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Cold-Rolled Steel Coil: any size coil by request A36, A283, A514, A572, A573, A588, A633, A656, A709

Steel Coil
Hot-Rolled Steel Coil: any size coil by request
Cold-Rolled Steel Coil: any size coil by request
A36, A283, A514, A572, A573, A588, A633, A656, A709,
SA36, SA283, SA514, SA572, SA573, SA588, SA633, SA656, SA709
EN10025-2, EN10025-3, EN10025-4, EN10025-6
JIS G3101, JIS G3106, DIN 17100, DIN 17102
GB/T700, GB/T1591, GB/T16270
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Product Description

Derun supplies a wide range of cold-rolled and hot rolled steel coils according to China Industrial Standards, the standards of other countries and our own strict standards.

Cold-rolled steel coils are widely applied to automobiles, electrical appliances, steel office equipment, containers, and numerous other products closely connected to pour daily lives.

Hot-rolled steel coils are applied to wide range of uses such as, automobiles, electrical appliances, construction materials, steel silos, containers and steel pipes, and receive high assessment from our overseas customers for its supreme quality.

7

Carbon and Low-alloy High-strength Steel Coil

ASTM A36/A36M
ASTM A283/A283M
ASTM A514/A514M


ASTM A572/A572M
ASTM A573/A573M
ASTM A588/A588M


ASTM A633/A633M
ASTM A656/A656M
ASTM A709/A709M


ASME SA36/SA36M
ASME SA283/SA283M
ASME SA514/SA514M


ASME SA572/SA572M
ASME SA573/SA573M
ASME SA588/SA588M


ASME SA633/SA633M
ASME SA656/SA656M
ASME SA709/SA709M


EN10025-2
EN10025-3
EN10025-4


EN10025-6
JIS G3101
JIS G3106


DIN 17100
DIN 17102
GB/T700


GB/T1591
GB/T16270


Pipeline Steel Coil

API Spec 5L PSL1
API Spec 5L PSL2
GB/T14164-2013 PSL1


GB/T14164-2013 PSL2
JIS G3132-2011
API 5CT-2011


Shipbuilding Steel Coil

ASTM A131/A131M
ABS Ship Class
CCS Ship Class


LR Ship Class
DNV Ship Class
BV Ship Class


GL Ship Class
RINA Ship Class
KR Ship Class


NK Ship Class
EN10225
API Spec 2H


Weather Resistant Steel Coil

Q/HG024 JIS G3125 2004
GB/T1979
GB/T18982-2003


EN10025-5
EN10155-1993
ASTM A588


ASTM A242/A242M
ASTM A285/A285M-3


Hot Rolled Steel Coil for Oil Casing

API 5CT

Hot Rolled Steel Coil for Automobile Frame

BS EN 10149-2
BS EN 10149-3
DIN 17102


Q/BQB 310-2009 or JIS G3113-2006
GB/T 3273-2005
Q/BQB 310-2009 or SEW 092


Steel Coil for Gas Cylinders and Gas Vessels

BS 5045
DIN 17155
EN 10120


JIS G3116
Q/BQB 329-2009


We committed to meet our customers’ requirements of quality as well as on-time delivery and offer technical consultations and services for applications of our steel products.

Difference Between Hot Rolled and Cold Rolled Steel Coil

Customers often ask us about the differences between hot rolled coil and cold rolled coil. There are some fundamental differences between these two types of metal. These differences relate to the ways these metals are processed at the mill, and not the product specification or grade.

Hot-Rolled Coil
  • Hot rolling is a process at the steel mill which involves rolling steel above its recrystallization temperature, typically over 1700° Fahrenheit.

  • Steel that is heated above the recrystallization temperature can be shaped and formed more easily, which allows the steel to be made in much larger sizes.

  • Cold rolled steel is more expensive than hot rolled steel in most circumstances. This is because hot rolled steel is manufactured without any delays in the process which require reheating the steel.

  • When the steel cools off it will shrink slightly thus giving less control on the size and shape of the finished product when compared to cold rolled.

Cold-Rolled Coil
  • Cold rolled steel is processed further in cold reduction mills, where the material is cooled followed by annealing and/or tempers rolling.

  • The cold reduction process will produce steel with closer dimensional tolerances and a wider range of surface finishes.

  • The term cold rolled is mistakenly used on all products, when actually the product name refers to the rolling of flat rolled sheet and coil products.



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