Product Details
Cold Rolled Steel Coil Production Process
Since there is no heating during the production process, there are
no defects such as pits and scales that often occur in hot rolling,
and the surface quality is good and the finish is high. Moreover,
the dimensional accuracy of cold-rolled products is high, and the
performance and structure of the products can meet some special
requirements, such as electromagnetic properties, deep drawing
properties, etc.
Cold rolling:
use hot-rolled steel coils as raw materials, pickle and remove
scale, and then carry out cold rolling. The finished product is
hard rolled coils. The strength, hardness, and toughness of hard
rolled coils increase due to cold hardening caused by continuous
cold deformation. The plastic index decreases, so the stamping
performance will deteriorate, and it can only be used for parts
with simple deformation. Hard-rolled coils can be used as raw
materials for hot-dip galvanizing plants, because hot-dip
galvanizing units are equipped with annealing lines. The weight of
hard-rolled coils is generally 6-13.5 tons, and the steel coils are
continuously rolled at room temperature for hot-rolled pickled
coils. The inner diameter is 610mm.
Cold rolled coil is hot rolled coil as raw material, at room
temperature, the highest grade EDDQ, the highest strength of
590MPa, has the advantages of high dimensional
accuracy, good surface quality, convenient processing, material
saving and so on. It is widely used in home appliance industry,
automobile industry, machinery industry,
construction industry, galvanized and other industries.
GRADE | Yield Strength RcL Mpa | Tensile strength Rm Mpa | Elongation A80mm % | Impact test |
TemºC | AkvJ |
SPCC | ≥195 | 315~430 | ≥33 | | |
Q195 | ≥195 | 315~430 | ≥33 | | |
Q235-B | ≥235 | 375~500 | ≥25 | 20 | ≥27 |
Company Profile
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.