‹
›
Cold rolled steel coils
Cold rolled steel coils are often used in the steel industry and are different from hot rolled coils. It refers to a steel strip that is directly rolled into a certain thickness with a roll at room temperature and rolled into a whole roll with a winder. Compared with hot-rolled coils, cold-rolled coils have a brighter surface and higher finish, but generate more internal stress, and are often annealed after cold-rolling.
// Product Description //
The cold-rolled coil products are accurate in size, uniform in thickness, and the thickness difference of the coils generally does not exceed 0.01-0.03 mm or less, which can meet the requirements of high-precision tolerances.2.It is possible to obtain extremely thin strips that cannot be produced by hot rolling (up to 0.001 mm or less).3.The surface quality of cold-rolled products is superior, there are no defects such as pitting, hot-pressed iron oxide,etc.,which are often found in hot-rolled coils, and coils of different surface roughness (glossy or hemp) can be producedaccording to user requirements. Rough surface, etc., to facilitate the processing of the next process.4.The cold rolled plate has a good mechanical properties and process properties (such as higher strength, lower yield limit, good deep drawability, etc.).5.High-speed rolling and full-continuous rolling can be realized with high productivity.
Trusted Global Clients
Our products and services cover multiple countries and regions.
// Factory Tour //
Hongke
WHY
CHOOSE US
Wuxi Hongke Special Steel Co., Ltd. is a one-stop specialty steel supplier integrating R&D, production, deep processing, and international trade, delivering fully certified, standard-compliant solutions for global infrastructure and industrial projects.
Production Capacity
Full-process in-house production including hot rolling, cold rolling, galvanizing, pipe making, and section steel forming, supported by comprehensive physical & chemical testing instruments.
Customization Capabilities
Wide product range covering coils, sheets, bars, pipes, sections, and profiles, with customization available according to GB, ASTM, EN, JIS, AS, and GOST standards.
Authoritative Certification
Certified with ISO9001, ISO14001, CE, API 5L/5CT, ASTM and EN, ensuring stable and internationally compliant product quality.
Application Areas
Products are widely used in construction, machinery manufacturing, steel structures, energy transmission, auto parts, hardware, shipbuilding, and infrastructure projects.
// Products Recommended //
![SGCC Corrugated Sheet]( "SGCC Corrugated Sheet")
SGCC Corrugated SheetCharacteristics：Weather proof; heating insulation; fireproof; anti-rust; sound insulation; long life span: more than 20 years. Corrosion Resistance: the aluzinc coating surface protects the base steel not only by providing barrier to corrosion elements, but also by the sacrificial nature of the coating.![DX53D+AZ Galvalume Steel Sheet]( "DX53D+AZ Galvalume Steel Sheet")
DX53D+AZ Galvalume Steel SheetThrough electrolytic galvanizing, a uniform and dense zinc layer is finally formed on the surface of the steel, but the mechanical properties of the material are still maintained. Electrogalvanized steel is usually sold in coil or sheet form. EG coil is a kind of material that can be cut, slitted and profiled for other purposes. The steel grade of galvanized steel consists of base metal grade, galvanized (E), galvanized layer type and weight. The electro-galvanized products based on SPCC, SPCD, SPCE, SPCF and SPCG are named SECC, SECD, SECE, SECF and SECG respectively.![904L Stainless Steel Bar/Rod]( "904L Stainless Steel Bar/Rod")
904L Stainless Steel Bar/RodStainless steel is a steel alloy with increased corrosion resistance compared to carbon/alloy steel.
Common alloying ingredients include chromium (usually at least 11%), nickel, or molybdenum. Alloy content often is on the order of 15-30%.
Common applications for stainless steel include food handling/processing, medical instruments, hardware, appliances, and structural/architectural uses.![201 Stainless Steel Strip]( "201 Stainless Steel Strip")
201 Stainless Steel StripStainless steel strip is an extension of ultra-thin stainless steel plate, and is also a kind of steel plate used in industry. However, unlike ordinary steel plates, stainless steel strip has a longer shape, and its scope of use is also different from ordinary steel plates. At present, there are many varieties of stainless steel strips, and there are also many different production specifications. Different stainless steel strips use different categories. Cold rolled strip is a specially treated stainless steel strip product. It is another industrial steel strip product, which is made of stainless steel strip as the basic material and is processed by cold rolling mill at room temperature. The rolled strip has excellent characteristics such as smooth surface, flatness, high dimensional accuracy and good mechanical functions, and is often processed into rolls and coated steel plates. Cold rolled strip is widely used in tractor, car and other industrial manufacturing. Hot rolled strip is another kind of stainless steel strip, which has low hardness, easy processing, good ductility and other excellent characteristics, so it is often used as a thin plate.![Q235 Carbon Steel Plate]( "Q235 Carbon Steel Plate")
Q235 Carbon Steel PlateCarbon steel, on the other hand, has far lower chromium levels, and is instead a carbon-iron alloy with only a few other materials, if any, as part of its makeup. As a result, it can be referred to as ‘low-alloy’ steel. Both stainless steel and carbon steel feature this basic composition, but carbon steel can be defined by its carbon content. This is normally around 2-2.5%, however this often varies. Though susceptible to rust unlike stainless steel, carbon steel is often cheaper and has its own varying mechanical properties based on carbon content.![ASTM A36 Carbon steel bar/rod]( "ASTM A36 Carbon steel bar/rod")
ASTM A36 Carbon steel bar/rodSteel Grade：Q195,Q235,Q345,45#, S20C, SAE1010,SAE1020.SAE1045,EN8,EN 19fC45,CK45,SS400 etc
Standard：ASTM A615Gr40/60,BSS4449 Gr460B,500B etc.
