Copper Alloy TBe1.9
TBe1.9 is a cast beryllium bronze, the casting counterpart to the wrought copper–beryllium grades, supplied as F and T6 castings and in TB, TD, TF and TH conditions.
Reference datasheet — TBe1.9 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 TF00 condition
TBe1.9 tempers and conditions
TBe1.9 is supplied in 10 conditions, soft to hard. TF00 is the default FabDigit quotes; the values on this page are for it.
Compare all 10 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution heat treated | Pick for maximum formability: deep-drawn, bent or coined parts that will be precipitation aged after forming. | 240 | 480 | 40 | 100 HB | 17 % IACS |
As fabricated | As-cast blanks for bushings, mould inserts and non-sparking tools that will be solution treated and aged after rough machining. | 260 | 480 | 15 | 130 HB | 17 % IACS |
Solution heat treated and cold worked, quarter hard | Light cold work for moderate forming with slightly higher as-formed strength before ageing. | 450 | 590 | 20 | 165 HB | 17 % IACS |
Solution heat treated and cold worked, half hard | Half-hard strip/bar for mild bending, later aged to reach high strength with better flatness. | 550 | 660 | 12 | 12 HRC | 17 % IACS |
Solution heat treated and cold worked, full hard | Fully cold-worked, un-aged strip/wire; use where springs are aged after coiling or where dimensional stability matters. | 700 | 760 | 4 | 21 HRC | 17 % IACS |
Solution heat treated and artificially aged | Heat-treated castings for heavy-load bushings, guide blocks and plastic-mould inserts needing ~1000 MPa and 320–360 HB. | 930 | 1,070 | 1.5 | 36 HRC | 21 % IACS |
TF00Default Solution heat treated and precipitation hardened | Standard stock condition for machined bar, plate, bushings and mould inserts needing ~1200 MPa strength with 36–40 HRC. | 1,030 | 1,200 | 4 | 38 HRC | 22 % IACS |
TD01 and precipitation hardened | Aged after light cold work: slightly higher strength than TF00 with usable ductility for formed springs. | 1,070 | 1,200 | 4 | 39 HRC | 22 % IACS |
TD02 and precipitation hardened | Common strip condition for high-load contacts and springs where formability was consumed before ageing. | 1,100 | 1,260 | 3 | 40 HRC | 22 % IACS |
TD04 and precipitation hardened | Highest strength/hardness condition — choose for springs, dies and wear parts where forming is finished and ductility is not needed. | 1,210 | 1,380 | 2 | 42 HRC | 22 % IACS |
What is TBe1.9?
TBe1.9 is a cast beryllium bronze, the casting counterpart to the wrought copper–beryllium grades, supplied as F and T6 castings and in TB, TD, TF and TH conditions. Fully aged material gives 1030 MPa yield, 1200 MPa tensile, 4 % elongation, 360 HB / 38 HRC with 118 W/m·K and 22 % IACS, which suits high-strength, wear-resistant and non-sparking cast components such as bushings and mould inserts. Service is limited to about 200 °C, ductility is low, and all cutting and grinding must be dust-controlled because of the beryllium content. TBe1.9 has a density of 8.26 g/cm³ (0.298 lb/in³), lighter than 83% of copper alloy grades. It melts at 865°C (1,589 °F). TBe1.9 has a yield strength of 1,030 MPa (149 ksi) and a tensile strength of 1,200 MPa (174 ksi) — stronger than 99% of copper alloy grades. Elongation at break is 4% and the elastic modulus is 130 GPa (18.9 Msi).
What is TBe1.9 used for?
- Cast bushings/bearings
- Non-sparking tool castings
- Mold inserts
- Wear plates
Advantages
- High strength — 1,030 MPa (149 ksi), better than 99% of copper alloy grades
- Polishes to a fine finish — 85/100, better than 92% of copper alloy grades
- Stiff — 130 GPa (18.9 Msi), better than 89% of copper alloy grades
Limitations
- High embodied carbon — 9 kg CO₂/kg, worse than 99% of copper alloy grades
- Limited ductility — 4%, worse than 96% of copper alloy grades
- Limited formability — 15/100, worse than 79% of copper alloy grades
TBe1.9 properties
Typical room-temperature values for TBe1.9-TF00; bars are the position among copper alloy grades.
Physical3
TBe1.9 has a density of 8.26 g/cm³ (0.298 lb/in³), lighter than 83% of copper alloy grades. It melts at 865°C (1,589 °F).
Mechanical16
TBe1.9 has a yield strength of 1,030 MPa (149 ksi) and a tensile strength of 1,200 MPa (174 ksi) — stronger than 99% of copper alloy grades. Elongation at break is 4% and the elastic modulus is 130 GPa (18.9 Msi).
