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Master Bond adhesives

Ovako 42CrMo4 327A Steel, Quench & Tempering
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel
Material Notes: General Information: 42CrMo4 is a steel for quenching and tempering, which has a good combination of strength and toughness in the quenched and tempered condition. After the oil quenching, the steel will be through hardened up to ø60 mm bar diameter. The microstructure of larger dimensions is not fully martensite. The steel is applicable to induction hardening. The surface hardness will exceed min. 53 HRC. 42CrMo4 can be delivered M-treated in order to optimize the machinability.
Variant 6082 is offered under the name MoC410M
Variant 6137 conform with L7 ASTM A320
Variant SB9288 is offered under the name SB42CrMo4
Variant SB9287 with a slightly increased hardenability, is offered under the name SB42CrMo4.
Variant 327S is a continuous casted variant with slightly increased hardenability, similar to the ingot casted variant 327A
Variant 327A is an ingot casted variant with slightly increased hardenability.Variant 326C is a BQ-steel variant which fulfils SAE 4140 standard but has a restricted sulphur content for improved cleanliness and a lower maximum allowed phosphorus content for improved mechanical properties

BQ-SteelBQ-steel® is a bearing quality clean steel optimized for fatigue strength and is also ideal for new design solutions outside the bearing industry.

Information provided by Ovako
Key Words: AISI 4140, 42CD4(AFNOR), 708M40(B.S.), SS 2244, SS142244, SAE 4140H, ASTM A193 B7, 41Cr4, 42CrMoS4
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 7.80 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell  220 - 270
@Thickness 160 - 180 mm		220 - 270
@Thickness 6.30 - 7.09 in		Round bar
 240 - 280
@Thickness 100 - 160 mm		240 - 280
@Thickness 3.94 - 6.30 in		Round bar
 270 - 320
@Thickness 40.0 - 100 mm		270 - 320
@Thickness 1.57 - 3.94 in		Round bar
 300 - 350
@Thickness 25.0 - 40.0 mm		300 - 350
@Thickness 0.984 - 1.57 in		Round bar
Tensile Strength  750 - 900 MPa
@Thickness 160 - 180 mm		109000 - 131000 psi
@Thickness 6.30 - 7.09 in		Round bar
 800 - 950 MPa
@Thickness 100 - 160 mm		116000 - 138000 psi
@Thickness 3.94 - 6.30 in		Round bar
 900 - 1100 MPa
@Thickness 40.0 - 100 mm		131000 - 160000 psi
@Thickness 1.57 - 3.94 in		Round bar
 1000 - 1200 MPa
@Thickness 25.0 - 40.0 mm		145000 - 174000 psi
@Thickness 0.984 - 1.57 in		Round bar
Tensile Strength, Yield  >= 500 MPa
@Thickness 160 - 180 mm		>= 72500 psi
@Thickness 6.30 - 7.09 in		Rel, Round bar
 >= 550 MPa
@Thickness 100 - 160 mm		>= 79800 psi
@Thickness 3.94 - 6.30 in		Rel, Round bar
 >= 650 MPa
@Thickness 40.0 - 100 mm		>= 94300 psi
@Thickness 1.57 - 3.94 in		Rel, Round bar
 >= 750 MPa
@Thickness 25.0 - 40.0 mm		>= 109000 psi
@Thickness 0.984 - 1.57 in		Rel, Round bar
Elongation at Break  11 %
@Thickness 25.0 - 40.0 mm		11 %
@Thickness 0.984 - 1.57 in		Round bar
 12 %
@Thickness 40.0 - 100 mm		12 %
@Thickness 1.57 - 3.94 in		Round bar
 13 %
@Thickness 100 - 160 mm		13 %
@Thickness 3.94 - 6.30 in		Round bar
 14 %
@Thickness 160 - 180 mm		14 %
@Thickness 6.30 - 7.09 in		Round bar
Reduction of Area  45 %
@Thickness 25.0 - 40.0 mm		45 %
@Thickness 0.984 - 1.57 in		Round bar
 50 %
@Thickness 40.0 - 100 mm		50 %
@Thickness 1.57 - 3.94 in		Round bar
 50 %
@Thickness 100 - 160 mm		50 %
@Thickness 3.94 - 6.30 in		Round bar
 55 %
@Thickness 160 - 180 mm		55 %
@Thickness 6.30 - 7.09 in		Round bar
Modulus of Elasticity 210 GPa30500 ksi
Poissons Ratio 0.300.30
Shear Modulus 80.0 GPa11600 ksi
Impact Test  35.0 J
@Thickness 25.0 - 40.0 mm,
Temperature 20.0 °C		25.8 ft-lb
@Thickness 0.984 - 1.57 in,
Temperature 68.0 °F		Round bar, long
 35.0 J
@Thickness 40.0 - 100 mm,
Temperature 20.0 °C		25.8 ft-lb
@Thickness 1.57 - 3.94 in,
Temperature 68.0 °F		Round bar, long
 35.0 J
@Thickness 100 - 160 mm,
Temperature 20.0 °C		25.8 ft-lb
@Thickness 3.94 - 6.30 in,
Temperature 68.0 °F		Round bar, long
 35.0 J
@Thickness 160 - 180 mm,
Temperature 20.0 °C		25.8 ft-lb
@Thickness 6.30 - 7.09 in,
Temperature 68.0 °F		Round bar, long
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000200 - 0.00000250 ohm-cm0.00000200 - 0.00000250 ohm-cm
 
Thermal PropertiesMetricEnglishComments
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-K278 - 312 BTU-in/hr-ft²-°FAmbient temperature
Transformation Temperature 320 °C608 °FMS
 740 °C1360 °FAC1
 770 °C1420 °FAC3
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.41 - 0.45 %0.41 - 0.45 %
Chromium, Cr 1.0 - 1.2 %1.0 - 1.2 %
Iron, Fe 96.57 - 97.35 %96.57 - 97.35 %As Balance
Manganese, Mn 0.65 - 0.80 %0.65 - 0.80 %
Molybdenum, Mo 0.22 - 0.28 %0.22 - 0.28 %
Nickel, Ni 0.15 - 0.30 %0.15 - 0.30 %
Phosphorus, P <= 0.025 %<= 0.025 %
Silicon, Si 0.20 - 0.35 %0.20 - 0.35 %
Sulfur, S 0.020 - 0.030 %0.020 - 0.030 %
 
Descriptive Properties
WeldabilityCEV 0.92max
 Pcm 0.6max

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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NOVAKO299 / 234598




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