Diameter: 6mm-1200mm.
Length: 3000mm-12000mm or as client's request
Tolerance: +0.5mm/-0(dia),+5mm/-0(L)
Heat treatment: Normalized / Annealed / Quenched / tempered
Surface: black,mill,polished,brush,etc
Test: Ultrasonic test according to SEP 1921-84 G3 C/c
Application: Widely used in construction industry for reinforcing concret(Express way; office building, Bridge etc) Trasportation By sea(20' 40' container), parts of larger cross-sections, crankshafts, gears.![Z275 Galvanized Steel Coil]( "Z275 Galvanized Steel Coil")
Z275 Galvanized Steel CoilGalvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface.
It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.![Pattern Printing / Pattern Color Coating Coil]( "Pattern Printing / Pattern Color Coating Coil")
Pattern Printing / Pattern Color Coating CoilColor coated is in the continuous unit to cold rolled strip steel, galvanized strip steel (electric galvanized and hot galvanized) as the base plate, after surface pretreatment (degreasing and chemical treatment), with the method of roller coating, coated with a layer or multiple layers of liquid coating, after baking and cooling plate. The coated steel plate has light weight, beautiful appearance and good anti-corrosion performance, and can be directly processed, it provides a new raw material for the construction industry, shipbuilding industry, vehicle manufacturing industry, furniture industry, electrical industry and so on. It has played a good effect of replacing wood with steel, efficient construction, energy saving and pollution prevention.![316Ti Stainless Steel Coils]( "316Ti Stainless Steel Coils")
316Ti Stainless Steel CoilsStainless steel is a steel alloy with increased corrosion resistance compared to carbon/alloy steel.
Common alloying ingredients include chromium (usually at least 11%), nickel, or molybdenum. Alloy content often is on the order of 15-30%.
Common applications for stainless steel include food handling/processing, medical instruments, hardware, appliances, and structural/architectural uses.![DC01 Carbon Steel Coils]( "DC01 Carbon Steel Coils")
DC01 Carbon Steel CoilsStandard ：ASTM EN DIN GB ISO JIS BA ANSI
Steel Grade： Q195, Q215,Q235,Q345,ST37, A36,45# ,16Mn, SPHC,SGCC,CGCC
Thickness：0.2-100mm or Customized
Width ：1250-2500mm,or as Your Request ( regular width 1000mm, 1250mm, 1500mm )
Coil ID ：508mm or 610mm
Coil Weight ：3 - 8 ton or as Your Request
Technique： Hot rolled cold rolled as Your Request
Surface ：Treatment Bare,Black,Oiled,Shot Blasted,Spray Paint,Coated,Galvanized,or as Your Request
Package ：Standard Export packing(Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet)![A106 Carbon Steel Pipe]( "A106 Carbon Steel Pipe")
A106 Carbon Steel PipeProduct Name : Carbon Steel Pipe
Material: A53 Gr.B,A36,ST52,ST35,ST42,ST45,X42,X46,X52,X60,X65X70
Standard： API 5L,ASTM A106 Gr.B,ASTM A53 Gr.B,ASTM A179/A192,ASTM A513,ASTM A671,ASTM A672,BS EN 10217,BS EN10296,BS EN 39,BS6323,DIN, EN10217
Certificates ：API 5L,ISO9001,SGS,BV,CCIC
Outer Diameter ：15mm-1200mm
Length :1m,4m,6m,8m,12m according to buyer's request
Surface Treatment :black paint,varnish,oil,galvanized,anti-corrosion coated
Marking: Standard marking,or according to your request.Marking Method:Spray white paint
End Treatment: Plain End/Bevelled End/Grooved End/Threaded End With Plastic Caps![2507 Stainless Steel H Steel]( "2507 Stainless Steel H Steel")
2507 Stainless Steel H SteelH-beam is a more optimized cross-sectional area distribution, more reasonable than the economic section of high-efficiency profiles, because of its section and the English letter "H" the same name. Since all parts of the H-beam are arranged at right angles, the H-beam has the advantages of strong bending resistance, simple construction, cost saving and light structure in all directions, and has been widely used.![1060 Industrial Aluminum Foil]( "1060 Industrial Aluminum Foil")
1060 Industrial Aluminum Foil(1) Aluminum foil surface is clean, sanitary, no bacteria or micro-organisms can not grow on its surface.
