FAQ

What is cold rolling machine(cold rolling mill)?

Cold rolling is accomplished by processing steel strip through a series of tandem rolling mill stands. Each stand has vertically stacked rolls that are powered by huge motors to impart high compressive stresses into the strip.

Steel grade of cold rolled ribbed bar

China standards of Steel grade of cold rolled ribbed bar is CRB550 CRB650 CRB800 CRB970. Finish steel bar packing usually is coil,CRB550 cold rolled ribbed bar can be straight  bar.

What mean of CRB550 steel wire

CRB550 is a grade of cold rolled ribbed steel wires and bars,C for cold rolled,R for ribbed,B for bar.550 means tensile strength is 550 Mpa .

What mean of CRB600H steel wire

CRB600H is a grade of cold rolled ribbed bar with improved elongation, H for cold rolled,R for ribbed,B for bar,600 means tensile strength is 600 Mpa,H for improved elongation.