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EU EN 19MnB4 steels and nickel alloys for fasteners with specified elevated and/or low temperature properties and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 19MnB4 / 19 MnB 4
Category Grade Standard Region/Area Standard Content
Metals 19 MnB 4 EN 10269 EU steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Chemical composition(mass fraction)(wt.%) of the 19 MnB 4

Element Min Max Similar
B 0.0008 0.0050 -
P - 0.0350 -
S - 0.0350 -
Mn 0.8000 1.1500 -
Si - 0.4000 -
C 0.1700 0.2400 -

Mechanical Properties of steel grade 19 MnB 4

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)
396 (≥) 178 (≥) 24 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 19 MnB 4

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
11 - -     0.11 -  
311 873 - 14.3 222   -  
449 - 32 12.2   112 341

Heat Treatment of steel grade 19 MnB 4

Heat treated : 1445°C - 1736°C

Technological Curves of steel grade 19 MnB 4

Cross Reference Table (Equivalent Grade) of 19 MnB 4

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