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A 688 Grade TP 304N

Description

USA SAE A 688/A 688M (2012) , A 688 Grade TP 304N Specialsteel Welded Austenitic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 688 Grade TP 304N
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 688 Grade TP 304N Austenite SAE USA Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the A 688 Grade TP 304N

C Si Mn P S Cr Ni N
≤0.08 ≤0.75 ≤2.00 ≤0.045 ≤0.03 18.0 -20.0 8.00 -10.5 0.10 -0.16

Mechanical Properties of steel grade A 688 Grade TP 304N

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)
852 (≥) 674 (≥) 42 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade A 688 Grade TP 304N

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 - -     0.41 -  
434 674 - 32.3 343   -  
791 - 22 12.2   331 213

Heat Treatment of steel grade A 688 Grade TP 304N

Heat treated : 1278°C - 1997°C

Technological Curves of steel grade A 688 Grade TP 304N

Cross Reference Table (Equivalent Grade) of A 688 Grade TP 304N

Relevant standard of A 688 Grade TP 304N

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

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