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ASTM A982 Grade A Class 1 – Quenched & Tempered, Stress-Relieved Martensitic Stainless Steel

Properties

General

Property	Temperature	Value	Comment
Density	23.0 °C	7.6 - 7.7 g/cm³	Typical for Martensitic Stainless Steel

Mechanical

Property	Temperature	Value	Comment
Charpy impact energy	23.0 °C	40 J
Elastic modulus	23.0 °C	220 GPa	Typical for Martensitic Stainless Steel
Elongation A50	23.0 °C	20 %
Hardness, Brinell	23.0 °C	255 [-]
Poisson's ratio	23.0 °C	0.3 [-]	Typical for Martensitic Stainless Steel
Reduction of area	23.0 °C	60 %
Shear modulus	23.0 °C	77 GPa	Typical for Martensitic Stainless Steel
Tensile strength	23.0 °C	690 MPa
Yield strength Rp0.2	23.0 °C	485 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	1E-5 - 1.5E-5 1/K	Typical for Martensitic Stainless Steel
Melting point		1370 - 1530 °C	Typical for Martensitic Stainless Steel
Specific heat capacity	23.0 °C	460 J/(kg·K)	Typical for Martensitic Stainless Steel
Thermal conductivity	23.0 °C	14 - 31 W/(m·K)	Typical for Martensitic Stainless Steel

Electrical

Property	Temperature	Value	Comment
Electrical resistivity	23.0 °C	6E-7 Ω·m	Typical for Martensitic Stainless Steel

Chemical properties

Property	Value
Carbon	0.15 %
Chromium	11.5 - 13 %
Manganese	1 %
Molybdenum	0.5 %
Nickel	0.75 %
Phosphorus	0.02 %
Silicon	0.5 %
Sulfur	0.015 %

ASTM A887 Grade A Type 304B7 Solution-Annealed Stainless Steel – Superior Corrosion Resistance & Mechanical Strength ASTM A707 Grade L2 Class 1 Steel – Properties, Treatments & Uses

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