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SA-688 S30403

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SA-666 S30403 SA-688 S30403
#S30403

Description

USA AMS SA-688/SA-688M , SA-688 S30403 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 S30403
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-688 S30403 Austenite AMS USA Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the SA-688 S30403

C Si Mn P S Cr Ni
≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18.0 -20.0 8.00 -12.0

Mechanical Properties of steel grade SA-688 S30403

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)
776 (≥) 159 (≥) 11 12 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade SA-688 S30403

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
43 - -     0.24 -  
321 147 - 34.3 232   -  
691 - 44 12.2   442 141

Heat Treatment of steel grade SA-688 S30403

Heat treated : 1247°C - 1915°C

Technological Curves of steel grade SA-688 S30403

Cross Reference Table (Equivalent Grade) of SA-688 S30403

Grade Standard Country Application
S30403
S30403
S30403
S30403
S30403
S30403
S30403
S30403
S30403

Relevant standard of SA-688 S30403

SA-688/SA-688M Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes SA-688-SA-688M-.pdf
SA-666 S30403 SA-688 S30403
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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