(2) aluminum foil is a non-toxic packaging material, it can directly contact with food without any harm to human health.
(3) aluminum foil is a kind of tasteless odorless packaging material, will not make the packaging of food have any peculiar smell.
(4) aluminum foil itself is not volatile, it itself and packaged food will never dry or shrink.
(5) at high temperature or low temperature, aluminum foil will not have the phenomenon of oil permeability.
(6) aluminum foil is a kind of opaque packaging material, so it is a kind of good packing material for the products of sunlight irradiation.
(7) aluminum foil has good plasticity, so it can be used to pack all kinds of products. Can also cause any shape containers.![309S Stainless Steel Plate]( "309S Stainless Steel Plate")
309S Stainless Steel Platestainless steel plate is one of the most popular steel plates across the globe for a mix of its favorable characteristics. stainless steel is mainly composed of iron, chromium and nickel. This combination leads to outstanding oxidation resistance and corrosion resistance of stainless steel plates. The stainless steel plate has a smooth surface, high plasticity, toughness and mechanical strength, and is resistant to corrosion by acids, alkaline gases, solutions and other media. Due to its good versatility and relatively low cost, stainless steel plate is widely used in food processing equipment, building materials, automobile parts and other fields.![430 Stainless Steel Coils]( "430 Stainless Steel Coils")
430 Stainless Steel CoilsStainless steel is a steel alloy with increased corrosion resistance compared to carbon/alloy steel.
Common alloying ingredients include chromium (usually at least 11%), nickel, or molybdenum. Alloy content often is on the order of 15-30%.
Common applications for stainless steel include food handling/processing, medical instruments, hardware, appliances, and structural/architectural uses.![430 Stainless Steel Pipe/Tube]( "430 Stainless Steel Pipe/Tube")
430 Stainless Steel Pipe/TubeProduct Type: Round tube/pipe,square tube/pipe,rectangular tube/pipe
Material: Stainless steel,austenitic stainless steel
Grade: 201 304 304L 304H 309S 310S 316 316L 316Ti 317 317L 321 321H 347 347H 904L 2304 2205 S31803 S32750 253MA 254SMo
Standard: ASTM A312 A376 A213 A249 JIS G3459 G3463 DIN17440 GB/T14976 BG13296
Technique: Cold Drawn Hot Rolled Annealing Pickling
Feature: High temperature resistance,corrosion resistance
Quality Control: Mill Test Report will be provided with the goods,any inspection from third party acceptable
Used: Widely used in chemical industry,machinery,electronics,electric power,textile,rubber,food,medical-equipment,aviation,aerospace,communications, petroleum and other industrial field.![DX53D+Z Galvanized Steel Plate]( "DX53D+Z Galvanized Steel Plate")
DX53D+Z Galvanized Steel PlateHot-dip galvanized steel sheet. The thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet;
Electro-galvanized steel sheet. This galvanized steel sheet made by electroplating has good processability. But the coating is thin and the corrosion resistance is not as good as hot-dip galvanized sheet;![SGCD3 Galvanized Steel Coil]( "SGCD3 Galvanized Steel Coil")
SGCD3 Galvanized Steel CoilGalvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface.
It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.![DN40 Galvanized Round pipe]( "DN40 Galvanized Round pipe")
DN40 Galvanized Round pipeProduct name: Galvanized steel tube/pipe
Main standard: GB,JIS,DIN,AISI,ASTM
Length: AS customer's required
Surface: Mild steel plain finish, hot dip galvanized, pre galvanized, color coated, ect.
Diameter: 0.2-2000mm As customer's required
Shipment time: Stock or within 7-20 workdays according to quantity,after receiving deposit or L/C
Price term: T/T,L/C,Western Union,Paypal,Apple Pay,Google Pay,D/A,D/P,MoneyGram
Weight Calculation: Weight(kg)=Thickness(mm)*Width(m)*Length(m)*Density(7.85g/cm3)
Size Tolerance: ±1%-3%![Hot-dip Galvanlized Steel Wire]( "Hot-dip Galvanlized Steel Wire")
Hot-dip Galvanlized Steel WireHot-dip galvanized iron wire is made with choice low carbon steel wire, through wire drawing, acid washing and rust removing, annealing and coiling. It's mainly used in construction, handicrafts, woven wire mesh, express way fencing mesh, packaging of products and other daily uses.
Size range: BWG 8-BWG 36
Zinc coat: 30-275 g/m2
Tensile strength: 350-550N/mm2
Elongation: 10%
Packing: 1-500kgs/coil, coil with plastic cloth inside and hessian outside or weave outside
Get real-time quotes
Interested? Leave your contact details.