Industrial Rolled. High Performance STOL Alloys. Characteristics

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1 Page 1 Alloy Designation Hig Performance STOL Alloys EN - DIN CEN/TS UNS JAPAN C 1510 JIS H 3100 Cemical Composition Weigt percentage Cu % Zr % Fe % Mn % Al % Fe+Al+Mn 0.01 % 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 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 CuZr alloy tat can be ardened by cold forming and moderatly by precipitation of CuZr - 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 low diffusion of Zr in Cu te softening resistance and relaxation properties, even at temperatures up to 150 C are excellent. Te electrical and termal conductivity is excellent. Welding and brazing properties are good, soldering properties are excellent. 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 Electronic Circuits, Electrical Connectors, Lead Frames, Switces, Switc Blade Jaws, Coutators for Power, Transmitters, Basses for Power Transmitters, Rectifiers, Soldering and Welding Tips, Circuit Breakers, Hig Temperature Preferred Applications Spring Contact Switces and Relays Hig Temperature >150 C Current Carrying Capacity xx xx xx xx x = well suited xx = particularly well suited Pysical Properties Typical values in annealed temper at 20 C Density 8.94 g/cm³ Termal expansion coefficient C /K Specific eat capacity J/(g K) Termal conductivity 360 W/(m K) Electrical conductivity (1 MS/m = 1 m/(ω ²) 55.1 MS/m Electrical conductivity (IACS) 95 % Termal coefficient of electrical resistance ( C) /K Modulus of elasticity ( 1 GPa = 1 kn/²) cold formed 121 GPa

2 Page 2 Mecanical Properties (EN 1652) Temper Tensile Strengt Rm Yield Strengt Minimum Rp 0.2 Elongation Minimum A 50 Hardness HV * MPa MPa % HV R280 (H01) R300 (H02) R320 (H03) R360 (H04) R400 (H06) R440 (H08) *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. 50 R280 Temper R320 Fabrication Properties* Cold Forming Properties Excellent Macinability (Rating 20) Less suitable Electroplating Properties Good Hot Tinning Properties Good Soft Soldering, Brazing Excellent Resistance Welding Less suitable Gas Sielded Arc Welding Less suitable 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 : 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 R280 R320 Transverse = good way Parallel = bad way rel. Bending Radius R/T bending edge transvers to rolling direction bending edge in rolling direction 180 Bending R280 R Parallel 90 Parallel 90 Transverse 180 Transverse Minimum Bending Radius Calculation 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 * Measured at sample widt 10 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 99.8% 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 R320 at 400 C R320 at 450 C R320 at 500 C R320 at 550 C R320 at 600 C to be evaluated 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. Page 4

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 Weigt (Standard) Weigt (Deep-Drawing Quality) Weigt per Traverse wound strip Weigt 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 Weigt Seets in standard dimensions e.g. 1,000 x 2, Seet > 6.35 Lengt Weigt Seets in standard dimensions e.g. 1,000 x 2, Plate Lengt Weigt Disc Diameter Weigt * 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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