Copper Alloy C95200-TQ50
Supply condition
UNS C95200
TQ50 = quenched from ~815 °C and temper annealed
Choose when higher yield strength and hardness are needed for gears, wear plates and heavily loaded bushings.
Values for the TQ50 condition
Other C95200 tempers and conditions
C95200 is listed in 4 conditions; see the grade overview at C95200.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
M01-AsCastDefault M01 | Standard stocked condition for pump/valve bodies and general hardware; best ductility, lowest cost. | 207 | 552 | 30 | 115 HB | 12 % IACS |
M02 | Pick for bushings, sleeves and rings — denser, finer structure gives higher strength than sand casting. | 241 | 586 | 25 | 125 HB | 12 % IACS |
M07 | Continuous-cast bar/tube stock for machined bushings and wear parts; sound, low-porosity sections. | 241 | 586 | 25 | 125 HB | 12 % IACS |
TQ50This page Quenched from ~815 °C and temper annealed | Choose when higher yield strength and hardness are needed for gears, wear plates and heavily loaded bushings. | 276 | 621 | 20 | 143 HB | 12 % IACS |
What is C95200-TQ50?
C95200-TQ50 is C95200 supplied in the TQ50 condition — choose when higher yield strength and hardness are needed for gears, wear plates and heavily loaded bushings. C95200-TQ50 has a yield strength of 276 MPa (40 ksi) and a tensile strength of 621 MPa (90.1 ksi) — stronger than 59% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 110 GPa (16 Msi). C95200-TQ50 has a density of 7.64 g/cm³ (0.276 lb/in³), lighter than 92% of copper alloy grades. It melts at 1,043°C (1,909 °F). M01-AsCast is the default condition FabDigit quotes; TQ50 is available on request or by drawing note.
Advantages
- Lightweight — 7.64 g/cm³ (0.276 lb/in³), better than 92% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- Good corrosion resistance — 72/100, better than 84% of copper alloy grades
- Readily welded — 65/100, better than 80% of copper alloy grades
Limitations
- Limited formability — 15/100, worse than 79% of copper alloy grades
C95200-TQ50 properties
Typical room-temperature values for C95200-TQ50; 21 are specific to this condition. Other listed values are C95200 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C95200-TQ50 has a density of 7.64 g/cm³ (0.276 lb/in³), lighter than 92% of copper alloy grades. It melts at 1,043°C (1,909 °F).
Mechanical15
C95200-TQ50 has a yield strength of 276 MPa (40 ksi) and a tensile strength of 621 MPa (90.1 ksi) — stronger than 59% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
C95200-TQ50 is rated for continuous service to 300°C (572 °F). It conducts heat at 57 W/m·K (32.9 BTU/hr·ft·°F), worse than 64% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
C95200-TQ50 conducts electricity at 12 % IACS, worse than 62% 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 C95200-TQ50 takes about 52 MJ of energy and emits 3.6 kg of CO₂ — less than 87% of copper alloy grades. Typical recycled content is 55%.
Manufacturability8
C95200-TQ50's machinability is fair (40/100, better than 57% of copper alloy grades); weldability good (65/100); formability poor (15/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C95200-TQ50
Is C95200 easy to machine?
Machines like a tough gummy bronze at ~50 % of free-cutting brass: use sharp positive-rake carbide, rigid setups, moderate speeds with generous coolant to avoid work-hardened skin and built-up edge.
Can C95200 be welded?
GTAW/GMAW with matching aluminium-bronze filler (ERCuAl-A2) works well; keep interpass temperature low, clean the tenacious Al₂O₃ film mechanically before each pass, and avoid oxyacetylene.
Can C95200 be formed, bent or molded?
A casting alloy only — sand, centrifugal and continuous cast; needs quiescent bottom filling, generous chills/risers and oxide-skim control because the oxide film causes lap defects.
What surface finishes work on C95200?
Not anodizable; pickle/passivate or shot-blast then paint, or leave bare for seawater service. Polishes to a golden lustre but tarnishes; electroless nickel or chrome plating requires activation of the aluminium oxide.
C95200 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 |
|---|---|---|
| Alprimary strengthener, forms α+κ structure | 8.5 – 9.5 | 9 |
| Fegrain refiner / κ-phase former | 2.5 – 4 | 3 |
| Mnresidual limit (per B505 named-element practice) | ≤ 0.5 | — |
| Niresidual limit; Ni-bearing service grades are C95500/C95800 | ≤ 1 | — |
| Siresidual limit | ≤ 0.25 | — |
| Cu86 % min per ASTM B148/B505 | ≥ 86 (balance) | — |
C95200-TQ50 — frequently asked
What is C95200-TQ50 used for?
C95200-TQ50 is typically used for valve bodies, gears, bushings and marine hardware. In short: entry-level aluminium bronze; weldable cast bronze; high elongation, 30 %.
What is the yield strength of C95200-TQ50?
C95200-TQ50 has a typical yield strength of 276 MPa (40 ksi) and a tensile strength of 621 MPa (90.1 ksi) — stronger than 59% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is C95200-TQ50 easy to machine?
Not especially — machinability is rated fair (40/100, better than 57% of copper alloy grades). Machines like a tough gummy bronze at ~50 % of free-cutting brass: use sharp positive-rake carbide, rigid setups, moderate speeds with generous coolant to avoid work-hardened skin and built-up edge.
Can C95200-TQ50 be welded?
Yes — weldability is rated good (65/100). GTAW/GMAW with matching aluminium-bronze filler (ERCuAl-A2) works well; keep interpass temperature low, clean the tenacious Al₂O₃ film mechanically before each pass, and avoid oxyacetylene.
What surface finishes work on C95200-TQ50?
Not anodizable; pickle/passivate or shot-blast then paint, or leave bare for seawater service. Polishes to a golden lustre but tarnishes; electroless nickel or chrome plating requires activation of the aluminium oxide.
Can C95200-TQ50 be formed, bent or molded?
A casting alloy only — sand, centrifugal and continuous cast; needs quiescent bottom filling, generous chills/risers and oxide-skim control because the oxide film causes lap defects.
What is the maximum service temperature of C95200-TQ50?
C95200-TQ50 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 C95200 M01-AsCast and C95200-TQ50?
M01-AsCast is the default condition — standard stocked condition for pump/valve bodies and general hardware; best ductility, lowest cost. TQ50: choose when higher yield strength and hardness are needed for gears, wear plates and heavily loaded bushings. Yield strength is 207 MPa in M01-AsCast versus 276 MPa in TQ50.
Sources
- ASTM B148 – Aluminum-Bronze Sand Castings — ASTM International (2019)
- ASTM B505/B505M – Copper Alloy Continuous Castings — ASTM International (2018)
- CDA Alloy Datasheet C95200 — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 – Properties of Nonferrous Alloys — ASM International (1990)
- GB/T 1176 ZCuAl9Fe4 (2013)
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.