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S44020

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S44020 Type440F
#S44020

Description

USA UNS S44020 Martensitic special steel and S44020 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: S44020
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel S44020 UNS USA Martensitic special steel
TrimRite
S42023
S42023
Type420FSe
Type420FSe
Lapelloy
Lapelloy
S42300
S42300
S44020

Chemical composition(mass fraction)(wt.%) of the S44020

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) N(%)
0.95-1.20 1 1.25 1.25 Max 0.10-0.35 16.0-18.0 0.75 0.75

Mechanical Properties of steel grade S44020

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)
837 (≥) 837 (≥) 13 43 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade S44020

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 - -     0.34 -  
413 634 - 14.3 442   -  
756 - 33 13.2   314 322

Heat Treatment of steel grade S44020

Heat treated : 1287°C - 1277°C

Technological Curves of steel grade S44020

Cross Reference Table (Equivalent Grade) of S44020

Grade Standard Country Application
UNS S44020 UNS USA Martensitic special steel
S44020 UNS USA Martensitic special steel
S44020 UNS USA Martensitic special steel
S44020 Type440F
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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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