Copper Alloy C96800-M01
Finish state
UNS C96800
M01 = as sand cast
Lowest-cost condition for lightly loaded parts or for stock that will be heat treated after rough machining.
Values for the M01 condition
Other C96800 tempers and conditions
C96800 is listed in 4 conditions; see the grade overview at C96800.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution heat treated | Softest, most ductile condition — used for straightening, sizing or rough machining before spinodal aging. | 240 | 470 | 25 | 140 HB | 6 % IACS |
M01This page As sand cast | Lowest-cost condition for lightly loaded parts or for stock that will be heat treated after rough machining. | 310 | 500 | 12 | 170 HB | 7 % IACS |
TX00 | Choose when impact toughness, dimensional stability at elevated temperature or reduced notch sensitivity matters more than peak hardness. | 550 | 690 | 10 | 23 HRC | 10 % IACS |
TX00Default Solution treated and spinodally hardened | Standard supplied condition — peak strength, hardness and wear/galling resistance for bearings, bushings and gears. | 655 | 790 | 6 | 30 HRC | 8 % IACS |
What is C96800-M01?
C96800-M01 is C96800 supplied in the M01 condition — lowest-cost condition for lightly loaded parts or for stock that will be heat treated after rough machining. C96800-M01 has a yield strength of 310 MPa (45 ksi) and a tensile strength of 500 MPa (72.5 ksi) — stronger than 64% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 140 GPa (20.3 Msi). C96800-M01 has a density of 8.9 g/cm³ (0.322 lb/in³), heavier than 77% of copper alloy grades. It melts at 1,030°C (1,886 °F). TX00 is the default condition FabDigit quotes; M01 is available on request or by drawing note.
Advantages
- Stiff — 140 GPa (20.3 Msi), better than 97% of copper alloy grades
- Good corrosion resistance — 76/100, better than 91% of copper alloy grades
Limitations
- Poor heat conductor — 35 W/m·K (20.2 BTU/hr·ft·°F), worse than 88% of copper alloy grades
- High embodied carbon — 5.2 kg CO₂/kg, worse than 88% of copper alloy grades
- Low electrical conductivity — 7 % IACS, worse than 86% of copper alloy grades
C96800-M01 properties
Typical room-temperature values for C96800-M01; 10 are specific to this condition. Other listed values are C96800 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C96800-M01 has a density of 8.9 g/cm³ (0.322 lb/in³), heavier than 77% of copper alloy grades. It melts at 1,030°C (1,886 °F).
Mechanical15
C96800-M01 has a yield strength of 310 MPa (45 ksi) and a tensile strength of 500 MPa (72.5 ksi) — stronger than 64% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 140 GPa (20.3 Msi).
Thermal6
C96800-M01 is rated for continuous service to 200°C (392 °F). It conducts heat at 35 W/m·K (20.2 BTU/hr·ft·°F), worse than 88% of copper alloy grades. Thermal expansion is 16.5 µm/m·K (9.17 µin/in·°F).
Electrical3
C96800-M01 conducts electricity at 7 % IACS, worse than 86% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (76/100), better than 91% of copper alloy grades.
Sustainability4
Producing a kilogram of C96800-M01 takes about 72 MJ of energy and emits 5.2 kg of CO₂ — more than 86% of copper alloy grades. Typical recycled content is 25%.
Manufacturability8
C96800-M01's machinability is good (60/100, better than 74% of copper alloy grades); weldability poor (30/100); formability poor (25/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C96800-M01
Is C96800 easy to machine?
Machines like a hard bronze — rigid setups, sharp carbide inserts, moderate speed with positive rake and generous coolant; chips are short and the aged material is abrasive on tool edges.
Can C96800 be welded?
Fusion welding is not recommended (hot-crack sensitive and it destroys the spinodal structure in the HAZ); repair by mechanical joining or re-solution-treat and re-age if welding is unavoidable.
Can C96800 be formed, bent or molded?
Cast to shape (continuous, centrifugal or sand) then solution treat, quench and spinodal age; cold forming only in the soft TB00 condition.
What surface finishes work on C96800?
Takes a fine polish for bearing surfaces; can be electroless-nickel or chrome plated, but no anodizing — protect against ammonia-bearing environments.
C96800 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 |
|---|---|---|
| Ni | 9.5 – 10.5 | 10 |
| Sn | 7.5 – 8.5 | 8 |
| Nbgrain refiner | 0.1 – 0.3 | 0.2 |
| Mgdeoxidizer | ≤ 0.15 | 0.08 |
| Fe | ≤ 0.5 | — |
| Zn | ≤ 0.5 | — |
| Mn | ≤ 0.3 | — |
| Pb | ≤ 0.02 | — |
| S | ≤ 0.05 | — |
| Curemainder, ~81% | balance | — |
C96800-M01 — frequently asked
What is C96800-M01 used for?
C96800-M01 is typically used for heavy-duty bearings, worm gears, bushings and wear plates. In short: beryllium-free high-strength casting; spinodal-hardened bearing alloy; bronze-like wear resistance.
What is the yield strength of C96800-M01?
C96800-M01 has a typical yield strength of 310 MPa (45 ksi) and a tensile strength of 500 MPa (72.5 ksi) — stronger than 64% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is C96800-M01 easy to machine?
Reasonably — machinability is rated good (60/100, better than 74% of copper alloy grades). Machines like a hard bronze — rigid setups, sharp carbide inserts, moderate speed with positive rake and generous coolant; chips are short and the aged material is abrasive on tool edges.
Can C96800-M01 be welded?
Not readily — weldability is rated poor (30/100). Fusion welding is not recommended (hot-crack sensitive and it destroys the spinodal structure in the HAZ); repair by mechanical joining or re-solution-treat and re-age if welding is unavoidable.
What surface finishes work on C96800-M01?
Takes a fine polish for bearing surfaces; can be electroless-nickel or chrome plated, but no anodizing — protect against ammonia-bearing environments.
Can C96800-M01 be formed, bent or molded?
Cast to shape (continuous, centrifugal or sand) then solution treat, quench and spinodal age; cold forming only in the soft TB00 condition.
What is the maximum service temperature of C96800-M01?
C96800-M01 is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C96800-TX00 and C96800-TB00?
TX00 is the default condition — standard supplied condition — peak strength, hardness and wear/galling resistance for bearings, bushings and gears. TB00: softest, most ductile condition — used for straightening, sizing or rough machining before spinodal aging. Yield strength is 655 MPa in TX00 versus 240 MPa in TB00.
Sources
- ASTM B505/B505M — Continuous Cast Copper Alloys — ASTM International (2022)
- ASTM B929 — Continuous Cast Copper-Nickel-Tin Spinodal Alloys — ASTM International (2021)
- CDA Alloy Database — C96800 — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- Cu-Ni-Sn spinodal alloy bar and bushing datasheets — Materion / cast bronze producers (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.