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F 837 Class A1-70 S30500

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F 837 Class A1-55 S30500 F738 Class A1-50 S30500
#305 #S30500

Description

USA SAE F 837M (2002), F 837 Class A1-70 S30500 Specialsteel Standard Specification for Stainless Steel Socket Head Cap Screws (Metric) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: F 837 Class A1-70 S30500
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel F 837 Class A1-70 S30500 Austenite SAE USA Standard Specification for Stainless Steel Socket Head Cap Screws (Metric)

Chemical composition(mass fraction)(wt.%) of the F 837 Class A1-70 S30500

C Si Mn P S Cr Ni
≤0.12 ≤1.00 ≤2.00 ≤0.045 ≤0.030 17.0 -19.0 10.5 -13.0

Mechanical Properties of steel grade F 837 Class A1-70 S30500

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)
265 (≥) 714 (≥) 23 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade F 837 Class A1-70 S30500

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
31 - -     0.31 -  
358 121 - 34.3 314   -  
268 - 42 32.2   441 244

Heat Treatment of steel grade F 837 Class A1-70 S30500

Heat treated : 1139°C - 1269°C

Technological Curves of steel grade F 837 Class A1-70 S30500

Cross Reference Table (Equivalent Grade) of F 837 Class A1-70 S30500

Grade Standard Country Application
1.4305
1.4305
1.2305
305
S30500
S30500
305
TP305
S30500
TP305
S30500
MT305
MT-305
305
S30500
AMS 6305A
UNS T72305
UNS W50305
UNS S30556
UNS K30560

Relevant standard of F 837 Class A1-70 S30500

F 837M (2002) Standard Specification for Stainless Steel Socket Head Cap Screws (Metric) F-837M--(2002).pdf
F 837 Class A1-55 S30500 F738 Class A1-50 S30500
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Jiangyou Longhai Special Steel Co.,Ltd.

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