Copper Alloy C92600-M02
Heat-treated state
UNS C92600
M02 = as centrifugally cast
Choose for rings, sleeves and large bushings needing dense, sound wall sections (ASTM B271).
Values for the M02 condition
Other C92600 tempers and conditions
C92600 is listed in 5 conditions; see the grade overview at C92600.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
M01Default As sand cast | Standard ASTM B584 sand-cast condition for valve bodies, pump housings and general pressure castings. | 138 | 303 | 30 | 72 HB | 11.5 % IACS |
As investment cast | For small, complex near-net-shape parts with tight tolerance and fine surface finish. | 145 | 305 | 24 | 74 HB | 11.5 % IACS |
As plaster cast | Use for repeat production of small pressure parts where finer grain and better surface than sand casting are wanted (ASTM B806). | 150 | 310 | 22 | 78 HB | 11.5 % IACS |
M02This page As centrifugally cast | Choose for rings, sleeves and large bushings needing dense, sound wall sections (ASTM B271). | 152 | 315 | 22 | 78 HB | 11.5 % IACS |
As continuous cast | Best for machined bar/tube stock (bushings, wear rings) — dense, uniform, higher yield strength than sand cast (ASTM B505). | 165 | 310 | 14 | 80 HB | 12 % IACS |
What is C92600-M02?
C92600-M02 is C92600 heat treated to M02 — choose for rings, sleeves and large bushings needing dense, sound wall sections (ASTM B271). C92600-M02 has a yield strength of 152 MPa (22 ksi) and a tensile strength of 315 MPa (45.7 ksi) — weaker than 67% of copper alloy grades. Elongation at break is 22% and the elastic modulus is 103 GPa (14.9 Msi). C92600-M02 has a density of 8.8 g/cm³ (0.318 lb/in³), heavier than 58% of copper alloy grades. It melts at 854°C (1,569 °F). M01 is the default condition FabDigit quotes; M02 is available on request or by drawing note.
Advantages
- Easy to machine — 70/100, better than 78% of copper alloy grades
- High service temperature — 260°C (500 °F), better than 75% of copper alloy grades
Limitations
- Hard to polish — 65/100, worse than 87% of copper alloy grades
- Limited formability — 14/100, worse than 84% of copper alloy grades
- Poor heat conductor — 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades
C92600-M02 properties
Typical room-temperature values for C92600-M02; 20 are specific to this condition. Other listed values are C92600 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C92600-M02 has a density of 8.8 g/cm³ (0.318 lb/in³), heavier than 58% of copper alloy grades. It melts at 854°C (1,569 °F).
Mechanical14
C92600-M02 has a yield strength of 152 MPa (22 ksi) and a tensile strength of 315 MPa (45.7 ksi) — weaker than 67% of copper alloy grades. Elongation at break is 22% and the elastic modulus is 103 GPa (14.9 Msi).
Thermal6
C92600-M02 is rated for continuous service to 260°C (500 °F). It conducts heat at 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades. Thermal expansion is 18 µm/m·K (10 µin/in·°F).
Electrical3
C92600-M02 conducts electricity at 11.5 % IACS, worse than 65% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (67/100), better than 66% of copper alloy grades.
Sustainability4
Producing a kilogram of C92600-M02 takes about 55 MJ of energy and emits 3.6 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 70%.
Manufacturability7
C92600-M02's machinability is very good (70/100, better than 78% of copper alloy grades); weldability poor (30/100); formability not recommended (14/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C92600-M02
Is C92600 easy to machine?
Free machining for a tin bronze (≈70 % of C36000): use sharp positive-rake carbide or HSS, moderate speeds and soluble-oil coolant; chips break well thanks to the lead.
Can C92600 be welded?
Fusion welding is generally not recommended (lead causes hot cracking and porosity); repair by braze welding or silver brazing, soldering is excellent.
Can C92600 be formed, bent or molded?
A foundry alloy only — sand, permanent-mold, centrifugal, investment and continuous casting all work well; feed heavy sections to avoid tin inverse segregation and micro-shrinkage.
What surface finishes work on C92600?
Takes a good mechanical polish and buff; can be tin-, nickel- or chromium-plated after thorough degreasing; naturally develops a brown patina, no anodizing.
C92600 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 |
|---|---|---|
| CuCu + named elements ≥ 99.4 % | 86 – 88.5 | 87 |
| Sn | 9.3 – 10.5 | 10 |
| Zn | 1.3 – 2.5 | 2 |
| Pb | 0.8 – 1.5 | 1 |
| Niincl. Co | ≤ 1 | — |
| Fe | ≤ 0.2 | — |
| Sb | ≤ 0.25 | — |
| S | ≤ 0.05 | — |
| P | ≤ 0.05 | — |
| Al | ≤ 0.01 | — |
| Si | ≤ 0.01 | — |
C92600-M02 — frequently asked
What is C92600-M02 used for?
C92600-M02 is typically used for valve bodies, pump housings and general castings. In short: free-machining tin bronze; good pressure-tightness; highest ductility of family.
What is the yield strength of C92600-M02?
C92600-M02 has a typical yield strength of 152 MPa (22 ksi) and a tensile strength of 315 MPa (45.7 ksi) — weaker than 67% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is C92600-M02 easy to machine?
Yes — machinability is rated very good (70/100, better than 78% of copper alloy grades). Free machining for a tin bronze (≈70 % of C36000): use sharp positive-rake carbide or HSS, moderate speeds and soluble-oil coolant; chips break well thanks to the lead.
Can C92600-M02 be welded?
Not readily — weldability is rated poor (30/100). Fusion welding is generally not recommended (lead causes hot cracking and porosity); repair by braze welding or silver brazing, soldering is excellent.
What surface finishes work on C92600-M02?
Takes a good mechanical polish and buff; can be tin-, nickel- or chromium-plated after thorough degreasing; naturally develops a brown patina, no anodizing.
Can C92600-M02 be formed, bent or molded?
A foundry alloy only — sand, permanent-mold, centrifugal, investment and continuous casting all work well; feed heavy sections to avoid tin inverse segregation and micro-shrinkage.
What is the maximum service temperature of C92600-M02?
C92600-M02 is rated for continuous use to about 260°C (500 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C92600-M01 and C92600-M07?
M01 is the default condition — standard ASTM B584 sand-cast condition for valve bodies, pump housings and general pressure castings. M07: best for machined bar/tube stock (bushings, wear rings) — dense, uniform, higher yield strength than sand cast (ASTM B505). Yield strength is 138 MPa in M01 versus 165 MPa in M07.
Sources
- ASTM B584 — Copper Alloy Sand Castings for General Applications — ASTM International (2022)
- ASTM B505/B505M — Copper Alloy Continuous Castings — ASTM International (2018)
- ASTM B271 — Copper-Base Alloy Centrifugal Castings — ASTM International (2020)
- CDA Alloy Database — C92600 leaded tin bronze — Copper Development Association (2023)
- ASM Handbook Vol. 2 — Properties of Copper and Copper Alloys — ASM International (1990)
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.