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England B.S. 735H51 Specification for wrought steels for mechanical and allied engineering purposes. Requirements for steels for the manufacture of hot formed springs and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 735H51 / 735 H 51
Category Grade Standard Region/Area Standard Content
Metals 735 H 51 BS 970-2 England Specification for wrought steels for mechanical and allied engineering purposes. Requirements for steels for the manufacture of hot formed springs

Chemical composition(mass fraction)(wt.%) of the 735 H 51

Element Min Max Similar

Mechanical Properties of steel grade 735 H 51

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)
413 (≥) 551 (≥) 23 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade 735 H 51

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
23 - -     0.23 -  
364 336 - 41.3 414   -  
946 - 14 32.2   244 444

Heat Treatment of steel grade 735 H 51

Heat treated : 1851°C - 1454°C

Technological Curves of steel grade 735 H 51

Cross Reference Table (Equivalent Grade) of 735 H 51

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