439LT

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#439LT

Description

439LT High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 439LT

Category	Type	Steel Grade
Steel Grades	High Alloy	439LT
		409Cb
		409Ni
		418
		419
		422
		422M(C)
		422M
		430F Solenoid
		430FR Solenoid
		439 HP-10

Chemical composition(mass fraction)(wt.%) of the 439LT

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.020	1.00	1.00	0.040	0.030	17.0-19.0	≤0.50
Mo	Al	Cu	Nb	Ti	V	Ce
	≤0.15		0.02-0.95	0.20-0.40
N	Co	Pb	B	Other
≤0.020				Ti+Nb0.20+4(C+N)≥0.75

Mechanical Properties of steel grade 439LT

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)
855 (≥)	325 (≥)	23	43	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	113

Physical Properties of steel grade 439LT

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
34	-	-			0.11	-
252	332	-	31.3	141		-
418	-	12	14.2			123	424

Heat Treatment of steel grade 439LT

Heat treated : 1923°C - 1132°C

Technological Curves of steel grade 439LT

No Curve

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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