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Master Bond adhesives

Carpenter S7 Alloy Tool Steel (AISI S7)
Categories: Metal; Ferrous Metal; Tool Steel; Air-Hardening Steel; Hot Work Steel

Material Notes: Carpenter S7 is a general purpose air hardening tool steel having high impact and shock resistance. It has good resistance to softening at moderately high temperatures. This combination of properties makes it suitable for many hot-work and cold-work applications. It is available as a DeCarb-Free product. DCF bars have been cold finished in the mill, eliminating the need for bar bark removal. Both Carpenter S7 and Bearcat, a trademark of Bethlehem Steel Corp., have the same AISI tool steel designation . . . S7.

Information provided by Carpenter Technology Corporation.

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Physical PropertiesMetricEnglishComments
Specific Gravity 7.83 g/cc7.83 g/cc
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C 37 - 4037 - 40Tempered at 1200°F
 59 - 6159 - 61As hardened
Tensile Strength, Ultimate 2025 MPa293700 psiwhen tempered at 400°F
Tensile Strength, Yield 1520 MPa
@Strain 0.2 %
220000 psi
@Strain 0.2 %
when tempered at 400°F
Elongation at Break 10 %10 %when tempered at 400°F
Reduction of Area 28 %28 %when tempered at 400°F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  12.59 µm/m-°C
@Temperature 25.0 - 200 °C
6.994 µin/in-°F
@Temperature 77.0 - 392 °F
 13.33 µm/m-°C
@Temperature 25.0 - 400 °C
7.406 µin/in-°F
@Temperature 77.0 - 752 °F
 14.27 µm/m-°C
@Temperature 25.0 - 700 °C
7.928 µin/in-°F
@Temperature 77.0 - 1290 °F
Transformation Temperature 785 °C1450 °FAc1
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.50 %0.50 %
Chromium, Cr 3.25 %3.25 %
Iron, Fe 93.85 %93.85 %As Balance
Manganese, Mn 0.70 %0.70 %
Molybdenum, Mo 1.4 %1.4 %
Silicon, Si 0.30 %0.30 %

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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NCARN25 / 15864

Rulon Bearings

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