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A 959 Type 634

Favorite Datasheet
A 705 634 A 564 635
#634 #S35500

Description

USA SAE A 959 (2011), A 959 Type 634 Specialsteel Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 959 Type 634
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 959 Type 634 Precipitation-Hardening SAE USA Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Chemical composition(mass fraction)(wt.%) of the A 959 Type 634

C Mn Si P S Cr Ni Mo N
0.10 -0.15 0.50 -1.25 ≤0.50 ≤0.04 ≤0.03 15.00 -16.00 4.00 -5.00 2.50 -3.25 0.07 -0.13

Mechanical Properties of steel grade A 959 Type 634

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)
517 (≥) 694 (≥) 41 21 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade A 959 Type 634

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 - -     0.33 -  
277 117 - 14.3 442   -  
387 - 12 41.2   133 342

Heat Treatment of steel grade A 959 Type 634

Heat treated : 1471°C - 1329°C

Technological Curves of steel grade A 959 Type 634

Cross Reference Table (Equivalent Grade) of A 959 Type 634

Grade Standard Country Application
2.4634
1.6349
634
634
634
AMS 6342G
AMS 6348A
AMS 6349A
634
AM-355/634(S35500)
AISI 634
ASTM 634
AM-355(Type634)
S35500
S35500
S35500
S35500
UNS S35500
S35500

Relevant standard of A 959 Type 634

A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels A-959-(2011).pdf
A 705 634 A 564 635
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Jiangyou Longhai Special Steel Co.,Ltd.

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