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C18000 Chromium Nickel Silicon Copper
CDA 180, CA18000, RWMA CLASS 3, BERYLLIUM-FREE COPPER, MALLORY 150

Mechanical values above are typical for 1" solid diameter Hard (35%) Temper

*Hardness conversions are approximate

**Test values are nominal approximations and depend on specimen size and orientation

The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable A.S.T.M. specification references.

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C18000 Chromium Nickel Silicon Copper RWMA Class 3 is a very hard heat treatable copper with moderate electrical conductivity. This alloy is utilized when a combination of very good mechanical strength along with moderate electrical and thermal conductivity are required. C18000 offers excellent value for the properties it offers. C18000 is a viable substitute for C17500 and C17510 in many applications. high hardness makes them ideal for electrodes for spot and seam welding of high resistance materials such as stainless steels, nichrome, inconel, and monel metal. As a casting, they are used for flash, butt and projection welding electrodes and fixtures. Other uses are welding gun components, seam welding bearing and other current carrying structural parts.

C18000 Copper Forging.jpg

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What's Driving
Metal Prices

Factors creating the on-going surge in copper prices and base metal prices.

The U.S. imposed a 50% Section 232 tariff on the copper content of semi-finished and derivative copper products, effective August 1, 2025. These tariffs aim to bolster domestic production but create complexities for businesses in pricing, sourcing, and compliance, affecting global copper markets. 

In addition copper costs are soaring due to massive demand from the energy transition (EVs, renewables, grid) and AI data centers colliding with slow mine supply growth, production disruptions (labor, technical issues), aging mines, and government policies like tariffs, creating a structural supply deficit. 

Tin prices jumped to a record level due to a severe, ongoing global supply squeeze from mine disruptions (DRC, Myanmar, Indonesia) and increasing demand driven by its critical role in electronics (solder), green energy tech, and packaging, creating a significant market deficit and attracting speculative investment. Supply chain issues, including export permit delays and political instability in key producing regions, combined with growing recognition of tin's necessity for the energy transition, fueled a rally to multi-year highs in late 2025 and early 2026. 

Nickel prices are rising due to anticipated supply cuts from major producer Indonesia, tighter quotas, increased demand from stainless steel and EV battery sectors (despite some LFP shifts), speculative buying, and broader market strength in metals, with investors reacting to policy signals and potential disruptions.

metals@anchorbronze.com

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