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Cold drawn black phosphated hydraulic seamless steel pipe
Features of cold drawn black phosphated hydraulic seamless steel pipes: 1. Cold drawn black phosphated hydraulic seamless steel pipes have high dimensional accuracy in public service, product accuracy is controlled within ± 5mm, internal and external wall smoothness is good, and there is no oxid...Read more -
Reasons for low-temperature embrittlement of cold rolled tubes
The cold brittleness (or low-temperature embrittlement tendency) of cold rolled tubes during use is represented by the toughness brittleness transition temperature Tc. The Tc of high-purity iron (0.01% C) is at -100C, and below this temperature, it is completely in a brittle state. Most alloy ele...Read more -
Common specifications for cold drawn seamless steel pipes
According to DIN2391/EN10305 or JIS G3445 DIN1629 and DIN2445 Cold drawn or cold-rolled precision seamless steel pipes – Table of commonly used Specifications and dimensions: Out Diameter*Thickness(mm) Φ4×0.5 Φ16×0.5 Φ26×1.8 Φ35×9.0 Φ48×5.0 Φ70×2.8 Φ90×10 Φ130×14 Φ190×14 Φ4×0....Read more -
Overview and application scope of precision phosphated tubes
Precision phosphated pipe is a new type of wear-resistant pipeline, which uses the spinning nesting composite technique. It is formed by the mechanical function of spinning nesting composite of two different raw material metal materials together, scientifically utilizing...Read more -
The Performance Influence and Rust Removal Method of Precision Galvanized Steel Pipe
In modern industrial production, more and more specialized equipment positions are widely used, and seamless steel pipes are a common type. It is worth mentioning that hot-dip galvanized seamless steel pipes have good performance, good quality, long service life, and hav...Read more -
Executive standards and quality appraisal methods for seamless steel pipes in China
Seamless steel pipes are widely used, how can the quality of seamless steel pipes be guaranteed? How to distinguish quality? What are the execution standards? Let's take a look together next. Executive standard for seamless steel pipes. ...Read more -
DIN2391 Galvanized hydraulic seamless steel pipe
DIN2391 series zinc plated hydraulic seamless steel pipes are mainly used for hydraulic systems, and users with high requirements for rust and corrosion prevention of the outer wall of the steel pipes. It is also particularly suitable for precision hydraulic seamless steel pipes used in any hydr...Read more -
What is pickling and passivation of steel pipes?
Comprehensive pickling and passivation of stainless steel, removing various oil stains, rust, oxide skin, solder joints and other dirt. After treatment, the surface is uniformly silver white, greatly improving the corrosion resistance of stainless steel, suitable for various stainless steel parts...Read more -
Quenching Technology for Cold Drawn Steel Pipe
Cold drawn steel pipe is a type of steel pipe, which is classified according to different production processes and is different from hot-rolled (expanded) pipes. It is formed through multiple passes of cold drawing during the process of expanding the blank or raw material tube, usually carried ou...Read more -
Selection, processing, and installation of hydraulic steel pipes
With the development of hydraulic technology, how to correctly select, process, and arrange hydraulic steel pipes to make hydraulic systems work more energy-efficient, reliable, and have a longer lifespan. Introduction With the development of hydraulic technology, how to correctly select, proces...Read more -
Method for Improving the Wear Resistance of the Inner Cavity of Cold Drawn Seamless Pipe
Cold drawn seamless pipes have the characteristics of no oxidation layer on the inner surface, no leakage under high pressure, precision machining, high glossiness, no deformation during cold drawing, no gap during expanding and flattening, and rust prevention treatment on the surface. They are ...Read more -
What are the standards for various seamless steel pipes in China
1. Seamless steel pipes for structural purposes (GB/T8162-1999) are seamless steel pipes used for general structures and mechanical structures. 2. Seamless steel pipes for fluid transportation (GB/T8163-1999) are general seamless steel pipes used for transporting fluids such as water, oil, and g...Read more
