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349S54

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349S52 352S52
#349S54

Description

UK B.S. BS 970-4, 349S54 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: 349S54
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 349S54 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%) of the 349S54

C Si Mn P S Cr Ni Mo N C+N
0.48 -0.58 ≤0.25 8.00 -10.00 ≤0.040 0.035 -0.080 20.00 -22.00 3.25 -4.50 ≤ ≥ 0.38 -0.50 0.90 - ≥

Mechanical Properties of steel grade 349S54

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)
675 (≥) 441 (≥) 33 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade 349S54

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 - -     0.33 -  
492 851 - 13.3 224   -  
729 - 32 21.2   321 233

Heat Treatment of steel grade 349S54

Heat treated : 1311°C - 1769°C

Technological Curves of steel grade 349S54

Relevant standard of 349S54

BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels BS-970-4.pdf
349S52 352S52
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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