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A 646 Grade Marage 300

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Marage 250 Marage 300
#Marage-300

Description

USA SAE A 646/A 646M (2011), A 646 Grade Marage 300 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 Marage 300
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 646 Grade Marage 300 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 Marage 300

C Si Mn Ni Cr Al Cu Ti Fe Mo Co
≤0.03 ≤0.10 ≤0.10 ≤18.50 ≤ ≥ ≤0.10 ≤ ≥ ≤0.60 ≤ ≥ ≤5.00 ≤9.00

Mechanical Properties of steel grade A 646 Grade Marage 300

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)
973 (≥) 899 (≥) 41 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade A 646 Grade Marage 300

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
21 - -     0.34 -  
434 125 - 21.3 123   -  
743 - 22 21.2   413 213

Heat Treatment of steel grade A 646 Grade Marage 300

Heat treated : 1157°C - 1761°C

Technological Curves of steel grade A 646 Grade Marage 300

Relevant standard of A 646 Grade Marage 300

A 646/A 646M (2011) Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings A-646-A-646M-(2011).pdf
Marage 250 Marage 300
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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