Building Material 5-20mm Hot Rolled Steel Sheet in Coil Shipbuilding Carbon Steel Plate Sheet Coil

Short Description:

Hot rolled steel coil refers to the pressing of billets into the desired thickness of steel at high temperatures. Hot rolling is the process of rolling the steel at a high temperature, which is above the recrystallization temperature of the material. The surface of the hot-rolled strip will be oxidized because the surface will be rough and sticking in the roll;Hot rolled coils normally have large dimensional tolerances and low strength and hardness, are used for construction steel, mechanical parts for manufacturing, steel pipes and containers.

Inspection: SGS, TUV, BV, Factory Inspection

Grade: Carbon steel

Material: 60, 65Mn, 55Si2Mn, 60Si2MnA, 50CrVA,

Technique: Hot Rolled

Width: 600-4050mm

Tolerance: ±3%, +/-2mm Width: +/-2mm

Advantage: Accurate Dimension

Delivery Time: 3-15 days (according to the actual tonnage)

Port Information: Tianjin Port, Shanghai Port, Qingdao Port, etc.

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Product Detail

Product Tags

Product Detail

Product Name	Hotselling Best Quality A Large Amount Hot Rolled Steel Coil
Material	Q195/Q235/Q345/A36/S235JR/S355JR
Thickness	1.5mm~24mm
Size	3x1219mm 3.5x1500mm 4x1600mm 4.5x2438mm customized
Standard	ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS
	6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711
Grade	A53-A369, Q195-Q345, ST35-ST52
	Grade A, Grade B, Grade C
Technique	Hot rolled
Packing	Bundle, or with all kinds of colors PVC or as your requirements
Pipe Ends	Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
MOQ	1 Tons, more quantity price will be lower
Surface Treatment	1. Mill finished /Galvanized /stainless steel
	2. PVC,Black and color painting
	3. Transparent oil,anti-rust oil
	4. According to clients requirement
Product Application	1. Manufacturing of building structures,
	2. lifting machinery,
	3. engineering,
	4. agricultural and construction machinery,
Origin	Tianjin China
Certificates	ISO9001-2008,SGS.BV,TUV
Delivery Time	Usually within 10-15 days after receipt of advance payment

Main Application

Fluid and gas delivery, steel structures, and construction applications.
ROYAL STEEL GROUP ERW/Welded round carbon steel pipes offer top-quality performance and reliable supply, making them ideal for steel structures and construction projects.

Note:
1.Free sampling, 100% after-sales quality assurance, support any payment term;

2.All other specifications of round carbon steel pipe are available as per your requirement (OEM&ODM)! You will get factory price from ROYAL STEEL GROUP.

Size Chart

Thickness(mm)	3	3.5	4	4.5	5	5.5	customized
Width(mm)	800	900	950	1000	1219	1000	customized

Process of production

Billet Processing: The raw material is a continuously cast ingot or bloom. The ingots are heated to a plastically deformable temperature in the range of 1100-1250°C in a furnace after the inspection, and when the ingots reaches the temperature for plastic deformation.

Roughing: The radiant-heated ingots are rolled in the roughing mill with a series of passes (normally 3-7) to bring the thickness down from 150-300 mm to 20-50 mm. The width is also reduced to produce a medium bar.

Finishing: Following dephosphorization (to remove surface oxide scale), the intermediate bar is introduced into the finishing mill for additional high-temperature rolling (around 5-7 passes), reducing the thickness further to 1.2-25.4 mm (based on the product specification). The rolling temperature and speed are regulated to attain the desired grain refinement and mechanical properties.

Coiling: Upon completion of finishing rolling, the strip is coiled at high speed to the predetermined temperature (generally between 500 and 700°C) using a laminar cooling system. The strip is then coiled by the coiler, then the hot rolled coil forming process is complete.

Testing Processing: The completed coils are subjected to dimension check, mechanical properties testing, and surface quality check. Upon qualification they are bundled, labeled and finally stored or shipped.