LSAW Submerged Arc Welding Carbon Steel Pipe for Piling Use LSAW steel pipe (Longitudinally Submerged Arc Welding abbreviated as LSAW) is a professional expression term for LSAW steel pipe. It uses a single medium and thick plate as the raw material, and the steel plate is pressed (rolled) in a mold or forming machine into a tube blank. Submerged arc welding method and expanded diameter to produce pipes.   Material of LSAW Steel Pipe     Pipe Standard API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70 ASTM A53 ASTM 572 ASTM A252 AN/NZS 1163 AN/NZS 1074 EN10219-1 EN10217-1 Size OD: 219mm-1625mm WT: 7-50mm LENGTH: 5.8/6/11.8/12m   Applications: LSAW pipe is used to convey low-pressure liquid or high-pressure petroleum or natural gas and can also be used widely in structural supports or foundations. Base on its advantage of high reliability and safety performance, the LSAW pipe is widely used in various pipelines engineering and construction, even under the most severe condition, and also can be used in engineering of chemical industry, electric power, irrigation, construction and piling etc. LSAW pipes for oil and gas pipeline The advantage for the LSAW type is that they could produce more thick wall thickness of pipes, maximum to 120 mm.   Main features of LSAW steel pipe: 1) The steel pipe has a longitudinal weld, and the inner and outer welds are all welded by submerged arc welding. 2) After the overall mechanical expansion treatment, the internal stress of the steel pipe is small and evenly distributed, which can effectively prevent stress corrosion cracking, has high dimensional accuracy, and is convenient for on-site welding construction. 3) Pre-welding and finishing welding process is adopted, the welding process is stable, and the welding seam quality is high. 4) Welding seam is easy to realize non-destructive flaw detection in the production process and non-destructive flaw detection in the field during use. 5) The range of product specifications is large, which can produce steel pipes with small diameter and large wall thickness as well as large diameter and large wall thickness.

America Standard ASTM A588 Corten Steel Plate Piling and Structural Steel Truss Bridge ASTM A588 covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings where savings in weight or added durability are important. ASTM A588 is a high strength low-alloy structural steel specification with higher strength and improved atmospheric corrosion resistance for structural steel shapes such as angles, channel and beams, as well as steel plate and bars. ASTM A588 is primarily used for: Pedestrian Bridges Highway Bridge Girders and other bridge components Shipbuilding Tanks Railcars and Containers Fencing Sculptures The A588 specification is intended primarily for use in unpainted applications, where savings in weight or added durability is important along with the longer life cycle due to its corrosion resistant properties and/or to achieve an aesthetically pleasing appearance.   The atmospheric corrosion resistance of A588 is substantially better than that of carbon steels such as A36 and A572-50 with or without copper addition. When properly designed and exposed to the atmosphere, A588 is suitable for many applications in the unpainted condition.   ASTM A588 has a 50ksi minimum yield strength and a 70ksi minimum tensile strength. Classification: 1. High weathering steel High weather resistance structural steel is to add a small amount of copper, phosphorus, chromium, and nickel elements to the steel to form a protective layer on the surface of the metal collective to improve the performance of the steel against atmospheric corrosion. You can also add a small amount of molybdenum, niobium, Elements such as vanadium, titanium and zirconium can refine the grains, improve the mechanical properties of steel, improve the strength and toughness of steel, reduce the brittle transition temperature, and make it have better resistance to brittle fracture. 2. Weathering steel for welding structure The elements added to the steel grade, except for phosphorus, are basically the same as high weather resistance structural steels, and their functions are the same and improve welding performance. Features: Weathering steel has the characteristics of toughness, plastic stretching, forming, welding and cutting, wear resistance, high temperature resistance and fatigue resistance of high-quality steel; weather resistance is 2-8 times that of ordinary carbon steel, and the coating performance is 1.5 of ordinary carbon steel. -10 times, the coating performance is 1.5-10 times that of ordinary carbon steel, can be used for thin coating, bare coating or simplified coating. This steel has the characteristics of anti-rust, corrosion resistance, extended life, thinning and consumption reduction, labor-saving and energy-saving, which benefits component manufacturers and users. Weathering steel has better corrosion resistance in the atmosphere. Weathering steel can be thinned, exposed or simply painted. The steel system with corrosion resistance, life extension, labor saving, consumption reduction and upgrade is also a new mechanism, new technology and new process that can be integrated into modern metallurgy, so that it can continue to develop and innovate. Steel system. Advantages: Weathering steel is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the characteristics of steel strength, ductility, forming, welding, abrasion, high temperature, fatigue, etc.; weather resistance is 2~8 of ordinary carbon steel The coating performance is 1.5~10 times that of ordinary carbon steel, which can be used in thinner, bare or simplified coating. The steel has the characteristics of rust resistance, corrosion resistance and longevity of components, thinning and consumption reduction, and labor-saving and energy-saving characteristics, which benefit component manufacturers and users. Application: The use of high weather resistance structural steel is better than weather resistance steel for welded structure because of its atmospheric corrosion resistance. It is mainly used for bolting, riveting and welding structural parts for vehicles, containers, buildings, towers and other structures. When used as welded structural parts, the thickness of the steel should not be greater than 16mm. The welding performance of weathering steel for welded structure is better than that of high weathering steel, and it is mainly used for welded structural parts for bridges, buildings and other structures.

