2026-01-20 1. Welding cracks in stainless steel pipes is caused by overheating. Hot cracks are cracks that occur during the high-temperature stage of the welding cooling process and mainly exist in the weld metal. A small number also occur near the joint, and they are classified as crystallization (solidificat
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2026-01-19 The main standards for St52.4 cold-drawn precision seamless steel pipes include the following:First, what are the main standards for St52.4 cold-drawn precision seamless steel pipes?St52.4 cold-drawn precision seamless steel pipes typically follow the following main standards:1) DIN 2391: This is a
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2026-01-16 First, what are the mechanical properties of SA106B seamless steel pipe?SA106B seamless steel pipe exhibits excellent mechanical properties, including high strength, high yield strength, and good toughness. Its main mechanical property indicators are as follows: Tensile strength: ≥415MPa, Yield stre
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2026-01-15 Coated steel pipes, also known as plastic-coated pipes, steel-plastic composite pipes, or plastic-coated composite steel pipes, are steel-plastic composite pipes formed by fusing a layer of plastic anti-corrosion coating onto the inner and outer surfaces of a steel pipe through processes such as spr
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2026-01-14 First, the Material Properties of Q960C Seamless Steel PipesQ960C belongs to high-strength low-alloy structural steel. Its numerical designation "960" indicates that its yield strength is not less than 960 MPa. This steel, through the addition of microalloying elements and the use of controlled roll
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2026-01-13 First, choose a suitable storage location that is clean, well-ventilated, and free of debris and harmful gases. Keep the steel surface clean to prevent corrosion. For high-priced metal products, consider storing them in a sealed container, but ensure adequate ventilation. For precision steel pipes,
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2026-01-12 First, what are the core criteria for selecting follow-up tool holders in seamless steel pipe fitting processing?1. Selection Based on the Structural Parameters of Seamless Steel Pipe Fittings(1) Pipe Diameter Compatibility: The opening and closing range of the follow-up tool holder's support claws
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2026-01-09 In the production system of seamless steel pipes, the pre-galvanizing pre-treatment process is the "first line of defense" to ensure coating quality. Its core task is to thoroughly remove oil, scale, rust, dust, and other impurities from the surface and inner wall of the steel pipe, creating a clean
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