G10640 - ASTM A682/A682M-2005

USA UNS	G10640
AISI American Iron and Steel Institute	1064
Corresponding Standard	ASTM A682/A682M-2005 Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled, General Requirements For
Classification	Carbon Steel

Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	Cr ^{② ③}	Ni ^②	Cu ^②	Mo ^②
Minimum Value	0.6	0.15	0.5	-	-	-	-	-	-
Maximum Value	0.7	0.3	0.8	0.03	0.035	0.25	0.3	0.3	0.1

* There is no specified limit on aluminum, vanadium, niobium, and titanium, but the analysis shall be reported.
① When agreed by purchaser and supplier, other silicon ranges are permissible.
② The sum of copper. nickel, chromium, and molybdenum shall not exceed 0.80 % on heat analysis. When one or more of these elements is specified, the sum does not apply, in which case only the individual limits on the remaining elements will apply.
③ When the chromium is specified or added for antigraphitization, the maximum shall be 1.40 wt. %.

New and Old Grade Replacement List

Corresponding Standard	Grade
ASTM A682/A682M-2005	USA UNS AISI
ASTM A684/A684M-2024	AISI

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