ASTM A579 Grade 71 Type 7, Maraging

ASTM A579 Grade 71 Type 7, Maraging general

Property Temperature Value Comment
Density 23.0 °C Density of 7.8 g/cm³ Typical for Steel

ASTM A579 Grade 71 Type 7, Maraging thermal

Property Value
Aluminium Aluminium of 0.05 - 0.15 %
Carbon Carbon of 0.03 %
Cobalt Cobalt of 8 - 9 %
Manganese Manganese of 0.1 %
Molybdenum Molybdenum of 3 - 3.5 %
Nickel Nickel of 17 - 19 %
Phosphorus Phosphorus of 0.01 %
Silicon Silicon of 0.1 %
Sulfur Sulfur of 0.01 %
Titanium Titanium of 0.15 - 0.25 %

ASTM A579 Grade 71 Type 7, Maraging mechanical

Property Temperature Value Comment
Charpy impact energy 23.0 °C Charpy impact energy of 45 J -
Elastic modulus 23.0 °C Elastic modulus of 190 - 210 GPa Typical for Steel
Elongation 23.0 °C Elongation of 12 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Steel
Reduction of area 23.0 °C Reduction of area of 55 % -
Tensile strength 23.0 °C Tensile strength of 1450 MPa -
Yield strength Rp0.2 23.0 °C Yield strength Rp0.2 of 1380 MPa -

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Henan Bebon Iron&Steel Co., Ltd.

Xicheng Science & Technology Building High-tech Development Zone, Zhengzhou, China

Tel: +86-371-86151827

E-Mail: [email protected]

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