4J45

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#4J45

Description

China GBT 4J45 expansionalloy and 4J45 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 4J45

Category	Type	Steel Grade	Standard	Country	Application
Steel Grades	Special Alloy	4J45	GBT	China	expansionalloy
		4J29
		4J32
		4J33
		4J34
		4J36
		4J38
		4J40
		4J42
		4J43
		4J44

Chemical composition(mass fraction)(wt.%) of the 4J45

C(％)	Si(％)	Mn(％)	P(％)	S(％)	Ni(％)	Al(%)	Fe(%)
0.05	≤0.30	≤0.80	0.020	0.020	44.5-45.5	≤0.1	Bal

Mechanical Properties of steel grade 4J45

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)
111 (≥)	312 (≥)	21	41	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	422

Physical Properties of steel grade 4J45

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
23	-	-			0.41	-
677	447	-	33.3	242		-
277	-	23	42.2			231	222

Heat Treatment of steel grade 4J45

Heat treated : 1944°C - 1559°C

Technological Curves of steel grade 4J45

No Curve

Cross Reference Table (Equivalent Grade) of 4J45

Grade	Standard	Country	Application
4J45	GBT	China	expansionalloy

Available Suppliers

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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