Currently, the specifications of internally and externally plastic-coated steel pipes are quite comprehensive and complete in the steel pipe market, and all supplied products meet the relevant national quality standards. Internally and externally plastic-coated steel pipes are a type of composite st

First, what are the differences between anti-corrosion steel pipes and galvanized steel pipes?  Although both are pipe materials, they differ in material, manufacturing process, anti-corrosion performance, and application scenarios. 1. Material differences: Anti-corrosion steel pipes are made

"Large-diameter straight seam welded steel pipe" is a general term referring to steel pipes produced using steel strips and welded straight seams on high-frequency welding equipment. Different subsequent production processes are involved depending on the intended use. Generally, straight seam ste

(1) During extrusion, the temperature of the inner lining of the spiral welded steel pipe continuously increases with the progress of the extrusion process. At the end of extrusion, the temperature in the area near the extrusion die on the inner wall of the lining is relatively high, reaching 631℃.

The nominal diameter of a straight seam steel pipe refers to the series of diameter dimensions specified in the straight seam steel pipe standard. For straight seam steel pipes, fittings, valves, etc., the nominal diameter is expressed using the series specified in the standard. Straight seam steel

First, what are the corrosion prevention measures for oil casing? 1. We ensure water quality meets standards; we strictly monitor and manage water quality. 1. Implement separate injection for clean and contaminated water, strengthen the cleaning of the main water pipeline, ensure that the water qua

First, what is a thin-walled spiral welded steel pipe?  The strip steel is fed into a pipe welding unit and rolled by multiple rollers, gradually forming a circular pipe blank with an open gap. The pressure of the extrusion rollers is adjusted to control the weld gap to 1-3mm, ensuring the two

In the production process of cold-drawn steel pipes, the "annealing" step—commonly known as "heating"—is not a superfluous process, but a crucial operation that determines the final performance and subsequent reliability of the cold-drawn steel pipe. To understand why this "heating" is necessary, we

First, what is the process flow for welding steel pipes?  Installation preparation - grooving - hole drilling - machinery installation - tees/crosses - steel pipe installation - system pressure testing. Second, what are the preparation steps for welding steel pipe installation? 1. Inspect

15CrMoG alloy steel pipe is a seamless steel pipe with the properties of a high-pressure alloy pipe. Its core properties include high-temperature strength, oxidation resistance, hydrogen corrosion resistance, and suitability for fluid transportation under high-pressure environments. First, what a

Plastic-coated steel pipes, also known as plastic-coated pipes, steel-plastic composite pipes, or plastic-coated composite steel pipes, are steel-plastic composite pipes with a steel pipe base. A layer of plastic anti-corrosion coating is fused to the inner surface of the steel pipe or to both the i

09CrCuSb seamless steel pipe is a low-alloy steel material with excellent resistance to sulfuric acid dew point corrosion. It is widely used in flue gas desulfurization systems and sulfur-containing waste gas treatment equipment in industries such as power, chemical, and metallurgy. Due to its un

In the selection process of precision steel pipes, tolerance marking is a crucial step that directly affects product compatibility, performance, and cost control. Even slight negligence can lead to selection errors, causing problems such as installation difficulties, insufficient load-bearing capaci

Coated steel pipes, as a new type of steel product, have broad market prospects and huge development potential. As a shining jewel in the steel industry, their unique advantages and wide applications have attracted attention. This type of steel pipe integrates coating technology with steel pipe manu

1. Commonly used standards for S31609 seamless stainless steel pipes: ASTM A312, ATMA213, ASME AS-213/SA-213M, ASME... SA-312/SA312M, 2. Chemical composition of S31609 stainless steel seamless pipe: Carbon: 0.040~0.10, Silicon: ≤1.0, Manganese: ≤2.0, Phosphorus: ≤0.045, Sulfur: ≤0.030, Nickel: 11.0

Seamless steel pipes are named for their seamless construction. They are formed in one piece from round steel billets through hot rolling or cold drawing. This manufacturing process gives the pipes uniform mechanical properties in the circumferential direction, completely avoiding the weak weld seam

DN225 steel pipe is a common steel pipe specification, with a diameter of 225 mm and a wall thickness of 6 mm. It is commonly used in industrial, municipal engineering, and construction fields, such as water supply and drainage pipelines, oil and gas transmission pipelines, and bridge support struct

Torque in seamless steel pipes is a key physical parameter in the steel pipe industry. It not only directly affects the performance of the steel pipe but also has important applications in various engineering fields. When analyzing the torque of seamless steel pipes, we need to consider several fact