Beryllium Copper Alloys

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1 Beryllium Copper Alloys Security Reliability Performance

2 Beryllium Copper Introduction Offers unique combinations of mechanical and electrical properties ADVANTAGES High strength High fatigue life Good conductivity Good formability Corrosion resistance Stress relaxation Wear & abrasion resistance Wide temperature range Non-magnetic Non-sparking The Berylco Beryllium Copper alloys are the most versatile of all copper alloys. They combine a wide range of properties that make our alloys the ideal materials to meet the exacting requirements of many products demanding high specifications that are used in the most diverse markets. The Berylco alloys offer a wide combination of mechanical and electrical properties, combining with excellent formability which is unique for copper alloys. The mechanical strength achieved after a simple heat treatment, at low temperature, ranks highest amongst all the copper-based alloys, and combined with a high electrical conductivity outperforms any bronze alloys. Our alloys exhibit a wide range of desired properties such as high fatigue strength, excellent corrosion, wear and abrasion resistance. They are also non-magnetic and non-sparking. All manufacturing technologies such as casting, forging, extrusion, cold drawing, cold rolling, stamping, machining, soldering, plating, and many others, can be used to produce any beryllium copper parts. Meet tomorrow s technological challenges Demands for cost, quality, miniaturisation, reliability, safety, environmental protection and high-end general performance require suitable high-performance alloys such as beryllium copper. The available data is to be referred to by the user in order to select the correct alloy and temper and the alloy which will provide optimum properties and yet be compatible with the forming of the part. For a given problem we can investigate the possibility of improving the formability while retaining the desired mechanical properties. For these special investigations NGK Berylco offers the services of its engineers and technical advisors. MARKETS Automotive Aerospace Electrical & Electronic Telecommunication Home appliances Nuclear energy Offshore Biomedical & Medical Photovoltaic Watch making Defence & Military Railway Electrical conductivity (%IACS) High Strength & Electrical Conductivity Copper CrCu Brass Cu-Ni-Si B8 B14 & B33/25 Phosphor 10 Bronze Stainless Steel Tensile Strength (N/mm 2 ) B7 NGK BERYLCO alloys Other materials The Berylco alloys product range including strips, rods, wires, foundry alloys (ingots, Formability (R/t ; 90 Transversal bending) PRODUCT RANGE High Bending Formability EH Brass INDUSTRIAL HYGIENE H Phosphor Bronze SH H SH AM B7HT XHMS Mill- Age Hardened Hardened HT 1/2HMB XHM EH Mill- HM Hardened type B B14HT 1/2HM XHMB 1/2HT B14 S780 HMB B14 S880 1/4HT Tensile Strength (N/mm 2 ) master alloys to 4%), Chill-Vents, forged rods, plates, profiles and safety tools. When supplied in solid form, beryllium copper alloys are non-hazardous, because Beryllium has been completely dissolved into copper. General handling, stamping, forming, most machining operations, pickling, surface treatment, plating and heat treatment are nonhazardous and do not require any special precautions. If they are subsequently processed in any way which might give rise to airborne dust or fumes, for instance by dry grinding, abrading, electrodischarge machining, melting or welding, then an inhalation hazard could arise (Chronic Beryllium Disease CBD or berylliosis). Any such process requires suitable air extraction and filtration to maintain Be level below 2 µg/m 3 of air per working day, Occupational Exposure Limit recommended in France and UK (inhalable fraction 8 hours Time Weighted Average). NGK Berylco has participated in the development of a Product Stewardship Program for beryllium containing materials: Be Responsible. Available at For more information regarding hazards and Risk Management Measures, or to request our product Safety Information Sheets (SIS), please contact us.

