Name: Cast Bronze Solid Bar
Brand: Diversified Bronze & Manufacturing

Part #	Alloy	O.D.	Cut Length	Qty	Request Quote

C95400, C93200, and C86300 are highlighted below as the stocking alloys for Cast Bronze Solid Bar Stock.

Property	C95400	C93200	C86300
Material Identification
Material Type	Cast Aluminum Bronze	Cast High Leaded Tin Bronze	Cast Manganese Bronze
ASTM Specification	B505	B505	B505
SAE Equivalent	J461, J462	SAE 660	SAE 430B
Mechanical Properties
Tensile Strength	85,000 PSI min	35,000 PSI min	110,000 PSI min
Yield Strength	32,000 PSI min	20,000 PSI min	60,000 PSI min
Elongation	12% min	10% min	12% min
Hardness (Brinell)	170 typical	65 typical	225 typical
Machinability	60%	70%	80%
Physical Properties
Density	7.45 g/cm³	8.91 g/cm³	7.83 g/cm³
Chemistry
Copper (Cu)	83.0% min	81.0–85.0%	60.0–66.0%
Tin (Sn)	—	6.3–7.5%	—
Lead (Pb)	—	6.0–8.0%	—
Zinc (Zn)	—	1.0–4.0%	22.0–28.0%
Aluminum (Al)	10.0–11.5%	—	5.0–7.5%
Iron (Fe)	3.0–5.0%	—	2.0–4.0%
Manganese (Mn)	—	—	2.5–5.0%

Property	SAE 841	SAE 863
Material Identification
Material Type	Oil-Impregnated Sintered Bronze	Oil-Impregnated Sintered Iron-Copper
ASTM Specification	B438 Grade 1 Type II	B439 Grade 4
Self-Lubricating	Yes	Yes
Mechanical Properties
Tensile Strength	14,000 PSI	22,000 PSI
Yield Strength	11,000 PSI	22,000 PSI
Elongation	1%	1%
Apparent Hardness	Rockwell H-45	Rockwell F-35
K Strength Constant	26,500	30,000
Physical Properties
Density	6.4–6.8 g/cm³	5.8–6.2 g/cm³
Porosity (oil by volume)	19% min	19% min
Chemistry
Copper (Cu)	Balance	18–22%
Tin (Sn)	9.5–10.5%	—
Iron (Fe)	1.0% max	Balance
Carbon/Graphite (C)	0.3% max	0.3% max
Equivalent Standards
ASTM	B438-13 Grade 1 Type II	B439-12 Grade 4
MPIF	CT-1000-K26	FC-2000-K30
Military	MIL-B-5687D Type 1 Grade 1	MIL-B-5687D Type 2 Grade 4

Frequently Asked Questions

Expert answers to common technical questions about cast bronze solid bar stock.

What are the recommended speeds and feeds for machining aluminum bronze (C95400)?

For C95400 aluminum bronze, standard practice suggests starting with surface speeds of 150–300 SFM using carbide tooling. While C95400 has a machinability rating of 60 (relative to free-cutting brass at 100), it is abrasive and generates significant heat.

Start with moderate feed rates of 0.005"–0.015" IPR (Inches Per Revolution). It is critical to use positive rake angles, chip breakers, and rigid setups. Unlike leaded bronzes, C95400 produces continuous, stringy chips rather than broken chips. Flood coolant is highly recommended to manage heat and extend tool life.

Which bronze alloy should I use for bearings under heavy loads | C93200 or C95400?

C95400 aluminum bronze is superior for heavy loads, offering a minimum yield strength of 32,000 psi (Continuous Cast) compared to C93200's 20,000 psi.

However, C93200 (SAE 660) offers superior anti-friction properties due to its lead content, making it the better choice for moderate loads or applications where lubrication may be inconsistent. Choose C95400 for high-load, low-speed, well-lubricated conditions; choose C93200 for standard general-purpose bushings where conformability and embeddability are required.

What bronze alloy is best for marine and saltwater applications?

C95400 aluminum bronze is a standard choice for marine environments due to the formation of a protective alumina oxide film that resists corrosion and cavitation.

Technical Note: For critical saltwater immersion, it is recommended to specify Heat Treated (T50) C95400 or use Nickel Aluminum Bronze (C95500). Standard as-cast C95400 can be susceptible to "dealuminization" (selective corrosion) over long periods in seawater if the microstructure contains the Gamma-2 phase. Heat treatment eliminates this risk.

What is SAE 660 bronze and how does it relate to C93200?

SAE 660 and UNS C93200 are the same alloy. SAE 660 is the traditional Society of Automotive Engineers designation, while C93200 is the current Unified Numbering System designation used in ASTM B505 standards.

Both refer to High-Leaded Tin Bronze with a nominal composition of 83% Copper, 7% Tin, 7% Lead, and 3% Zinc (commonly known as "83-7-7-3"). It is the industry standard for general-purpose bearing applications.

Cast Bronze Solid Bar | C95400, C93200 & C86300

Quick Start

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Cast Bronze Alloy Comparison

Sintered Bronze Alloy Comparison

Frequently Asked Questions