While planning to make welded steel pipe, you need to check whether you have prepared enough tools, such as welding goggles, hand-held propane torch, welding rod and so on. During the burning of welding rod, it would produce strong light. Thereby, you need to make sure that you have worn the welding goggles to protect your eyes before starting the making process.
In order to insure the quality of the welded steel pipe, you could apply the preheating method to the steel pipe. Heat the ends which are going to be welded. Then you could light the welding rod and use the melted rod to cover the surface of the steel pipe joints. Wait a few minutes to let the steel pipes cool down. As we all know, the metal are endowed with excellent thermal conductivity and so you do not need to wait too long.
Before applying the welded steel pipe to your pipe system, it is necessary to test its quality. The joints should be strong enough to endure certain pressure. According to your requirements, you could apply suitable pressure to the welded parts of the pipe, and then inspect whether the joints begin to break or crack. And the same time, you need to determine the sealing condition of the pipes as well. Fill the pipe with water or other liquid and find if there is any leak.
During the process to make welded steel pipe, you could pay attention to your safety from the start to the end. The strong light created by the burning welding rod should be prevented from being looked at directly. The proper device would be much helpful to insure your safety of eyes. You should follow the process strictly and obey the rules to reduce the risk to get injured. If you want to find more information to keep your safety, you could visit: www.xinlinsteel.com
1. Pipe was divided into ordinary steel pipe and thickened steel pipe in the standard of wall thickness and divided into spiral steel pipe and non-spiral steel pipe in the standard of pipe end formation. Specification of the pipe was expressed as nominal diameter (mm) which is approximate to the inner diameter, traditionally expressed in inches.Except from direct low-voltage transmission of fluid, welded steel pipe for low pressure liquid delivery was also made extensive use as the original galvanized welded steel pipe for low-voltage transmission fluid pipes.
2. Ordinary carbon steel wire casing (GB3640-88) is t used in construction, installation for machines and equipment. 3. Straight seam welded steel pipes (YB242-63) is the steel pipe those welds parallel to the longitudinal steel pipe. Usually divided into metric welded steel tubes, welded thin-walled tubes, transformer cooling tubing and so forth.
4. Spiral submerged arc welded steel pipe for high pressure fluid delivery(SY5036-83) is mainly used for transportation of oil and natural gas pipelines which uses hot-rolled steel strip coils as tube, shaped spiral in normal temperature and welding with the double - sided arc welding method. Pipe is safe and reliable as it has good pressure-bearing ability, good welding properties resulting from a variety of rigorous scientific examination and testing. Black steel pipe has a large diameter and high transmission efficiency; it can save the laying of pipeline investments.
5. Spiral high frequency welded pipe for high pressure fluid delivery (SY5038-83) is similar with the spiral submerged arc welded steel pipe. It is also used for oil and natural gas pipelines and use hot-rolled steel strip coils as tube. What makes the deference is the use of high-frequency welding of lap joint method. Similarly, the pipe has good pressure-bearing ability and good plasticity and ease of welding and forming; after strict and scientific inspection and testing, the usage is safe and reliable. We will save the laying of pipeline investments with its factor of large diameter and high transmission efficiency as well.
6. The general spiral submerged arc welded steel pipe for low-voltage transmission fluid (SY5037-83) is generally used for low-voltage transmission fluid such as water, gas, air, steam. etc. which use a hot-rolled steel strip coils for the tube, making spiral shape under normal temperature and welding with the method of double - sided arc welding.
7. Spiral high frequency welded steel pipe for low-voltage transmission fluid (SY5039-83) is a hot-rolled steel strip coils for the tube, often warm spiral shape, using high-frequency welding of lap joint welding method for spiral high frequency welded API steel pipe for low-voltage transmission fluid.
8. Spiral weld steel pipe pile (SY5040-83) is a hot-rolled steel strip coils for the tube, often warm spiral shape and are made by double submerged arc welding and high frequency welding, used in civil engineering and building structures, docks, bridge base piles with steel pipe.
There are various kinds of pipes both in domestic and international markets for your selection. There are plastic pipe, metal pipe, black steel pipe, seamless steel pipe and so forth. You are advised to choose the API steel pipe from a reliable supplier. And the black steel pipe, as one of the main pipe types to carry gas, it is very popular both in domestic and international markets, both in daily life and in industry areas. Steel pipe is considered as the ideal choice for conveying water and gas for its hollow structure, strength, durability and elasticity.
As to the areas that require to bear both internal and external pressure, the steel pipe is required actually. The black steel pipe can be used in even the very tough condition since it has elasticity, ductility and freedom from brittleness actually. The steel pipe is usually manufactured from the materials with yield stresses varying within 210 to 350 MPa and the tensile strength varing within 340 to 650 MPa. You are advised to choose the black steel pipe from a reliable supplier. As to the uneven bending, wrong alignment or variation in temperature, the steel pipe can also function well.
And different from the plastic pipe, the steel pipe can be used to where needs the high resistance to shock and vibration. The steel pipe can be used in water pipes, fire sprinkler systems and gas systems actually. And in such situation, the plastic pipe is not available or properly actually since it can't help to provide corresponding results.
What's more, it can bear some bad weathers. The plastic pipe may break if the temperature is too low actually, however, the steel pipe is ok actually. You are advised to choose the welded steel pipe from a reliable supplier. The steel pipe comes in a variety of forms and structures depending on their use and applications.
Frankly speaking, Shanghai Xin Lin is one of the leading manufacturers of black steel pipe. We have great reputation among consumers both at home and abroad. We provide various kinds of steel pipes for your selection. Shanghai Xin Lin Co., Ltd. Tel: +86-021-61395200 Mobile No: +86-13611965409 Fax: +86-021-51561726 E-mail: frank@xinlinsteel.com Address: Room 513,No.1, Lane 1029,Kong Jiang Road,Shanghai, China Website: http://www.xinlinsteel.com
Fri Feb 21, 2014 2:26 am
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