Classifications

BIS Classifications

Electrode Classification	Range of Tensile Strength N/mm2	Minimum Yield stress N/mm2	Minimum elongation on a Gauge length of 5.65VSo	Temperature and the required impact strength Temp °C Impact strength Joules
EX-40XX	410-540	330	16	Not required
EX-41XX	410-540	330	20	27	47
EX-42XX	410-540	330	22	0	47
EX-43XX	410-540	330	24	-20	47
EX-44XX	410-540	330	24	-30	27
EX-50XX	510-610	400	16	Not required
EX-51XX	510-610	400	18	27	47
EX-52XX	510-610	400	18	0	47
EX-53XX	510-610	400	20	-20	47
EX-54XX	510-610	400	20	-30	27
EX-55XX	510-610	400	20	-40	27
EX-56XX	510-610	400	20	-46	27

AWS CLASSIFICATION	TYPE OF COVERING	TYPE OF CURRENT
E 6010	High cellulose sodium	DC +
E 6011	High cellulose potassium	AC/DC +
E 6012	High titania sodium	AC/DC -
E 6013	High titania potassium	AC/DC ±
E 6020	High iron oxide	AC/DC -
E 6022	High iron oxide	AC/DC ±
E 6027	High iron, oxide iron powder	AC/DC -
E 7014	Iron powder, titania	AC/DC ±
E 7015	Low hydrogen sodium	DC +
E 7016	Low hydrogen potassium	AC/DC +
E 7018	Low hydrogen potassium, iron powder	AC/DC +
E 7024	Iron powder, titania	AC/DC ±
E 7027	High iron oxide, iron powder	AC/DC -
E 7028	Low hydrogen potassium, Iron powder	AC/DC +
E 7048	Low hydrogen potassium, iron powder	AC/DC +