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China Wholesale 2.5 Inch Galvanized Square Steel Pipe Factories - High Quality Coating Steel Pipe – Xinsuju
Folding is classified by manufacturing process (1) The manufacturing process of seamless steel pipe can be divided into several basic categories: hot rolled (extrusion), cold rolled (drawing) and hot expanded steel pipe. (2) According to the manufacturing process, welded pipe can be divided into straight seam welded steel pipe, spiral welded steel pipe, plate coil butt welded steel pipe and welded pipe thermal expansion steel pipe. Collapse by shape According to the shape, steel pip... -
China Wholesale Stainless Steel Pipe Tube Factories - High Quality Spiral Steel Pipe – Xinsuju
product material Commonly used spiral pipe materials in China generally include: Q235A, Q235B, Q345, L245, L290, X42, X52, X60, X70, X80, 0Cr13, 1Cr17, 00cr19ni11, 1Cr18Ni9 and 0cr18ni11nb. Common standards for spiral pipes are generally divided into: SY / t5037-2018 (ministerial standard, also known as spiral seam submerged arc welded steel pipe for ordinary fluid transmission pipeline), GB / T9711.1-1997 (national standard, also known as technical delivery conditions of transmission st... -
China Wholesale Stainless Steel Pipe Square Factories - High Quality Galvanized Steel Coil – Xinsuju
Product Desscription There are many materials and classifications of hot-dip galvanized coil, including ordinary plate and deep drawing plate, patterned plate and non patterned plate (environmental protection and non environmental protection), the height of zinc layer, and the commonly used steel grades are SGCC, dc51d + Z (52d.53d…), dx51d + Z (52d.53d…), st02z (03.04…), etc. Production process flow: uncoiling, welding, pretreatment, inlet looper, heating furnace annea... -
China Wholesale Bs1387 Hot Dip Galvanized Scaffolding Pipe Suppliers - Angle Steel – Xinsuju
product type Classification of section steel: according to different smelting quality of steel, section steel is divided into ordinary section steel and high-quality section steel. According to the current metal product catalogue, ordinary section steel is divided into large section steel, medium section steel and small section steel. According to its section shape, ordinary section steel can be divided into I-beam, channel steel, angle steel, H-section steel, round steel, etc. Produc... -
China Wholesale Steel I-Beams Exporters - High Quality Seamless Square Pipe – Xinsuju
Process flow Round steel — tube blank — Inspection — Heating — perforation — sizing — hot rolling — flat head — Inspection — pickling — spherical annealing — cold drawing — forming — mouth alignment — inspection. Purpose 1. Seamless steel pipe for structure (GB / T8162-1999) is a seamless steel pipe for general structure and mechanical structure. 2. Seamless steel pipe for fluid transportation (GB /... -
China Wholesale Thin Wall Stainless Pipe Exporters - High Quality Stainless Steel Pipe – Xinsuju
Product Desscription Brinell, Rockwell and Vickers hardness indexes are commonly used to measure the hardness of stainless steel pipes. Stainless steel pipes can be divided into CR series (400 Series), Cr Ni series (300 Series), Cr Mn Ni series (200 Series) and precipitation hardening series (600 Series). 200 series – chromium nickel manganese austenitic stainless steel 300 series – chromium nickel austenitic stainless steel. Production Process Production process of sta... -
China Wholesale A36 Steel Angle Factories - High Quality Seamless Square Pipe – Xinsuju
Process flow Round steel — tube blank — Inspection — Heating — perforation — sizing — hot rolling — flat head — Inspection — pickling — spherical annealing — cold drawing — forming — mouth alignment — inspection. Purpose 1. Seamless steel pipe for structure (GB / T8162-1999) is a seamless steel pipe for general structure and mechanical structure. 2. Seamless steel pipe for fluid transportation (GB /... -
China Wholesale Gi Pipe For Scaffolding Manufacturers - High Quality Galvanized Square Pipe – Xinsuju
Hot dip galvanized square pipe Hot dip galvanized square pipe: it is a square pipe welded after crimping and forming with steel plate or steel strip, and on the basis of this square pipe, the square pipe is placed in the hot-dip galvanized pool and formed after a series of chemical reactions. Galvanized square pipe is divided into hot-dip galvanized square pipe and cold galvanized square pipe from the production process. It is precisely because of the different processing of the two galv... -
China Wholesale Scaffolding Pipe Fittings Manufacturers - High Quality Square Steel Pipe – Xinsuju
Product Desscription As the name suggests, square pipe is a kind of square pipe type. Many materials can form square pipe body. It is used for what purpose and where. Most square pipes are steel pipes, which are unpacked, leveled, crimped and welded to form round pipes, which are rolled into square pipes, and then cut to the required length. Generally, there are 50 square tubes in each package. In terms of spot, most of them are in large specifications, ranging from 10 * 10 * 0.8-1.5 ~ ~... -
China Wholesale Steel Pipe Price Per Meter Suppliers - High Quality Seamless Steel Pipe – Xinsuju
Production Process The general production process of seamless steel pipe can be divided into cold drawing and hot rolling. The production process of cold-rolled seamless steel pipe is generally more complex than hot rolling. The pipe blank must first be subject to three roll continuous rolling, and the sizing test shall be carried out after extrusion. If the surface does not respond to the crack, the round pipe must be cut by a cutter to cut the blank with a growth of about one meter. Th... -
China Wholesale 50mm Galvanized Steel Pipe Exporters - High Quality Galvanized Steel Coil – Xinsuju
Product Desscription There are many materials and classifications of hot-dip galvanized coil, including ordinary plate and deep drawing plate, patterned plate and non patterned plate (environmental protection and non environmental protection), the height of zinc layer, and the commonly used steel grades are SGCC, dc51d + Z (52d.53d…), dx51d + Z (52d.53d…), st02z (03.04…), etc. Production process flow: uncoiling, welding, pretreatment, inlet looper, heating furnace annea... -
China Wholesale Erw Stainless Steel Pipe Suppliers - High Quality Stainless Steel Pipe – Xinsuju
Product Desscription Brinell, Rockwell and Vickers hardness indexes are commonly used to measure the hardness of stainless steel pipes. Stainless steel pipes can be divided into CR series (400 Series), Cr Ni series (300 Series), Cr Mn Ni series (200 Series) and precipitation hardening series (600 Series). 200 series – chromium nickel manganese austenitic stainless steel 300 series – chromium nickel austenitic stainless steel. Production Process Production process of sta...