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Description

UK B.S. BS 1449-1-1.2, 2HR2 Specialsteel Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled steel plate, sheet and wide strip based on formability and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 2HR2
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 2HR2 B.S. UK Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled steel plate, sheet and wide strip based on formability

Chemical composition(mass fraction)(wt.%) of the 2HR2

C Si Mn P S Cr Ni Mo Co Ti Fe Al Cu B Bi Pb Ag Zr
≤0.13 ≤1.00 ≤1.00 ≤ ≥ ≤0.015 18.00 -21.00 ≤remaining ≤ ≥ 15.00 -21.00 2.00 -3.00 ≤1.50 1.00 -2.00 ≤0.20 ≤0.020 ≤0.0001 ≤0.002 ≤0.0005 ≤0.15

Mechanical Properties of steel grade 2HR2

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)
493 (≥) 116 (≥) 42 12 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 2HR2

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
31 - -     0.31 -  
514 977 - 44.3 244   -  
993 - 43 31.2   243 141

Heat Treatment of steel grade 2HR2

Heat treated : 1141°C - 1559°C

Technological Curves of steel grade 2HR2

Relevant standard of 2HR2

BS 1449-1-1.2 Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled steel plate, sheet and wide strip based on formability BS-1449-1-1-2.pdf

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