High Tensile Fabric PVDF Membrane Structural Sports Area Easy Installation Membrane structure, also called tensile membrane structure, is the most representative architectural form in the 21st century. It breaks the pattern of pure linear architectural style, with its unique beautiful curved surface shape, the perfect combination of conciseness, crispness, rigidity and softness, strength and beauty, and at the same time provides architectural designers with greater imagination and creative space. Specifications: Item Specification Application Sports area, outdoor shade, permanent tent, swimming pool cover OEM Item Size, color, shape, material are all acceptable. Membrane TypeApplication 100% polyester base fabric, optional PTFE or PVDF ,ETFE coated Support Frame GB Q235 steel or galvanized steel Color Optional, such as white, red, grey, yellow, blue, green, etc. Warranty Under normal circumstances: frame:one year, membrane material:10-20 years OEM case: could be extended according to customer requirements Membrane structure is a structural system that combines architecture and structure. It uses high-strength flexible film materials and auxiliary structures to generate certain pre-tension stresses in a certain way and form a certain spatial shape under stress control as a covering structure. Or the main body of the building, and a type of narrow structure with sufficient rigidity to resist external loads. Membrane structure is a new type of building structure developed in the middle of the 20th century. It breaks the pattern of pure linear architectural style. With its unique beautiful curved shape, it is simple, crisp, rigid and soft, and the combination of strength and beauty. Refreshing feeling, while providing architectural designers with greater imagination and creative space. Membrane structure has a strong sense of time and representativeness. It is a multi-disciplinary cross-application project integrating architecture, structural mechanics, fine chemical engineering, material science, and computer technology. It has a high technical content and artistic appeal. Its curved surface Can be arbitrarily changed according to the architect's design needs. Combined with the overall environment, the iconic image project is built, with strong practicability and wide application fields. It can be applied to large public facilities, such as the roof system of stadiums, airport halls, exhibition centers, shopping centers, parking lots, platform facilities, etc. Advantages: (1) Large span. Membrane structure has light weight and good seismic performance, which can eliminate the need for internal support. It overcomes the difficulties encountered by traditional structures on large-span (unsupported) buildings. It can create huge unobstructed visual space and effectively increase the space used. . (2) Artistic. Membrane structure breaks through the traditional architectural structure types, relying on styling and color science, can combine natural conditions, give full play to the architect's imagination, and create curves and various shapes that are difficult to achieve in traditional buildings according to creativity. , Full of the atmosphere of the times, reflecting the beauty of the strength of structural members. With the light, it is easy to form a night scene, giving people the enjoyment of modern beauty. (3) Economical. The film material has a certain light transmittance, which can reduce the intensity and time of lighting during the day and save energy; the transmission of colored lights at night can form a gorgeous landscape. Moreover, the membrane structure can be disassembled and easy to relocate, especially when building large-span buildings for short-term applications, which is more economical. (4) Security. The flame retardant and high temperature resistance of the membrane material can well meet the fire protection requirements; the membrane structure is a flexible structure that can withstand large displacements and is not easy to collapse; the membrane structure has light weight and good seismic performance. (5) Self-cleaning. Membrane materials with protective coating are used in membrane construction, which is not sticky. The dust falling on the surface of the membrane material can be washed by rain to achieve a good self-cleaning effect, while ensuring the service life of the building. (6) The construction period is short. The cutting of the diaphragm, the production of steel cables and steel structures, etc. are all completed at the factory to reduce the construction time on site. It can be carried out simultaneously with the lower reinforced concrete structure or components to avoid construction crossovers. At the construction site, only the steel cables, steel structures and membranes The connection, installation and positioning of the film and the process of tension, so the site construction and installation is fast and fast, and the construction period is relatively short compared to the traditional construction project. (7) Wide application. From the perspective of climatic conditions, membrane structure buildings are suitable for a wide area; from the perspective of scale, they can be as small as a single tent, a garden sketch, or a building covering tens of thousands or hundreds of thousands of square meters. Some people even imagined covering a small city to realize artificial nature. Classification: The architectural structure of the membrane structure is colorful and ever-changing. According to the support method, it is divided into an inflatable membrane structure, a tensile membrane structure and a skeleton support membrane structure. 