Industrial Rolled. High Performance Alloys. Characteristics

Transcription

1 Page 1 Alloy Designation High Performance Alloys EN CuNi3Si DIN CEN/TS UNS Chemical Composition percentage Cu Min % Ni % Si % Mg % Zn Max. 1. Others remainder % This alloy is in accordance with RoHS 22/96/CE for electric & electronic equipments and 22/53/CE for automotive industry. We have developed a wide range of high performance alloys with excellent properties regarding conductivity, strength, corrosion behaviour, bend ability and relaxation properties. STOL alloys are the first choice materials for high-end applications and products. Characteristics CuNi3Si is an optimized CuNiSi alloy that can be hardened by cold forming and by precipitation of NiSi-phases during a heat treatment. It has excellent bend ability, excellent hot and cold forming properties, a high strength and a good corrosion resistance. Due to the NiSi-precipitations the relaxation properties, even at temperatures up to 15 C are excellent. In combination with a tin coating even at temperatures around 15 C (3.h) the tin coating does not peel off. The electrical and thermal conductivity is good. Welding, soldering and brazing properties are good too. The alloy is registered US EPA antimicrobial. Main Applications Automotive Switches and Relays, Contacts, Connectors, Terminals Electrical Switches and Relays, Contacts, Connectors, Terminals, Components for the electrical industry, Stamped parts, Semiconductor Components, Preferred Applications Electrical industry Components Stamped parts connectors Relay springs Semiconductor components xx xx xx xx xx x = well suited xx = particularly well suited Physical Properties Typical values in annealed temper at 2 C Density 8.8 g/cm³ Thermal expansion coefficient C C /K 1-6 /K Specific heat capacity.399 J/(g K) Thermal conductivity 19 W/(m K) Electrical conductivity (1 MS/m = 1 m/(ω ²) 23 MS/m Electrical conductivity (IACS) 4 % Thermal coefficient of electrical resistance (.. 1 C) 1-3 /K Modulus of elasticity ( 1 GPa = 1 kn/²) cold formed annealed 13 GPa GPa

2 E. Conductivity [MS/m] Page 2 Mechanical Properties (EN 1652) Temper Tensile Strength Rm Yield Strength Minimum Rp.2 Elongation Minimum A 5 Hardness HV * MPa MPa % HV R R R Other tempers on request *only for information ** additional effort in production Electrical Conductivity R62 R65 R69 Temper Fabrication Properties* Cold Forming Properties Machinability (Rating 2) Less suitable Electroplating Properties Hot Tinning Properties Soft Soldering, Brazing Resistance Welding Fair Gas Shielded Arc Welding Laser Welding Less suitable Soft Annealing C, 1.. 3h Electrical conductivity is strongly influenced by chemical composition. A high level of cold deformation and small grain size decrease the electrical conductivity moderately. Minimum conductivity level can be specified. Corrosion Resistance* CuNi3Si has good corrosion resistance in natural atmosphere. It is insensitive to stress corrosion cracking. * For more details call our technical service Stress Relieving Annealing * For more details call our technical service C, 1.. 3h

3 rel. Bending Radius R/T rel. Bending Radius R/T Page 3 Bending Properties : bending edge transvers to rolling direction bending edge in rolling direction 9 Bending Bending test according to EN ISO 7438 is done with 1 wide samples. Smaller samples in general as well as lower thickness allow a lower bending radius without cracks. If needed we supply bending optimized temper classes that far exceed standard quality. Please take care when comparing with ASTM E 29 results, there the bend definition direction is contradictory. 1 Bending Definition R62 R655 R69 Transverse = good way Parallel = bad way 6 5 bending edge transvers to rolling direction bending edge in rolling direction 18 Parallel 4 9 Bending Parallel 9 Transverse 18 Transverse 1 R62 R655 R69 Minimum Bending Radius Calculation To find out the minimum possible bending radius take the R/T value from the list. Example: R/T =.5 and thickness.3 Minimum radius = (R/T) x thickness =.5 x.3 =.15 Bending Properties* Temper Bending 9 Bending 18 Transvers Parallel Trans -vers Parallel R/T R/T R/T R/T R62.5 R R * Measured at sample width 1 according to EN 1654 Possible bending radius = (R/T) x thickness

4 Vickers Hardness HV Sanitary and Antimicrobial Properties Marc Solioz. University of Bern Copper has been recognised as a hygienic material since the dawn of civilisation and, in the last two centuries, the anecdotal evidence has been supported by scientific research showing that copper is antimicrobial, i.e. it inhibits the growth of harmful pathogens - bacteria, moulds, algae, fungi and viruses. Due to its high copper content of about 96% CuNi3Si provides the full antimicrobial properties of copper to inhibit the growth of bacteria, viruses and fungi which are in contact for a short period of time on copper containing surfaces. Copper surfaces have sanitizing properties and self-sanitizing activity that make it attractive for hygienic and sanitary use e.g. in hospitals, nursing homes and other healthcare facilities or public buildings. The effect has 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 (Irish penny) on an agar plate with cells of E. coli bacteria For more details please contact our technical service Softening Resistance After short time heat treatment Vickers Hardness is measured. The diagram shows typical values R62 at 4 C R62 at 45 C R65 at 5 C Time [s] Bend Fatigue (at room temperature) The fatigue strength gives an indication about the resistance to variations in applied tension. It is measured under syetrical alternating load. The maximum bending load for 1 7 load cycles without crack is measured. Dependent on the temper class it is approximately 1/3 of the tensile strength R m. Page 4

