unless your needing it for a very specific reason, i would just ask for steel and dom and not worry about it... whats it for if you dont mind me asking?
there are litterially thousands of differnt types of metal/alloys/special names that mfg's just give the same metal.. ect...
SAE/AISI method (most common, in USA): http://en.wikipedia.org/wiki/SAE_steel_grades
ASTM method: http://www.strittandpriebe.com/content/ ... -chart.pdf
cross reference guide: http://en.wikipedia.org/wiki/Steel_grades
idk what method Zealand uses, im guessing maybe EN...? hope this helps