Sep 17, 2026
The Differences Between Double-sided Submerged Arc Welding And Single-sided Submerged Arc Welding
DSAW (Double Submerged Arc Welding) is double-sided submerged arc welding - the same weld seam is welded on both sides of the joint (for steel pipes, it'...
-
![The Reasons, Impacts And Prevention Of The Stratification Of Square Tube Billets]()
Jul 14, 2026The Reasons, Impacts And Prevention Of The Stratification Of Square Tube BilletsI. Core Causes of Layering in Square Tube Billets Layering of the billet refers to the phenomenon where layer-like metal separation occurs parallel...view more -
![Straightening Of Seamless Steel Pipe]()
Jul 10, 2026Straightening Of Seamless Steel PipeI. Core Factors Affecting the Curvature of Seamless Steel Pipes The bending deformation of seamless steel pipes (ERW high-frequency welding, LSAW s...view more -
![The Virtual Bending And Actual Bending Of Square Tubes]()
Jul 07, 2026The Virtual Bending And Actual Bending Of Square TubesI. Core Definition and Operating Principle The hollow bend and solid bend are two basic bending processes for cold forming of square section tubes....view more -
![What Causes The Zinc Coating On The Pipe To Turn White? Will It Affect The No...]()
Jul 03, 2026What Causes The Zinc Coating On The Pipe To Turn White? Will It Affect The No...I. Main Causes of White Discoloration 1. Normal Protective Oxidation (Uniform and Slight White Discoloration) When hot-dip galvanized pipes are sto...view more -
![EN 10210 Vs. EN 10219 – Which European Standard Should You Specify For Your H...]()
Jul 01, 2026EN 10210 Vs. EN 10219 – Which European Standard Should You Specify For Your H...EN 10210 or EN 10219? Hot‑finished vs. cold‑formed. That choice affects strength, precision, and price. This guide breaks down the differences and ...view more -
![How To Select Pipes For Urban Gas Pipelines, And The Common Specifications An...]()
Jun 25, 2026How To Select Pipes For Urban Gas Pipelines, And The Common Specifications An...1. Core Specifications for Gas Pipeline Selection The selection of urban gas pipelines strictly follows the "Urban Gas Design Code" GB 50...view more -
![Do Conventional Steel Pipes Have Any Specific Requirements For Weld Seams]()
Jun 18, 2026Do Conventional Steel Pipes Have Any Specific Requirements For Weld SeamsThe mainstream foreign steel pipe standards (commonly referred to as "external standards" in the industry, such as API, ASTM, EN, ISO ser...view more -
![Professional And Comprehensive Analysis Of Steel Pipe Anti-corrosion Coatings]()
Jun 15, 2026Professional And Comprehensive Analysis Of Steel Pipe Anti-corrosion CoatingsProfessional and Comprehensive Analysis of Steel Pipe Anti-corrosion Coatings Steel pipes are widely used in core fields such as oil and gas transp...view more -
![A Practical Guide To EN 10219 Standard: Choosing The Right Steel Grade For Yo...]()
Jun 05, 2026A Practical Guide To EN 10219 Standard: Choosing The Right Steel Grade For Yo...EN 10219 is a key European standard for cold‑formed welded structural hollow sections made from non‑alloy and fine‑grain steels. This guide explain...view more -
![What Factors Affect The Quality Of Large-diameter Spiral Steel Pipes?]()
Jun 05, 2026What Factors Affect The Quality Of Large-diameter Spiral Steel Pipes?A Comprehensive Analysis of Factors Affecting the Quality of Large-Diameter Spiral Steel Pipes Large-diameter spiral steel pipes (typically referri...view more -
![Comprehensive Guide To ASTM A500: Selecting The Right Steel Grade For Your Ho...]()
Jun 04, 2026Comprehensive Guide To ASTM A500: Selecting The Right Steel Grade For Your Ho...Importance of hollow structural sections (HSS) in North American construction. Overview of ASTM A500 as the key standard for cold-formed welded/se...view more -
![Steel Pipe Rusting And Ordinary Rusting]()
Jun 02, 2026Steel Pipe Rusting And Ordinary RustingSteel Pipe Floating Rust and Common Rust (Heavy Rust / Peeling Rust) I. Definition, Distinction, Causes of Formation 1. Floating Rust (Water Rust, ...view more
