British Standard for Materials for carbon steel 1

[redandysafc]

Can anybody tell me the BS numbers for carbon steel fittings to british standard I know them to ASME but am struggling to find this out as I am writing a WPS API5L Grade B and need to know them for coverage on my WPS.
cHEERS

 

[KENAT]

Not off the top of my head. British Standards has an online library where you can access most standards. There is of course a fee but if your company will pay it it's incredibly useful.