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2026-02-04Product News
How to confirm the specifications of cold-drawn steel pipes?
Cold-drawn steel pipes are widely used in machinery manufacturing, automotive components, hydraulic and pneumatic systems due to their high dimensional accuracy, tight tolerances, and excellent surface finish. However, incorrect specification confirmation often leads to assembly failure, performance mismatch, rework, and schedule delays. This article will briefly introduce how to confirm the specifications of cold-drawn steel pipes.
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2026-02-03Product News
Square tube vs round tube: selection guide
Choosing between square hollow sections (SHS) and circular hollow sections (CHS) is a common challenge in construction, machinery manufacturing, and infrastructure projects. An incorrect choice may lead to higher costs, structural inefficiency, installation difficulties, or safety risks. This guide provides a clear selection framework to help you decide quickly and professionally based on real engineering scenarios.
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2026-02-02Product News
What are the welding processes for stainless steel pipes?
In stainless steel pipe production, a flat steel strip is first formed into a cylindrical shape. After forming, the strip edges must be welded together to create a continuous tube. The quality of this longitudinal weld has a decisive influence on pipe formability, burst strength, and downstream processing performance. Therefore, selecting an appropriate welding technology is critical to meeting the stringent quality requirements of modern manufacturing. Currently, the most widely used welding processes for stainless steel pipes include high-frequency (HF) welding, gas tungsten arc welding (GTAW / TIG), and laser welding.
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2026-01-29Product News
Square tube and round tube cross-sectional comparison
In engineering design, comparing round tubes and square tubes with the same cross-sectional area is essentially an evaluation of structural efficiency under equal material usage. Since material strength remains constant, the differences in mechanical performance arise purely from cross-sectional geometry. These differences are well-established, quantitatively verifiable, and carry strong engineering guidance value for structural selection.
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2026-01-28Product News
What is the service life of galvanized steel coils?
The service life of galvanized steel coils typically ranges from 10 to 50 years, depending on the zinc coating thickness, exposure environment, and application conditions. Here's an overview of the service life of galvanized steel coils.
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2026-01-27Product News
What are steel coils used for?
Steel coils are continuous, flat steel products produced by hot rolling or cold rolling steel slabs into long, thin sheets and winding them into coils. They are one of the most widely used steel forms in global manufacturing, construction, energy, automotive, and appliance industries due to their versatility, consistency, and cost efficiency. This article will briefly introduce what are steel coils used for.
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2026-01-21Product News
Seamless pipe thickness chart
The thickness of a seamless steel pipe is a critical engineering parameter that directly influences pressure resistance, structural strength, weight, cost, and application suitability. In demanding industries such as oil and gas, boilers, power generation, chemicals, and machinery manufacturing, seamless pipes are widely preferred due to their weld-free structure, high density, and stable performance. Among all dimensional parameters, wall thickness plays a decisive role in both design calculations and procurement decisions.
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2026-01-20Product News
How to prevent backside oxidation during stainless steel pipe welding?
Backside oxidation is a common and critical issue during stainless steel pipe welding, particularly in petrochemical, chemical, and power plant construction. Oxidation on the inner surface of the weld and heat-affected zone (HAZ) can significantly reduce corrosion resistance and compromise long-term service performance. Because the inner wall of stainless steel pipes cannot be pickled and passivated after welding, preventing backside oxidation during the welding process itself becomes essential. This article analyzes the main causes of backside oxidation and introduces effective welding process improvements to achieve clean, silver-white weld roots.
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2026-01-19Product News
2026 purchasing guide for steel pipe piles by United Steel Industry
In large-scale infrastructure and marine engineering projects, steel pipe piles are not simply structural components—they are high-risk, high-value procurement items. In 2026, buyers are under increasing pressure to balance technical compliance, delivery reliability, and total lifecycle cost. At United Steel Industry, we work closely with global EPC contractors, infrastructure developers, and marine engineering firms, supporting steel pipe pile projects from technical review to final delivery. This buyer-focused guide outlines how procurement teams can make informed, risk-controlled purchasing decisions.
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2026-01-15Product News
Frequently asked questions about steel pipe piles
Steel pipe piles are critical structural elements used in foundations for offshore platforms, jetties, wind turbines, and other civil and industrial projects. Understanding their types, grades, and installation methods is essential for engineers, contractors, and project managers. This guide answers common questions about steel pipe piles, including friction piles, end-bearing piles, open-end and closed-end designs, and potential installation issues.
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2026-01-14Product News
Steel pipe pile sizes and standards
A steel pipe pile is a deep foundation element made from circular steel pipes or steel tubes, widely used in civil engineering, infrastructure, and marine construction. Due to their high structural strength, uniform material quality, and excellent seismic performance, steel pipe piles are commonly applied in projects requiring reliable load-bearing foundations.
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2026-01-13Product News
How to inspect galvanized steel pipe weld?
Galvanized steel pipes combine the durability of welded steel pipes (e.g., ERW pipes) with corrosion resistance from hot-dip or electro-galvanizing. Proper weld inspection ensures mechanical integrity, safety, and long-term service.
