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SA-688 S32654

Description

USA AMS SA-688/SA-688M, SA-688 S32654 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 S32654
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-688 S32654 Austenite AMS USA Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the SA-688 S32654

C Mn Si P S Cr Ni Cu N
≤0.02 2.00 -4.00 ≤0.50 ≤0.03 ≤0.005 24.00 -25.00 7.00 -8.00 0.30 -0.60 0.45 -0.55

Mechanical Properties of steel grade SA-688 S32654

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)
894 (≥) 961 (≥) 14 44 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade SA-688 S32654

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 - -     0.42 -  
152 655 - 42.3 212   -  
681 - 31 14.2   233 442

Heat Treatment of steel grade SA-688 S32654

Heat treated : 1288°C - 1113°C

Technological Curves of steel grade SA-688 S32654

Cross Reference Table (Equivalent Grade) of SA-688 S32654

Grade Standard Country Application
S32654
S32654
S32654
S32654
S32654

Relevant standard of SA-688 S32654

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

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