Often requested for
- Heavier beams, columns, and slabs
- Sites where the drawing calls for G35
- Work that should not be substituted with a lower grade
The number in a grade such as G30 is commonly treated as the strength class in N/mm². That is industry naming, not a T3 test result. Your engineer specifies the grade. T3 confirms what can be supplied when quoting. This page is not an engineering design.