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C51000 Phosphor Bronze
CDA 510, CA51000, ASTM B139, QQ-B750 AMD 2, SAE J461, ASME SB171, AMS 4625 H, HARD DRAWN H04 TEMPER

* Hardness typical for 1" Half Hard (20%) Temper

**Mechanical Properties are typical for 1" Half Hard (20%) Temper

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 ASTM specification references.

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C51000 PHOSPHOR BRONZE possesses a higher yield strength than is readily available in most cast products. C51000 combines strength, toughness and good ductility with excellent resistance to fatigue. Typical applications for phosphor bronze include bearings, bushings, gears, pinions, shafts, thrust washers and valve parts. Can be readily brazed or soldered. Capacity for being cold worked is good. Conforms to specifications ASTM B139, QQ-B750, SAE J461, ASME SB171

C51000 Phosphor Bronze ASTM B139 AMS 4625
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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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