In high-temperature industrial environments, selecting the right bushing material is critical to ensuring longevity, reducing wear, and avoiding costly downtime. VIIPLUS specializes in custom-engineered bushings tailored for extreme heat, offering alloys like SAE660 (C93200) tin bronze, C95400 aluminum bronze, and high-strength brass ZCuZn25Al16Fe3Mn3. This article dives deep into material properties, application-specific advantages, and data-driven comparisons to help you optimize performance under thermal stress.
Material Showdown: Tin Bronze vs. High-Strength Brass
PropertyZCuSn5Pb5Zn5 (Tin Bronze)ZCuZn25Al16Fe3Mn3 (High-Strength Brass)Tensile Strength200 MPa600–750 MPaYield Strength90 MPa300–400 MPaHardness (HB)590160–200Max Operating Temp260°C200°CCorrosion ResistanceExcellent (ideal for marine/chemical)Moderate (prone to dezincification)Cost30% higher than brassLower cost
Tin Bronze (ZCuSn5Pb5Zn5): Superior for wear resistance and corrosion in high-heat, chemically aggressive environments (e.g., steel mills, marine systems).
High-Strength Brass (ZCuZn25Al16Fe3Mn3): Higher load capacity but limited to moderate temperatures and dry/low-corrosion settings (e.g., construction machinery).
High-Temperature Applications: Matching Alloys to Use Cases
IndustryApplicationRecommended AlloyPerformance BenefitSteel ManufacturingRolling mill guides, furnace partsC95400 Aluminum BronzeRetains strength up to 400°C, resists oxidationAutomotiveEngine mounts, exhaust systemsSAE660 (C93200) Tin BronzeHandles thermal cycling and vibrationMarine EngineeringPropeller shafts, seawater valvesZCuSn5Pb5Zn5 Tin BronzeCorrosion resistance in saltwaterAerospaceLanding gear bushings, actuatorsC86300 Manganese BronzeHigh fatigue resistance at elevated temps
Chemical Composition & Performance Insights
Composition:
Cu: Balance
Sn: 4–6%, Pb: 4–6%, Zn: 4–6%
Trace elements (Ni, Fe, Sb): ≤2.5% collectively
Best For:
High sliding speeds (e.g., piston clutches, pump caps).
Applications requiring airtight casting (hydraulic hoists).
Composition:
Cu: 60–66%, Zn: 22–28%, Al: 4–7%, Fe: 2–4%, Mn: 1.5–4%
Best For:
Heavy-load, low-speed environments (e.g., crane slewing rings).
Cost-sensitive projects where extreme corrosion resistance isn’t critical.
Material Selection Guide for High-Temperature Bushings
Temperature > 200°C?
Yes → C95400 Aluminum Bronze (up to 400°C).
No → Proceed to question 2.
Corrosive Environment?
Yes → ZCuSn5Pb5Zn5 Tin Bronze.
No → ZCuZn25Al16Fe3Mn3 Brass for higher load capacity.
Cost vs. Performance: Striking the Right Balance
| Case Study: A steel plant using C95400 bushings in furnace rollers reduced replacements by 40% compared to standard brass, despite higher upfront costs.
Why VIIPLUS for High-Temperature Bushings? VIIPLUS’s expertise in high-temperature bushing materials ensures reliable performance in the most demanding environments. By leveraging alloys like tin bronze and aluminum bronze, industries can achieve longer service life, reduced maintenance, and higher ROI.
Keywords: High-temperature bushings, VIIPLUS tin bronze, C95400 aluminum bronze, ZCuZn25Al16Fe3Mn3, custom bronze bushings, high-strength brass bearings.
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