Thermal6
TBe1.9 is rated for continuous service to 200°C (392 °F). It conducts heat at 118 W/m·K (68.2 BTU/hr·ft·°F), better than 65% of copper alloy grades. Thermal expansion is 17.5 µm/m·K (9.72 µin/in·°F).
Electrical3
TBe1.9 conducts electricity at 22 % IACS, better than 55% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (65/100), better than 58% of copper alloy grades.
Sustainability4
Producing a kilogram of TBe1.9 takes about 130 MJ of energy and emits 9 kg of CO₂ — more than 99% of copper alloy grades. Typical recycled content is 30%.
Manufacturability7
TBe1.9's machinability is fair (45/100, better than 64% of copper alloy grades); weldability fair (40/100); 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. TBe1.9 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with TBe1.9
Is TBe1.9 easy to machine?
Machines like a hard bronze in the aged (TF00/TH04) state with carbide tools, positive rake and flood coolant; all cutting, grinding and polishing must be wet or locally exhausted because beryllium-bearing dust and fume are toxic.
Can TBe1.9 be welded?
Fusion welding is difficult (Be oxide film, loss of ageing response) — prefer resistance, laser or electron-beam welding on solution-treated material and re-age afterwards; braze/solder with pre-cleaned, flux-protected joints.
Can TBe1.9 be formed, bent or molded?
Form only in TB00/TD01 tempers then precipitation age (typically ~315–330 °C, 2–3 h) allowing for ~0.1–0.3 % shrinkage; castings need controlled melting under cover and full solution treatment (~790 °C, water quench) before ageing.
TBe1.9 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 |
|---|---|---|
| Beprimary precipitation-hardening element | 1.85 – 2.1 | 1.95 |
| Nigrain refinement / ageing control | 0.2 – 0.4 | 0.3 |
| Ti | 0.1 – 0.25 | 0.18 |
| Feimpurity limit | ≤ 0.15 | |
| Siimpurity limit | ≤ 0.15 | |
| Alimpurity limit | ≤ 0.15 | |
| Pbimpurity limit | ≤ 0.01 | |
| Cu | balance |
What surface finishes work on TBe1.9?
Takes a mirror polish suited to mould inserts; readily nickel-, silver- or gold-plated after oxide removal, and produces a stable brown patina in air — no anodizing (n/a for copper alloys).
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 TBe1.9 cost?
TBe1.9 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.
TBe1.9 — frequently asked
What is TBe1.9 used for?
TBe1.9 is typically used for cast bushings/bearings, non-sparking tool castings, mold inserts and wear plates. In short: cast beryllium bronze; high hardness, non-sparking; mirror-polishable mould material.
What is the yield strength of TBe1.9?
TBe1.9 has a typical yield strength of 1,030 MPa (149 ksi) and a tensile strength of 1,200 MPa (174 ksi) — stronger than 99% of copper alloy grades. Strength varies by condition: see the 10 listed tempers.
Is TBe1.9 easy to machine?
Reasonably — machinability is rated fair (45/100, better than 64% of copper alloy grades). Machines like a hard bronze in the aged (TF00/TH04) state with carbide tools, positive rake and flood coolant; all cutting, grinding and polishing must be wet or locally exhausted because beryllium-bearing dust and fume are toxic.
Can TBe1.9 be welded?
With care — weldability is rated fair (40/100). Fusion welding is difficult (Be oxide film, loss of ageing response) — prefer resistance, laser or electron-beam welding on solution-treated material and re-age afterwards; braze/solder with pre-cleaned, flux-protected joints.
What surface finishes work on TBe1.9?
Takes a mirror polish suited to mould inserts; readily nickel-, silver- or gold-plated after oxide removal, and produces a stable brown patina in air — no anodizing (n/a for copper alloys).
Can TBe1.9 be formed, bent or molded?
Form only in TB00/TD01 tempers then precipitation age (typically ~315–330 °C, 2–3 h) allowing for ~0.1–0.3 % shrinkage; castings need controlled melting under cover and full solution treatment (~790 °C, water quench) before ageing.
What is the maximum service temperature of TBe1.9?
TBe1.9 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 TBe1.9-TF00 and TBe1.9-TB00?
TF00 is the default condition — standard stock condition for machined bar, plate, bushings and mould inserts needing ~1200 MPa strength with 36–40 HRC. TB00: pick for maximum formability: deep-drawn, bent or coined parts that will be precipitation aged after forming. Yield strength is 1,030 MPa in TF00 versus 240 MPa in TB00.
How much does TBe1.9 cost?
TBe1.9 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
- GB/T 2059 / GB/T 2040 — SAC (2017)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys (C17200) — ASM International (1990)
- Alloy 25 (CuBe2) technical datasheet — Materion Brush Performance Alloys (2021)
- C17200 alloy properties — Copper Development Association (copper.org) (2023)
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.