BE-CU Alloy 25 (C17200) Strips With Hard Temper for bell relay
contract spring
Product Normal Description:
Product Name: BE-CU strips
Grade: Alloy 25(C17200)
Standard: ASTM B194, SAE J463, J461
Product Specification: 0.28mmx100mm
State: XHMS
Product Brand: CUBERYLLIUM®
CUBERYLLIUM® is a professional supplier of various beryllium copper alloys:
BE-CU Alloy 25(C17200) beryllium copper strip, beryllium copper
coils supplier;
BE-CU Alloy 25(C17200) beryllium copper rod, beryllium copper bars
supplier;
BE-CU Alloy 25(C17200) beryllium copper sheet, beryllium copper
plate, beryllium copper tube supplier;
BE-CU Alloy 25(C17200) beryllium copper wire supplier.
Chemical Composition of Beryllium Copper Alloy C17200 (CUBERYLLIUM ®-172):
Beryllium(Be): 1.80-2.00%
Cobalt(Co) + Nickel(Ni): 0.20% Min
Cobalt(Co) + Nickel(Ni) + Iron(Fe): 0.60% Max
Lead: 0.02% Max
Copper(Cu): Balance
Note: Copper plus additions equal 99.5% Minimum.
Typical Physical Properties of Beryllium Copper Alloy C17200(CUBERYLLIUM ®-172):
| Density (g/cm3): | 8.36 |
| Density before age hardening (g/cm3): | 8.25 |
| Elastic Modulus (kg/mm2 (103)): | 13.4 |
| Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C): | 17 x 10-6 |
| Thermal Conductivity (cal/(cm-s-°C)): | 0.25 |
| Melting Range (°C): | 870-980 |
Temper Designations of Beryllium Copper Strip C17200(CUBERYLLIUM ®-172):
| Cuberyllium Designation | ASTM | Mechanical and Electrical Properties of Copper Beryllium Strip |
| Designation | Description | Tensile Strength
(Mpa) | Yield Strength 0.2% offset | Elongation Percent | HARDNESS
(HV) | HARDNESS
Rockwell
B or C Scale | Electrical Conductivity
(% IACS) |
| A | TB00 | Solution Annealed | 410～530 | 190～380 | 35~60 | <130 | 45~78HRB | 15～19 |
| 1/2 H | TD02 | Half Hard | 580～690 | 510～660 | 12~30 | 180~220 | 88~96HRB | 15～19 |
| H | TD04 | Hard | 680~830 | 620~800 | 2~18 | 220~240 | 96~102HRB | 15～19 |
| HM | TM04 |
Mill hardened | 930～1040 | 750～940 | 9～20 | 270～325 | 28～35HRC | 17～28 |
| SHM | TM05 | 1030～1110 | 860～970 | 9～18 | 295～350 | 31～37HRC | 17～28 |
| XHM | TM06 | 1060～1210 | 930～1180 | 4～15 | 300～360 | 32～38HRC | 17～28 |
Product Photos:
Applications of Beryllium Copper Alloy C17200n(CUBERYLLIUM ®-172):
CUBERYLLIUM ®-172 is usually used for electrical industry,
fasteners and industrial.
Electrical Industry: electrical switch and relay blades(switch parts, relay parts),
clips, fuse clips, connectors, spring connectors, navigational
indstruments, contact bridges, belleville washers;
Fasteners: washers, lock washers, fasteners, retaining rings, roll pins,
screws, bolts;
Industrial: pump parts, springs, electrochemical, spline shafts, non sparking
safety tools, flexible metal hose, housings for indtruments,
bearings, bushings, valve seats, valve stems, disphragms, springs,
welding equipment, rolling mill parts, valves, bourdon tubes, wear
plates on heavy equipment, bellows.
