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443S65

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401S45 2S.111
#443S65

Description

UK B.S. BS 970-4, 443S65 Specialsteel Specification for wrought steels for mechanical and allied engineering purposes. Valve steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 443S65
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 443S65 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%) of the 443S65

C Si Mn P S Cr Ni Mo
0.75 -0.85 1.75 -2.25 0.30 -0.75 ≤0.040 ≤0.030 19.00 -21.00 1.20 -1.70 ≤ ≥

Mechanical Properties of steel grade 443S65

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)
547 (≥) 752 (≥) 21 43 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade 443S65

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 - -     0.23 -  
873 364 - 23.3 412   -  
457 - 33 41.2   413 241

Heat Treatment of steel grade 443S65

Heat treated : 1482°C - 1441°C

Technological Curves of steel grade 443S65

Relevant standard of 443S65

BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels BS-970-4.pdf
401S45 2S.111
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