Website large image
Website large image
Website large image
Website large image

Company News

Steel Pipe Knowledge

Blog

Common Knowledge of Straight-Seam Steel Pipe Manufacturing in Nanning

2018/07/03

Common Knowledge of Straight-Seam Steel Pipe Manufacturing in Nanning

Based on the manufacturing process, straight-seam steel pipes are classified into high-frequency welded straight-seam steel pipes and submerged-arc welded straight-seam steel pipes. Submerged-arc welded straight-seam steel pipes, in turn, are further divided—according to their forming methods—into UOE, RBE, JCOE, and other types. The following section outlines the forming processes for the two most common types: high-frequency welded straight-seam steel pipes and submerged-arc welded straight-seam steel pipes.

View Details >

Pricing Method for Anti-Corrosion Spiral Steel Pipes in Guangxi

2018/07/03

Pricing Method for Anti-Corrosion Spiral Steel Pipes in Guangxi

Anti-corrosion spiral steel pipe refers to the process of applying anti-corrosion treatment to spiral steel pipes. The price of an anti-corrosion spiral steel pipe is the sum of the base price of the spiral steel pipe and the cost of the anti-corrosion coating. So how is the price calculated? Let’s take a DN300 spiral steel pipe as an example: we’ll calculate based on an external three‑coat, two‑fabric anti-corrosion system and an internal IPN8710 anti-corrosion coating. The spiral steel pipe costs 165 yuan per meter, while the anti-corrosion coating adds 43 yuan per meter. Therefore, the total price comes to 165 + 43 = 208 yuan per meter. To convert this to a per‑ton basis, simply divide the per‑meter price by the weight of the pipe per meter. For this case, 208 ÷ 0.0625 = 3,328 yuan per ton. Note that different anti-corrosion methods, varying prices, and different pipe specifications will result in different pricing. Based on the example above, you can apply the same logic to calculate the cost of any anti-corrosion spiral steel pipe you need.

View Details >

Trump’s latest decision may help ease the trade dispute with China.

2018/06/28

Trump’s latest decision may help ease the trade dispute with China.

On June 27, the Business Insider website reported that U.S. President Trump announced on Wednesday details of a plan to restrict Chinese investment in American technology companies, including an expansion of the powers of the Committee on Foreign Investment in the United States (CFIUS)—a move considerably more moderate than previously anticipated. The report noted that both the House and Senate are considering the “Foreign Investment Risk Review Modernization Act.”

View Details >

Applications of spiral pipes in Guangxi

2018/06/25

Applications of spiral pipes in Guangxi

The production process for straight-seam welded pipe is simple, with high productivity and low costs, leading to rapid development. Spiral-welded pipes generally have higher strength than straight-seam welded pipes; they can produce larger-diameter pipes from narrower billets and can also manufacture pipes of different diameters using billets of the same width. However, compared with straight-seam pipes of the same length, spiral-welded pipes have a weld seam that is 30% to 100% longer, and their production speed is lower. Consequently, smaller-diameter welded pipes are typically manufactured using the straight-seam process, while larger-diameter welded pipes are mostly produced by the spiral-welding method.

View Details >

Post-Use Knowledge for Spiral Steel Pipes in Guangxi

2018/06/25

Post-Use Knowledge for Spiral Steel Pipes in Guangxi

In everyday use, we inevitably rely on many types of pipes, and spiral steel pipe is one of them. What should you do when a spiral steel pipe becomes clogged? When a pipe is blocked, not only does it disrupt normal operation, but the buildup can also corrode the materials inside. If left unaddressed, this can lead to serious long-term consequences. First, try flushing with water—use the water pressure to dislodge and wash away the blockage. This method is straightforward, but it may be ineffective if the obstruction is substantial. Next, consider mechanical flushing: employ specialized equipment to generate high‑pressure jets that loosen deposits within the pipe, allowing debris to be carried away. Finally, manual intervention may be necessary—use appropriate tools to physically remove the blockage. In practice, these three approaches are often used in combination, providing a more effective solution for cleaning and unclogging.

View Details >

Future Demand Analysis of Spiral Pipes in Guangxi

2018/06/19

Future Demand Analysis of Spiral Pipes in Guangxi

“During the 12th Five-Year Plan period, the average annual growth rate of sales for hot-dip galvanized spiral pipes will decline from 12% in the 11th Five-Year Plan to a single-digit level. Going forward, sales volumes of hot-dip galvanized spiral pipes are expected to increase, but the factors driving this growth are likely to weaken.”

View Details >

Professional Knowledge of Anti-Corrosion Steel Pipes in Guangxi

2018/06/19

Professional Knowledge of Anti-Corrosion Steel Pipes in Guangxi

What is an anti-corrosion steel pipe? What kind of steel pipe is an anti-corrosion steel pipe? An anti-corrosion steel pipe refers to a standard steel pipe that has undergone special treatment to impart corrosion‑resistant properties, enabling it to withstand water, rust, acids and alkalis, oxidation, and other corrosive environments.

View Details >

Guangxi Spiral Pipe Manufacturing Specifications

2018/06/07

Guangxi Spiral Pipe Manufacturing Specifications

During production, the threaded connections of Guangxi spiral pipes are inspected in accordance with API specifications, using thread‑gauge gauges to verify thread pitch and tightness. Periodic single‑parameter thread gauges are employed to measure pitch and taper. At the job site, worn threads can be assessed with a thread‑form gauge; the remaining crest width must be at least half the original, and the remaining crest height at least two‑thirds of the original. If the number of worn threads does not exceed 3.5, the connection may continue to be used; otherwise, re‑threading is required. The most effective method for identifying thread types on Guangxi spiral pipes at the field is to use a coupling gauge—a vernier caliper marked with the external root diameter of the male thread and the internal enlarged‑taper hole diameter of the female thread—offering simplicity, clarity, and precision. Alternatively, a long‑shank vernier caliper combined with a steel ruler can be used to measure the external root diameter, length, and internal enlarged‑taper hole diameter, allowing direct comparison with the relevant thread standards. When the threads are held vertically, the direction of the helix—as viewed from the front—indicates the thread sense: a rightward rise denotes a right‑hand thread, while a leftward rise indicates a left‑hand thread.

View Details >

< 1...141516...18 >

Guangxi Nanning Canghai Steel Co., Ltd. All rights reserved

by:www.300.cn

Skype
WhatsApp

8613768885388
tel

13768885388
wechat
WeChat

WeChat

Link
customize

Sorry, there is currently no content in this section.

You can view other sections.

Business license