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England B.S. 443S65 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 443S65 / 443 S 65
Category Grade Standard Region/Area Standard Content
Metals 443 S 65 BS 970-4 England Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%) of the 443 S 65

Element Min Max Similar
Cu - 0.5000 -
Ti - 0.1000 -
Nb - 0.2000 -
Mo - 0.5000 -
Si 1.7500 2.2500 -
S - 0.0300 -
P - 0.0400 -
Ni 1.2000 1.7000 -
Mn 0.3000 0.7500 -
Cr 19.0000 21.0000 -
C 0.7500 0.8500 -

Mechanical Properties of steel grade 443 S 65

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)
256 (≥) 893 (≥) 32 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade 443 S 65

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
21 - -     0.31 -  
212 594 - 41.3 421   -  
741 - 24 14.2   214 212

Heat Treatment of steel grade 443 S 65

Heat treated : 1329°C - 1745°C

Technological Curves of steel grade 443 S 65

Cross Reference Table (Equivalent Grade) of 443 S 65

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