C17200 Copper (CDA 172)
Standards: ASTM B196, AMS 4533, SAE J461, RWMA CLASS IV, CuBe2 2.1247
C17200, also known as Alloy 25, is the most widely utilized beryllium copper alloy, prized for its exceptional strength and hardness, which rival that of steel. This high-performance alloy achieves an ultimate tensile strength of around 200 ksi and a Rockwell hardness of approximately RC 45 when in a peak-aged condition. With a minimum electrical conductivity of 22% IACS, C17200 copper is ideal for applications where durability and electrical conductivity are paramount, making it a popular choice across industries such as aerospace, automotive, and electronics.
At Sunflex Metal Industries, we specialize in supplying premium-grade C17200 copper that meets the highest industry standards. Whether you need this alloy for critical components or demanding environments, our expert team is ready to assist with your specific requirements. Contact us today at sales@sunflexfittings.com to learn more about our products and how we can support your projects with top-quality materials.
C17200 Beryllium Copper uses:
C17200 Beryllium Copper, also known as Alloy 25, is widely used across various industries due to its unique combination of high strength, hardness, and electrical conductivity. Here are some of its typical uses:
- Electrical and Electronic Components: C17200 is often used in connectors, springs, and switch contacts where high electrical conductivity and durability are required.
- Aerospace Applications: Its strength and resistance to wear make it suitable for critical components in aircraft, such as bushings, bearings, and landing gear parts.
- Automotive Industry: C17200 is used in various automotive components, including spark plug electrodes, fuel injection systems, and high-performance engine parts, due to its excellent fatigue resistance.
- Precision Instruments: The alloy’s stability and resistance to fatigue make it ideal for use in precision instruments, such as measuring devices and pressure-sensitive controls.
- Oil and Gas Industry: Its corrosion resistance and durability under extreme conditions make C17200 a good choice for downhole tools, valve components, and other equipment exposed to harsh environments.
- Mold Tooling: C17200 is also used in mold tooling for plastic injection molding due to its high thermal conductivity and wear resistance, which help in producing high-quality molded parts.
These varied applications demonstrate the versatility and reliability of C17200 Beryllium Copper in demanding environments.
Specifications
| End Product | Specification |
| SOLID BAR | 1/4″ . 6″ diameter |
| RECTANGLES | 3/8″ x 1/2″ . 1″ x 3″ thickness x width |
| SQUARES | 3/8″ . 3″ square |
| PLATES | 2″ . 5″ thickness |
| DISCS & RINGS | Forged to size |
| HONED TUBES | up to 4″ OD |
| Bar | AMS 4650, 4651, 4533, ASTM B194, B196, MILITARY MIL-C-21657, SAE J463, J461 |
| Extrusions | ASTM B570 |
| Forgings | AMS 4650, ASTM B570 |
| Plate | ASTM B194 |
| Rod | AMS 4650, 4534, 4533, 4651, ASTM B196, MILITARY MIL-C-21657, SAE J463, J461 |
| Rod, Forging | AMS 4650 |
| Sheet | ASTM B194 |
| Strip | ASTM B194, SAE J463, J461 |
| Tube, Seamless | AMS 4535, ASTM B643 |
| Wire | AMS 4725, ASTM B197, SAE J463, J461 |
Chemical Composition
| Al | Be | Co | Cu | Si | |
| Min/Max | 0.2 | 1.8 – 2.0 | 0.20 min | Rem | 0.2 |
| Nominals | – | 1.9000 | – | 98.1000 | – |
Mechanical Properties
| Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL | YS 0.02% Offset | YS 0.005% Offset | Elong. | RH B | RH C | RH F | RH 30T | VH 500 | BH 500 | BH 3000 | Shear Strgth | Fatigue Strgth | Izod Impact Strgth |
| – | in. | % | – | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
| – | mm. | – | – | C | MPa | MPa | MPa | MPa | – | – | – | – | – | – | – | – | MPa | MPa | J |
| FLAT PRODUCTS | |||||||||||||||||||
| TM05 | 0 | 68 | 149 | – | 125 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM05 | 0 | 0 | MIN | 20 | 1030 | – | 860 | – | 9 | – | 31 | – | – | – | – | – | – | – | 0 |
