Copper Alloy C95300
UNS C95300
C95300 is a copper-aluminium-iron casting bronze with composition slightly modified from C95200, used where wear resistance matters more than peak tensile strength.
Reference datasheet — C95300 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the M01 condition
C95300 tempers and conditions
C95300 is supplied in 3 conditions, soft to hard. M01 is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
M01Default As sand cast | Standard stocked condition for gears, bushings and valve parts where 450 MPa UTS and high ductility are sufficient. | 170 | 450 | 25 | 110 HB | 13 % IACS |
As continuous cast | Pick for round bar, sleeves and thick-wall bushing stock: denser, finer structure gives modestly higher strength and hardness than sand castings. | 195 | 480 | 22 | 120 HB | — |
quench hardened and temper annealed | Choose when higher strength, hardness and wear resistance are required for heavily loaded gears, worm wheels and bearing surfaces; ductility and impact toughness drop. | 330 | 620 | 15 | 190 HB | 13 % IACS |
What is C95300?
C95300 is a copper-aluminium-iron casting bronze with composition slightly modified from C95200, used where wear resistance matters more than peak tensile strength. Typical as-cast properties are 450 MPa tensile strength, 170 MPa yield, 25 % elongation, 110 HB (62 HRB), 110 GPa elastic modulus, 58.6 W/m·K thermal conductivity and 13 % IACS, with service to about 300 °C. It is weldable (weldability score 70) and corrosion resistant (score 72), but machinability is low at 48 and it is supplied only as sand, centrifugal or continuous castings. C95300 has a density of 7.53 g/cm³ (0.272 lb/in³), lighter than 96% of copper alloy grades. It melts at 1,040°C (1,904 °F). C95300 has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 450 MPa (65.3 ksi) — weaker than 62% of copper alloy grades. Elongation at break is 25% and the elastic modulus is 110 GPa (16 Msi).
What is C95300 used for?
- gears
- bearings
- wear plates
Advantages
- Lightweight — 7.53 g/cm³ (0.272 lb/in³), better than 96% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- Readily welded — 70/100, better than 85% of copper alloy grades
- Good corrosion resistance — 72/100, better than 84% of copper alloy grades
Limitations
- Limited formability — 15/100, worse than 79% of copper alloy grades
C95300 properties
Typical room-temperature values for C95300-M01; bars are the position among copper alloy grades.
Physical3
C95300 has a density of 7.53 g/cm³ (0.272 lb/in³), lighter than 96% of copper alloy grades. It melts at 1,040°C (1,904 °F).
Mechanical14
C95300 has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 450 MPa (65.3 ksi) — weaker than 62% of copper alloy grades. Elongation at break is 25% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
C95300 is rated for continuous service to 300°C (572 °F). It conducts heat at 58.6 W/m·K (33.9 BTU/hr·ft·°F), worse than 63% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
C95300 conducts electricity at 13 % IACS, worse than 58% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), better than 84% of copper alloy grades.
Sustainability4
Producing a kilogram of C95300 takes about 50 MJ of energy and emits 3.5 kg of CO₂ — less than 89% of copper alloy grades. Typical recycled content is 60%.
Manufacturability8
C95300's machinability is fair (48/100, better than 68% of copper alloy grades); weldability very good (70/100); formability poor (15/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the copper alloy family
Yield strength against density for every copper alloy grade FabDigit runs. C95300 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with C95300
Is C95300 easy to machine?
Machines as a tough, gummy alloy — rigid setups, positive-rake carbide, moderate speeds and generous coolant; expect ~55 % of AISI 1212 rates and chip-breaking rather than free chips.
Can C95300 be welded?
Weldable by GTAW/GMAW with ERCuAl-A2 filler; remove the alumina film mechanically or with a suitable flux, preheat heavy sections lightly and avoid excessive interpass heat.
Can C95300 be formed, bent or molded?
Casting alloy only (sand, centrifugal, continuous); use bottom gating and generous filters/risers to avoid alumina dross and shrinkage in heavy sections.
C95300 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Al | 9 – 11 | 10 |
| Fe | 0.8 – 1.5 | 1.1 |
| CuCu + named elements 99.0 % min per ASTM B148 | ≥ 86 (balance) |
What surface finishes work on C95300?
Not anodizable; take a good mechanical polish, accepts electroless nickel or chrome plating after activation, and self-passivates to a stable brown-gold patina in service.
Surface treatments FabDigit runs on copper alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
How much does C95300 cost?
C95300 is a high-cost copper alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
C95300 — frequently asked
What is C95300 used for?
C95300 is typically used for gears, bearings and wear plates. In short: wear-resistant aluminium bronze; 300 °C service capability; weldable but gummy to cut.
What is the yield strength of C95300?
C95300 has a typical yield strength of 170 MPa (24.7 ksi) and a tensile strength of 450 MPa (65.3 ksi) — weaker than 62% of copper alloy grades. Strength varies by condition: see the 3 listed tempers.
Is C95300 easy to machine?
Reasonably — machinability is rated fair (48/100, better than 68% of copper alloy grades). Machines as a tough, gummy alloy — rigid setups, positive-rake carbide, moderate speeds and generous coolant; expect ~55 % of AISI 1212 rates and chip-breaking rather than free chips.
Can C95300 be welded?
Yes — weldability is rated very good (70/100). Weldable by GTAW/GMAW with ERCuAl-A2 filler; remove the alumina film mechanically or with a suitable flux, preheat heavy sections lightly and avoid excessive interpass heat.
What surface finishes work on C95300?
Not anodizable; take a good mechanical polish, accepts electroless nickel or chrome plating after activation, and self-passivates to a stable brown-gold patina in service.
Can C95300 be formed, bent or molded?
Casting alloy only (sand, centrifugal, continuous); use bottom gating and generous filters/risers to avoid alumina dross and shrinkage in heavy sections.
What is the maximum service temperature of C95300?
C95300 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C95300-M01 and C95300-TQ50?
M01 is the default condition — standard stocked condition for gears, bushings and valve parts where 450 MPa UTS and high ductility are sufficient. TQ50: choose when higher strength, hardness and wear resistance are required for heavily loaded gears, worm wheels and bearing surfaces; ductility and impact toughness drop. Yield strength is 170 MPa in M01 versus 330 MPa in TQ50.
How much does C95300 cost?
C95300 is a high-cost copper alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM B148 — Standard Specification for Aluminum-Bronze Sand Castings — ASTM International (2019)
- Copper Alloy C95300 alloy datasheet (properties, machinability, conductivity) — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- GB/T 1176 (ZCuAl10Fe3 equivalent) — SAC / (2013)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.