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A 688 S30403

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A 666 S30403 A 778 S30403
#S30403

Description

USA SAE A 688/A 688M (2012) , A 688 S30403 Specialsteel Welded Austenitic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 688 S30403
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 688 S30403 Austenite SAE USA Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the A 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 A 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)
262 (≥) 177 (≥) 31 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade A 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
21 - -     0.14 -  
656 428 - 41.3 414   -  
422 - 44 31.2   433 314

Heat Treatment of steel grade A 688 S30403

Heat treated : 1916°C - 1684°C

Technological Curves of steel grade A 688 S30403

Cross Reference Table (Equivalent Grade) of A 688 S30403

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

Relevant standard of A 688 S30403

A 688/A 688M (2012) Welded Austenitic Stainless Steel Feedwater Heater Tubes A-688-A-688M--(2012)-.pdf
A 666 S30403 A 778 S30403
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