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.
Manufacturing Differences
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
Technical Specifications
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
Applications
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
Industry-leading supplier of exhaust flex pipe, metal bellows, and clamps, with 32 years of professional manufacturing experience. Large-volume shipments at more favorable prices.
CONTACT INFORMATION
Address：HengQianKou Industrial Zone, ZheJiang, China