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What are Steel Pipes?

What are Steel Pipes? Steel pipe is long, hollow tube that are used in the piping system to transport liquid, gas and sometimes solids. Divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe according to the material; divided into conveying pipeline, engineering structure, thermal equipment, petrochemical industry, machinery manufacturing, geology according to the purpose For drilling, steel pipes for high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipe and welded steel pipe. The seamless steel pipe is divided into hot rolling and cold rolling (pulling). The […]

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What are Carbon Steel Pipes?

What are Carbon Steel Pipes? Carbon steel pipes are also called cs pipes. The general carbon steel pipe is made of 10, 20, 30, 35, 45 and other high-quality carbon steel 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot-rolled or Cold rolled. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid conveying pipes. 45, 40Cr and other medium carbon steel seamless pipes are used to make mechanical parts, such as the force parts of automobiles and tractors. 1 Types   4 Manufacturing Process […]

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What are valves?

What are valves? Valves are piping accessories used to open and close piping, control flow, and regulate and control the parameters (temperature, pressure, and flow) of the medium being transported. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. The valve is a control component in the fluid delivery system and has functions such as cut-off, regulation, diversion, prevention of backflow, regulation, shunting or overflow relief. Valves for fluid control systems range from the simplest shut-off valves to the extremely complex self-control systems available in a wide variety of sizes and […]

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What is the Meaning of API 5L Pipe?

Api 5L pipe corrosion is mainly for wall thinning, pitting rot point pit stress cracks. Pipe detection is the application of various technologies truly and records, including basic dimensions (pipe wall thickness and diameter) pipeline straightness road internal and external corrosion in pipeline straightness, said internal and external corrosion conditions (corrosion size, shape, depth and occur parts corrosion zone size, the shape of the depth and the occurrence site corrosion size, shape, depth, and locations), weld defects, as well as crack, weld defects such as cracks. Currently, it have done a lot of work in the oil and gas pipeline corrosion […]

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What are the differences between bolts, screws and studs?

In life, bolts, screws, nuts are often mentioned. What are the differences between them? In fact, the standard is that there are no screws and nuts. Screws are commonly known as “screws” with external threads. The shape of the nut is usually hexagonal, and the inner hole is internally threaded to match the bolt and tighten the relevant parts. The nut is a common name and the standard should be called “nut”. The head of the bolt is generally hexagonal and the stem has external threads. The screw is small, the head has a flat head, a crosshead, etc., and […]

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Where can I get carbon steel pipes?

What are Carbon Steel Pipes? Carbon steel pipes are basically metal alloys that are composed as a result of carbon and iron. In the process of manufacturing steel pipe, manufacturers add carbon to iron in order to solidify the overall structures and successfully strengthen the resulting metal. Carbon steel is the most cost-effective alloying material found in the market. They are also classified into four categories namely low-carbon, medium-carbon, high-carbon and ultra-high carbon steels. The steel present in the alloy is considered to be complete carbon steel only when the proportions of other evident elements present in it do not exceed any certain […]

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What are forged pipe fittings?

What are forged pipe fittings? Forged Pipe Fittings (Socket Weld and Threaded) are made in agreement to ASME (American Society of Mechanical Engineers) B16.11, MSS SP-79\ 83\ 95\97 and BS3799 guidelines, and are utilized to connect nominal bore schedule pipes and pipelines. Socket-weld or threaded (npt or pt type. ) Pressure: 2000LBS, 3000LBS, 6000LBS, 9000LBS Size: from 1/4″ to 4″ (6mm-100mm) Material: ASTM A105, F304, F316, F304L, F316L, A182 F11/F22/F91 Connection ends: butt welded, threaded Rating: 1. Threaded wog: 2000, 3000 and 6000 lbs (140kgs/cm2-210kgs/cm2-410kgs/cm2)( sch 40 – sch 80 – sch 160 ). 2. Socket-welding wog: 3000, 6000, 9000 […]

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Brief Introduction of Welded Steel Pipe

Welded steel pipe, also known as welded pipe, is a steel pipe which welded by steel plate or strip after the coil shaping. Welding steel pipe is simple in production process, high in production efficiency, various in specifications, and the equipment capital is not much. Generally, the strength of welded steel pipe is lower than the seamless steel pipe. Since the 1930s, with the rapid development of rolling production of high quality cold rolling strip steel and progress of welding and inspection technology, welding quality continuously improve. What’s more, specifications of welding steel pipe are increasing and instead of the […]

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Use and maintenance of stainless steel elbows

What is a stainless steel elbow? A stainless steel elbow is a tube that is bent at an angle or curve, allowing the straight tube to be joined at an angle. The size and shape of the stainless steel elbows are completely dependent on the needs of the user. The difference between the stainless steel elbow and the carbon steel elbow is mainly due to the difference in material. The chemical composition of the stainless steel will keep the surface of the elbow from rusting for a long time and will not be corroded. Stainless steel is usually made of […]

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Production Techniques of Flanges

The production techniques of flanges fall into four major types: forging, casting, cutting, rolling. Cast Flange Pros: Precise, sophisticated shape and size          light workload          low cost Cons: Defects such as pores, crack, containing impurities           Poor internal streamline (worse in cutting parts) Compared to cast flange, forged flange is generally with lower carbon content and better in rust prevention, streamline, compact structure, mechanical capacity. Improper forging process will cause bigger or uneven grain, hardening, seaminess and higher cost. Forged flange can withstand stronger shearing force and tensile strength. And due to its well-distributed inner, it won’t have defects such as pores, impurities containing like […]

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