5 Remaining Stress [%] Remaining Stress [%] Remaining Stress [%] Remaining Stress [%] Relaxation Properties R C 1 R75 15 C R75 2 C Punkt (XY) Time [h] R C R75 15 C R75 2 C Time [h] R C R75 15 C R75 2 C Time [h] R C R75 15 C R75 2 C Time [h] 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 with cantilever bending test equipment. This method is taking short time relaxation into account. so that the values achieved are very realistic, while other test methods like tube test pretend better properties from the achieved 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. the behaviour of deformed parts may differ. nevertheless the ratio between the different tempers remains the same. Typical test sample thickness is.3.6. Page 5

6 Rolling direction Page 6 Camber Customized Tolerances Evenness L Rolling direction Our products are produced in accordance with relevant norms EN 1652 / EN Customer specific tolerances for,, Camber, Transverse Flatness, Evenness, Twist and Coil set can be defined. We will be happy 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 h h Transverse Flatness angle ±.25 ±.15 ± ±.3 ±.15 ± ±.4 ±.17 ± ±.4 ±.2 ± ±.4 ±.22 ± ±.5 ±.25 ± ±.6 ±.3 ± ±.7 ±.45 ± ±.1 ±.5 ± ±.12 ±.6 ±.3 h Evenness Tolerance [] L [] Roughness Ra [µm] [] On request > 2. Tolerance Standard / Precision [] [] / / / / / / / / / / / / / / / / / / / / / / / / / - +6.

7 Page 7 Formats Dimension* Coil Strip thickness (other thicknesses on request) Strip width Outside diameter (Standard) (Deep-Drawing Quality) per Traverse wound strip Drums: wood, plastic, metal, flangeless TECSTRIP _multicoil Inner diameter 3 for thickness Inner diameter 4 for thickness Maximum weight Outer diameter maximum Sheet 6.35 Length Sheets in standard dimensions e.g. 1, x 2, on stock Sheet > 6.35 Length Sheets in standard dimensions e.g. 1, x 2, Plate Length Disc Diameter * Some combinations might not be possible

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

9 Page 9 CH87 KME CuNi3Si Contact (alphabetic order per country) AUSTRIA FRANCE SINGAPORE KME Austria Vertriebsgesellschaft m.b.h Postfach Wien Phone Fax info-at@kme.com KME France S.A.S. 11 bis. rue de l Hôtel de Ville Courbevoie Cedex Phone Fax info@kme.com BELGIUM GERMANY SPAIN N.V. KME Benelux SA Leuvenbaan Steenokkerzeel Phone Fax info-benelux@kme.com KME Germany GmbH & Co. KG Klosterstrasse Osnabrück Phone Fax info@kme.com CHINA GERMANY SWEDEN KME Metals Shanghai Trading Ltd. Hong Qiao Road 88, Rm A87 23 Shanghai Phone Fax zhiming.chen@kme.com.cn KME Germany GmbH & Co. KG Frankentalstrasse Stolberg Phone Fax info-connectors@kme.com KME Asia Pte. Ltd. 51 Lorong 17 Geylang #6-1 Superior Industrial Building Singapore Phone Fax info-asia@kme.com KME Spain S.A. Ctra Sabadell Mollet. km5 Sta. Pertètua de Mogado 813 Barcelona Phone Fax info-iberica@kme.com Metallcenter Sverige AB Silkesvägen 26 SE Phone Fax mail@metallcenter.se CZECH REPUBLIC HUNGARY SWITZERLAND KME Czech Republic s.r.o. nám. Sítnà Kladno Phone Fax info-cz@kme.com KME Hungaria Színesfém Kft. Andor u VI.em Budapest Phone +36-() Fax +36-() info-hungary@kme.com KME Suisse SA Binzallee Zürich Phone Fax info-ch@kme.com DANMARK ITALY UNITED KINGDOM KME Danmark A/S Næsbyvej 26 5 Odense C. Phone Fax info-dk@kme.com KME Italy S.p.A. Via Corradino d Ascanio Milan Phone Fax info@kme.com FINLAND POLAND USA Metallcenter Finland OY AB Piiskakuja 1 FIN-238 Phone Fax mail@metallcenter.fi KME Polska Sp. z o.o. ul. Wszystkich Świętych KETY Phone Fax info-polska@kme.com KME UK Severn House Prescott Drive Warndon Business Park WR4 9NE Worcester Phone Fax info-uk@kme.com KME America Inc. 1 Jorie Boulevard. Suite Oak Brook. Illinois Phone Fax sales@kmeamerica.com Internet Disclaimer This material flyer is giving you general information about our products. We have collected the information with great care, even though KME can take no warranty for the completeness, correctness and for being up-to-date. The statements are in no way to be deemed as an advisory service of our company, but are only descriptive without guaranteeing or granting property-related qualities. The data given cannot replace expert advice or customers own tests. Liability of the statements in the flyer is specifically excluded unless compelling legal liability facts are evident. Technical changes reserved.