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Marage 300

Description

USA UNS SAE AMS 6521C (1983), Marage 300 Specialsteel Steel Sheet, Strip, and Plate, Maraging 18.5Ni - 9.0Co - 4.9Mo - 0.65Ti - 0.10AI Consumable Electrode Melted, Solution Heat Treated and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: Marage 300
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel Marage 300 Precipitation-Hardening UNS USA Steel Sheet, Strip, and Plate, Maraging 18.5Ni - 9.0Co - 4.9Mo - 0.65Ti - 0.10AI Consumable Electrode Melted, Solution Heat Treated

Chemical composition(mass fraction)(wt.%) of the Marage 300

C Si Mn Ni Cr Al Cu Ti Fe Mo Co
≤0.03 ≤0.10 ≤0.10 ≤18.00 ≤ ≥ ≤0.10 ≤ ≥ ≤0.40 ≤ ≥ ≤5.00 ≤8.00

Mechanical Properties of steel 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)
379 (≥) 869 (≥) 12 41 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel 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
32 - -     0.31 -  
324 174 - 34.3 241   -  
668 - 44 22.2   143 324

Heat Treatment of steel grade Marage 300

Heat treated : 1272°C - 1118°C

Technological Curves of steel grade Marage 300

Relevant standard of Marage 300

SAE AMS 6521C (1983) Steel Sheet, Strip, and Plate, Maraging 18.5Ni - 9.0Co - 4.9Mo - 0.65Ti - 0.10AI Consumable Electrode Melted, Solution Heat Treated SAE-AMS-6521C-(1983).pdf

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