| TM08 | 0.19 | 68 | 182 | – | 160 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM08 | 4.78 | 0 | TYP | 20 | 1255 | – | 1103 | – | 6 | – | – | – | – | – | – | – | – | – | 0 |
| TD02 | 0.19 | 68 | 92 | – | 82 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD02 | 4.78 | 0 | TYP | 20 | 634 | – | 565 | – | 15 | 92 | – | – | 77 | – | – | – | – | – | 0 |
| TF00 | 0.19 | 68 | 175 | – | 155 | – | – | – | – | – | – | – | – | – | – | 36 | |||
| TF00 | 4.78 | 0 | TYP | 20 | 1207 | – | 1069 | – | 6 | – | 38 | – | – | – | – | – | – | 248 | 0 |
| TM06 | 0.19 | 68 | 168 | – | 148 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM06 | 4.75 | 0 | TYP | 20 | 1158 | – | 1020 | – | 7 | – | 37 | – | – | – | – | – | – | – | 0 |
| TH04 | 0.19 | 68 | 200 | – | 180 | – | – | – | – | – | – | – | – | – | – | 45 | |||
| TH04 | 4.78 | 0 | TYP | 20 | 1379 | – | 1241 | – | 2 | – | 42 | – | – | – | – | – | – | 307 | 0 |
| TM02 | 0.19 | 68 | 128 | – | 105 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM02 | 4.78 | 0 | TYP | 20 | 883 | – | 724 | – | 15 | – | 27 | – | – | – | – | – | – | – | 0 |
| TM00 | 0.19 | 68 | 105 | – | 82 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM00 | 4.78 | 0 | TYP | 20 | 724 | – | 565 | – | 20 | – | 27 | – | – | – | – | – | – | – | 0 |
| TB00 | 0 | 68 | 70 | – | 32 | – | – | – | – | – | – | – | – | – | – | – | |||
| TB00 | 0 | 0 | TYP | 20 | 483 | – | 221 | – | 45 | 60 | – | – | 58 | – | – | – | – | – | 0 |
| TH02 | 0.19 | 68 | 195 | – | 175 | – | – | – | – | – | – | – | – | – | – | 44 | |||
| TH02 | 4.78 | 0 | TYP | 20 | 1344 | – | 1207 | – | 3 | – | 41 | – | – | – | – | – | – | 303 | 0 |
| TM04 | 0.19 | 68 | 142 | – | 122 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM04 | 4.78 | 0 | TYP | 20 | 979 | – | 841 | – | 12 | – | 32 | – | – | – | – | – | – | – | 0 |
| TD04 | 0.19 | 68 | 110 | – | 104 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD04 | 4.78 | 0 | TYP | 20 | 756 | – | 717 | – | 5 | 99 | – | 81 | – | – | – | – | – | – | 0 |
| TM01 | 0.19 | 68 | 115 | – | 89 | – | – | – | – | – | – | – | – | – | – | – | |||
| TM01 | 4.78 | 0 | TYP | 20 | 793 | – | 614 | – | 17 | – | 23 | – | – | – | – | – | – | – | 0 |
| TH01 | 0.19 | 68 | 185 | – | 165 | – | – | – | – | – | – | – | – | – | – | 40 | |||
| TH01 | 4.78 | 0 | TYP | 20 | 1276 | – | 1138 | – | 4 | – | 40 | – | – | – | – | – | – | 276 | 0 |
| TD01 | 0.19 | 68 | 80 | – | 70 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD01 | 4.78 | 0 | TYP | 20 | 552 | – | 483 | – | 25 | 80 | – | – | 70 | – | – | – | – | – | 0 |
| ROD | |||||||||||||||||||
| TB00 | 0 | 68 | 72 | – | 20 | – | – | – | – | – | – | – | – | – | – | – | |||
| TB00 | 0 | 0 | TYP | 20 | 496 | – | 138 | – | 20 | 65 | – | – | – | – | – | – | – | – | 0 |
| TD04 | 3 | 68 | 103 | – | 75 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD04 | 76.2 | 0 | TYP | 20 | 710 | – | 517 | – | 8 | 94 | – | – | – | – | – | – | – | – | 0 |
| TF00 | 3 | 68 | 182 | – | 130 | – | – | – | – | – | – | – | – | – | – | – | |||
| TF00 | 76.2 | 0 | TYP | 20 | 1255 | – | 896 | – | 3 | – | 39 | – | – | – | – | – | – | – | 0 |
| TH04 | 0.38 | 68 | 405 | – | 315 | – | – | – | – | – | – | – | – | – | – | – | |||
| TH04 | 9.53 | 0 | TYP | 20 | 2792 | – | 2172 | – | 4 | – | 83 | – | – | – | – | – | – | – | 0 |
| TD04 | 0.38 | 68 | 110 | – | 75 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD04 | 9.53 | 0 | TYP | 20 | 758 | – | 517 | – | 8 | 95 | – | – | – | – | – | – | – | – | 0 |
| TD04 | 1 | 68 | 108 | – | 75 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD04 | 25.4 | 0 | TYP | 20 | 745 | – | 517 | – | 8 | 95 | – | – | – | – | – | – | – | – | 0 |
| TF00 | 0 | 68 | 182 | – | 145 | – | – | – | – | – | – | – | – | – | – | – | |||
| TF00 | 0 | 0 | TYP | 20 | 1255 | – | 1000 | – | 4 | – | 39 | – | – | – | – | – | – | – | 0 |
| TH04 | 3 | 68 | 195 | – | 145 | – | – | – | – | – | – | – | – | – | – | – | |||
| TH04 | 76.2 | 0 | TYP | 20 | 1344 | – | 1000 | – | 4 | – | 41 | – | – | – | – | – | – | – | 0 |
| WIRE | |||||||||||||||||||
| TF00 | 0 | 68 | 178 | – | 160 | – | – | – | – | – | – | – | – | – | – | – | |||
