Z39 BMP Rolled Steel Coil Construction Roofing Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Structure of Z39 BMP Rolled Steel Coil Construction Roofing Construction 
Description of Z39 BMP Rolled Steel Coil Construction Roofing Construction
PPGI is made by cold rolled steel sheet and galvanized steel sheets as baseplate, through the surface pretreatment (degreasing, cleaning, chemical conversion processing), coated by the method of continuous coatings (roller coating method),
and after roasting and cooling. Zinc coating: Z60, Z80, Z100, Z120, Z180, Z275, G30, G60, G90
Alu-zinc coating: AZ60, AZ80, AZ100, AZ120, AZ180, G30, G60, G90
Main Feature of Z39 BMP Rolled Steel Coil Construction Roofing Construction
1) Excellent corrosion resistance: The zinc layer provides a good protection of Pre-painted Galvanizeed Steel Sheet.
2) High heat resistance: The reflective surface of the material aids in efficiently reflecting the sunlight away and in turn reducing the amount of heat transmitted. The thermal reflectivity converts into energy savings.
3) Aesthetics: Pre-Painted Galvanized steel sheet is available in plethora of patterns and multiple sizes as per the requirements that given by our customers.
4) Versatility: can be used in the various areas.Standard seaworthy export packing: 3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.
Applications of Z39 BMP Rolled Steel Coil Construction Roofing Construction
1. Construction and building: roofing; ventilating duct; handrail; partition panel;etc.
2. Electric appliance: refrigerator; washing machine; refrigerator; DVD;etc.
3.Transportation: oil tank; road sign; etc.
4.Agriculture:barn; etc.
5.Others:vending machine; game machine; etc. 
Specifications of Z39 BMP Rolled Steel Coil Construction Roofing Construction
| Classified symbol | Yield Point Minimum N/mm2 | Tensile Strength Minimum | Elongation Minimum % | Application | ||||
| N/mm2 | Nominal Thickness mm (t) | |||||||
| JIS | Yogic | 0.25-0.4 | 0.4-0.6 | 0.6-1.0 | 1.0-1.6 | |||
| G3312 | specification | |||||||
| CGCC | CGCC | -205 | -270 | -20 | -21 | -24 | -24 | Commercial |
| CGCD | CGCD | --- | 270 | --- | 27 | 31 | 32 | Drawing |
| --- | CG340 | 245 | 340 | 20 | 20 | 20 | 20 | Structural |
| CGC400 | CG400 | 295 | 400 | 16 | 17 | 18 | 18 | Structural |
| CGC440 | CG440 | 335 | 440 | 14 | 15 | 16 | 18 | Structural |
| CGC490 | CG490 | 365 | 490 | 12 | 13 | 14 | 16 | Structural |
| CGC570 | CG570 | 560 | 570 | --- | --- | --- | --- | Structural |
| ASTM Designation | Yield Point Minimum | Tensile Strength Minimum | Elongation Minimum % | Application | Q/BQB 445-2004(China standard) | ASM A653/A653M | JISG 3312 | |
| ksi(MPa) | ksi(MPa) | TDC51D+Z | (CS TYPE A+Z) | CGCC | ||||
| A653(M)-99 CS TYPE A,B,C | --- | --- | --- | Commercial | TDC52D+Z | CGCD | ||
| A653(M)-99 FS | --- | --- | --- | Lock Forming | TS250GD+Z | (G250+Z) | - | |
| A653(M)-99 DS | --- | --- | --- | Drawing | TS300GS+Z | (G300+Z) | CGC 400 | |
| A653(M)-99 SS Grade33(230) | 33(230) | 45(310) | 20 | Structural | TS350GD+Z | (G350+Z) | CGC490 | |
| A653(M)-99 SS Grade37(255) | 37(255) | 52(360) | 18 | Structural | TS550GD+Z | (G550+Z) | CGC570 | |
| A653(M)-99 SS Grade40(275) | 40(275) | 55(380) | 16 | Structural | ||||
| A653(M)-99 SS Grade50(345) | 50(345) | 65(450) | 12 | Structural | ||||
| A653(M)-99 SS Grade80(550) | 80(550) | 82(570) | --- | Structural | ||||
FAQ of Z39 BMP Rolled Steel Coil Construction Roofing Construction
We have organized several common questions for our clients，may help you sincerely：
1. How Can I Visit There?
Our company is located in Tianjin City, China, near Beijing. You can fly to Tianjin Airport Directly. All our clients, from home or aboard, are warmly welcome to visit us!
