K12249

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#22-4-9

Description

USA AISI K12249 Specialsteel Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: K12249

Category	Class	Grade	Type	Standard	Country	Application
Steel Grades	Specialsteel	K12249	Precipitation-Hardening	AISI	USA	Alloy Steel

Chemical composition(mass fraction)(wt.%) of the K12249

C	Si	Mn	P	S	Ni	Cr	Al	Cu	Ti	Fe	N	Mo
≤0.60	≤ ≥	7.00 -10.00	≤ ≥	≤ ≥	3.50 -5.00	≤ ≥	≤ ≥	≤ ≥	≤ ≥	≤ ≥	0.30 -0.50	≤ ≥

Mechanical Properties of steel grade K12249

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)
742 (≥)	928 (≥)	33	31	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	114

Physical Properties of steel grade K12249

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
42	-	-			0.11	-
143	864	-	33.3	231		-
999	-	14	31.2			232	242

Heat Treatment of steel grade K12249

Heat treated : 1661°C - 1111°C

Technological Curves of steel grade K12249

No Curve

Cross Reference Table (Equivalent Grade) of K12249

Grade	Standard	Country	Application
22-4-9

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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