1. Skeleton membrane structure The roof skeleton made of steel structure or integrated material is stretched above the membrane structure, and the lower support structure has high stability. Due to the simple roof shape, the opening is not easy to be restricted, and it has high economic benefits. It is widely applicable For any large and small space. 2. Tensile membrane structure It is composed of membrane material, steel cable and pillar, and uses steel cable and pillar to introduce tension into the membrane material to achieve a stable form. In addition to practicing creative, innovative and beautiful shapes, it is also the most structural form that can demonstrate the spirit of membrane structure. Large-span spaces also mostly use steel cables and compressed materials to form a steel wire mesh to support the upper membrane. Due to high construction accuracy requirements, strong structural performance, and rich expressive power, the construction cost is slightly higher than the skeleton membrane structure. 3. Inflatable membrane structure The inflatable membrane structure is to fix the membrane material around the roof structure. After the indoor air pressure is raised to a certain pressure by the air supply system, the pressure difference between the inside and outside of the roof is generated to resist the external force. Because the air pressure is used for support, and the steel cable is used as an auxiliary material , Without any beam and column support, it can get more space, quick construction and high economic benefit, but it needs to maintain the 24-hour blower operation, which is higher in the cost of continuous operation and machine maintenance costs.

Pure Europe Standard Hot Rolled H Beam Steel in Wide Flange Universal Beams UB Universal Columns UC Hot-rolled H-beam steel has wide flanges and large lateral rigidity; it has strong bending resistance, about 5-10% than I-beam steel. The two flanges are parallel to each other, and the structure is convenient.   Specification: Product Name Pure Europe Standard Hot Rolled H Beam Steel in Wide Flange Universal Beams UB Universal Columns UC Standard GB/T11263-2010 Types HDGI,PPGI,PPGL Material Grade Q235B,SM490,SS400,Q345B,Q345,etc Technique Hot rolled/welded Height 100-900mm Width 50-400mm Web thickness 5-30mm Flange thickness 7-40mm Tolerance 2-3% Surface Treatment 1),Bared 2),Black painted (varnish coating) 3),Galvanized   Features: Hot-rolled H-beams reasonably distribute the aspect ratio of the section size according to different purposes, and have excellent mechanical properties and superior use performance.   High structural strength. Compared with the I-beam, the section modulus is larger, and the metal can be saved by 10-15% under the same bearing conditions. The design style is flexible and rich. In the case of the same beam height, the steel structure bay can be 50% larger than the concrete structure bay, thus making the building layout more flexible. The structure is light. Compared with the concrete structure, it is lighter than the concrete structure, and the structure's own weight is reduced, which reduces the internal force of the structure design, which can make the building structure foundation treatment requirements low, simple construction and lower cost. The steel structure mainly made of hot-rolled H-section steel has scientific and reasonable structure, good plasticity and flexibility, and high structural stability. It is suitable for building structures that withstand large vibration and impact loads. It has strong resistance to natural disasters, and is especially suitable for many The building structure in the earthquake zone. According to statistics, in the world's devastating earthquake disasters of magnitude 7 or above, steel structures dominated by H-shaped steel have suffered the least damage. Increase the effective use area of ​​the structure. Compared with the concrete structure, the steel structure column has a small cross-sectional area, which can increase the effective use area of ​​the building. Depending on the different form of the building, it can increase the effective use area by 4-6%. Compared with welding H-shaped steel, it can significantly save labor and materials, reduce the consumption of raw materials, energy and labor, with low residual stress, and good appearance and surface quality. It is convenient for machining, structural connection and installation, and easy to