3 Beryllium Copper alloys Berylco alloys Properties Designation Chemical composition (%) Product form Characteristics High Strength alloy BERYLCO 25 Be : ISO CuBe2 Co : EN CW 101 C Co + Ni + Fe : UNS C17200 BERYLCO 33/25 ISO CuBe2Pb EN UNS CW 102 C C17300 Be : Co : Co + Ni + Fe : Pb : 1,8-2,0 % 0,3 % max. 0,6 % max. 1,8-2,0 % 0,3 % max. 0,6 % max. 0,2 % min. Rod Wire Rod Wire alloys offer a wide combination of properties ranging from good electrical conductivity, good formability, and very high mechanical and electrical properties after heat treatment. Free machining very high strength alloy. Its small addition of lead gives a very good machinability index. Its properties are identical to Berylco 25. High Conductivity alloys BERYLCO 14 ISO CuNi2Be EN UNS CW 110 C C17510 BERYLCO 8 ISO CuNi2Be EN UNS CW 110 C C17510 Be : Ni : Be : Ni : BERYLCO 7 Be : ISO CuNi2Be Ni + Co : UNS C17530 Al : Cu+Be+Ni+Co+Al : 0,2-0,6 % 1,8-2,2 % 0,2-0,6 % 1,4-2,2 % % % 0.6 % max % min. Rod Wire B14 alloys combine good mechanical properties and high electrical conductivity. B14S mill hardened strip product offers an excellent formability superior to any other copper alloys. B8 alloys combine very high electrical conductivity (>60 %IACS) and good mechanical properties. It is recommended for products exposed to high temperature. B7 alloys offer an excellent combination of mechanical, formability and electrical properties, and are recommended for large production batch applications. Physical properties after precipitation hardening Berylco 25 Berylco 33/25 Berylco 14 Berylco 8 Berylco 7 Melting point ( C) Density (g/cm 3 ) at 20 C 8,26 8,26 8,75 8,75 8,71 Specific heat (Cal/(g. C)) at 20 C 0,1 0,1 0,1 0,1 0,1 Coefficient of linear expansion (x10-6 / C) at 20 to 200 C 17,3 17, ,6 17,6 Electrical resistivity (maxi) (10-8 Ω.m) at 20 C 7,9 7,9 3,8 3,1 5,4 Thermal conductivity (W/m.K) at 20 C Electrical conductivity (% IACS) at 20 C Modulus of elasticity (N/mm 2 ) Modulus of rigidity (N/mm 2 ) Poisson s ratio 0,3 0,3 0,3 0,3 0,3 Magnetic permeability µ (µ=1+4 k) Fatigue resistance (N/mm 2 ) at 10 8 cycles Reference Specifications Authority Rod and Wire EN 1652, , 12164, 12165, 12166, ASTM B194, B534 B196, B197, B442, B441 CDA and SAE C17200, C17000, C17510, C17530 C17200, C17300, C17510 JIS H3130 C1720 P.R, H3130 C1751 P.R H3270 C1720 B.W AFNOR (1) A (1) A (1), A (1), NFL DIN (1) (1), (1), 1777 (1) (1), (1) British Standard (1) BS 2870 (1) BS , BS 2874 (1) Federal USA (2) QQ-C-533 (2) QQ-C-530 (2) Specifications replaced by the EN (1) and ASTM (2) specifications. Withdrawn and superseded specifications are listed for reference only, and are not to be used for purchasing. Please contact NGK Berylco to determine the appropriate replacement specification.

4 Berylco Properties High Strength High Conductivity Alloy Temper TS YS 0,2% Elongation A50 mini Hardness (HV) Electrical Conductivity Heat Treatment Formability R/t at 90 bending (%) (% IACS) Long. Trans. Age hardenable A ,0 0,0 1/4H ,0 0,0 1/2H ,0 2,0 H ,0 5,0 AT h at 315 C /4HT h at 315 C /2HT h at 315 C HT h at 315 C Mill hardened (standard) 1/4HM M 1,3 1,8 1/2HM M 1,5 2,0 HM M 2,3 2,5 SHM M 2,5 3,0 XHM M 3,0 4,0 XHMS M 4,0 6,0 Mill hardened Type B (high formability) 1/2HMB M 0,0 0,0 HMB M 1,0 1,0 XHMB M 2,0 2,0 Mill hardened Type S (very high formability) HM-TypeS M 0,5 0,5 XHM-TypeS M 1,0 1,0 Age hardenable A ,0 0,0 1/2H ,5 2,0 H ,0 3,0 B14 AT h at 480 C /2HT h at 480 C 1,5 2,0 HT h at 480 C 2,0 2,0 Mill hardened (high formability) S M 0,3 0,3 S M 0,7 0,7 Mill hardened (standard) B8 HT ,0 1,0 Mill hardened (standard) 1/2HT ,0 0,0 B7 HT ,5 1,0 EHT ,0 1,5 Properties Values are applicable to thickness 0.1mm and over. Note M Mill Hardened M indicates that the metal has been submitted to a treatment facility designed especially to give characteristics falling within a guaranteed range specific properties. Formability The formability R/t ratio allows a bending radius at 90 without cracking in the direction of rolling (longitudinal and transverse bending ways), for the various tempers. Typical R/t values are applicable for strip of 0.25mm thick or less. R = radius of bending ; t = thickness of the strip. ROLLING DIRECTION Bending 90 Longitudinal Way Bending 90 Transverse Way Dimensional Tolerances Thickness tolerances (mm) Width tolerances (mm) Thickness Standard Precision Thickness Width from 3 to 49.9 from 50 to 100 > mm standard precision > 0.80 mm standard Camber tolerances max. / 1m (mm) Ratio : Width / Thickness (mm) Straightness tolerances fo (mm) On demand On demand On demand > On demand If the measurement is made over a length l1 other than 1 m, the value for f1 is If supplied A temper, only standard tolerances are possible. established by the formula: f1 = fo I1² (l1 is in mm).

