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Best quality Fine Drawing National Standard Steel Pipe - Large diameter stainless steel tube manufacturer – Weichuan
With the implementation of China’s reform and opening-up policy, the national economy has achieved rapid growth, and a large number of urban houses, public buildings and tourism facilities have been built, which puts forward new requirements for hot water supply and domestic water supply. In particular, people pay more and more attention to the problem of water quality, and the requirements are also increasing. Galvanized steel pipe, a common pipe, will gradually withdraw from the histo... -
Chinese Professional Extruded 6728 Square Tube - 16Mn high-quality seamless steel pipe manufacturer spot – Weichuan
(1) High quality carbon structural steel grades include 20g, 20mng and 25mng. (2) Alloy structural steel grades: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, etc. (3) In addition to ensuring chemical composition and mechanical properties, 1Cr18Ni9 and 1cr18ni11nb boiler tubes commonly used in rusty heat-resistant steel shall be subject to hydrostatic test, flaring and flattening test one by one. Steel pipes shall be delivered in heat treated condition. (1) Gb3087-2008 s... -
China Supplier A106grb Steel Pipe - 321 stainless steel pipe genuine spot – Weichuan
1. 321 stainless steel pipe. Seamless steel pipe (GB14976-2002) is a high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe for manufacturing superheated steam pipe, boiling water pipe of low and medium pressure boiler and superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe for locomotive boiler. 2. 321 stainless steel pipe: it is mainly used to manufacture high-quality carbon structural steel, alloy structural steel and stainle... -
100% Original Cold Drawn 6728 Seamless Square Tube - T91 high pressure steel pipe quality assurance – Weichuan
T91 steel is a new type of martensitic heat-resistant steel developed by American National elephant ridge laboratory and Metallurgical Materials Laboratory of American combustion engineering company. On the basis of 9Cr1MoV steel, it reduces the carbon content, strictly limits the content of sulfur and phosphorus, and adds a small amount of vanadium and niobium for alloying. The steel grade of T91 seamless steel pipe corresponding to T91 steel is x10crmovnnb91 in Germany, hcm95 in Jap... -
Wholesale Dealers of 304 Finish Rolled Stainless Steel Pipe - High quality stainless steel square tube – Weichuan
Stainless steel square tube is a kind of hollow long steel. Because the section is square, it is called square tube. A large number of pipelines are used to transport fluids, such as oil, natural gas, water, gas, steam, etc. in addition, when the bending and torsional strength are the same, the weight is relatively light, so they are also widely used in the manufacture of mechanical parts and engineering structures. Classification of stainless steel square pipe: square pipe is divided into se... -
OEM/ODM Manufacturer Cold Drawn S235j2h Seamless Steel Pipe - 45# seamless steel pipe factory direct sales – Weichuan
45# seamless steel pipe after quenching and tempering treatment has good comprehensive mechanical properties and is widely used in various important structural parts, especially those connecting rods, bolts, gears and shafts working under alternating load. However, the surface hardness is low and not wear-resistant. Quenching and tempering + surface quenching can be used to improve the surface hardness of parts. Recommended heat treatment temperature: normalizing 850, quenching 840, temperin... -
2021 Latest Design P91 Alloy Steel - Spot sales of large caliber rectangular tube – Weichuan
Large diameter square pipe, with hollow section, is widely used as a pipe for conveying fluid Such as pipelines for transporting oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe has the same bending and torsional strength and light weight. It is an economic section steel. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel sc... -
OEM Manufacturer 45# Seamless Steel Pipe - High pressure stainless steel tube manufacturer – Weichuan
316L is a brand of stainless steel, AISI 316L is the corresponding American brand and Sus 316L is the corresponding Japanese brand. China’s unified digital code is s31603, the standard brand is 022cr17ni12mo2 (new standard), and the old brand is 00Cr17Ni14Mo2, which indicates that it mainly contains Cr, Ni and Mo, and the number indicates the approximate percentage. The national standard is GB / T 20878-2007 (current edition). 316L is widely used in the chemical industry because of its ... -
Factory best selling 20# Hot Rolled Thick Wall Steel Pipe - Anti corrosion and thermal insulation steel pipe manufacturer – Weichuan
High temperature prefabricated directly buried insulation pipe is a kind of directly buried prefabricated insulation pipe with good insulation performance, safety and reliability and low project cost. It effectively solves the problems of thermal insulation, sliding lubrication and waterproof of exposed pipe end of prefabricated directly buried thermal insulation pipe for high temperature heat transmission at 130 ℃ – 600 ℃ in urban central heating. High temperature prefabricated directl... -
Competitive Price for Small Diameter Seamless Steel Pipe - Small diameter steel pipe manufacturer – Weichuan
The production and manufacturing process of small-diameter thick wall seamless steel pipe can be divided into four basic modes: cold drawing, cold rolling, hot rolling and hot expansion. The materials of steel pipe are 10#, 20#, 35#, 45# called ordinary steel pipe, which can be divided into structural seamless steel pipe according to the purpose; Seamless steel pipe for transportation; Seamless steel pipe for boiler; High pressure seamless steel pipe for boiler; High pressure seamless steel p... -
Ordinary Discount 20cr Steel Pipe - Thick walled square pipe manufacturer – Weichuan
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. After unpacking, leveling, crimping and welding, they form round pipes, which are rolled into square pipes, and then cut into the required length. Generally, there are 50 square tubes per package. In terms of spot, most square tubes are in large specifications, ranging from 10 * 10 * 0.8-1.5 to 500 * 500 * 10-25. S... -
Big discounting Angang 20cr Alloy Steel Pipe - Spiral steel pipe is of high quality and low price – Weichuan
Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, often formed by warm extrusion and welded by automatic double wire double-sided submerged arc welding process. The spiral steel pipe sends the strip steel to the welded pipe unit. After rolling by multiple rollers, the strip steel is gradually rolled up to form a circular pipe blank with opening gap. Adjust the reduction of the extrusion roller to control the weld gap at 1 ~ 3mm and make both ends of the w...
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