Cold Rolled Steel Sheet Tensile Strength

2 cold rolled steels product description.

Cold rolled steel sheet tensile strength.

The steel s strength is obtained by water quenching from an austenitic temperature resulting in a martensitic microstructure. 780 1470 n mm grade cold rolled ultra high tensile strength steel sheet. This material is used in hot stamping applications to achieve final ultimate tensile strength approaching 1500 mpa. The yield strength and tensile strength of cold rolled will be higher than hot rolled.

However when cold rolled the tensile strength can increase to 85 000 psi with a yield strength of 70 000 psi. However the ductility of a cold rolled steel is decreased. In comparison a cold rolled steel product with the same chemical composition has a yield strength of 365 mpa. The product is available in five strength levels.

780 1470 n mm grade cold rolled ultra high tensile strength steel sheet. For this reason steel sheets with tensile strength ts of 980 mpa and higher are frequently used in the cabin structure. As an example a hot rolled steel product may have a yield strength of 235 mpa. The main advantages of cold working are.

Thus the yield strength of cold rolled steel is higher than that of hot rolled steel. 1 1 this specification covers a cold rolled ultra high strength carbon steel sheet in coils or cut lengths. Cold rolled super high tensile strength steel sheet with the level forming formability is at the top level in the industry. Jfe steel has developed continuous annealing equip ment1 3 which is necessary in the manufacture of high strength steel sheets and was among the first to com mercialize and expand the use of ultra high strength.