
Super soft steel:
- carbon(%) : 0.05~0.14
- tensile(kgf/mm2) : 30~38
- function : Thin steel pieces, window frames, stainless, steel wire
Soft steel rivets:
- carbon(%) : 0.15~0.24
- tensile(kgf/mm2) : 38~45
- function : Rivets, pipes, screws, construction materials, steel bar