The main differences between fine-rolled rebar and ordinary rebar are: mainly used for higher strength. The difference is mainly different in strength and chemical composition:
Specification differences
The common specifications of fine-rolled rebar are 15MM 25MM 32MM 36MM 40MM. There is no 15 specification for ordinary rebar. Finish-rolled rebar does not have specifications 12, 14, 16, 28.
Differences in appearance
The appearance of fine-rolled rebar is slightly different from that of ordinary rebar. Fine-rolled rebar has no longitudinal ribs, so the nuts of fine-rolled rebar can be connected directly.