- ASTM A684/A684M-2024

SAE Steel Number	1085
Corresponding Standard	ASTM A684/A684M-2024 Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled
Classification	Carbon Steel

Chemical Element Composition Content (%)

Component	C	Mn	P	S	Cr ^{② ③}	Ni ^②	Cu ^②	Mo ^②	More
Minimum Value	0.8	0.7	-	-	0.25	-	0.3	0.1	Type 1：Si 0.15~0.30 Type 2：Si≤0.10 ①
Maximum Value	0.93	1	0.03	0.035	0.3	0.3	0.5	0.16	Type 1：Si 0.15~0.30 Type 2：Si≤0.10 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%.

New and Old Grade Replacement List

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

1 Approximate Comparison Table Wrought Aluminum and Aluminum Alloy

China	Japan	United States		International Organization for Standardization		European Standard
GB	JIS	ASTM	UNS	ISO	Numerical Grade	EN
1085	1085 A91085	1085	A91085	Al99.85	A91085	EN-AW-Al99.85

2 Approximate Comparison Table High-Quality Carbon Structural Steel

China	United States	European Standard		Russia
GB	ASTM	EN	Numerical Grade	GOST
85	1085	C86D	1.0616	85

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!