The selection of bellows depends on the specific requirements of the application. Brass bellows excel in cost-effectiveness and appearance, Tin-bronze bellows perform well in moderately corrosive environments, and Stainless steel bellows are unmatched in durability and high-stress applications.
Aspect | Brass Bellows | Tin-Bronze Bellows | Stainless Steel Bellows |
---|---|---|---|
Material Composition | Copper-zinc alloy (e.g., 60/40 ratio) | Copper-tin alloy (e.g., 88/12 ratio) | Austenitic steel (e.g., SS304, SS316) |
Manufacturing Method | Deep drawing, welding, or hydroforming | Precision stamping or brazing | Hydraulic forming or laser welding |
Flexibility | Moderate | High | Excellent |
Corrosion Resistance | Good in non-aggressive environments | Better in slightly acidic environments | Excellent in harsh conditions |
Parameter | Brass Bellows | Tin-Bronze Bellows | Stainless Steel Bellows |
---|---|---|---|
Operating Temperature | -40°C to 200°C | -40°C to 250°C | -200°C to 600°C |
Pressure Resistance | Low to medium | Medium | High |
Lifespan (cycles) | 1M - 1.5M | 1.5M - 2M | Over 3M |
Weight | Lightweight | Moderate | Heavier than alloys |
Bellows Type | Applications |
---|---|
Brass Bellows | HVAC systems, plumbing, and decorative applications |
Tin-Bronze Bellows | Marine engineering, electrical components, and moderately corrosive environments |
Stainless Steel Bellows | Aerospace, automotive exhaust systems, and high-pressure pipelines |