The document is primarily composed of tables that define standard dimensions and the "permissible variations" (tolerances) for those dimensions. 1. Thickness Tolerances
ASTM A6 is the American standard for general requirements for rolled steel shapes. Both cover similar ground (dimensions, mass, tolerances), but the numbers differ. An H-beam meeting JIS G 3193 may not automatically meet ASTM A6 without conversion. Always specify the governing standard. jis g 3193 pdf
You're looking for a PDF related to JIS G 3193! The document is primarily composed of tables that