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Help CenterLaser-cut Circular Flange | Pipe Connection Fitting, Customizable in Stainless Steel or Carbon Steel as Required
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Laser-cut circular flange - A guide to customizing high-efficiency and precise pipe connection fittings
Hello everyone, I'm Xiao Li. I've been in charge of procurement at a medium-sized valve manufacturing company for several years. Recently, our company received a large project that requires a large number of circular flanges. Moreover, the materials are required to be all stainless steel or carbon steel, and the size, hole position, and thickness need to be customized according to the actual drawings. At first, we hesitated: should we choose traditional stamping and welding or go straight for laser cutting? After multiple comparisons, we finally chose laser cutting. Today, I'll share this "practical experience" with you. By the way, I'll teach you how to select a suitable custom manufacturer for pipe connection fittings to make it more SEO-friendly!
1. Why choose laser-cut circular flanges?
High precision: The error of laser cutting is basically within ±0.1mm. The sealing surface and bolt hole positions of the flange are formed in one go, avoiding post-processing.
Fast delivery: From the CAD drawing to the finished product, the goods can be shipped in as fast as 48 hours, greatly shortening the project cycle.
Non-destructive to materials: Laser cutting is a non-contact processing method with a small heat-affected zone, which can fully preserve the corrosion resistance of stainless steel and the strength of carbon steel.
Complex shapes: Whether it's a single-hole, double-hole, multi-hole, or reinforced structure, laser cutting can handle it easily to meet "non-standard" requirements.
"Previously, we used stamping. Not only was the mold cost high, but the offset of the hole positions often led to rework. After switching to laser cutting, it's formed in one go, saving time and effort."
—— Project Manager Mr. Zhang
2. Choose the right material to match the working conditions
| Material | Applicable scenarios | Key advantages |
|---|---|---|
| Stainless steel (304/316) | Chemical, marine, food, pharmaceutical industries | Corrosion-resistant, high-temperature resistant, easy to clean |
| Carbon steel (Q235, 20#) | Petroleum, natural gas, heating, pressure vessels | High strength, low cost, good weldability |
Tip: If the site is often exposed to strong acids and alkalis, it is recommended to choose 316L (low-carbon) stainless steel to further reduce the risk of intergranular corrosion.
3. Customize as needed: Process and key points
Drawing confirmation: Provide CAD/SolidWorks files and clarify the outer diameter, inner diameter, thickness, hole diameter, hole position, and flange surface processing (plane, groove, welding groove).
Material selection: Select stainless steel or carbon steel according to the medium, temperature, and pressure, and confirm whether surface treatment (sandblasting, polishing, galvanizing) is required.
Process review: The manufacturer's technical team will conduct a feasibility analysis of laser cutting on the drawings, including thermal deformation, material utilization, and cutting path optimization.
Sample confirmation: Make the first sample, check the dimensions, hole positions, and weld quality. After passing the inspection, start mass production.
Quality inspection: Conduct a full inspection before leaving the factory, including dimensional inspection, hardness testing, and penetrant testing to ensure that each piece meets the GB/T standard.
Our partner manufacturers provide third-party inspection reports before each batch leaves the factory, which gives us more confidence when bidding.
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