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Master Bond adhesives

Ovako 100CrMo7-4 826B Steel, Q/T (martensite)
Categories: Metal; Ferrous Metal; Alloy Steel; Low Alloy Steel; Carbon Steel; High Carbon Steel

Material Notes: General Information: Ovako 826 is a through hardening bearing steel that is mainly used for medium sized bearing rings, but it can also be used for machine components that require high tensile strength, hardness and toughness.
826B - Bearing quality (BQ) variant
  • Through hardenability corresponding to a ring with approximately 50mm wall thickness (˜Ø80mm bar), quenched in oil
  • Suitable for martensitic or banitic hardening
  • Good machinability in soft annealed condition
  • Good dimensional stability
BQ-Steel:(Bearing Quality) is a bearing quality clean steel optimized for fatigue strength by a strict control of steel cleanliness. BQ-steel is also ideal for new design solutions in a wide array of demanding applications outside the bearing industry that require longer performance and higher loads. The BQ steel offer is the result of the Ovako clean steel program. Purity of production means that the material has significantly smaller inclusions compared to conventional steel and, as a result, the fatigue strength of the steel is increased dramatically. Use of the material allows components to be manufactured in smaller sizes. The BQ-steel has for decades been the problem-solver.

Information provided by Ovako

Key Words: A485 (B7)
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, Rockwell C 61
@Thickness <=50.0 mm
61
@Thickness <=1.97 in
Tensile Strength 2300 MPa
@Thickness <=50.0 mm
334000 psi
@Thickness <=1.97 in
Tensile Strength, Yield >= 1700 MPa
@Thickness <=50.0 mm
>= 247000 psi
@Thickness <=1.97 in
Modulus of Elasticity 210 GPa30500 ksi
Poissons Ratio 0.300.30
Shear Modulus 80.0 GPa11600 ksi
 
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 233 °C451 °FMS
 750 °C1380 °FAC1
 750 °C1380 °FAC3
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.93 - 1.05 %0.93 - 1.05 %
Chromium, Cr 1.56 - 1.95 %1.56 - 1.95 %
Iron, Fe 95.06 - 96.26 %95.06 - 96.26 %As Balance
Manganese, Mn 0.60 - 0.80 %0.60 - 0.80 %
Molybdenum, Mo 0.40 - 0.50 %0.40 - 0.50 %
Nickel, Ni <= 0.25 %<= 0.25 %
Phosphorus, P <= 0.025 %<= 0.025 %
Silicon, Si 0.25 - 0.35 %0.25 - 0.35 %
Sulfur, S 0.0050 - 0.015 %0.0050 - 0.015 %

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NOVAKO059 / 234358

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