K40712

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#K40712

Description

K40712 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: K40712

Category	Type	Steel Grade
Steel Grades	High Alloy	K40712
		K11597
		T12
		K11562
		T17
		K12047
		T21
		K31545
		T22
		K21590
		T23

Chemical composition(mass fraction)(wt.%) of the K40712

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.04-0.1	0.5	0.1-0.6	0.03	0.01	1.9-2.6
Mo	W	Cu	Nb	Ti	V	Ce
0.05-0.3	1.45-1.75		0.02-0.08		0.2-0.3
N	Co	Pb	B	Other
≤0.03			0.0005-0.006

Mechanical Properties of steel grade K40712

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)
429 (≥)	942 (≥)	34	43	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	241

Physical Properties of steel grade K40712

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
24	-	-			0.33	-
439	969	-	44.3	442		-
955	-	44	44.2			424	234

Heat Treatment of steel grade K40712

Heat treated : 1194°C - 1441°C

Technological Curves of steel grade K40712

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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Cold rolled/hot rolled

Wire rod

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Superalloy & High Temperature Alloy