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SA-688 TP 304L

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SA-666 304L SA-813 TP304L
#304L

Description

USA AMS SA-688/SA-688M , SA-688 TP 304L 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 TP 304L
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-688 TP 304L Austenite AMS USA Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the SA-688 TP 304L

C Si Mn P S Cr Ni
≤0.030 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18.00 -20.00 8.00 -13.00

Mechanical Properties of steel grade SA-688 TP 304L

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)
121 (≥) 595 (≥) 13 21 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade SA-688 TP 304L

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
34 - -     0.23 -  
876 329 - 41.3 124   -  
631 - 13 34.2   132 322

Heat Treatment of steel grade SA-688 TP 304L

Heat treated : 1123°C - 1624°C

Technological Curves of steel grade SA-688 TP 304L

Cross Reference Table (Equivalent Grade) of SA-688 TP 304L

Grade Standard Country Application
304L
304LN
304LHN
AL 304L
304L
304LN
TP304L
TP304LN
TP304L
TP304LN
TP304L
TP304LN
TP304L
TP304LN
TP304L
MT304L
MT-304L
TP304L
TP304LN
304L

Relevant standard of SA-688 TP 304L

SA-688/SA-688M Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes SA-688-SA-688M-.pdf
SA-666 304L SA-813 TP304L
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Jiangyou Longhai Special Steel Co.,Ltd.
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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