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Brazil NBR AF-Mn-A Steel castings of austenitic manganese - Specification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AF-Mn-A / AF-Mn-A
Category Grade Standard Region/Area Standard Content
Metals AF-Mn-A ABNT NBR 7243 Brazil Steel castings of austenitic manganese - Specification

Chemical composition(mass fraction)(wt.%) of the AF-Mn-A

Element Min Max Similar
C 1.0500 1.3500 -
Mn 11.0000 - -
P - 0.1000 -
Si - 1.0000 -

Mechanical Properties of steel grade AF-Mn-A

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)
876 (≥) 257 (≥) 31 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade AF-Mn-A

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
22 - -     0.42 -  
181 415 - 22.3 343   -  
875 - 34 21.2   422 131

Heat Treatment of steel grade AF-Mn-A

Heat treated : 1848°C - 1637°C

Technological Curves of steel grade AF-Mn-A

Cross Reference Table (Equivalent Grade) of AF-Mn-A

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