688 S31600

Heat treated : 1933°C - 1436°C

Technological Curves of steel grade SA-688 S31600

Cross Reference Table (Equivalent Grade) of SA-688 S31600

Relevant standard of SA-688 S31600

SA-688/SA-688M Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes SA-688-SA-688M.pdf

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