2. How Can I Get Some Sample?
We are honored to offer you sample.
3. Why choose CNBM?
1, ISO, BV, CE, SGS approved.
2, Competitive price and quality.
3, Efficient service team online for 24 hours.
4, Smooth production ability(50000tons/month) .
5, quick delivery and standard exporting package.
6, Flexible payment with T/T, L/C, Paypal, Kunlun bank, etc .
- Q:What is the role of steel billets in the manufacturing of automotive transmission systems?
- The manufacturing of automotive transmission systems heavily relies on steel billets, which serve as essential raw material forms of steel. These billets act as the foundation for shaping and forming various components of the transmission system. The production of gears, shafts, and other critical transmission components is one of the primary purposes of steel billets in the manufacturing process. These billets are either forged or machined to achieve the desired shape, strength, and dimensional accuracy necessary for these components. By utilizing steel billets, manufacturers ensure that these parts possess the required strength, durability, and resistance to wear and tear, which are crucial for the proper functioning of the transmission system. Additionally, steel billets also find application in the manufacturing of transmission casings. These casings serve as protective housing for the internal components of the transmission system. To create these casings, steel billets are cast or molded into the desired shape, guaranteeing that they possess the necessary strength and rigidity to withstand the forces and stresses experienced by the transmission system. Furthermore, the use of steel billets allows for the customization and optimization of transmission system components. Manufacturers have the freedom to select specific grades of steel billets based on their desired properties, such as hardness, toughness, or corrosion resistance. This flexibility enables the production of transmission systems that meet the specific requirements of different automotive applications, whether it involves high-performance vehicles or heavy-duty trucks. In conclusion, steel billets play a vital role in the manufacturing of automotive transmission systems. They provide the raw material needed to create gears, shafts, casings, and other components. Steel billets ensure the strength, durability, and customization potential necessary to produce reliable and efficient transmission systems for various automotive applications.
- Q:What are the different types of steel billet rolling techniques?
- The manufacturing process utilizes various steel billet rolling techniques to shape the steel into desired forms and dimensions. Among the commonly employed techniques are the following: 1. Hot rolling: This technique, widely used, involves heating the steel billet to high temperatures and passing it through a series of rolling mills. By reducing thickness and increasing length, hot rolling achieves the desired shape. 2. Cold rolling: Steel billets are rolled at room temperature in this technique. It yields steel with precise dimensions and a smooth surface finish. It is commonly used for producing steel sheets, strips, and bars. 3. Ring rolling: Seamless steel rings are produced using this technique. The steel billet is heated and then rolled between two rotating rolls that gradually shape the billet into a ring. Bearings, gears, and flanges are commonly produced using ring rolling. 4. Continuous casting and rolling: In this technique, molten steel is continuously cast into billets, which are then directly rolled into desired shapes. It eliminates the need for separate casting and rolling processes, making it a more efficient and cost-effective technique. 5. Cross-rolling: This technique is employed to produce steel billets with non-uniform cross-sections. The billet is rolled between two rolls with different profiles, resulting in a billet of the desired shape. 6. Skew rolling: Skew rolling is specifically used to produce steel balls utilized in various industries like mining and cement production. The steel billet is rolled between two rotating rolls at an angle, creating a helical motion that forms the ball shape. These examples represent only a fraction of the available steel billet rolling techniques. Each technique offers unique advantages and is selected based on the desired final product and manufacturing requirements.
