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SA-688 S24000

Description

USA AMS SA-688/SA-688M , SA-688 S24000 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 S24000
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-688 S24000 Austenite AMS USA Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the SA-688 S24000

C Si Mn P S Cr Ni N
≤0.08 ≤1.00 11.5 -14.5 ≤0.06 ≤0.03 17.0 -19.0 2.25 -3.75 0.20 -0.40

Mechanical Properties of steel grade SA-688 S24000

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)
123 (≥) 886 (≥) 22 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade SA-688 S24000

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
22 - -     0.14 -  
612 117 - 33.3 113   -  
579 - 11 41.2   411 311

Heat Treatment of steel grade SA-688 S24000

Heat treated : 1646°C - 1835°C

Technological Curves of steel grade SA-688 S24000

Cross Reference Table (Equivalent Grade) of SA-688 S24000

Relevant standard of SA-688 S24000

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

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