SAE J775 Grade HEV-7

Equivalent material: AISI HEV-7, UNS S66286, DIN 1.4980, DIN X5NiCrTi26-15, DIN X6NiCrTiMoVB25-15-2, AFNOR X6NiCrTiMoVB25-15-2, BS X6NiCrTiMoVB25-15-2, AISI 660, SAE 660, JIS SUS616, JIS SUH660, EN X6NiCrTiMoVB25-15-2, EN 1.4980, ISO X6NiCrTiMoVB25-15-2, ISO 4606-661-86-X, ISO 4980-662-86-X, ISO PM42J, ASTM Grade 660

SAE J775 Grade HEV-7 general

Property Temperature Value
Density 23.0 °C Density of 7.91 g/cm³

SAE J775 Grade HEV-7 thermal

Property Temperature Value Comment
Coefficient of thermal expansion 760.0 °C Coefficient of thermal expansion of 1.5E-5 1/K The mentioned value is between 20°C and the mentioned temperature

SAE J775 Grade HEV-7 chemical

Property Value
Aluminium Aluminium of 0.35 %
Boron Boron of 0.001 - 0.01 %
Carbon Carbon of 0.08 %
Chromium Chromium of 13.5 - 16 %
Iron Iron of 49.14 - 59.5 %
Manganese Manganese of 2 %
Molybdenum Molybdenum of 1 - 1.5 %
Nickel Nickel of 24 - 27 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.03 %
Titanium Titanium of 1.9 %
Vanadium Vanadium of 0.1 - 0.5 %

SAE J775 Grade HEV-7 mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 190 - 210 GPa Typical for Steel
Hardness, Brinell 760.0 °C Hardness, Brinell of 120 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.3 [-] Typical for Steel
Reduction of area 20.0 °C Reduction of area of 49 % -
- 650.0 °C Reduction of area of 14 % -
- 760.0 °C Reduction of area of 23 % -
Tensile strength 20.0 °C Tensile strength of 1030 MPa -
- 650.0 °C Tensile strength of 720 MPa -
- 760.0 °C Tensile strength of 440 MPa -
Yield strength 20.0 °C Yield strength of 700 MPa -
- 650.0 °C Yield strength of 610 MPa -
- 760.0 °C Yield strength of 340 MPa -

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