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AISI 440B

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UNS S44002 ASTM 440B
#AISI # #440B

Description

USA AISI AISI 440B Martensitic special steel and AISI 440B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: AISI 440B
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel AISI 440B AISI USA Martensitic special steel
0Cr18Ni9
00Cr19Ni10
0Cr19Ni10NbN
UNS S42800
AISI 431
ASTM 431
UNS S43100
AISI 440A
ASTM 440A
UNS S44002

Chemical composition(mass fraction)(wt.%) of the AISI 440B

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％)
0.75-0.95 Max 1.00 Max 1.00 Max 0.04 Max 0.03 16.0-18.0 Max 0.75

Mechanical Properties of steel grade AISI 440B

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)
871 (≥) 575 (≥) 32 44 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade AISI 440B

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
31 - -     0.33 -  
759 452 - 11.3 212   -  
451 - 11 22.2   132 233

Heat Treatment of steel grade AISI 440B

Heat treated : 1289°C - 1257°C

Technological Curves of steel grade AISI 440B

Cross Reference Table (Equivalent Grade) of AISI 440B

Grade Standard Country Application
AISI 431 AISI USA Martensitic special steel
AISI 440A AISI China Martensitic special steel
AISI 440B AISI USA Martensitic special steel
AISI 440F AISI USA Martensitic special steel
AISI 440F Se AISI USA Martensitic special steel
AISI 501 AISI USA Martensitic special steel
AISI 501A AISI USA Martensitic special steel
AISI 501B AISI USA Martensitic special steel
AISI 502 AISI USA Martensitic special steel
AISI 503 AISI USA Martensitic special steel
AISI 504 AISI USA Martensitic special steel
AISI S13800 USA precipitation hardening
AISI S15500 AISI USA precipitation hardening
AISI 632 AISI USA precipitation hardening
AISI 630 AISI USA precipitation hardening
AISI 635 AISI USA precipitation hardening
AISI 631 AISI USA precipitation hardening
AISI 633 AISI USA precipitation hardening
AISI 633 AISI USA precipitation hardening
AISI 634 AISI USA precipitation hardening
UNS S44002 ASTM 440B
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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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