Most commonly utilized beryllium copper and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. Its strength and hardness is similar to that of steel. AMS 4534 ultimate tensile and Rockwell hardness properties in a peak aged condition are in the 200 ksi range and RC 45 respectively (electrical conductivity 22% IACS minimum).
Typical Uses for AMS 4534 Beryllium Copper:
ELECTRICAL: Electrical Switch and 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
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 |
| Al | Be | Co | Cu | Si | |
| Min/Max | 0.2 | 1.8 - 2.0 | 0.20 min | Rem | 0.2 |
| Nominals | - | 1.9000 | - | 98.1000 | - |
| 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 |
| 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 |
| 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 |
| 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 |
