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LR Type 240

England Lloyds LRType240 Carbon-manganese steel forgings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LRType240 / LR Type 240
Category Grade Standard Region/Area Standard Content
Metals LR Type 240 -- England Carbon-manganese steel forgings

Chemical composition(mass fraction)(wt.%) of the LR Type 240

Element Min Max Similar

Mechanical Properties of steel grade LR Type 240

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)
515 (≥) 382 (≥) 31 41 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade LR Type 240

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 - -     0.32 -  
616 433 - 32.3 132   -  
622 - 42 42.2   241 322

Heat Treatment of steel grade LR Type 240

Heat treated : 1535°C - 1562°C

Technological Curves of steel grade LR Type 240

Cross Reference Table (Equivalent Grade) of LR Type 240

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