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Elmet Technologies

Carpenter Chrome Core® 8 Alloy
Categories: Metal; Electronic/Magnetic Alloy; Ferrous Metal

Material Notes: Data provided by Carpenter Technology Corporation.

Chrome Core® alloys are a family of controlled chemistry, ferritic 8 and 12% chromium-iron alloys which are candidates for use in magnetic components where corrosion resistance superior to that of pure iron, low carbon steel and silicon-iron alloys is desired without the substantial decrease in saturation induction associated with the 18% Cr ferritic stainless steels.

Applications could include electro-mechanical devices requiring some degree of corrosion resistance, either in service or for extended shelf life without the need for protective coatings. Chrome Core alloys have been considered for use in automotive components such as fuel injectors, fuel pump motor laminations and ABS solenoids. Each chrome level is available in both a standard and a free-machining grade.

Chrome Core® is a registered trademark of Carpenter Technology Corporation.

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 7.70 g/cc0.278 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 7373
Tensile Strength, Ultimate 421 MPa61100 psi
Tensile Strength, Yield 228 MPa
@Strain 0.2 %
33100 psi
@Strain 0.2 %
Elongation at Break 50 %50 %in 50 mm
Reduction of Area 73 %73 %
Modulus of Elasticity 200 GPa29000 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000490 ohm-cm0.0000490 ohm-cm
Curie Temperature 750 °C1380 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.2 µm/m-°C
@Temperature 25.0 - 50.0 °C
6.22 µin/in-°F
@Temperature 77.0 - 122 °F
 11.6 µm/m-°C
@Temperature 25.0 - 300 °C
6.44 µin/in-°F
@Temperature 77.0 - 572 °F
 12.6 µm/m-°C
@Temperature 25.0 - 600 °C
7.00 µin/in-°F
@Temperature 77.0 - 1110 °F
Specific Heat Capacity 0.415 J/g-°C0.0992 BTU/lb-°F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.030 %<= 0.030 %
Chromium, Cr 7.5 - 8.5 %7.5 - 8.5 %
Iron, Fe 91 %91 %as remainder
Manganese, Mn 0.20 - 0.70 %0.20 - 0.70 %
Molybdenum, Mo 0.20 - 0.50 %0.20 - 0.50 %
Phosphorus, P 0.030 %0.030 %
Silicon, Si 0.30 - 0.70 %0.30 - 0.70 %
Sulfur, S <= 0.030 %<= 0.030 %

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NCARG0 / 15761

Elmet Technologies

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