CuCrZr C18400/C18150 Industrial Rolled

Transcription

1 Page 1 Alloy Designation EN DIN CEN/TS CW16C Hig Performance STOL Alloys UNS Cemical Composition Weigt percentage C184 C1815 Cu Rest % Cr % Zr % Oter.2 % Tis alloy is in accordance wit RoHS 22/96/CE for electric & electronic equipments and 22/53/CE for automotive industry. We ave developed a wide range of ig performance copper alloys wit excellent properties regarding conductivity, strengt, corrosion beaviour, bendability and relaxation properties. STOL alloys are te first coice materials for ig-end applications and products. Caracteristics is a alloy tat can be ardened by cold forming and by precipitation of - pases during a eat treatment. It as good bendability, excellent ot and cold forming properties, a ig strengt and a good corrosion resistance. Due to te CrZr-precipitations te relaxation properties, even at temperatures up to 25 C are excellent. Te electrical and termal conductivity is excellent. Welding, soldering and brazing properties are good too. Te alloy is registered in te US by EPA to ave good antimicrobial properties. Main Applications Automotive Switces and Relays, Contacts, Connectors, Terminals, Hybrid Cars Electrical Switces and Relays, Contacts, Connectors, Terminals, Components for te electrical industry, Stamped parts, Semiconductor Components, Junction Boxes Potovoltaic Systems Preferred Applications Spring Contact Switces and Relays Hig Temperature >15 C Current Carrying Capacity xx xx xx xx x = well suited xx = particularly well suited Pysical Properties Typical values in annealed temper at 2 C Density 8.9 g/cm³ Termal expansion coefficient C /K Specific eat capacity.381 J/(g K) Termal conductivity 33 W/(m K) Electrical conductivity (1 MS/m = 1 m/(ω ²) 51 MS/m Electrical conductivity (IACS) 88 % Termal coefficient of electrical resistance (.. 1 C) /K Modulus of elasticity ( 1 GPa = 1 kn/²) cold formed 137 GPa

2 Page 2 Mecanical Properties (EN 1652) Temper Tensile Strengt Rm Yield Strengt Minimum Rp.2 Elongation Minimum A 5 Hardness HV * MPa MPa % HV R R *only for information Electrical Conductivity E. Conductivity [MS/m] Electrical conductivity is strongly influenced by cemical composition. A ig level of cold deformation and small grain size decrease te electrical conductivity moderately. Minimum conductivity level can be specified. 45 R48 Temper R54 Fabrication Properties* Cold Forming Properties Good Macinability (Rating 2) Less suitable Electroplating Properties Excellent Hot Tinning Properties Excellent Soft Soldering, Brazing Excellent Resistance Welding Less suitable Gas Sielded Arc Welding Excellent Laser Welding Fair * For more details call our tecnical service Corrosion Resistance* is resistant to pure water vapour and non oxidizing acids and alkalis as well as neutral saline solutions. Te material is insensitive to stress corrosion cracking. * For more details call our tecnical service

3 Page 3 Bending Properties :.5 rel. Bending Radius R/T bending edge transvers to rolling direction bending edge in rolling direction 9 Bending Bending test according to EN ISO 7438 is done wit 1 wide samples. Smaller samples in general as well as lower tickness allow a lower bending radius witout cracks. If needed we supply bending optimized temper classes tat far exceed standard quality. Please take care wen comparing wit ASTM E 29 results, tere te bend definition direction is contradictory. Bending Definition R48 R54 Transverse = good way Parallel = bad way rel. Bending Radius R/T bending edge transvers to rolling direction bending edge in rolling direction 18 Bending R48 R54 18 Parallel 9 Parallel 9 Transverse 18 Transverse Minimum Bending Radius Calculation To find out te minimum possible bending radius take te R/T value from te list. Example: R/T =.5 and tickness.3 Minimum radius = (R/T) x tickness =.5 x.3 =.15 Bending Properties* Temper Bending 9 Bending 18 Transvers Parallel Trans -vers Parallel R/T R/T R/T R/T R R * Measured at sample widt 1 according to EN 1654 Possible bending radius = (R/T) x tickness

