4J28

Favorite Datasheet

#4J28

Description

China GBT 4J28 expansionalloy and 4J28 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 4J28

Category	Type	Steel Grade	Standard	Country	Application
Steel Grades	Special Alloy	4J28	GBT	China	expansionalloy
		3J21
		3J22
		3J40
		3J53
		3J53P
		3J53Y
		3J58
		3J60
		3J63
		4J06

Chemical composition(mass fraction)(wt.%) of the 4J28

C(％)	Si(％)	Mn(％)	P(％)	S(％)	Cr(％)	Ni(％)	Fe(%)
0.12	≤0.70	≤1.00	0.020	0.020	27.0-29.0	≤0.50	Bal

Mechanical Properties of steel grade 4J28

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)
365 (≥)	225 (≥)	43	43	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	112

Physical Properties of steel grade 4J28

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	-	-			0.43	-
811	465	-	32.3	424		-
515	-	32	42.2			233	423

Heat Treatment of steel grade 4J28

Heat treated : 1555°C - 1527°C

Technological Curves of steel grade 4J28

No Curve

Cross Reference Table (Equivalent Grade) of 4J28

Grade	Standard	Country	Application
4J28	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

Do you supply this 4J28?
List your company on S&G now? Join
Non-paying users only

Stainless Steels

Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

Quality special steel

Superalloy & High Temperature Alloy