Corrosion resistance data for copper-nickel flanges must be considered in conjunction with specific alloy grades (e.g., Cu-Ni 90/10, 70/30), corrosion medium type, concentration, temperature, and stress conditions. The following are measured data and industry standard references based on typical ...

1. Performance limitations in high-temperature environments Strength decreases significantly with increasing temperature: Copper-nickel alloys (such as Cu-Ni 70/30) experience a reduction in tensile strength from 450 MPa to below 300 MPa when temperatures exceed 300°C, and exhibit increased creep ...

Copper-nickel flanges are widely used in marine engineering, chemical industry, shipbuilding, and seawater treatment. Their product advantages primarily lie in corrosion resistance, mechanical properties, processability, and overall cost-effectiveness, as detailed below: 1. Excellent resistance to ...

In the petrochemical industry, the performance differences between duplex steel tees and tees made of other materials primarily manifest in terms of strength, corrosion resistance, high-temperature resistance, machinability, and cost. The following is a detailed comparative analysis: 1. Strength and ...

The performance difference of flanges made of different materials in high temperature environment is mainly reflected in strength maintaining ability, oxidation resistance, creep resistance, thermal stability and medium compatibility, etc. The following analysis is carried out from the typical ...