Relevant difference (Cold Rolled Steel & Hot Steel Coil)|

1. Appearance and surface quality:
Since the cold plate is obtained by the hot plate after the cold rolling process, and some surface finishing will be carried out at the same time, the surface quality (such as surface roughness) of the cold plate is better than that of the hot plate. It came well, so if there is a high requirement for the coating quality such as the subsequent painting of the product, the cold plate is generally selected, and the hot plate is divided into pickled plate and un-picked plate. The surface of the pickled plate is formed due to pickling. Normal metallic color, but it is not cold-rolled, so the surface is still not as high as the cold plate. The surface of the un-pickled plate usually has an oxide layer, black, or there is a black layer of ferric oxide. Generally speaking, it looks like it has been baked by fire. , and if the storage environment is not good, it will usually be embroidered.

2. Performance:
In general, the mechanical properties of hot plates and cold plates are considered to be indistinguishable in engineering, although there is a certain work hardening of cold plates in the cold rolling process, (but the strict requirements on mechanical properties are not ruled out. , then it needs to be treated differently), the yield strength of the cold plate is usually slightly higher than that of the hot plate, and the surface hardness is also higher, the specific way depends on the degree of annealing of the cold plate. But in any case, the strength of the annealed cold plate is higher than that of the hot plate.

3. Forming performance.
Since the performance of cold and hot plates is basically not too different, the influencing factors of forming performance depend on the difference in surface quality. Since the surface quality is better from cold plates, generally speaking, the same material Steel plate, the forming appearance effect of cold plate is better than that of hot plate.

Gnee Steel Co.,Ltd (GNEE) is the affiliated company for ANGANG GROUP who are one large state-owned iron and steel group located in Henan, China.

GNEE are specialized in manufacturing and supplying large quantities Seamless steel pipes and Shipping-building plates, We are provide high quality steel of Steels and Coils, plates, tool steels,steel pipes and other steel products with guaranteed Grade-A quality, excellent performance and competitive prices.

All of steel products from GNEE have been exported to overseas distributors, warehouses, and factories in USA, Mid-east, Europe, Bangladesh, Sri Lanka, Egypt, Saudi Arabia, and other countries and regions. Therefore, GNEE has got a great market share in the international market.

GNEE have a professional technician team, which not only have decades working experience in steel industry, but also have a deep and clear insight of the technology condition and the manufacturing state in the Chinese main steel mills.

With the high efficient supervision system and professional experience, we offer our efficient and considerate service to clients around the world. We hope sincerely to become your Chinese supplier and partner.

Our company will remain honest and pragmatic as always to safeguard, strengthen and carry forward our National Brand, provide quality commodities and top-class services to domestic and overseas clients. We sincerely wish to develop long-term win-win cooperation with domestic and overseas clients.