BS 1501 622B

BS 1501 622B Although no longer a currently specified steel grade, 622B is still referred to by our customers and as a consequence we have included information here for cross referencing purposes. 622B is a chrome moly pressure vessel grade steel for use in elevated...

BS 1501 621B

BS 1501 621B Grade 621B has long been superseded by EN10028 but as our clients still make reference to this chrome moly grade, we have included details here, which should be used for cross reference purposes. 621B is a chrome moly steel for use in pressurised vessels...

BS 1501 620B

BS 1501 620B Grade 620B is an older British Standard for pressure vessel grade chrome moly steel which has now been superseded by EN10028. Although now out of date, many of our customers still refer to 620B so we have included details on our website – please note that...