dismantle and reuse. The use of H-section steel can effectively protect the environment, which is reflected in three aspects: first, compared with concrete, dry construction can be used, which produces less noise and less dust; second, due to the lighter weight, the amount of soil taken for foundation construction is less. Land resource damage is small. In addition, a large reduction in the amount of concrete and mountain excavation is beneficial to the protection of the ecological environment; third, after the service life of the building structure expires, the amount of solid waste generated after the structure is demolished is small, and the recycling value of scrap steel resources is high . The steel structure mainly made of hot-rolled H-beam has a high degree of industrial production, which is convenient for mechanical manufacturing, intensive production, high precision, convenient installation, and easy to ensure quality. It can be built into a real house manufacturing factory, bridge manufacturing factory, industrial factory manufacturing factory, etc. . The development of steel structures has created and promoted the development of hundreds of emerging industries. The construction speed of the project is fast, the area is small, and it is suitable for all-weather construction, and it is less affected by the weather conditions. The construction speed of the steel structure made of hot-rolled H-section steel is about 2-3 times that of the concrete structure, the capital turnover rate is doubled, and the financial cost is reduced, thereby saving investment. Take the "Jinmao Building" in Pudong, Shanghai, my country's "highest building" as an example. The structural main body with a main body height of nearly 400 m completed the structural roofing in less than half a year, while the steel-concrete structure requires a two-year construction period.   Application: Beam and column components in the steel structure of industrial and civil buildings. Steel structure load-bearing support for industrial structures. Steel piles and supporting structures for underground projects. Structure of industrial equipment such as petrochemical industry and electric power. Long-span steel bridge components. Ship and machinery manufacturing frame structure. Girder supports for trains, cars, and tractors. Port conveyor belt, highway baffle bracket.

Steel Structural Railway Train Station Construction 1).Main Steel Frame: Welded or Hot Rolled Steel H Section; 2).Bracing System: Square Hollow Section and Circular Hollow Section; 3).Surface Treatment: Rust-proof Painting with 2-4 Layers; 4).Steel Material: Q235 & Q345; 5).Shipment: by Open-top Containers; 6).Span: The max span is 50m between supporting bases. 7).Earthquake Resistance: 9 Grade. Pipe truss, Steel truss, Project truss, Truss frame, Display truss This kind of pipe truss can effectively reduce the load-bearings and significantly strengthen the stability of the project, low cost, practical, artistical, fashionable and durable, what's more, can reduce the pollutions to the enviroment. Our railway station structural buildings are built by honored workers in every detail rangeing from steel construction,support systems for excavation works, bolt connections, structural anchor bolt construction, bracing of roof structures, weld connections and visual inspection of weld, tubular construction, fire protection, corrosion protection of steel work, steel fabrication, steel erection and site safety, to material and steel specifications etc.   From material purchase and tracing, planning compilation, drawing detailing, production arrangement, quality inspection, to on-going painting, packing and delivering, we have separated department to strictly control process, quality and traceability. We HONFENG emphasize long-term cooperation and after-sales service, which make us enjoy very good reputation in the industry and also bring us orders from old clients again.  

FASECBUILDINGS can design, detailing, fabricate grandstands, stadiums, bleachers, arenas, auditoriums, theatres and sports stands all over the world. Our grandstand construction projects range from small football stands for local teams - such as the two hundreds of seater football stand to large sports stadium construction projects. We also design grandstands and stadia for other sports, including rugby, cricket, athletics and racing.   FASECBUILDINGS are also qualified to construct steel framed auditoriums and arenas, which are a combination of our wide span building design and grandstands. Our auditoriums can be used as theatres, cinemas, churches, conference halls, lecture theatres and concert halls. They can be built with or without sloping terraces or seating, stages, boxes etc. We can do the same for more modest buildings, such as swimming pools, dressage arenas and indoor football or cricket grounds. FASECBUILDINGS can incorporate a sliding roof into your arena or stadium design - just let us know. There is no need for stadia construction to be unrealistically expensive.