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	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	270 @Thickness >=200 mm	270 @Thickness >=7.87 in	Round bar
	285 @Thickness <=150 mm	285 @Thickness <=5.91 in	Round bar
	300 @Thickness 100 - 200 mm	300 @Thickness 3.94 - 7.87 in	Round bar
	330 @Thickness 50.0 - 100 mm	330 @Thickness 1.97 - 3.94 in	Round bar
	360 @Thickness <=50.0 mm	360 @Thickness <=1.97 in	Round bar
Tensile Strength	700 MPa @Thickness >=200 mm	102000 psi @Thickness >=7.87 in	Round bar
	800 MPa @Thickness 100 - 200 mm	116000 psi @Thickness 3.94 - 7.87 in	Round bar
	900 MPa @Thickness 50.0 - 100 mm	131000 psi @Thickness 1.97 - 3.94 in	Round bar
	1000 MPa @Thickness <=50.0 mm	145000 psi @Thickness <=1.97 in	Round bar
Tensile Strength, Yield	>= 600 MPa @Thickness >=200 mm	>= 87000 psi @Thickness >=7.87 in	Round bar
	>= 700 MPa @Thickness 100 - 200 mm	>= 102000 psi @Thickness 3.94 - 7.87 in	Round bar
	>= 800 MPa @Thickness 50.0 - 100 mm	>= 116000 psi @Thickness 1.97 - 3.94 in	Round bar
	>= 900 MPa @Thickness <=50.0 mm	>= 131000 psi @Thickness <=1.97 in	Round bar
Elongation at Break	10 % @Thickness <=50.0 mm	10 % @Thickness <=1.97 in	Round bar
	10 % @Thickness 50.0 - 100 mm	10 % @Thickness 1.97 - 3.94 in	Round bar
	10 % @Thickness 100 - 200 mm	10 % @Thickness 3.94 - 7.87 in	Round bar
	10 % @Thickness >=200 mm	10 % @Thickness >=7.87 in	Round bar
Reduction of Area	45 % @Thickness <=50.0 mm	45 % @Thickness <=1.97 in	Round bar
	45 % @Thickness 50.0 - 100 mm	45 % @Thickness 1.97 - 3.94 in	Round bar
	45 % @Thickness 100 - 200 mm	45 % @Thickness 3.94 - 7.87 in	Round bar
	45 % @Thickness >=200 mm	45 % @Thickness >=7.87 in	Round bar
Modulus of Elasticity	210 GPa	30500 ksi
Poissons Ratio	0.30	0.30
Shear Modulus	80.0 GPa	11600 ksi
Impact Test	90.0 J @Thickness <=150 mm, Temperature 20.0 °C	66.4 ft-lb @Thickness <=5.91 in, Temperature 68.0 °F	Round bar, long
	115 J @Thickness 50.0 - 100 mm, Temperature 20.0 °C	84.8 ft-lb @Thickness 1.97 - 3.94 in, Temperature 68.0 °F	Round bar, long
	140 J @Thickness <=500 mm, Temperature 20.0 °C	103 ft-lb @Thickness <=19.7 in, Temperature 68.0 °F	Round bar, long

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000200 - 0.00000250 ohm-cm	0.00000200 - 0.00000250 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	12.0 µm/m-°C @Temperature 20.0 - 300 °C	6.67 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.460 - 0.480 J/g-°C @Temperature 50.0 - 100 °C	0.110 - 0.115 BTU/lb-°F @Temperature 122 - 212 °F
Thermal Conductivity	40.0 - 45.0 W/m-K	278 - 312 BTU-in/hr-ft²-°F	Ambient temperature
Transformation Temperature	315 °C	599 °F	MS
	725 °C	1340 °F	AC1
	785 °C	1450 °F	AC3

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

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