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Miscellaneous chromium molybdenum steel, B7, ASTM A485
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Range attributes
Al (Aluminum)
0.05
% (maximum)
Brinell Hardness
260
(maximum)
C (Carbon)
0.93 to 1.05
%
Cr (Chromium)
1.65 to 1.95
%
Cu (Copper)
0.3
% (maximum)
Fe (Iron)
95 to 96.3
%
(estimate)
Mn (Manganese)
0.6 to 0.8
%
Mo (Molybdenum)
0.4 to 0.5
%
P (Phosphorus)
0.025
% (maximum)
S (Sulfur)
0.015
% (maximum)
Si (Silicon)
0.15 to 0.35
%
Discrete attributes
~Checking Status
Not verified - Original build
Date Last Checked
Thursday, October 17, 2013
Alloy Family
Alloy Steel
Alloy Group
Chromium molybdenum steel
Alloy Sub-Group
Miscellaneous chromium molybdenum steel
Available forms
Wrought
Base Element
Fe (Iron)
Country
USA
Material Class
Ferrous Alloy
Source
Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006
Specification Status
Active
Specification Type
Standard
Standards Body
ASTM (USA)
Short text attributes
Alternate Name
100CrMo7-4
Composition Note_old
Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one.
Country*
USA
Description_old
High C bearing quality steel for the manufacture of antifriction bearings; high hardenability.
Designation
B7
Specification
ASTM A485
Specification Status Notes
active 2003
Long text attributes
Composition Note
Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one.
Description
High C bearing quality steel for the manufacture of antifriction bearings; high hardenability.
Hyperlink attributes
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Integer attributes
Specification Year
2003
Further Information
Organizations
American Society for Testing and Materials (ASTM)
No warranty is given for the accuracy of these data
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