Beryllium Copper Products
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Beryllium Copper C17200, often known as Alloy 25, is the most extensively used beryllium copper alloy and stands out for having the best strength and hardness among commercial copper alloys. Its strength and hardness are comparable to those of steel. In a peak-aged condition, C17200 copper has ultimate tensile and Rockwell hardness values of 200 ksi and RC 45, respectively (electrical conductivity 22% IACS minimum).
Beryllium copper C17200 – Alloy 25, often known as spring copper or beryllium bronze, is one of the strongest copper-based alloys currently on the market. The beryllium level in commercial grades of copper ranges from 0.4 to 2.0 percent. The low beryllium-to-copper ratio results in a class of high copper alloys with strength equivalent to alloy steel. The first two families, C17200 and C17300, give high strength and moderate conductivity, whereas the second family, C17500 and C17510, provide both high conductivity and moderate strength. These alloys’ major characteristics include high thermal conductivity, resistance to stress relaxation, and high reactivity to precipitation-hardening methods.
Round Bar
Strips / Coils
Applications of Beryllium Copper Alloy
Beryllium copper and its many alloys are utilized in highly specialized and frequently custom-made applications such as oilfield equipment, aerospace landing gears, robotic welding, and mold manufacture. It is ideal for down-hole wireline equipment due to its added non-magnetic properties. This copper is known as spring copper and other names since it is particularly designed for these uses.
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When it comes to finding the ideal solution for your requirements, beryllium copper goods are a wonderful choice. Beryllium copper alloy is a high-strength, corrosion-resistant material widely utilized in sectors such as automotive, aerospace, and military. With Aashish Metals supplying beryllium copper goods, you can be confident that you’re obtaining excellent components that will suit your requirements. Let’s look at the benefits of beryllium copper products and how Aashish Metals can help you choose the right one for your needs. From better tensile strength to superior resilience to wear and tear, read on to find out why beryllium copper c17200 is so popular nowadays. When it comes to selecting the best answer for your requirements, beryllium copper prices are superb. Beryllium copper alloy is a high-strength, corrosion-resistant material that is frequently utilized in industries such as automotive, aerospace, and military. And with Aashish Metals offering beryllium copper alloy, you can rest assured that you’re getting quality materials that will meet your requirements. we’ll explore the benefits of beryllium copper products and how Aashish Metals can help you find the perfect product for your needs. From superior tensile strength to superior resistance to wear and tear, read on to learn more about why beryllium copper products are so popular today.
What is beryllium copper material?
Beryllium Copper, also known as Beryllium Bronze or Spring Copper, is a copper alloy containing 0.5-3% beryllium and is occasionally augmented with additional elements. This alloy has a unique mix of favorable traits, including as high strength, non-magnetic characteristics, and non-sparking capabilities.
How is beryllium copper alloy made?
Beryllium copper alloy is made by melting pure copper with a little amount of beryllium metal or beryllium oxide (BeO) powder. The resultant mixture is heated until it reaches a molten state, after which it solidifies into an ingot. This ingot can then go through additional processing, such as shape and size, to satisfy the exact needs of the intended application.
What is beryllium copper used in?
Beryllium copper is a nonferrous alloy that is used in springs, spring wire, load cells, and other components that must maintain their form under repeated stress and strain. It has a high electrical conductivity and is commonly used in low-current battery contacts and electrical connections.
Beryllium Copper Alloy Pros and Cons
Beryllium copper is an alloy of copper and beryllium. It is known for its incredible strength and stiffness, as well as its excellent electrical and thermal conductivity. However, there are numerous drawbacks to using beryllium copper that must be considered before utilizing it in a project.
PROS:
-High strength and stiffness
-Excellent electrical and thermal conductivity
-Non-magnetic
-Resists galling and wear
– Good resistance to corrosion
CONS:
– expensive
– difficult to machine
How to Select the Right Beryllium Copper Alloy for the Right Application?
There are numerous distinct copper alloys, each with its own set of qualities. When choosing the best alloy for a certain application, it is critical to evaluate the project’s unique needs. Factors like as strength, conductivity, and corrosion resistance must be considered.
Beryllium copper is a copper alloy that is commonly used in applications that demand high strength and conductivity. This alloy has 0.5–3% beryllium, giving it outstanding Beryllium copper mechanical characteristics. It is also nonmagnetic and very resistant to corrosion.
Brass is another often-used copper alloy. Brass is a copper-zinc alloy with zinc concentrations ranging from 5 to 40%. This alloy is widely utilized in applications that require both strength and malleability. The low melting point makes it simple to deal with.
There are several additional copper alloys available, each with its own distinct set of characteristics. The best approach to choosing the appropriate alloy for a certain application is to talk with an expert who can assist in determining the optimum material for the job.
C17200 Beryllium Copper Alloy Uses:
| ELECTRICAL: | ||
| Electrical Switch / Relay Blades | Fuse Clips | Switch Parts |
| Relay Parts | Connectors | Spring Connectors |
| Current-Carrying | Contact Bridges | Belleville Washers |
| Navigational Instruments | Clips | |
| FASTENERS: | ||
| Washers | Fasteners | Lock Washers |
| Retaining Rings | Roll Pins | Screws |
| Bolts | ||
| INDUSTRIAL: | ||
| Pumps | Springs | Electrochemical |
| Shafts | Non-Sparking Safety Tools | Flexible Metal Hose |
| Housings for Instruments | Bearings | Bushings |
| Valve Seats | Valve Stems | Diaphragms |
| Springs | Welding Equipment | Rolling Mill Parts |
| Spline Shafts | Pump Parts | Valves |
| Bourdon Tubes | Wear Plates on Heavy Equipment | Bellows |
| ORDINANCE: | ||
| Firing Pins | ||
| OTHER: | ||
| Tools | ||
Beryllium Copper Specifications:
| End Product | Specification |
| 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 |
Beryllium Copper Alloy 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 | – |
C17200 Beryllium Copper Temperature:
| PRODUCT TYPE | TEMPER TYPE |
| 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 |
Beryllium Copper 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 STRENGTH | FATIGUE STRENGTH | IZOD IMPACT STRENGTH |
| – | 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 |
Beryllium Copper Alloy 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@20c |
| 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 |
Beryllium Copper 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 Shielded Arc Welding | Good |
| Machinability rating | 20 |
| Oxyacetylene Welding | Not Recommended |
| Seam Weld | Fair |
| Soldering | Good |
| Spot Weld | Good |
