Ovako 25CrMo4 322A Steel, Hardening

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Ovako 25CrMo4 322A Steel, Hardening
Categories:	Metal; Ferrous Metal; Alloy Steel; AISI 9000 Series Steel
Material Notes:	General Information: Grade Ovako 322A and 322D are Cr and Mo alloyed quench and tempering steel with low carbon content. The steel combine high strength with high toughness. Variant 322A correspond to the EN grade 25CrMo4. Variant 322D corresponds to SAE 4130 / 30CrMo4*. Suitable for flame or induction hardening. Variant 6014 is EN grade 25CrMo4 M-steel Delivered as rolled, soft annealed normalized or quench and tempered. Weldable under certain conditions. Information provided by Ovako
Key Words:	9224 - 27CrMo4-2, 30CrMo4*, 30CrMo4, SS2225, 4130
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	200 @Thickness >=100 mm	Round bar
	230 @Thickness >=15.0 mm	Tube, wall
	230 @Thickness 40.0 - 100 mm	Round bar
	250 @Thickness <=15.0 mm	Tube, wall
	250 @Thickness <=40.0 mm	Round bar
Tensile Strength	620 MPa @Thickness >=100 mm	Round bar
	730 MPa @Thickness >=15.0 mm	Tube, wall
	730 MPa @Thickness 40.0 - 100 mm	Round bar
	800 MPa @Thickness <=40.0 mm	Round bar
	800 MPa @Thickness <=15.0 mm	Tube, wall
Tensile Strength, Yield	>= 490 MPa @Thickness >=100 mm	Round bar
	>= 600 MPa @Thickness 40.0 - 100 mm	Round bar
	>= 600 MPa @Thickness >=15.0 mm	Tube, wall
	>= 680 MPa @Thickness <=40.0 mm	Round bar
	>= 680 MPa @Thickness <=15.0 mm	Tube, wall
Elongation at Break	15 % @Thickness <=15.0 mm	Tube, wall
	15 % @Thickness >=15.0 mm	Tube, wall
	15 % @Thickness <=40.0 mm	Round bar
	15 % @Thickness 40.0 - 100 mm	Round bar
	15 % @Thickness >=100 mm	Round bar
Reduction of Area	15 % @Thickness <=15.0 mm	Tube, wall
	15 % @Thickness >=15.0 mm	Tube, wall
	15 % @Thickness <=40.0 mm	Round bar
	15 % @Thickness 40.0 - 100 mm	Round bar
	15 % @Thickness >=100 mm	Round bar
Modulus of Elasticity	210 GPa
Poissons Ratio	0.30
Shear Modulus	80.0 GPa

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	391 °C	MS
	746 °C	AC1
	826 °C	AC3

Component Elements Properties	Original Value	Comments
Carbon, C	0.22 - 0.28 %
Chromium, Cr	0.90 - 1.15 %
Iron, Fe	96.66 - 98.01 %	As Balance
Manganese, Mn	0.60 - 0.90 %
Molybdenum, Mo	0.15 - 0.30 %
Nickel, Ni	<= 0.25 %
Phosphorus, P	<= 0.025 %
Silicon, Si	0.10 - 0.40 %
Sulfur, S	0.020 - 0.035 %

Descriptive Properties
Weldability	CEV 0.78_max
	Pcm 0.45_max

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NOVAKO200 / 234499

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