Ovako 34CrNiMo6 356Q Steel, +QT

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Ovako 34CrNiMo6 356Q Steel, +QT
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel
Material Notes:	General Information: 34CrNiMo6 is a quenching and tempering steel with high strength, high toughness and good hardenability. Used for large axles, machine components, tools and high strength fasteners. The steel can be induction hardened and it is weldable under certain conditions. Through hardenability to appr. 100 mm diameter bar with oil quenching. 356D - Standard steel variant 356Q - IQ (isotropic quality) variant. 6499 - low sulphur variant of 34CrNiMo6 6507 - M-steel variant of 34CrNiMo6 IQ-SteelIQ-Steel® is an isotropic quality ultra clean steel optimized for high fatigue strength under multi axial loading. Information provided by Ovako
Key Words:	34CrNiMo6M, 356, 356D, SS2541, MoCN315, MoCN315M, 1.6582, 35NCD6, 816M40, 817M40, 35NiCrMo6, SNCM447, 30Ch2N2MA, F.1272, 40NiCrMo7, 4337, 4340, 92541, VSQT34CrNiMo6, VSQT34CrNiMo6/700, VSQT34CrNiMo6/800, VSQT34CrNiMo6/900, Stål 2541, Steel 2541, EN24
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	270 @Thickness >=200 mm	Round bar
	285 @Thickness <=150 mm	Round bar
	300 @Thickness 100 - 200 mm	Round bar
	330 @Thickness 50.0 - 100 mm	Round bar
	360 @Thickness <=50.0 mm	Round bar
Tensile Strength	700 MPa @Thickness >=200 mm	Round bar
	800 MPa @Thickness 100 - 200 mm	Round bar
	900 MPa @Thickness 50.0 - 100 mm	Round bar
	1000 MPa @Thickness <=50.0 mm	Round bar
Tensile Strength, Yield	>= 600 MPa @Thickness >=200 mm	Round bar
	>= 700 MPa @Thickness 100 - 200 mm	Round bar
	>= 800 MPa @Thickness 50.0 - 100 mm	Round bar
	>= 900 MPa @Thickness <=50.0 mm	Round bar
Elongation at Break	10 % @Thickness <=50.0 mm	Round bar
	10 % @Thickness 50.0 - 100 mm	Round bar
	10 % @Thickness 100 - 200 mm	Round bar
	10 % @Thickness >=200 mm	Round bar
Reduction of Area	45 % @Thickness <=50.0 mm	Round bar
	45 % @Thickness 50.0 - 100 mm	Round bar
	45 % @Thickness 100 - 200 mm	Round bar
	45 % @Thickness >=200 mm	Round bar
Modulus of Elasticity	210 GPa
Poissons Ratio	0.30
Shear Modulus	80.0 GPa
Impact Test	90.0 J @Thickness <=150 mm, Temperature 20.0 °C	Round bar, long
	115 J @Thickness 50.0 - 100 mm, Temperature 20.0 °C	Round bar, long
	140 J @Thickness <=500 mm, Temperature 20.0 °C	Round bar, long

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000200 - 0.00000250 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	12.0 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.460 - 0.480 J/g-°C @Temperature 50.0 - 100 °C
Thermal Conductivity	40.0 - 45.0 W/m-K	Ambient temperature
Transformation Temperature	315 °C	MS
	725 °C	AC1
	785 °C	AC3

Component Elements Properties	Original Value	Comments
Carbon, C	0.32 - 0.38 %
Chromium, Cr	1.3 - 1.6 %
Iron, Fe	94.84 - 96.08 %	As Balance
Manganese, Mn	0.65 - 0.80 %
Molybdenum, Mo	0.20 - 0.30 %
Nickel, Ni	1.3 - 1.6 %
Phosphorus, P	<= 0.025 %
Silicon, Si	0.15 - 0.35 %
Sulfur, S	<= 0.0020 %
Vanadium, V	<= 0.10 %

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