steel JIS G3302 Galvanized Steel Sheet Grade Guide: SGCC to SGCE — Coating Weight, Grades, and Specifications
JIS G3302 covers hot-dip galvanized cold-rolled steel in five formability grades from SGCC to SGCE. Full guide to the Z-code coating weight system, surface treatment options, galvannealed (ZF) variant, and ASTM A653 / EN 10346 equivalents.