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News2021-04-16T08:28:34+00:00

Steel Pipe Cross-Sectional Properties

Steel Pipe Cross-Sectional Properties Type/Model Outer Diameter Wall Thickness Cross-Sectional Area Weight Weight I W r mm mm mm cm^2 kg/m m^2/m cm^4 cm^3 cm 30x2 30 2 1.759 1.381 0.094 1.730 1.15 0.99 30x2.5 30 2.5 2.160 1.695 0.094 2.060 1.37 0.98 34x2 34 2 2.011 1.578 0.107 2.580 1.52 1.13 34x2.5 34 2.5 2.474 1.942 0.107 3.090 1.82 [...]

By |September 18th, 2024|Categories: BLOG|Comments Off on Steel Pipe Cross-Sectional Properties
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Common Steel Pipe Specifications Table

Common Steel Pipe Specifications Table Pipe diameters should be measured in millimeters (mm), and the expression of pipe diameters should conform to the following regulations: Water and Gas Transmission Steel Pipes (galvanized or non-galvanized), Cast Iron Pipes, etc.: The pipe diameter should be indicated by the nominal diameter DN. Seamless Steel Pipes, Welded Steel Pipes (straight seam or spiral seam), Copper [...]

By |September 18th, 2024|Categories: BLOG|Comments Off on Common Steel Pipe Specifications Table
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Steel Pipe Welding Techniques for Connecting Steel Pipes and Flanges

**Steel Pipe Welding Techniques for Connecting Steel Pipes and Flanges**   ### (1) Steel Pipe Butt Welding and Splicing 1. **Steel Pipe Butt Welds** - **Between any two adjacent nodes, there must not be two splicing points in the steel pipe butt welds, and the minimum length of the connecting pipe should be greater than 800 mm.** 2. **Welder Qualification** [...]

By |September 18th, 2024|Categories: BLOG|Comments Off on Steel Pipe Welding Techniques for Connecting Steel Pipes and Flanges
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Seamless Steel Pipe Production Process

### Seamless Steel Pipe Production Process The general production process of seamless steel pipes can be categorized into **cold drawing** and **hot rolling**. The production process of cold-rolled seamless steel pipes is generally more complex than that of hot-rolled pipes. The pipe billet first undergoes three-roll continuous rolling. After extrusion, a sizing test is performed. If there are no surface [...]

By |September 14th, 2024|Categories: BLOG|Comments Off on Seamless Steel Pipe Production Process
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Differences Between Hot-Rolled and Cold-Rolled Seamless Steel Pipes

### Differences Between Hot-Rolled and Cold-Rolled Seamless Steel Pipes 1. **Manufacturing Process**: - **Hot-rolled seamless steel pipes** are made by heating a round billet, piercing it, and then rolling it using a three-roll skew rolling process, continuous rolling, or extrusion. After rolling, the pipe goes through sizing, cooling, straightening, hydrostatic testing (or inspection), marking, and then storage. - **Cold-rolled seamless [...]

By |September 14th, 2024|Categories: BLOG|Comments Off on Differences Between Hot-Rolled and Cold-Rolled Seamless Steel Pipes
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Introduction to Common Types of Seamless Steel Pipes

### Introduction to Common Types of Seamless Steel Pipes 1. **Structural Pipes**: These normally refer to seamless steel pipes used for general structural and mechanical structures. The standard for fluid seamless steel pipes applies to seamless pipes used for conveying fluids. The main difference between fluid seamless pipes and structural seamless pipes is that the former undergoes individual hydraulic testing [...]

By |September 14th, 2024|Categories: BLOG|Comments Off on Introduction to Common Types of Seamless Steel Pipes
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