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F738 Class A1-50 S20300

Description

USA SAE F 738M (2002), F738 Class A1-50 S20300 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 A1-50 S20300
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel F738 Class A1-50 S20300 Austenite SAE USA Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs

Chemical composition(mass fraction)(wt.%) of the F738 Class A1-50 S20300

C Mn Si P S Cr Ni Mo Cu
≤0.08 5.00 -6.50 ≤1.00 ≤0.04 0.18 -0.35 16.00 -18.00 5.00 -6.00 ≤0.50 1.75 -2.25

Mechanical Properties of steel grade F738 Class A1-50 S20300

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)
729 (≥) 486 (≥) 34 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade F738 Class A1-50 S20300

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
14 - -     0.11 -  
777 857 - 41.3 424   -  
513 - 13 24.2   214 222

Heat Treatment of steel grade F738 Class A1-50 S20300

Heat treated : 1345°C - 1698°C

Technological Curves of steel grade F738 Class A1-50 S20300

Cross Reference Table (Equivalent Grade) of F738 Class A1-50 S20300

Grade Standard Country Application
S20300
S20300

Relevant standard of F738 Class A1-50 S20300

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

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