UNS.C17300 (Alloy M25) Leaded Berylliium Copper Wire With High Strength
Product Description:
Product Name: Leaded beryllium copper wire
Grade: UNS.C17300 (Alloy 25)
Available Products(Forms): round wires, flat wires, coils
Diameter: 0.3mm-2mm
Brand: CUBERYLLIUM®
UNS.C17300 (Alloy M25) Leaded Berylliium Copper Wires International Specification:
Wires: ASTM B197, QQ-C-530
European Standards: CuBe2Pb, Alloy M25, UNS.C17300, DIN.2.1248, CW102C to EN
CUBERYLLIUM® manufactures copper beryllium in several distinct compositions. These fall into two categories: alloys selected for high strength (Alloys 172,173,170) and alloys selected for high conductivity (Alloys 751,750,741). And Gost standard QBe2,QBe1.9Ti for Russia Market. Also Supply Master alloy : CuBeryllium-200; CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global factory.
CUBERYLLIUM ®-173 also named -C17300 (CDA 173) offers the strength properties of C17300 with the added benefit of being “free machining”. C17300 rod and wire contain a small amount of lead to provide an alloy tailored for automatic machining operations. Lead promotes formation of finely divided chips thus extending cutting tool life.
Chemical Composition of UNS.C17300 (Alloy M25) Leaded Berylliium Copper alloys:
| CUBERYLLIUM® Brand | UNS-Number | Beryllium | Cobalt
+ Nickel | +Cobalt
+ Nickel
+ Iron | Pb | Copper |
| Cuberyllium-C173 | C17300 | 1.80-2.00 | 0.20 min | 0.6 max | 0.2～0.6 | Balance |
Note: Copper plus additions equal 99.5% minimum.
Typical Applications of UNS.C17300 (Alloy M25) Leaded Berylliium Copper Alloys:
| CUBERYLLIUM® Brand | Product Category | Product |
| Cuberyllium-C173 | Electrical | Switch Parts, Relay parts, Electrical Connectors, Fuse Clips, Contact Bridges, Electrical Motor Components, Navigational Instruments, Electrical Switch and Relay Blades. |
| Fasteners | Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts |
| Industrial | Bushings, Non-Sparking Safety Tools, Shafts, Pumps, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Bellows, Electrochemical Springs, Flexible Metal Hose |
Mechanical and Electrical Properties of UNS.C17300 (Alloy M25) Leaded Beryllium Copper Wires:
| Alloy | Temper (*) | Heat Treatment | Tensile Strength ksi | Elongation percent | Electrical Conductivity percent IACS |
CUBERYLLIUM
173 | A | / | 400～580 | 30-60 | 15-19 |
| (TB00) |
| 1/4 H | / | 570～795 | 3~25 | 15-19 |
| (TD01) |
| 1/2 H | / | 710～930 | 2~15 | 15-19 |
| (TD02) |
| 3/4 H | / | 840～1070 | 2~8 | 15-19 |
| (TD03) |
| H | / | 915～1140 | 1~6 | 15-19 |
| (TD04) |
CUBERYLLIUM
173 | AT | 3 hr 315 | 1050~1380 | 3 min | 22-28 |
| (TF00) |
| 1/4 HT | 2 hr 315 | 1150~1450 | 2 min | 22-28 |
| (TH01) |
| 1/2 HT | 1.5hr 315 | 1200~1480 | 2 min | 22-28 |
| (TH02) |
| 3/4 HT | 1.0 hr 315 | 1250~1585 | 2 min | 22-28 |
| (TH03) |
| HT | 1.0hr 315 | 1300~1585 | 1 min | 22-28 |
| (TH04) |
Key Technology of Beryllium Copper(Heat treatment)
Heat treatment is the most important process for this alloy system. While all copper alloys are hardenable by cold working, beryllium copper is unique in being hardenable by a simple low temperature thermal treatment. It involves two basic steps. The first is called solution annealing and the second, precipitation or age hardening.
Solution Annealing
For the typical alloy CuBe2Pb) the alloy is heated between 720°C and 860°C. At this point the contained beryllium is essentially “dissolved” in the copper matrix (alpha phase). By rapidly quenching to room temperature this solid solution structure is retained. The material at this stage is very soft and ductile and can be readily cold worked by drawing, forming rolling, or cold heading. The solution annealing operation is part of the process at the mill and is not typically used by the customer. Temperature, time at temperature, quench rate, grain size, and hardness are all very critical parameters and are tightly controlled by ohmalloy.
Age Hardening
Age hardening significantly enhances the material’s strength. This reaction is generally carried out at temperatures between 260°C and 540°C depending on alloy and desired characteristics. This cycle causes the dissolved beryllium to precipitate as a beryllium rich (gamma) phase in the matrix and at the grain boundaries. It is the formation of this precipitate which causes the large increase in material strength. The level of mechanical properties attained is determined by the temperature and time at temperature. It should be recognized that beryllium copper has no room temperature aging characteristics.
Fabrication
| JOINING TECHNIQUE | SUITABILITY |
| Brazing | Good |
| Butt Weld | Fair |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Good |
| Coated Metal Arc Welding | Good |
| Gas Sheilded Arc Welding | Good |
| Machinability rating | 50 |
| Oxyacetylene Welding | Not Recommended |
| Seam Weld | Fair |
| Soldering | Good |
| Spot Weld | Good |
Product Photo:
FAQ:
Q1:Could you produce Beryllium Copper strip by Mill Hardened process.
A1:Yes, we could produce AM(TM00), 1/2HM(TM01).HM(TM04) XHM(TM06) XHMS(TM08).,we are the only factory could do harden strip in China.
Q2: What’s the advantages the Beryllium Copper of CUBERYLLIUM®.
A2: 1: The Biggest Coil weight could be reach 1200kg/Coil
2:We are the only one who melting by Vacuum semi-Continuous Furnace.
3:Surface further polishing for top clients.
Q3: Why you melting by Vacuum semi-Continuous Furnace.
A3:Could be get the Cast ingot without gas,smaller segregation, Grain Refinement
Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the amount is different.
Product Tags:
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UNS C17300 Alloy M25 Copper Beryllium Wire Leaded 0.3mm High Strength Images
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