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F738 Class A4-70 S31603

Description

USA SAE F 738M (2002), F738 Class A4-70 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 A4-70 S31603
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel F738 Class A4-70 S31603 Austenite SAE USA Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Chemical composition(mass fraction)(wt.%) of the F738 Class A4-70 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 A4-70 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)
451 (≥) 251 (≥) 42 14 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade F738 Class A4-70 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
11 - -     0.22 -  
425 466 - 23.3 144   -  
127 - 31 33.2   312 343

Heat Treatment of steel grade F738 Class A4-70 S31603

Heat treated : 1633°C - 1251°C

Technological Curves of steel grade F738 Class A4-70 S31603

Cross Reference Table (Equivalent Grade) of F738 Class A4-70 S31603

Relevant standard of F738 Class A4-70 S31603

F 738M (2002) Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs F-738M-(2002).pdf

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