12-14-2021, 06:13 AM
For SAE/ASTM 10XX steels, the last two numbers are the approximate carbon content. For example, 1008 steel contains about 0.08% carbon and 1018 steel contains about 0.18% carbon.

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What do Steel Grade Numbers Mean? - by aluhm - 12-14-2021, 06:13 AM
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