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Description

UK B.S. BS 1449-1-1.4, HR50F45 Specialsteel Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HR50F45
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HR50F45 B.S. UK Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength

Chemical composition(mass fraction)(wt.%) of the HR50F45

C Si Mn P S Cr Ni Mo Co Ti Fe Al Cu B Bi Pb Ag
0.08 -0.15 ≤1.00 ≤1.00 ≤ ≥ ≤0.020 18.00 -21.00 ≤remaining ≤ ≥ ≤5.00 0.20 -0.60 ≤5.00 ≤ ≥ ≤0.50 ≤ ≥ ≤ ≥ ≤0.0050 ≤ ≥

Mechanical Properties of steel grade HR50F45

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)
235 (≥) 577 (≥) 14 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade HR50F45

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
32 - -     0.23 -  
721 875 - 34.3 322   -  
337 - 11 12.2   314 114

Heat Treatment of steel grade HR50F45

Heat treated : 1577°C - 1138°C

Technological Curves of steel grade HR50F45

Relevant standard of HR50F45

BS 1449-1-1.4 Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength BS-1449-1-1-4.pdf

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