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ASTM 440C

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UNS S44003 UNS S44004
#ASTM # #440C

Description

USA ASTM ASTM 440C Martensitic special steel and ASTM 440C Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: ASTM 440C
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel ASTM 440C ASTM USA Martensitic special steel
UNS S42800
AISI 431
ASTM 431
UNS S43100
AISI 440A
ASTM 440A
UNS S44002
AISI 440B
ASTM 440B
UNS S44003

Chemical composition(mass fraction)(wt.%) of the ASTM 440C

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％)
0.95-1.20 Max 1.00 Max 1.00 Max 0.04 Max 0.03 16.0-18.0 Max 0.75

Mechanical Properties of steel grade ASTM 440C

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)
196 (≥) 253 (≥) 42 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade ASTM 440C

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
22 - -     0.14 -  
294 194 - 43.3 144   -  
827 - 32 33.2   341 332

Heat Treatment of steel grade ASTM 440C

Heat treated : 1616°C - 1888°C

Technological Curves of steel grade ASTM 440C

Cross Reference Table (Equivalent Grade) of ASTM 440C

Grade Standard Country Application
ASTM 1030 ASTM USA General use carbon steel bar
ASTM 1005 ASTM USA General use carbon steel bar
ASTM 1006 ASTM USA General use carbon steel bar
ASTM 1008 ASTM USA General use carbon steel bar
ASTM 1010 ASTM USA General use carbon steel bar
ASTM 1013 ASTM USA General use carbon steel bar
ASTM 1015 ASTM USA General use carbon steel bar
ASTM 1016 ASTM USA General use carbon steel bar
ASTM 1017 ASTM USA General use carbon steel bar
ASTM 1018 ASTM USA General use carbon steel bar
ASTM 1019 ASTM USA General use carbon steel bar
ASTM 1020 ASTM USA General use carbon steel bar
ASTM 1021 ASTM USA General use carbon steel bar
ASTM W1-A ASTM USA Carbon tool steel
ASTM A182 F55 ASTM USA Super Duplex
ASTM 431 ASTM USA Martensitic special steel
ASTM 440A ASTM USA Martensitic special steel
ASTM 440B ASTM USA Martensitic special steel
ASTM 440C ASTM USA Martensitic special steel
ASTM 501 ASTM USA Martensitic special steel
UNS S44003 UNS S44004
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