Copper Products

Copper sheets, plates, pipes, tubes, rods and alloys for industrial applications.

Which Copper Alloy is Best for Marine Heat Exchangers: Cupronickel vs Aluminum Bronze?

When selecting copper alloy for industrial applications, engineers and procurement professionals face numerous technical questions about standards, properties, and specifications. This comprehensive guide addresses the most frequently asked questions to help you make informed material decisions. What are the key differences between 90/10 Cupronickel (C70600) and 70/30 Cupronickel (C71500) for seawater piping? According to ASTM […]

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Copper Tube Capillary Brazing: Joint Design and Process Control 2026

The Critical Role of Capillary Brazing in Copper Tube Systems Capillary brazing (also called capillary soldering when using lower-temperature filler metals) is the primary joining method for copper tube systems in HVAC, plumbing, refrigeration, gas distribution, and industrial process piping. The process relies on capillary action to draw molten filler metal into the joint间隙 between

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Copper Nickel Alloy 90/10 vs 70/30: Selection for Marine Applications

Overview of Copper-Nickel Alloys for Marine Service Copper-nickel alloys have been the material of choice for seawater systems for over a century. The two most important grades – 90/10 (C70600) and 70/30 (C71500) – offer excellent seawater corrosion resistance, biofouling resistance, and good mechanical properties. Chemical Composition and Properties Comparison Property C70600 (90/10) C71500 (70/30)

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Copper Tube Flare Connections: Standards and Installation Guide 2026

Understanding Copper Tube Flare Connections Flare connections are one of the most reliable methods for joining copper tubes in refrigeration, HVAC, gas distribution, instrumentation, and hydraulic systems. The flare joint creates a metal-to-metal seal between the flared tube end and a matching conical seat in the fitting body. Unlike soldered joints, flare connections are mechanical

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