5 Berylco Rod & Wire High Strength & Conductivity Alloy Temper Diameter (mm) & B33/25 B14 Age hardenable TS Rod Properties YS 0,2% Elongation A50 mini (%) Hardness (HV) Electrical Conductivity (% IACS) Heat Treatment A All dimensions H Ø 25 mm H Ø > 25 mm AT All dimensions h at 315 C HT Ø 25 mm h at 315 C HT Ø > 25 mm h at 315 C AT All dimensions h at 480 C HT All dimensions h at 480 C Rod Dimensional Tolerances Dimensional tolerances (Age hardenable) Length / Diameters Berylco 25 Berylco 33/25 Berylco 25 Berylco 33/25 Ø (mm) ± (mm) Ø (mm) ± (mm) Ø (mm) ± (mm) Ø (mm) ± (mm) 1,4 3.0 h9 : +0, -0,025 0,9 2,3 h8 : +0, < 25,4 3 m ± 100mm m ± 10mm 3,1 6.0 h9 : +0, -0, h8 : +0, , m min. 3, m ± 50mm 6, h9 : +0, -0, h8 : +0, ,1 50,8 1,5 m min. 18, m ± 100mm 10, h10 : +0, -0, h8 : +0, , m min. 25, m min. 18, h10 : +0, -0, h8 : +0, , h11 : +0, -0, h9 : +0, , h11 : +0, -0, h9 : +0, , h11 : +0, -0, h10 : +0, h10 : +0, Remarks: For Berylco 33/25 alloys, CuBe2Pb, rods are pointed and chamfered up to Ø16 mm before shipment. Rods can be delivered centerless ground. Contact us NGK Berylco can also supply some profile rods (square, rectangular and hexagonal) cold drawn or hot worked, and some non-standard sizes. High Strength Alloy Temper Diameter (mm) & B33/25 Age hardenable TS Wire Properties YS 0,2% Elongation A50 mini (%) Hardness (HV) Electrical Conductivity (% IACS) Heat Treatment A Ø /2 H Ø H Ø AT Ø > 22 3h at 315 C 1/2 HT Ø > 22 2h at 315 C HT Ø > 22 2h at 315 C Elongation and electrical conductivity are for design guidance only. Wire Dimensional Tolerances Diameter (mm) Standard Tolerances ± ± ± ± ± ± ± Precision Tolerances On demand On demand ± ± ± ± ± Other wire dimensions available on demand. To browse our products, more information or request a quote, visit our website Direct access by flashing our QRcode

6 EUROPE FRANCE GREAT BRITAIN GERMANY NGK BERYLCO France NGK BERYLCO UK Ltd NGK Deutsche BERYLCO GmbH 103 Quai Jean Pierre Fougerat, CS 20017, Houston Park, Montford Street, Westerbachstraße Couëron, France Salford, M50 2RP, U.K Kronberg Im Taunus, Germany Tel : +33 (0) Tel: +44 (0) Tel: +49 (0) Fax: +33 (0) Fax: +44 (0) Fax: +49 (0) SPAIN ITALY TURKEY Massague Rep. Ind. SA Tecnicom Promak Pres Otomasyon San. Calle la Ginesta, 6, Apt de Correos 47 Via G. Passeroni, 6 Perpa Ticaret merkezi B Block K Sant Boi de Llobregat, España MILANO, Italia No:1987 Tel: Tel: /1 Okmeydani Istanbul -TURKIYE Fax: Fax: Tel: tecnicom@mclink.it Fax : makgol@promakmakina.com ASIA JAPAN CHINA CHINA NGK INSULATORS Ltd NGK INSULATORS Ltd NGK INSULATORS Investment Co Ltd New Metal Division, Shanghai Office, Shenzhen Branch Marunouchi Bldg.25F, 2-4-1, Marunouchi, Dawning Centre Tower A Room 1902, Room.8, Level.15, Tower 2, Chiyoda-ku, Tokyo, , Japan No.500 Hongbaoshi Road, Kerry Plaza, No.1 Zhong Xin Si Road, Tel: +81 (0) Shanghai , China Futian District Fax: +81 (0) Tel: Shenzhen , China Fax: Tel : AMERICA INDIA USA INDIA NGK METALS Corporation NGK INSULATORS Ltd 917 U.S. Highway 11 South, New Delhi Liaison Office, Sweetwater, TN 37874, USA 601, 6th floor, DLF Place, A-4, Tel: +1 (800) District Centre, Saket Fax: +1 (877) New Delhi , India Tel: For more information, please visit our website Distributed by : EN 9100 ISO Edition 01/2018 Copyright 2014 by NGK Berylco Europe