- Q:What are the main uses of steel billets?
- Steel billets are semi-finished steel products that are commonly used in various industries. The main uses of steel billets include: 1. Steel production: Steel billets serve as the starting point for the production of various steel products. They are used in the manufacturing of bars, rods, wire, and structural sections, among other steel products. 2. Construction industry: Steel billets are extensively used in the construction industry for the production of beams, columns, and other structural elements. These billets are often rolled into specific shapes and sizes to meet the demands of construction projects. 3. Automotive industry: Steel billets are used in the automotive industry for the production of various components, such as crankshafts, camshafts, axles, and gears. These billets are further processed to form the desired shapes and sizes required for these components. 4. Machinery and equipment manufacturing: Steel billets find applications in the manufacturing of machinery and equipment. They are used to produce parts and components that require high strength and durability, such as gears, shafts, and bearings. 5. Pipe and tube manufacturing: Steel billets are an essential raw material used in the production of pipes and tubes. They are heated and pierced to form seamless tubes or rolled and welded to produce welded tubes. These tubes find applications in various industries, including oil and gas, construction, and automotive. 6. Forging industry: Steel billets are widely used in the forging industry for the production of forged components, such as crankshafts, connecting rods, and valves. The billets are heated and then shaped using pressure and heat to achieve the desired shape and strength. 7. Shipbuilding industry: Steel billets are utilized in the shipbuilding industry for the construction of ship hulls, frames, and other structural components. These billets provide the necessary strength and durability required for marine applications. In summary, steel billets serve as the raw material for the production of a wide range of steel products used in various industries, including construction, automotive, machinery manufacturing, pipe and tube manufacturing, forging, and shipbuilding.
- Q:What are the different joining methods used for steel billets?
- The different joining methods used for steel billets include welding, bolting, and adhesive bonding.
- Q:What are the different methods of steel billet surface polishing?
- There are several methods of steel billet surface polishing, including mechanical polishing, chemical polishing, electropolishing, and abrasive blasting. Mechanical polishing involves using abrasive materials and machinery to remove surface imperfections and create a smooth finish. Chemical polishing utilizes chemical solutions to dissolve and remove surface impurities, resulting in a polished surface. Electropolishing involves the use of an electric current to dissolve and remove surface material, resulting in a smooth and shiny finish. Abrasive blasting uses high-pressure air or water to propel abrasive particles onto the surface, removing contaminants and creating a polished appearance.
- Q:What is the typical composition of a steel billet?
- The typical composition of a steel billet consists of iron as the primary element, along with a small percentage of carbon, manganese, silicon, and trace amounts of other elements such as sulfur and phosphorus.
- Q:What are the challenges in welding steel billets?
- There are several challenges that can arise when welding steel billets. One of the main challenges is ensuring proper heat distribution during the welding process. Steel billets are often large and thick, which can make it difficult to evenly distribute heat throughout the material. This can result in inconsistencies in the weld, leading to weak spots or even failure of the joint. Another challenge is the potential for distortion and warping of the billet during the welding process. As heat is applied to the steel, it can cause the material to expand and contract, leading to unwanted changes in shape and dimensions. This can be particularly problematic when welding large or complex structures, as maintaining the desired shape and dimensions becomes critical. Additionally, steel billets can contain impurities and contaminants that can affect the quality of the weld. These impurities, such as sulfur, phosphorus, and other elements, can lead to the formation of brittle zones or other defects in the weld. Proper cleaning and preparation of the billet surface, as well as using appropriate welding techniques and filler materials, are necessary to mitigate these challenges. Furthermore, the high carbon content often found in steel billets can make them prone to cracking during the welding process. Carbon acts as a hardening agent in steel and can increase its susceptibility to cracking, especially if proper preheating and post-weld heat treatment procedures are not followed. Controlling the cooling rate and implementing stress-relieving techniques are essential in preventing cracking and ensuring the integrity of the weld. Lastly, the sheer size and weight of steel billets can present logistical challenges during the welding process. Handling and positioning these heavy objects require specialized equipment and skilled operators to ensure safety and accuracy. Additionally, the need for precise alignment and fit-up can be more challenging with large billets, requiring careful planning and execution. In conclusion, welding steel billets poses challenges such as heat distribution, distortion and warping, impurities and contaminants, carbon-induced cracking, and logistical issues. Overcoming these challenges requires expertise, proper equipment, and adherence to appropriate welding techniques and procedures.
