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Techcitizen (Mechanical) (OP)
24 Nov 03 22:39
Can anybody suggest the latest equivalent in BS or ASTM for the old BS970/72 - 015A03 low carbon steel ? Will any of the EN grades match this ?
atad (Aerospace)
25 Nov 03 9:00
Take a look at this pdf file reference table 8.  It appears to show the various equivalents.  I think the specification now is BS EN 10083-1 CR22E.


www.dstan.mod.uk/data/03/016/00000200.pdf
andyenergy (Materials)
25 Nov 03 10:11
There is no equivalent BS 970:1955 EN Grade for BS 970: 1970 015A03. The nearest equivalent is BS970 Pt1 1996 040A04 being equaivalent to the old EN grade 2A or 2A/1 but the specified C and Mn levels are slightly higher. Depends whether this is it is important or not. You coud try asking a stockholder to supply the 040A04 to the compositional limits of the old 015A03, but the Mn will bver be low enough to meet that low of 0.30% max.

For info:

015A03 was 0.06%C max, 0.30% Mn max.
040A04 is 0.08% C max, 0.30 - 0.50% Mn max
En2A/1 was  0.1%C max, 0.50% Mn max
En2A was 0.12% C max, 0.50% Mn max


ENB 10083-1:1991 is for quenched and tempered steels. CR22E has a specified C of 0.17/0.24% and Mn of 0.40/0.70% (plus maximum Cr+Mn+Ni of 0.63% Max) so it's not really the same.

Hope this helps

Andy
Techcitizen (Mechanical) (OP)
1 Dec 03 7:01
Thanks atad and Andy.
Any DIN matches on this ?

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