High strength steel prices | Dingding cold rolled (certified) | high strength steel provided by Ding Ding Industrial Co., Ltd., Henan Province. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) is a professional enterprise, "cold-rolled ribbed steel CRB550", the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liu. Cold-rolled ribbed steel Measure: horizontal rib height is measured by measuring the same section height of each column is the mean value of transverse ribs; transverse rib spacing method by measuring the average spacing of high-strength steel plants, take the same measure that the first row of transverse ribs a first transverse ribs 11 from the center, divided by the average value of 10 is the transverse rib spacing. Size measurement accuracy is accurate to 0.02mm. When measuring weight deviation reinforced high strength steel manufacturers, sample length should not be less than 500mm. Length measurements accurate to 1mm, weight measurement should be accurate to 1 g. Grade steel is different because of the different chemical composition of high-strength steel rebar spot, the chemical composition of different high-strength steel, it's also caused by different mechanical index. One, two, three steel producing country in accordance with the needs of society to work out the material standards, its yield strength, ultimate strength, elongation, cold, and weldability are very different, the use of different levels of reinforcement Location also great together.