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Stainless Steel Custom Reinforced Bellows
| Metal bellows are flexible connectors that help absorb vibration, thermal expansion, or misalignment in piping and mechanical systems. They are often used where rigid connections would otherwise create stress or leakage. At YDCT, we offer different types of bellows that can be tailored for a range of pressures, temperatures, and movements. While some applications need only a simple single-layer bellow, others require more robust multi-layer or reinforced designs to meet heavier demands. | |||||||||
| Material Selection: Parameter Introduction | |||||
|---|---|---|---|---|---|
| Material | Temperature (°C) | Characteristic | Heat resistance | Durability | Corrosive |
| SUS304L | -196 ~ 400 | Austenite stainless steel | B | B | B |
| SUS316L | -250 ~ 450 | Corrosion resistance, heat resistance, excellent resistance to hydrogen chloride | B | B | B+ |
| Precipitation hardening stainless steel | |||||
| AM350 | -200 ~ 315 | High strength, weak magnetism, general application, poor resistance to corrosive gases | B | A+ | B |
| Nickel-based heat-resistant, corrosion-resistant steel | |||||
| Hastelloy C-276 / Hastelloy C-22 | -200 ~ 700 | Excellent corrosion resistance, strong anti-oxidation and anti-halide capabilities | A | A | A |
| Inconel 625 / Inconel 718 | -200 ~ 980 / -253 ~ 700 | Acid resistance, high temperature resistance | A | A | A |
| Haynes 242 | -251 ~ 698 | Strong anti-oxidation capability, excellent stability in high-temperature environments | A | A+ | A+ |
Rating Key: A+: Excellent, A: Good, B: Fair / Acceptable, C: Poor  Single-layer vs. Double-layer Bellows  Multi-layer Bellows Cross-section The wave height, wall thickness, and number of layers decide how a metal bellow works. A higher wave gives more flexibility and movement, but the pressure resistance becomes lower. A thicker wall can take more pressure but makes the bellow harder to move. We usually choose the structure based on your working condition. Single-layer bellows are light and flexible. Multi-layer types are stronger and last longer, but they are heavier and cost more. They are used in systems with high temperature, vibration, or pressure changes. YDCT can produce bellows by hydraulic forming, roll forming, or edge welding. Each method fits different sizes and applications. Hydraulic and roll forming are common for exhaust or industrial use, while edge-welded bellows are used for vacuum or precision equipment. Ends can be made with flanges, threaded fittings, or welded pipes. YDCT can also follow your drawings or samples. The temperature and pressure range depends on material and layer number. Our factory makes bellows for automotive exhaust, industrial machinery, HVAC, and other systems. The products are made under ISO 9001 quality control and designed for long working life without leakage or pollution. | |||||
| Material Selection: Parameter Introduction | |||||
|---|---|---|---|---|---|
| Material | Temperature (°C) | Characteristic | Heat resistance | Durability | Corrosive |
| SUS304L | -196 ~ 400 | Austenite stainless steel | B | B | B |
| SUS316L | -250 ~ 450 | Corrosion resistance, heat resistance, excellent resistance to hydrogen chloride | B | B | B+ |
| Precipitation hardening stainless steel | |||||
| AM350 | -200 ~ 315 | High strength, weak magnetism, general application, poor resistance to corrosive gases | B | A+ | B |
| Nickel-based heat-resistant, corrosion-resistant steel | |||||
| Hastelloy C-276 / Hastelloy C-22 | -200 ~ 700 | Excellent corrosion resistance, strong anti-oxidation and anti-halide capabilities | A | A | A |
| Inconel 625 / Inconel 718 | -200 ~ 980 / -253 ~ 700 | Acid resistance, high temperature resistance | A | A | A |
| Haynes 242 | -251 ~ 698 | Strong anti-oxidation capability, excellent stability in high-temperature environments | A | A+ | A+ |
Rating Key: A+: Excellent, A: Good, B: Fair / Acceptable, C: Poor Single-layer vs. Double-layer Bellows Multi-layer Bellows Cross-section The wave height, wall thickness, and number of layers decide how a metal bellow works. A higher wave gives more flexibility and movement, but the pressure resistance becomes lower. A thicker wall can take more pressure but makes the bellow harder to move. We usually choose the structure based on your working condition. Single-layer bellows are light and flexible. Multi-layer types are stronger and last longer, but they are heavier and cost more. They are used in systems with high temperature, vibration, or pressure changes. YDCT can produce bellows by hydraulic forming, roll forming, or edge welding. Each method fits different sizes and applications. Hydraulic and roll forming are common for exhaust or industrial use, while edge-welded bellows are used for vacuum or precision equipment. Ends can be made with flanges, threaded fittings, or welded pipes. YDCT can also follow your drawings or samples. The temperature and pressure range depends on material and layer number. Our factory makes bellows for automotive exhaust, industrial machinery, HVAC, and other systems. The products are made under ISO 9001 quality control and designed for long working life without leakage or pollution. | |||||
Leading Manufacturer of Stainless Steel Exhaust Flex Pipes and Bellows Assemblies
YDCT provides OE replacement exhaust components and standardized parts with flexible OEM customization, including logo marking, material and color options, and drawing-based production with MOQ.
Global Shipping & Payment Flexibility
Multiple shipping options (EXW, FOB, CIF) and secure international payment methods (T/T, PayPal, LC) tailored to your business.
Factory-Direct Reliability
In-house production ensures stable monthly output, short lead times, and strict quality control without middlemen.
Wholesale Pricing for Bulk Orders
Optimized for B2B orders. Enjoy competitive factory rates and custom solutions for OEM/ODM partnerships.
