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F738 Class A4-50 S31603

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F 837 Class A1-70 S31603 F738 Class A4-70 S31603
#316L #S31603

Description

USA SAE F 738M (2002), F738 Class A4-50 S31603 Specialsteel Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: F738 Class A4-50 S31603
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel F738 Class A4-50 S31603 Austenite SAE USA Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Chemical composition(mass fraction)(wt.%) of the F738 Class A4-50 S31603

C Si Mn P S Cr Ni Mo N
≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.035 16.0 -18.0 10.0 -14.0 2.00 -3.00 ≤0.10

Mechanical Properties of steel grade F738 Class A4-50 S31603

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)
261 (≥) 252 (≥) 42 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade F738 Class A4-50 S31603

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
41 - -     0.23 -  
617 654 - 32.3 421   -  
319 - 21 12.2   333 124

Heat Treatment of steel grade F738 Class A4-50 S31603

Heat treated : 1366°C - 1498°C

Technological Curves of steel grade F738 Class A4-50 S31603

Cross Reference Table (Equivalent Grade) of F738 Class A4-50 S31603

Grade Standard Country Application
316L
316LN
316LHN
316L
316L
316LN
TP316L
TP316LN
TP316L
TP316LN
TP316L
TP316LN
TP316L
TP316LN
TP316L
MT316L
MT-316L
TP316L
TP316LN
316L

Relevant standard of F738 Class A4-50 S31603

F 738M (2002) Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs F-738M-(2002).pdf
F 837 Class A1-70 S31603 F738 Class A4-70 S31603
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Jiangyou Longhai Special Steel Co.,Ltd.

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