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420

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S41400 S42000
#420

Description

420 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 420
Category Type Steel Grade Standard Country Application
Steel GradesHigh Alloy 420
446
S44600
S44700
S44800
403
S40300
410
S41000
414
S41400

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

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
≥0.15 1 1 0.04 0.03 12-14  
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 420

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)
487 (≥) 654 (≥) 41 32 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade 420

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
33 - -     0.31 -  
232 158 - 43.3 131   -  
681 - 43 21.2   223 212

Heat Treatment of steel grade 420

Heat treated : 1648°C - 1494°C

Technological Curves of steel grade 420

Cross Reference Table (Equivalent Grade) of 420

Grade Standard Country Application
S42010 UNS USA Martensitic special steel
S42010 UNS USA Martensitic special steel
S42023 UNS USA Martensitic special steel
S42023 UNS USA Martensitic special steel
Type420FSe UNS USA Martensitic special steel
Type420FSe UNS USA Martensitic special steel
SUS420J1 JIS Japan Martensitic special steel
SUS420J2 JIS Japan Martensitic special steel
SUS420F JIS Japan Martensitic special steel
SUS420F2 JIS Japan Martensitic special steel
SUS420J2-CPS JIS Japan stainless steel
SUS420J1FB martensitic stainless steel
SUS420J2FB JIS Japan martensitic stainless steel
SUS420J1TKA JIS Japan ferritic stainless steel
SUS420J2TKA JIS Germany
420S37 austenitic special steel
420S45 austenitic special steel
STS420J1 martensitic steel
STS420J1 martensitic steel
STS420J2 martensitic steel
S41400 S42000
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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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