Copper Alloy C96200-M02
Heat-treated state
UNS C96200 · EN CC380H, CuNi10Fe1Mn1-C
M02 = as centrifugally cast
Pick for seamless rings, sleeves and pipe/tube stock — denser, finer structure and slightly higher strength than sand cast.
Values for the M02 condition
Other C96200 tempers and conditions
C96200 is listed in 5 conditions; see the grade overview at C96200.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
as cast, stress relieved / homogenized (~760–870 °C, water quenched) | Use after major weld repair or for maximum ductility and uniform corrosion behaviour; slightly lower strength, higher elongation. | 165 | 310 | 32 | 72 HB | 9.5 % IACS |
M01Default As sand cast | Standard ASTM B369 sand-cast condition for valve bodies, pump casings and flanges. | 179 | 317 | 25 | 80 HB | 9.5 % IACS |
As investment cast | Near-net-shape small marine valve internals and impellers where machining allowance must be minimal. | 185 | 330 | 25 | 82 HB | 9.5 % IACS |
As continuous cast | Continuous-cast bar and tube stock for machined seawater fittings; sound, low-porosity sections. | 190 | 340 | 27 | 85 HB | 9.5 % IACS |
M02This page As centrifugally cast | Pick for seamless rings, sleeves and pipe/tube stock — denser, finer structure and slightly higher strength than sand cast. | 195 | 345 | 28 | 85 HB | 9.5 % IACS |
What is C96200-M02?
C96200-M02 is C96200 heat treated to M02 — pick for seamless rings, sleeves and pipe/tube stock — denser, finer structure and slightly higher strength than sand cast. C96200-M02 has a yield strength of 195 MPa (28.3 ksi) and a tensile strength of 345 MPa (50 ksi) — weaker than 56% of copper alloy grades. Elongation at break is 28% and the elastic modulus is 124 GPa (18 Msi). C96200-M02 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,099°C (2,010 °F). M01 is the default condition FabDigit quotes; M02 is available on request or by drawing note.
Advantages
- Good corrosion resistance — 80/100, better than 96% of copper alloy grades
- High service temperature — 315°C (599 °F), better than 92% of copper alloy grades
- Readily welded — 75/100, better than 89% of copper alloy grades
Limitations
- High embodied carbon — 5.2 kg CO₂/kg, worse than 88% of copper alloy grades
- Poor heat conductor — 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades
- Low electrical conductivity — 9.5 % IACS, worse than 76% of copper alloy grades
C96200-M02 properties
Typical room-temperature values for C96200-M02; 19 are specific to this condition. Other listed values are C96200 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C96200-M02 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,099°C (2,010 °F).
Mechanical14
C96200-M02 has a yield strength of 195 MPa (28.3 ksi) and a tensile strength of 345 MPa (50 ksi) — weaker than 56% of copper alloy grades. Elongation at break is 28% and the elastic modulus is 124 GPa (18 Msi).
Thermal6
C96200-M02 is rated for continuous service to 315°C (599 °F). It conducts heat at 45 W/m·K (26 BTU/hr·ft·°F), worse than 76% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
C96200-M02 conducts electricity at 9.5 % IACS, worse than 76% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (80/100), better than 96% of copper alloy grades.
Sustainability4
Producing a kilogram of C96200-M02 takes about 72 MJ of energy and emits 5.2 kg of CO₂ — more than 86% of copper alloy grades. Typical recycled content is 35%.
Manufacturability7
C96200-M02's machinability is poor (30/100, worse than 67% of copper alloy grades); weldability very good (75/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C96200-M02
Is C96200 easy to machine?
Gummy, work-hardening chip — use sharp positive-rake carbide, heavy positive feed, rigid setup and copious coolant; do not dwell or the surface hardens.
Can C96200 be welded?
Readily GTAW/GMAW welded with 65/30 CuNi (ERCuNi) filler; keep the weld zone clean and oxide/oil free, use low heat input, no preheat and never weld over sulfide-contaminated surfaces.
Can C96200 be formed, bent or molded?
Cast only — high solidification shrinkage (~2%) needs generous risers, chills and controlled gating; melt must be well deoxidized (Mn/Si) to avoid gas porosity and hot tearing.
What surface finishes work on C96200?
Not anodizable; pickle/passivate castings and allow the natural brown protective film to develop in clean flowing seawater — avoid tin or nickel plating that would break the film, and shot blast only with non-ferrous media to prevent iron contamination.
C96200 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 |
|---|---|---|
| NiNi + Co | 9 – 11 | 10 |
| Fekey to erosion-corrosion resistance | 1 – 1.8 | 1.4 |
| Mn | 0.8 – 1.5 | 1 |
| Sideoxidizer | ≤ 0.5 | — |
| NbCb, optional weld-crack suppressant | ≤ 1 | — |
| C | ≤ 0.1 | — |
| Pb | ≤ 0.01 | — |
| S | ≤ 0.02 | — |
| P | ≤ 0.02 | — |
| Curemainder, ~85–87% | balance | — |
C96200-M02 — frequently asked
What is C96200-M02 used for?
C96200-M02 is typically used for seawater valves, pump bodies, marine fittings and heat exchanger heads. In short: baseline cast seawater alloy; good biofouling resistance; widely stocked cast Cu-Ni.
What is the yield strength of C96200-M02?
C96200-M02 has a typical yield strength of 195 MPa (28.3 ksi) and a tensile strength of 345 MPa (50 ksi) — weaker than 56% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is C96200-M02 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 67% of copper alloy grades). Gummy, work-hardening chip — use sharp positive-rake carbide, heavy positive feed, rigid setup and copious coolant; do not dwell or the surface hardens.
Can C96200-M02 be welded?
Yes — weldability is rated very good (75/100). Readily GTAW/GMAW welded with 65/30 CuNi (ERCuNi) filler; keep the weld zone clean and oxide/oil free, use low heat input, no preheat and never weld over sulfide-contaminated surfaces.
What surface finishes work on C96200-M02?
Not anodizable; pickle/passivate castings and allow the natural brown protective film to develop in clean flowing seawater — avoid tin or nickel plating that would break the film, and shot blast only with non-ferrous media to prevent iron contamination.
Can C96200-M02 be formed, bent or molded?
Cast only — high solidification shrinkage (~2%) needs generous risers, chills and controlled gating; melt must be well deoxidized (Mn/Si) to avoid gas porosity and hot tearing.
What is the maximum service temperature of C96200-M02?
C96200-M02 is rated for continuous use to about 315°C (599 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between C96200-M01 and C96200-M02?
M01 is the default condition — standard ASTM B369 sand-cast condition for valve bodies, pump casings and flanges. M02: pick for seamless rings, sleeves and pipe/tube stock — denser, finer structure and slightly higher strength than sand cast. Yield strength is 179 MPa in M01 versus 195 MPa in M02.
Sources
- ASTM B369 — Copper-Nickel Alloy Castings — ASTM International (2021)
- EN 1982 — Copper and copper alloys: ingots and castings (CC380H / CuNi10Fe1Mn1-C) — CEN (2017)
- CDA Alloy Database — C96200 — Copper Development Association (2023)
- ASM Handbook Vol.2 — Properties of Copper and Copper Alloys — ASM International (1990)
- Copper-Nickel Alloys for Seawater Service — Nickel Institute / CDA UK (2018)
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.