- Q:What are the main factors affecting the fatigue strength of stainless steel billets?
- The fatigue strength of stainless steel billets can be influenced by various factors. Let's explore some key aspects. To begin with, the composition of the stainless steel plays a vital role in determining its fatigue strength. Stainless steel alloys containing higher proportions of elements like chromium, molybdenum, and nickel tend to exhibit enhanced fatigue strength. These alloying elements bolster the material's corrosion resistance and ability to withstand cyclic loading, resulting in improved fatigue performance. Moving on, the microstructure of the stainless steel billet is another crucial factor. The presence of defects or impurities within the microstructure can act as stress concentration points, rendering the material more susceptible to fatigue failure. Hence, it is imperative to ensure a well-controlled and homogeneous microstructure to achieve higher fatigue strength. Moreover, the surface condition of the stainless steel billet significantly impacts its fatigue strength. Surface irregularities, such as scratches, nicks, or pitting, act as stress raisers and can initiate cracks under cyclic loading. Employing appropriate surface treatment techniques like grinding, polishing, or passivation can minimize these defects and enhance the material's fatigue resistance. Additionally, the manufacturing process and heat treatment of stainless steel billets can influence their fatigue strength. Processes like forging, rolling, or extrusion may introduce residual stresses that can decrease fatigue strength. Hence, meticulous control of the manufacturing process and the use of suitable heat treatment techniques like annealing or quenching are crucial to optimize the fatigue performance of stainless steel billets. Last but not least, operating conditions, including stress levels, temperature, and environmental factors, also impact the fatigue strength of stainless steel billets. Higher stress levels or elevated temperatures can expedite fatigue crack initiation and propagation, resulting in reduced fatigue life. Similarly, exposure to corrosive environments can accelerate localized corrosion fatigue, leading to premature failure. Therefore, understanding the intended operating conditions and selecting the appropriate stainless steel grade and surface protection are essential to maximize fatigue strength and prolong the service life of stainless steel billets.
- Q:How are steel billets used in the manufacturing of structural components?
- The manufacturing of structural components heavily relies on steel billets, which are an essential raw material. These billets, usually square or round in shape, are produced through continuous casting, a process that solidifies molten steel into a semi-finished product. After the formation of steel billets, they undergo further processing using different techniques like hot rolling, forging, or extrusion. Hot rolling includes heating the billets and passing them through a sequence of rollers to shape them into desired profiles, such as beams, channels, or angles. This method is crucial for achieving the necessary dimensions, strength, and surface finish. Forging is another technique employed with steel billets, involving heating the billets and shaping them using compressive forces. It is primarily used for manufacturing components that require enhanced strength and durability, like crankshafts, connecting rods, or turbine blades. Extrusion, on the other hand, is a specialized process that utilizes heated billets to create complex shapes by forcing them through a die. This technique is commonly utilized in the production of tubular components, such as pipes, tubes, or hollow sections. These components are extensively used in the construction of structures like bridges, buildings, or infrastructure. Steel billets play a critical role in the manufacturing of structural components by providing the necessary raw material that can be shaped using various fabrication techniques. Their adaptability and versatility make them an indispensable component in the construction industry, ensuring that buildings and structures possess the required strength and durability to withstand different loads and environmental conditions.
- Q:What is the lifespan of steel billets?
- The lifespan of steel billets varies depending on various factors such as storage conditions, environmental exposure, and usage. However, with proper handling and maintenance, steel billets can last for several years to decades.
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Z39 BMP Rolled Steel Coil Construction Roofing Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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