ASTM A176 S40945 Introduce

ASTM A176 S40945 is a chromium-molybdenum-tungsten alloy steel with exceptional weldability. It is a non-magnetic material that is ideal for a wide range of high-temperature applications. ASTM A176 S40945 has good thermal resistance and high strength to weight ratio. It has excellent formability and machinability, as well as a good resistance to stress corrosion cracking. It is ideal for a wide range of applications such as components and parts used in the automobile and heavy truck industries, as well as heat treat furnaces, pressure vessels, gas turbines, and industrial valves. ASTM A176 S40945 has also been used in military applications such as armor plating and missile components.

Smelting temperature:1791°C - 1197°C

Application:Stainless steel and heat-resistant chrome steel, sheet and strip

ASTM A176 S40945 Material Mechanical Properties

The mechanical properties of the ASTM A176 S40945 steel are as follows:

YieldRp0.2 ≤ 459 (MPa)
TeileRm≤ 377 (MPa)
ImpactKV/Ku24(J)
ElongationA42%
Reduction in cross section on fractureZ44%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)222

ASTM A176 S40945 Material Thermal Properties

The thermal performance parameters of the ASTM A176 S40945 steel are as follows:

Temperature (°C)14126776
Modulus of elasticity (GPa)-475-
Mean coefficient of thermal expaion ×10-6/(°C)--11
Thermal conductivity (W/m·°C)-33.344.2
Specific thermal capacity (J/kg·°C)-112-
Specific electrical resistivity (Ω mm²/m)0.32--
Deity (kg/dm³)--111
Poisson’s coefficient, ν--211