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A 646 Grade Nit. 135

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Ni Span C902 Nivco-10
#Nit-135

Description

USA SAE A 646/A 646M (2011), A 646 Grade Nit. 135 Specialsteel Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 646 Grade Nit. 135
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 646 Grade Nit. 135 Precipitation-Hardening SAE USA Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings

Chemical composition(mass fraction)(wt.%) of the A 646 Grade Nit. 135

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe
0.38 -0.43 0.20 -0.40 0.50 -0.70 ≤ ≥ 0.30 -0.40 ≤ ≥ ≤ ≥ 0.95 -1.30 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥

Mechanical Properties of steel grade A 646 Grade Nit. 135

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)
675 (≥) 131 (≥) 41 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade A 646 Grade Nit. 135

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
12 - -     0.23 -  
297 256 - 14.3 214   -  
318 - 11 44.2   213 143

Heat Treatment of steel grade A 646 Grade Nit. 135

Heat treated : 1689°C - 1533°C

Technological Curves of steel grade A 646 Grade Nit. 135

Relevant standard of A 646 Grade Nit. 135

A 646/A 646M (2011) Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings A-646-A-646M-(2011).pdf
Ni Span C902 Nivco-10
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