High reputation Pipe Welding Academy - Thick Wall Spiral Steel Pipe 10mm Tensile Strength 300MPa Spiral Steel Pipes Used in Oil Industry API5l Spiral Pipeline – XH

Detail

Shandong Xinhe International Trade Company’s main products are spiral steel pipe, straight seam steel pipe, directly buried thermal insulation steel pipe, steel insulation steel pipe, 3PE anticorrosive steel pipe, 2PE anticorrosive steel pipe, epoxy coal asphalt anticorrosive steel pipe, epoxy resin anticorrosive steel pipe, IPN8710 anticorrosive steel pipe, cement mortar anticorrosive steel pipe, coated plastic steel pipe and a variety of pipe accessories, Products are used in natural gas, petroleum, chemical, power, heat pipe network, water source and other long-distance transmission pipelines.

“Integrity, innovation, kindness, atmosphere” is the spirit of the company, the company follows the integrity of management, genuine goods and prices, service purposes, to win users, expand the market, to the quality of credibility, credibility and development, with strong strength, products, low price won the trust of new and old users. This is also the company’s commitment to every customer. The company always puts the customer in the first place, establishes the product pre-sale, after-sales service standard, the whole process to meet customer requirements, so that our products and services won the trust of customers, and customers to establish a long-term cooperative and mutually beneficial relationship.

Description

It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip according to a certain spiral angle (called forming angle) into a tube blank, and then welding the tube seam together. It can be made with a narrower Strip steel produces large diameter steel pipes. Its specifications are expressed by outer diameter * wall thickness, and the welded pipe shall be ensured that the hydraulic test, the tensile strength of the weld and the cold bending performance must meet the requirements.

Advantages of spiral welded pipe

(1) Steel pipes of different diameters can be produced using strip steel of the same width, and steel pipes of large diameter can be produced from narrow strip steel.

(2) Under the same pressure conditions, the stress of the spiral welded seam is smaller than that of the straight seam, which is 75% to 90% of that of the straight seam welded pipe, so it can withstand greater pressure. Compared with the straight seam welded pipe of the same outer diameter, the wall thickness can be reduced by 10% to 25% under the same pressure.

(3) The size is accurate, the general diameter tolerance does not exceed 0.12%, the deflection is less than 1/2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted.

(4) Continuous production is possible. In theory, long steel pipes can be produced, with small head and tail loss, and can increase the metal utilization rate by 6% to 8%.

(5) The equipment is light in weight and low initial investment. It can be made into a trailer-type mobile unit to directly produce welded pipes at the construction site where the pipeline is laid.

The production of spiral welded steel pipes can reflect the advantages of high quality and high efficiency. The production capacity of one spiral welded pipe unit is equivalent to 5-8 sets of straight seam welded pipe equipment. How to make multiple pipe coiling equipment production lines meet the same production standard, that is, produce according to a unified production process specification and quality assurance system to meet welding quality Requirements and piping manufacturing grades will be an
arduous task.

Specification

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