Cold Rolled Steel Sheet Tensile Strength

Cold rolled super high tensile strength steel sheet with the level forming formability is at the top level in the industry.

Cold rolled steel sheet tensile strength.

However when cold rolled the tensile strength can increase to 85 000 psi with a yield strength of 70 000 psi. Press hardenable steels phs press hardenable steel phs commonly referred to as mn22b5 or 15b22 is available as cold rolled full hard or annealed and tempered. Yield strength tensile strength and ductility values for steels at room temperature. 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.

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. The steel s strength is obtained by water quenching from an austenitic temperature resulting in a martensitic microstructure. This material is used in hot stamping applications to achieve final ultimate tensile strength approaching 1500 mpa.

However the ductility of a cold rolled steel is decreased. 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. The yield strength and tensile strength of cold rolled will be higher than hot rolled.

1 1 this specification covers a cold rolled ultra high strength carbon steel sheet in coils or cut lengths. As an example a hot rolled steel product may have a yield strength of 235 mpa. The main advantages of cold working are. 780 1470 n mm grade cold rolled ultra high tensile strength steel sheet.