4 Sanitary and Antimicrobial Properties Marc Solioz. University of Bern Copper as been recognised as a ygienic material since te dawn of civilisation and, in te last two centuries, te anecdotal evidence as been supported by scientific researc sowing tat copper is antimicrobial, i.e. it inibits te growt of armful patogens - bacteria, moulds, algae, fungi and viruses. Due to its ig copper content of about 98% provides te full antimicrobial properties of copper to inibit te growt of bacteria, viruses and fungi wic are in contact for a sort period of time on copper containing surfaces. Copper surfaces ave sanitizing properties and self-sanitizing activity tat make it attractive for ygienic and sanitary use e.g. in ospitals, nursing omes and oter ealtcare facilities or public buildings. Te effect as been verified in recent scientific studies on a range of disease-causing organisms including MRSA, Clostridium difficile, E.coli, Listeria monocytogenes, Influenza A (H1N1) and Aspergillus niger. Picture: Copper coin (Iris penny) on an agar plate wit cells of E. coli bacteria For more details please contact our tecnical service Softening Resistance Vickers Hardness HV R54 at 4 C R54 at 45 C R54 at 5 C R54 at 55 C R54 at 6 C After sort time eat treatment Vickers Hardness is measured. Te diagram sows typical values Time [s] Bend Fatigue (at room temperature) Te fatigue strengt gives an indication about te resistance to variations in applied tension. It is measured under syetrical alternating load. Te maximum bending load for 1 7 load cycles witout crack is measured. Dependent on te temper class it is approximately 1/3 of te tensile strengt R m. Page 4

5 Relaxation Properties Termal stress relieved Remaining Stress [%] Remaining Stress [%] Remaining Stress [%] Remaining Stress [%] R C 3 R54 15 C R54 2 C Time [] R C R54 15 C 1 R54 2 C P kt (XY) Time [] R C R54 15 C R54 2 C Time [] R C R54 15 C R54 2 C Time [] Initial Stress: 5% of Rp.2 Parallel Rolling Direction Initial Stress: 5% of Rp.2 Transverse Rolling Direction Initial Stress: 8% of Rp.2 Parallel Rolling Direction Initial Stress: 8% of Rp.2 Transverse Rolling Direction Stress relaxation is tested wit cantilever bending test equipment. Tis metod is taking sort time relaxation into account. so tat te values acieved are very realistic, wile oter test metods like tube test pretend better properties from te acieved values. Relaxation values give an indication about stress relieve of strip under tension for a certain time and temperature. As it is measured on plain strip. te beaviour of deformed parts may differ. neverteless te ratio between te different tempers remains te same. Typical test sample tickness is.3.6. Page 5

6 Page 6 Camber Customized Tolerances Evenness L Our products are produced in accordance wit relevant norms EN 1652 / EN Customer specific tolerances for, Widt, Camber, Transverse Flatness, Evenness, Twist and Coil set can be defined. We will be appy to meet your demands. EN 1652 defines only camber. Tolerance L EN KME Standard KME Precision Coil set Twist ±.18 ±.5 ± ±.22 ±.7 ±.5 L angle ±.25 ±.15 ± ±.3 ±.15 ± ±.4 ±.17 ± ±.4 ±.2 ± ±.4 ±.22 ±.12 Transverse Flatness L Evenness Tolerance Widt ±.5 ±.25 ± ±.6 ±.3 ± ±.7 ±.45 ± ±.1 ±.5 ± ±.12 ±.6 ±.3 Rougness Ra [µm] On request > 2. Widt Tolerance Standard / Precision Widt / / / / / / / / / / / / / / / / / / / / / / / / / - +6.

7 Page 7 Formats Dimension* Coil Strip tickness (oter ticknesses on request) Strip widt Outside diameter Weigt (Standard) Weigt (Deep-Drawing Quality) Weigt per Traverse wound strip Widt Weigt Drums: wood, plastic, metal, flangeless TECSTRIP _multicoil Widt Inner diameter 3 for tickness Inner diameter 4 for tickness Maximum weigt Outer diameter maximum Seet 6.35 Widt Lengt Weigt Seets in standard dimensions e.g. 1, x 2, Seet > 6.35 Widt Lengt Weigt Seets in standard dimensions e.g. 1, x 2, Plate Widt Lengt Weigt Disc Diameter Weigt * Some combinations migt not be possible

8 Page 8 Surface coatings & Special Treatments * Dimension Hot-Dip tinned and STOL 28M Tin-Silver STOL 13 Termic Sn Widt Tin Layer µm Different tickness per side possible Electroplating Widt Tin, Silver, Gold, Cu-Flas, Ni-Flas, Selective plating Oter coatings on request Profiled strips STOL Multigauge Widt Oter widt on request Surface wit extra low residual carbon content possible. Protection wit oil or adesive foil on request * Furter details you find at Standards for copper and copper alloys EN 1652 EN 1654 EN 1758 EN EN EN Plate, seet, strip and circles for general purposes Strip for springs and connectors Strip for lead frames Hot-dip tinned strip Copper plate, seet and strip for electrical purposes Electrolytically tinned strip

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