SSAW steel pipe is made by hot rolled strip by extrusion forming under the normal temperature. It usually uses the technology of double wire and double-faced submerged-arc. The surface of sipral welded pipe has no scratches since the steel plate has uniform deformation and light residual stress during molding process. And SSAW steel pipe has more flexible thicknesses and diameters.

Piling Pipe is widely used in coastal, river, lake area. Offshore deepwater terminal project in the country have also been large-scale construction in coastal areas, and as a major deep-water dock pile bearing capacity, generally use the large diameter spiral weld pipe, in addition, bridges, roads, high-rise building needs piling pipe etc.

Carbon steel pipe can be divided into two categories: hot and cold rolled (pull) steel.

The main purpose of alloy steel pipe is for power plant, nuclear power, high-pressure boiler, high temperature super-heater, re-heater and other high press, high temperature pipeline and equipment. It is manufacture with high-quality carbon steel, alloy structural steel and stainless heat-resistant steel after hot rolling (extrusion, expansion) or cold rolling (pulling).

Hot dip galvanized pipe molten matrix metal and the reaction of the iron alloy layer, so that the substrate and coating combination of both. Hot dip galvanized pipe is first pickled, the steel surface in order to remove iron oxide, after pickling, by mixing the aqueous solution tank for cleaning solution or ammonium chloride or zinc chloride, and then into hot-dip plating bath. Galvanized with coating uniformity, strong adhesion, long life and other advantages. Steel substrate occurs with molten bath complex physical, chemical reactions, the formation of corrosion-resistant zinc-iron alloy structure closely layer. Alloy layer and layer of pure zinc, steel base blend. Therefore it resistant to corrosion.

Hot dip galvanizing process: Workpiece degreasing → washing → pickling → washing → drying solvent dip fluxing preheated hot dip galvanized → cooling → finishing → rinsing → drying → passivation test Electro-galvanized process: Chemical degreasing → washing → hot water hot water electrolysis degreasing → washing → washing → strong corrosive galvanized iron alloy → washing → washing → light → → washing → drying passivation

Galvanized steel pipe is the surface with hot-dip galvanized or electro-galvanized layer. Galvanized steel can increase corrosion resistance and prolong life. Galvanized steel pipe is widely used, except for water, gas, oil, generally low-pressure fluid line pipe, also used oil heater oil industry in particular, marine oil wells pipes, pipelines, chemical coking equipment, condensing coolers, washing coal distillate oil exchange used tubes, as well as the bridge piles, mine tunnel support frame with a pipe.

What is piling? It is a method of establishing the foundation of an edifice. More specifically, it means digging deep into the ground to set up the supporting structure. Other buildings may have their foundations made through shallow digging, but in numerous locations the quality of the soil below a certain depth is too poor to permit such methods; or there may be one or more property lines in the vicinity; or the design loads may simply be so large as to require a deep pit.

①Hot-rolled seamless steel pipe main production process (the main test proess): Tube blank preparation and inspection → tube heating → perforation → rolling pipe → reheating reheating → fixed (minus) diameter → heat treatment → finished pipe straightening → finishing → inspection (lossless, physical and chemical, Taiwan inspection) → storage

Stainless steel traces its roots back to the early 1800’s in France. Carbon steel is alloyed with chromium to produce a corrosion resistant metal. During this process, other elements are included to develop the various alloys that are used today. Stainless steel pipe and stainless steel tubing is often used in construction for its appearance as well as its strength and corrosion resistance. During a process called passivation, a thin layer of chromium oxide forms on the outer surface of the stainless components. It is this barrier that protects the base metal from the elements.

What is ERW? ERW is an abbreviation of electric resistance welded pipe. It is plate rolled to turn out to be a pipe and welded by making use of the process of electric resistance welding.

As one of the biggest SAE1527 Seamless steel pipe supplier in China, we are qualified to supply you SAE1527 seamless steel tubes/steel pipes. This SAE1527 applies to the mechanical structure and general engineering structure for steel tubes. Tube/Pipe is mostly used in the annealed or hardened condition. However, it can also be heat treated, quenched and tempered. We also can arrange inspection from the third party like SGS,BV,DNV,PMI and so on, the goods we supplied will be of high quality and with required standard. We have been export steel for many years , if you have any question about SAE1527 pipe , please inform me ,thanks .

Equivalent Material: 15Mo3 under DIN standard A204Gr.A under ASTM standard Delivery Conditions: Normalizing; Normalizing+Tempering, Quenching+Tempering

Feature: The influence of merchantmen on property of 15NiCuMoNb5-6-4 pipe is researched. It is found that hardness descend and then raise, and strength gradually descend when tempering temperature ascend. Hardness descend and toughness raise when tempering time add. The best tempering technical of this steel is that tempering temperature is 630-660℃.

100Cr6 seamless steel pipe China is supplied with large stock.

China's biggest listed steelmaker Baoshan Iron & Steel Co Ltd will slash the prices of its mainproducts for September bookings by up to 3.4 percent, the third reduction in a row since June,indicating a lack of market confidence in the short run.The Shanghai-based manufacturer will cut hot-rolled coil prices by 100 yuan ($15.7) per tonand cold-rolled coil prices by 150 yuan per ton.

The main processing method of steel pipe is forged by forging hammer, the reciprocating impact or pressure of press the blank into the desired shape and size. Then you need to extrusion, rolling and pulling steel process. Extrusion: steel metal on the closed extrusion Jane, end pressure, the metal from the die hole of the provisions of the extrusion processing methods are the same shape and size of the finished product;

Stainless steel pipe can be ordered in 20-foot and 40-foot lengths and even 60-foot lengths for pipe diameters up to 16-inches. Ductile iron is only available up to 20 feet in length. The number of joints, and therefore cost, is reduced for long stainless steel pipe strings.

The pressure welded steel pipe consists of pipe, pipe fittings which include elbow, tee joint, taper pipe and other fittings, valve, flanged joint (flange, spacer as well as bolts), and these composition pieces are generally standard components, which can be fully decided by several factors such as their nominal pressure, texture of material, nominal diameter as well as wall thickness of the Welded steel pipe. And the nominal pressure of all the piping components in the same pipeline pressure grade. Thus, the nominal pressure grade of the piping components are called pipeline pressure grade in engineering.

Pipeline bear the effects of the pipeline transmission medium pressure and temperature, but also suffer from a variety of delivery through the heart of the impact of natural and human factors that may occur in the course of leaking or breaking all sorts of accidents. Not only due to leakage of pipeline accidents affect transport caused economic losses, but also pollute the environment. To ensure the safe operation of the pipeline and generate pipeline accident prevention should be the design, construction and operation of three aspects, including design and reasonable choice of pipe is very important. As for the pipe, the strength, toughness and weldability are three basic quality standards. It should also consider the environmental and transport medium for pipe corrosion, corrosion-resistant steel choice.

In the first half of 2017, the market's benchmark forecast is a far cry from the beginning of the year.The most dramatic change in expectations is the renminbi's exchange rate and the fed's tightening pace. At the beginning of the year it was widely believed that the yuan would break seven times against the dollar, and yellen would continue to raise the doves to the end. However, the renminbi has held steady against the dollar in mid-year and expectations of a weaker renminbi have weakened sharply, while the fed has raised its expectations for a hawkish rate hike in two successive hikes in March and June.