High Performance Alloys. Characteristics

Transcription

1 Page 1 Alloy Designation Hig Performance Alloys EN CuZn0.5 CW119C DIN CEN/TS UNS Cemical Composition percentage Cu Rest % Zn % P 0.02 % Oter 0.1 % Tis alloy is in accordance wit RoHS 2002/96/CE for electric & electronic equipments and 2002/53/CE for automotive industry. We ave developed a wide range of ig performance alloys wit excellent properties regarding conductivity, strengt, corrosion beaviour, bend ability and relaxation properties. STOL alloys are te first coice materials for ig-end applications and products. Caracteristics CuZn0.5 is a low alloyed Zinc (Zn) copper wit very ig conductivity and enanced softening resistance. It as excellent cold forming, stamping and bending properties. Deep drawing properties are better tan Cu-ETP and Cu-DHP. Corrosion resistance, brazing, soldering and ydrogen crack embrittlement resistance are good too. Main application is leadframe, metal goods, apparatus and construction industry. Te alloy is registered in te USA by EPA to ave good antimicrobial properties. Main Applications Automotive Starter, Switces and Relays, Contacts, Connectors, Terminals Electrical Switces and Relays, Contacts, Connectors, Terminals, Components for te electrical industry, Stamped parts, Semiconductor Components, Potovoltaic solar power plant, Battery, Capacitor, Fuses, Electromagnetic sielding, Leadframes, Cables for telecounication, Antenna, Data cables Industrial Metal Goods, Apparatus and Construction Industry Preferred Applications Leadframes Metal Goods Apparatus and Construction Industry Current Carrying Capacity x xx xx xx x = well suited xx = particularly well suited Pysical Properties Typical values in annealed temper at 20 C Density 8.92 g/cm³ Termal expansion coefficient C C /K 10-6 /K Specific eat capacity J/(g K) Termal conductivity 350 W/(m K) Electrical conductivity (1 MS/m = 1 m/(ω ²) MS/m Electrical conductivity (IACS) % Termal coefficient of electrical resistance ( C) /K Modulus of elasticity ( 1 GPa = 1 kn/²) cold formed annealed 125 GPa GPa Poisson s ratio 0.34

2 Mecanical Properties (EN 1652) Temper Tensile Strengt Rm Yield Strengt Minimum Rp 0.2 Elongation Minimum A 50 Hardness HV * MPa MPa % HV R < R > R > R360 >360 >320 - >110 *only for information ** additional effort in production 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. 42 R220 R240 R290 R360 Temper Fabrication Properties* Cold Forming Properties Max. 95% between annealings Hot Forming Properties at C Macinability (Rating 25) Electroplating Properties Hot Tinning Properties Soft Soldering, Brazing Resistance Welding Gas Sielded Arc Welding Laser Welding Excellent Excellent Fair Good Good Good Fair Good Fair Soft Annealing C Stress Relieving Annealing C * For more details call our tecnical service Corrosion Resistance* Resistant to: Industrial atmospere (formation of dark or green protective layers), industrial and drinking water (max. flow rate approx. 1.5 to 2m/s). Pure water vapour and neutral saline solution. Can be annealed in ydrogen containing atmospere. Practically resistant against stress corrosion cracking Not resistant to: Oxidizing acids, ydrous aonia and alogenated gases, ydrogen Sulfide and cyanide-containing compounds. * For more details call our tecnical service Page 2

3 Page 3 Bending Properties : 0.5 rel. Bending Radius R/T bending edge transvers to rolling direction bending edge in rolling direction 90 Bending Bending test according to EN ISO 7438 is done wit 10 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 290 results, tere te bend definition direction is contradictory. Bending Definition 0 R220 R240 R290 R360 Transverse = good way Parallel = bad way Parallel rel. Bending Radius R/T bending edge transvers to rolling direction bending edge in rolling direction 180 Bending 90 Parallel 90 Transverse 180 Transverse Minimum Bending Radius Calculation 1 0 R220 R240 R290 R360 To find out te minimum possible bending radius take te R/T value from te list. Example: R/T = 0.5 and tickness 0.3 Minimum radius = (R/T) x tickness = 0.5 x 0.3 = 0.15 Bending Properties* Temper Bending 90 Bending 180 Transvers Parallel Trans -vers Parallel R/T R/T R/T R/T R R R R * Measured at sample widt 10 according to EN 1654 Possible bending radius = (R/T) x tickness

4 Page 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 R360 at 200 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 10 7 load cycles witout crack is measured. Dependent on te temper class it is approximately 1/3 of te tensile strengt R m.

5 Page 5 Camber Customized Tolerances Evenness L Our products are produced in accordance wit relevant norms EN 1652 / EN Customer specific tolerances for,, 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 ±0.018 ±0.005 ± ±0.022 ±0.007 ±0.005 L angle ±0.025 ±0.015 ± ±0.030 ±0.015 ± ±0.040 ±0.017 ± ±0.040 ±0.020 ± ±0.040 ±0.022 ±0.012 Transverse Flatness L Evenness Tolerance [] [] ±0.050 ±0.025 ± ±0.060 ±0.030 ± ±0.070 ±0.045 ± ±0.100 ±0.050 ± ±0.120 ±0.060 ±0.030 Rougness Ra [µm] [] On request > 2.0 Tolerance Standard / Precision [] [] / / / / / / / / / / / / / / / / / / / / / / / / /

6 Page 6 Formats Dimension* Coil Strip tickness (oter ticknesses on request) Strip widt Outside diameter (Standard) (Deep-Drawing Quality) per Traverse wound strip Drums: wood, plastic, metal, flangeless TECSTRIP _multicoil Inner diameter 300 for tickness Inner diameter 400 for tickness Maximum weigt Outer diameter maximum Seet 6.35 Lengt Seets in standard dimensions e.g. 1,000 x 2,000 on stock Seet > 6.35 Lengt Seets in standard dimensions e.g. 1,000 x 2, Plate Lengt Disc Diameter * Some combinations migt not be possible

7 Page 7 Surface coatings & Special Treatments * Dimension Hot-Dip tinned and STOL 28M Tin-Silver STOL 13 Termic Sn Tin Layer µm Different tickness per side possible Electroplating Tin, Silver, Gold, Cu-Flas, Ni-Flas, Selective plating Oter coatings on request Profiled strips STOL Multigauge 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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