Chromium Zirconium DIN2.1293 Copper Blade Specification
UNS/CDA UNS C17200, CDA 172
ASTM B196, B251, B643
AMS 4533,4534,4535,4650, 4651
Name beryllium copper C17200
QQ/ML QQ-C-530, SAEJ 461,463
RWMA Class4
DIN 2.1247, CW101C, CuBe2
Used Industry
Chemical Composition
Be: 1.80-2.00%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
Physical Properties
Density (g/cm3): 8.36
Density before age hardening (g/cm3): 8.25
Elastic Modulus (kg/mm2 (103)): 13.40
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
Note:
1). the units are based upon Metric. Big Scrap Round Copper Bars
2). the typical physical properties apply to age hardened products.
Application
Typical Application for C17200 Beryllium Copper Alloys, C18150 Chromium Zirconium Copper Rectangular Bars
Electrical Industry: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay parts, Connectors, Spring Connectors, 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
International Specification:
Rods/Bars/Plates/Sheets: UNS.C18000, CDA180, RWMA Class 3
European Standards: CuCrNi2Si, DIN 2.0855, CW111C to EN
Note: ASTM: American Society for Testing and Materials RWMA: Resistance Welder Manufacturers’ Association Note: Unless otherwise specified, material will be produced to DIN & RWMA. Copper Pipe Plumbing Water Piping C17200
Mechanical Properties:
The detailed Mechanical Properties will be available on request from customers. CuCrZr DIN 2.1293 Chromium Zirconium Copper Rods
Most Commonly Temper Used:
Rods/Bars/Tubes: AT(TF00), HT (TH04) Plates: AT(TF00), HT(TH04)
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