This comparision in very complex in nature.

ASTM A216 is Standard Specification for Steel Casting.

This specification covers carbon steel castings for valves, flanges, fittings, or other pressure-containing parts for high-temperature service and of quality suitable for assembly with other castings or wrought-steel parts by fusion welding.

It has 3 grades 1) WCA 2) WCB 3) WCC (Selection is based on design & service condition, mechanical & temp).

CS 1.0619 is equivalent of ASTM A216 Gr WCB which can be also referred as BS1504 Gr ?

CS 1.0625 is is equivalent of ASTM A216 WCC which can be also referred as BS1504 Gr ?

BS 3100 Gr A2, A1 is for general purpose casting.

BS 1504 is for casting used in pressure.

This comparision in very complex in nature.

ASTM A216 is Standard Specification for Steel Casting.

This specification covers carbon steel castings for valves, flanges, fittings, or other pressure-containing parts for high-temperature service and of quality suitable for assembly with other castings or wrought-steel parts by fusion welding.

It has 3 grades 1) WCA 2) WCB 3) WCC (Selection is based on design & service condition, mechanical & temp).

CS 1.0619 is equivalent of ASTM A216 Gr WCB which can be also referred as BS1504 Gr ?

CS 1.0625 is is equivalent of ASTM A216 WCC which can be also referred as BS1504 Gr ?

BS 3100 Gr A2, A1 is for general purpose casting.

BS 1504 is for casting used in pressure

?

I dont have the copy of standards, so i cannot confirm the grade.