Japanese standards

product introduction Shanghai constant Joe trade co., LTD is a supplier can provide the high quality steel products, the main products are cold rolled coil, hot coil, galvanization coil rolled plate of stainless steel, tinplate, etc. Products are the standard of a series of car with hot rolled steel plate and steel belt. Total includes[more]

Hot rolling principle: Hot rolling is to point to in metal rolling above the recrystallization temperature. Recrystallization is when annealing temperature is high enough, the time is long enough, the deformation of metal or alloy of fibrous tissue strainless new grain recrystallization (core), the new grains growing up continuously, until the original deformation organization completely[more]

Hot rolling principle: Hot rolling is to point to in metal rolling above the recrystallization temperature. Recrystallization is when annealing temperature is high enough, the time is long enough, the deformation of metal or alloy of fibrous tissue strainless new grain recrystallization (core), the new grains growing up continuously, until the original deformation organization completely[more]

Hot rolling principle: Hot rolling is to point to in metal rolling above the recrystallization temperature. Recrystallization is when annealing temperature is high enough, the time is long enough, the deformation of metal or alloy of fibrous tissue strainless new grain recrystallization (core), the new grains growing up continuously, until the original deformation organization completely[more]

NES – M2021-2008 series steel plate is up to the standard of Japanese car steel, SP is one of the products, not approved manufacturer’s long with SP specification Hot rolled steel plate is above the recrystallization temperature of rolling steel plate, because of its working procedure is less, so the energy consumption is low, the[more]

Cold-rolled, hot-rolled steel coil for raw material, after acid pickling to remove oxide skin for cold rolling, the finished product is hard, because of cold work hardening caused by deformation of continuous cold rolling hard roll strength, increase hardness, toughness and plastic index decreased, so the stamping performance will deteriorate, can only be used for[more]

  Cold-rolled, hot-rolled steel coil for raw material, after acid pickling to remove oxide skin for cold rolling, the finished product is hard, because of cold work hardening caused by deformation of continuous cold rolling hard roll strength, increase hardness, toughness and plastic index decreased, so the stamping performance will deteriorate, can only be used[more]