Grade 1030
Corresponding Standard ASTM A866-2014
Medium Carbon Anti-Friction Bearing Steel
Classification Bearing Steel
1030 Chemical Element Composition Content (%)
Component C Si Mn P S Cu Al O
Minimum Value 0.28 0.15 0.6 - - - - -
Maximum Value 0.34 0.35 0.9 0.025 0.025 0.3 0.05 0.002
Note1: Elements not quoted shall not be intentionally added to the steel without the agreement of the purchaser
Note2: Intentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless specifically approved by the purchaser
Note3: Oxygen content applies to product analysis and shall be determined in accordance with Test Methods E1019.
1 Approximate Comparison Table High-Quality Carbon Structural Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
30 U20302 S30C S30C SM30C 1030 G10300 C30E4 C30E
Ck30
1.1178 C30E
SC32
30 C30E
080M30
2 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB JIS SAE ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
30 S30C 1030 C30
C30E4
C30
Ck30
1.0528 AF50C30
XC32
C30 1.0528 30 080M32
En5

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