This standard specifies extended arc welding rods (hereinafter referred to as welding rods) used for welding high-strength steels with a tensile strength of 490 N/mm class to 780 N/mm class.
JIS Z 3212:2000 history
2008JIS Z 3211:2008 Covered electrodes for mild steel, high tensile strength steel and low temperature service steel
2000JIS Z 3212:2000 Covered electrodes for high tensile strength steel
1990JIS Z 3212:1990 Covered electrodes for high tensile strength steel