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B418 Type 2

Description

USA SAE B 418 (2012), B418 Type 2 Specialsteel Standard Specification for Cast and Wrought Galvanic Zinc Anodes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B418 Type 2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B418 Type 2 Precipitation-Hardening SAE USA Standard Specification for Cast and Wrought Galvanic Zinc Anodes

Chemical composition(mass fraction)(wt.%) of the B418 Type 2

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo W
≤0.20 ≤0.50 ≤1.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤12.50 ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤ ≥ ≤ ≥ ≤3.00

Mechanical Properties of steel grade B418 Type 2

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)
997 (≥) 346 (≥) 32 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade B418 Type 2

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
24 - -     0.44 -  
231 458 - 43.3 233   -  
821 - 42 34.2   322 134

Heat Treatment of steel grade B418 Type 2

Heat treated : 1257°C - 1262°C

Technological Curves of steel grade B418 Type 2

Cross Reference Table (Equivalent Grade) of B418 Type 2

Relevant standard of B418 Type 2

B 418 (2012) Standard Specification for Cast and Wrought Galvanic Zinc Anodes B-418-(2012).pdf

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