Year1
- 材质：
- Q235B
- 规格：
- 219*6,720*8,820*8,325*10,920*8,1620*10,1620*16,2020*16,1820*12
- 质量等级：
- 正品（受质量异议）
The content of the national standard spiral steel pipe standard
/ Part 1 specifies the basic quality and test requirements (grade) for transporting flammable fluids and non-combustible fluids in the oil and gas industry Technical delivery conditions for seamless and welded steel pipes of non-alloy steel and alloy steel (excluding stainless steel) for fluids (including water). This standard includes threaded and extra heavyweight threaded steel pipes without threads, extra light heavyweight unthreaded, ordinary heavyweight unthreaded, extra heavyweight unthreaded and extra heavyweight unthreaded steel pipes as well as socket and spigot steel pipes. The dimensional requirements of threads and thread gauges, measurement method requirements, technical requirements and calibration of gauges, instruments and methods for inspecting threads are given in, and/, and are applicable to the products covered by this standard. The steel grades covered by this standard are, and and intermediate grades between those listed in the table and the higher grades. As shown in the table, the ordinary heavyweight unthreaded and special light heavyweight unthreaded steel pipes, as well as the threaded steel pipes with nominal dimensions larger than (see table), are marked as outer diameter. For other steel pipes, the size marking is the nominal size of the steel pipe. In each chapter of the main text of this standard, wherever the size boundary (or size range) of the steel pipe is specified, unless it is noted as the nominal size, it refers to the outer diameter size. These outer diameter dimension lines and ranges also apply to the corresponding nominal dimensions.
Cangzhou Hongyun Steel Pipe Co., Ltd. is a specialized enterprise integrating the production, sales and export of steel pipes and pipe fittings. The company has advanced process equipment and complete testing methods. It has advanced testing equipment such as radiographic flaw detection, ultrasonic flaw detection, hydrostatic testing machine, physical and chemical laboratories and a complete measurement system to ensure that product production and inspection meet standard requirements and meet customer needs.
Our company's main products include spiral steel pipes, seamless steel pipes (hot-rolled, cold-drawn), alloy steel pipes, thermally expanded steel pipes, straight-seam steel pipes, large-diameter thick-walled steel pipes, galvanized steel pipes, and anti-corrosion steel pipes. The company currently has Lincoln double-sided submerged arc welding spiral steel pipe production line in the United States, (Diesel seamless piercing machine) seamless steel pipe production line, medium and high frequency push machine thermal expansion steel pipe production line, and high frequency straight seam steel pipe production line. It can produce double-sided steel pipes annually. The diameter and wall thickness of submerged arc welded spiral steel pipes. The diameter and wall thickness of 10,000 tons of seamless steel pipes. The diameter and wall thickness of 10,000 tons of thermally expanded seamless steel pipes. The diameter and wall thickness of 10,000 tons of straight seam electric resistance welded steel pipes and the diameter and wall thickness of straight seam double-sided submerged arc welded pipes. The company has large-diameter thick-walled steel pipes with a diameter of 10,000 tons and a wall thickness of 10,000 tons, and stocks 10,000 tons of alloy steel pipes from several major domestic steel mills all year round. Spiral steel pipe implementation standards // Seamless steel pipe implementation standards. Alloy steel pipe implementation standards/. Thermal expansion steel pipe implementation standards. Straight seam steel pipe implementation standard/. Large-diameter thick-walled steel pipes comply with standards/.
In addition, according to customer requirements, our company can undertake single-layer and double-layer sintered epoxy powder, double-layer polyethylene and three-layer polyethylene, double-layer polypropylene and three-layer polypropylene, and epoxy coal pitch for steel pipes. Anti-corrosion coating pipeline external anti-corrosion engineering and polymer anti-corrosion coating anti-corrosion, cement mortar pipeline inner wall anti-corrosion and other pipeline inner coating pipeline anti-corrosion projects with various anti-corrosion structures, implement, / standards, are widely used in oil, natural gas, gas, water and other long-term Pipeline and petrochemical enterprise urban centralized heating pipe network, gas pipe network and other projects, the product has many advantages such as high strength, high pressure resistance, easy installation, low cost, long service life, etc., and is well received by users.
The company relies on its rich technical strength, advanced management experience, excellent sales services, strict quality management system and scientific overall marketing methods to go hand in hand with you and develop together. The company adheres to the principle of being honest and doing things with integrity, and thanks new and old customers with the best quality, the lowest price, and the most perfect after-sales service. We sincerely hope to establish a long-term cooperative relationship with you for mutual benefit and win-win cooperation< br/>
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