1050 - ASTM A866-2014

Grade	1050
Corresponding Standard	ASTM A866-2014 Medium Carbon Anti-Friction Bearing Steel
Classification	Bearing Steel

1050 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cu	Al	O
Minimum Value	0.48	0.15	0.6	-	-	-	-	-
Maximum Value	0.55	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

United States	International Organization for Standardization	Germany	European Standard
ASTM	ISO	DIN EN/DIN	EN	Numerical Grade
1050	C50R C50M2	Cm50	C50R	1.1241

2 Approximate Comparison Table Wrought aluminum and aluminum alloy

China	Japan	United States		International Organization for Standardization		Germany		European Standard	United Kingdom
GB	JIS	ASTM	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	EN	Commercial Grade	BS EN/BS
1050	1050 A91050	1050	A91050	Al99.5	A91050	Al99.5	3.0255 A91050	EN-AW-Al99.5	1B	1050 A91050

3 Approximate Comparison Table

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
50	S50C	1049 1050	C50 C50E4	C50 Ck50	XC48H1	C50	1.0540	50	1674	070M50 080M50

4 Approximate Comparison Table

Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
S50C	1050	C50E4	Ck50	XC50	C50E	1.1206	50	1674	080M50 CS50

5 Approximate Comparison Table thermal bimetal

China	Japan	United States	International Organization for Standardization	France	Russia
GB	JIS	ASTM	ISO	NF EN/NF	GOST
5J1306A	TM5A, TR25	1050	TB137/16	R40, R8	ТБ1353 ТБ0953

1050 Corresponding Standards(Same grade name, different standards)

1	AA
	1050
2	ASTM A29/A29M-2012
	1050 G10500
3	GB /T 3190-2008
	1050
4	ASTM A29/A29M-2005
	1050 G10500
5	ASTM A510/A510M-2013
	1050 G10500 1050
6	SAE J403-2014
	1050 G10500
7	ASTM A29/A29M-2020
	1050 G10500
8	ASTM A866-2014
	1050
9	GB /T 3190-2020
	1050
10	JIS H 4040-2015
	1050 A1050 BE A1050 BD A1050 W
11	JIS H 4160-1994(R2005)
	1050
12	GB /T 3880.1-2012
	1050
13	JIS H 4000-2022
	1050 A1050P

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