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420S29

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416S41 420S37
#420S29

Description

UK B.S. BS 1503, BS 1554, BS 5770-4, BS 970-1, BS 970-3, 420S29 Specialsteel Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 420S29
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 420S29 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Chemical composition(mass fraction)(wt.%) of the 420S29

C Si Mn P S Cr Mo Ni
0.14 -0.20 ≤1.00 ≤1.00 ≤0.04 ≤0.03 11.50 -13.50 ≤ ≥ ≤1.00

Mechanical Properties of steel grade 420S29

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)
553 (≥) 973 (≥) 44 21 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade 420S29

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
42 - -     0.12 -  
321 579 - 21.3 322   -  
651 - 23 31.2   222 233

Heat Treatment of steel grade 420S29

Heat treated : 1289°C - 1625°C

Technological Curves of steel grade 420S29

Relevant standard of 420S29

BS 1503 Specification for steel forgings for pressure purposes BS-1503.pdf
BS 1554 Specification for stainless and heat-resisting steel round wire BS-1554.pdf
BS 5770-4 Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel BS-5770-4.pdf
BS 970-1 Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels BS-970-1.pdf
BS 970-3 Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes BS-970-3.pdf
416S41 420S37
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Jiangyou Longhai Special Steel Co.,Ltd.
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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