Cold-rolled ribbed steel Environmental requirements: steel test is generally within the temperature range of 10 ~ 35 ℃ were straight 6.5mm cold-rolled steel prices, there are strict requirements of the test, the temperature was 23 ± 5 ℃. Determination of tensile strength Rm: Look steel surface quality, reinforcement should be no harmful surface defects. The original mark gauge cold-rolled strip steel straight, the application of small marks, fine lines crossed or ink marks gauge 6.5mm cold-rolled steel plant straight, but not with the gap caused by premature rupture mark. The ratio of the sample 6.5mm cold-rolled steel straight cash, calculate the value of the original gauge rounded to the nearest multiple of 5mm, the middle value to the larger party rounding. The original gauge length shall be marked accurately to ± 1%. Cold-rolled ribbed steel Technical requirements: Grades and chemical composition. Manufacture of steel wire rod should be consistent with GB / T 701, GB / T 4354 or other relevant standards. Delivery Status: reinforced by cold state of delivery. Cryogenic tempering process allows cold rolling. Mechanical properties and process performance: When bending test, by the curved parts of the surface shall cracks. 6.5mm cold rolled steel straight wholesale, Jiangxi cold-rolled strip steel straight, cold-Ding Ding Ding Ding Industrial Co., Ltd., Henan Province by. Ding Ding Industrial Co., Ltd., Henan Province (www.hnddsy.com) strong, credible, and other industries in other Anyang accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Dingding cold rolling and you hand into the brilliant, for a better future!