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You are here: home->amg->E04->E.8.2.6.1.B.1
8261
The Society of Automotive Engineers (SAE) and the American Iron and Steel Institute use a numerical index system to identify the composition of various steels. In the number "4130" designating chromium molybdenum steel, the first digit indicates the
| | A) percentage of carbon in the alloy in hundredths of a percent. |
| | B) basic alloying element. |
| | C) percentage of the basic element in the alloy. |
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