| TF00 | 0 | 0 | TYP | 20 | 1227 | – | 1103 | – | 3 | – | – | – | – | – | – | – | – | – | 0 |
| TD04 | 0 | 68 | 152 | – | 125 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD04 | 0 | 0 | TYP | 20 | 1048 | – | 862 | – | 1 | – | – | – | – | – | – | – | – | – | 0 |
| TD02 | 0 | 68 | 122 | – | 100 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD02 | 0 | 0 | TYP | 20 | 841 | – | 689 | – | 5 | – | – | – | – | – | – | – | – | – | 0 |
| TH03 | 0 | 68 | 210 | – | 190 | – | – | – | – | – | – | – | – | – | – | – | |||
| TH03 | 0 | 0 | TYP | 20 | 1448 | – | 1310 | – | 1 | – | – | – | – | – | – | – | – | – | 0 |
| TH04 | 0 | 68 | 212 | – | 195 | – | – | – | – | – | – | – | – | – | – | – | |||
| TH04 | 0 | 0 | TYP | 20 | 1462 | – | 1344 | – | 1 | – | – | – | – | – | – | – | – | – | 0 |
| TH02 | 0 | 68 | 200 | – | 185 | – | – | – | – | – | – | – | – | – | – | – | |||
| TH02 | 0 | 0 | TYP | 20 | 1379 | – | 1276 | – | 1 | – | – | – | – | – | – | – | – | – | 0 |
| TB00 | 0 | 68 | 68 | – | 28 | – | – | – | – | – | – | – | – | – | – | – | |||
| TB00 | 0 | 0 | TYP | 20 | 469 | – | 193 | – | 35 | – | – | – | – | – | – | – | – | – | 0 |
| TD03 | 0 | 68 | 142 | – | 120 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD03 | 0 | 0 | TYP | 20 | 979 | – | 827 | – | 2 | – | – | – | – | – | – | – | – | – | 0 |
| TH01 | 0 | 68 | 190 | – | 175 | – | – | – | – | – | – | – | – | – | – | – | |||
| TH01 | 0 | 0 | TYP | 20 | 1310 | – | 1207 | – | 2 | – | – | – | – | – | – | – | – | – | 0 |
| TD01 | 0 | 68 | 102 | – | 82 | – | – | – | – | – | – | – | – | – | – | – | |||
| TD01 | 0 | 0 | TYP | 20 | 703 | – | 565 | – | 10 | – | – | – | – | – | – | – | – | – | 0 |
Physical Properties
| Product Property | US Customary | Metric |
| Coefficient of Thermal Expansion | 9.9 . 10-6 per å¡F (68-572 F) | 17.8 . 10 6? per å¡C (20-300 C) |
| Density | 0.298 lb/in3 @ 68 F | 8.25 gm/cm3 @ 20 C |
| Electrical Conductivity | 22 %IACS @ 68 F | 0.129 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 46.2 ohms-cmil/ft @ 68 F | 7.68 microhm-cm @ 20 C |
| Melting Point Liquid US | 1800 F | 982 C |
| Melting Point Solid US | 1590 F | 866 C |
| Modulas of Elasticity in Tension | 18500 ksi | 128000 MPa |
| Modulas of Rigidity | 7300 ksi | 50330 MPa |
| Specific Gravity | 8.26 | 8.26 |
| Specific Heat Capacity | 0.1 Btu/lb/å¡F @ 68 F | 419.0 J/kg . å¡K at 293 K |
| Thermal Conductivity | 62.0 Btu . ft/(hr . ft2 . å¡F) @ 68 F | 107.3 W/m . å¡K at 20 C |
Fabrication
| Joining Technique | Suitability |
| Brazing | Good |
| Butt Weld | Fair |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Excellent |
| Coated Metal Arc Welding | Good |
| Forgeability Rating | 40 |
| Gas Sheilded Arc Welding | Good |
| Machinability rating | 20 |
| Oxyacetylene Welding | Not Recommended |
| Seam Weld | Fair |
| Soldering | Good |
| Spot Weld | Good |
Applications & Industries where our C17200 Beryllium Copper are used
Sunflex Metal Industries is a prominent supplier & exporter of C17200 Beryllium Copper which is widely used in the following industries & applications:
C17200 Beryllium Copper are mainly used in Electrical and Electronic Components, Aerospace Applications, Automotive Industry, Precision Instruments, Oil and Gas Industry, Mold Tooling, etc.
Prominent Countries Where We Export C17200 Beryllium Copper
Exporting C17200 Beryllium Copper to Singapore, Malaysia, Hongkong, Thailand, Indonesia, Taiwan. Other countries includes Australia, Afghanistan, Albania, Andorra, Austria, Bahrain, Bangladesh, Bhutan, Brunei, Belarus, Belgium, Bulgaria, Canada, Cambodia, China, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Mexico, Malta, Moldova, Monaco, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Netherlands, Norway, Oman, Poland, Portugal, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, South Korea, South Africa, Sri Lanka, Syria, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United States, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen
Send your requirement today. We respond to all enquiries within 4-5 business hours. You can email us your requirement on sales@sunflexfittings.com