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Type440F

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Type440F Type440FSe
#Type440F

Description

USA UNS Type440F Martensitic special steel and Type440F Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: Type440F
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel Type440F UNS USA Martensitic special steel
S42023
Type420FSe
Type420FSe
Lapelloy
Lapelloy
S42300
S42300
S44020
S44020
Type440F

Chemical composition(mass fraction)(wt.%) of the Type440F

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 Type440F

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)
152 (≥) 332 (≥) 44 12 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade Type440F

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
24 - -     0.23 -  
248 986 - 11.3 213   -  
312 - 34 31.2   131 313

Heat Treatment of steel grade Type440F

Heat treated : 1546°C - 1257°C

Technological Curves of steel grade Type440F

Cross Reference Table (Equivalent Grade) of Type440F

Grade Standard Country Application
Type440F UNS USA Martensitic special steel
Type440F UNS USA Martensitic special steel
Type440F Type440FSe
Available Suppliers
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...

Rfq.: sales@longhaisteel.com
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