440C Mod.

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#440C # # #Mod.

Description

440C Mod. Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 440C Mod.

Category	Type	Steel Grade
Steel Grades	Carbon Steel	440C Mod.
		1050
		1541
		1552
		4130
		4140
		4150
		5140
		5150
		6150
		440C

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

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
1.0-1.1	0.2-1	0.3-1	0.025	0.025	13-15	≤ 0.75
Mo	Al	Cu	Nb	Ti	V	Ce
3.75-4.25		≤0.5
N	Co	Pb	B	Other

Mechanical Properties of steel grade 440C Mod.

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
698 (≥)	512 (≥)	33	43	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	244

Physical Properties of steel grade 440C Mod.

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	-	-			0.31	-
832	855	-	13.3	442		-
467	-	22	42.2			434	241

Heat Treatment of steel grade 440C Mod.

Heat treated : 1363°C - 1412°C

Technological Curves of steel grade 440C Mod.

No Curve

Cross Reference Table (Equivalent Grade) of 440C Mod.

Grade	Standard	Country	Application
ASTM 440C	ASTM	USA	Martensitic special steel
SUS440C	JIS	Japan	Martensitic special steel
STS440C			martensitic steel
STS440C			martensitic steel
CNS 440C		China	CNS standard martensite stainless steel
440C			Australia Stainless steel
CNS 440C		China	China Taiwan Stainless steel
CNS 440C		China	China Taiwan Stainless steel
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel

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