NEWS VACANCIES DOWNLOADS CONTACT US Aluminium Specifications Aluminium Alloys Mechanical Properties Metal UTS 0.2% Proof Elong BHN Density N/mm² TPSI N/mm² TPSI % LM25M 130/150 8.0/10.0 80/100 5.0/6.5 2.0/3.0 55/65 2.68 LM25TF 230/280 15.0/18.0 200/250 13.0/16.0 0.0/2.0 90/100 2.68 LM25TB7 160 10.0 80/110 5.0/7.0 2.5 65/75 2.68 2L99 230 14.8 185 12.0 2.0 80 2.68 A356T6 234 15.0 166 10.8 5.0 70/100 2.68 356F 130 8.4 120 80 2.0 55 2.68 356T6 207 13.3 138 8.9 3.0 70 2.68 356T7 214 13.8 126 8.1 3.0 75 2.68 356T51 159 10.2 110 7.1 3.0 60 2.68 356T71 172 11.1 124 8.0 3.0 60 2.68 40E 215 13.9 170 11.0 4.0 60/100 2.80 712 224 14.4 172 11.1 4.0 75 2.80 LM31 215 13.9 170 11.0 4.0 60/100 2.68 Vanasil 170 11.0 140 9.0 0.5 100 - Comparision with International Specifications BSI1490 ISO France Germany USA Aerospace LM25 AlSi7Mg A-S7g G-AlSi7Mg A356 BS2L99 BSL173 BSL174 Comparison of LM25 physical properties with 6061 & 6082 wrought aluminium LM25 6061 6082 Thermal Conductivity (% IACS) 38.4 39.6 43.7 Coefficient of linear expansion (20 - 100° C) 22x10-6 24x10-6 23x10-6 Electrical Conductivity (%IACS @ 20° C) 39 43.1 43.7 Hardness (Brinell) 60 - 105 60 - 100 60 - 100 Modulus of Elasticity 71 69 69 Standard Aluminium Alloys Silicon Magnesium Series These alloys are the best general purpose high strength cast alloys available and can be supplied with a variety of heat treatments. They also have good salt water corrosion resistance and can be anodised to produce a thick black colour. Decorative anodising is not possible due to the metallic silicon content. A356 An American specification that is is generally made available to meet the requirements of the American Military. LM25 Our most commonly used cast aluminium alloy and can be supplied as cast or heat treated. 2L99 This is a more tightly controlled version of LM25 for aerospace applications. Zinc Magnesium Series These alloys are less easy to cast because of their high viscosity in the liquid state. 40E This alloy is particularly suitable for castings which require flame or dip brazing. Components using this material should have uniform wall sections. To achieve corrosion resistance an additional surface treatment such as anodising or chromatic conversion is necessary. The material machines very well and is self ageing at room temperature, therefore hardening and strengthening over about three weeks. 712/LM31 These alloys are similar to 40E and are often specified for defence and space applications. Special Aluminium Alloys Vanasil Sylatech pioneered the use of this difficult material. It is a very high silicon alloy which has a relatively low co-efficient of expansion which is compatible with stainless steel between -50 to +70O C (-60 to +160O F). It is used in the manufacture of gyroscopes and highly-stressed pistons. Aluminium and copper alloys are non-magnetic whilst retaining excellent thermal and electrical conductivity. This is becoming of increasing importance in numerous applications. Sylatech Design Guide DOWNLOAD THE DESIGN GUIDE Get in touch! Our sales team will be happy to discuss your requirements. CONTACT US TODAY QUICK LINKS About Us Contact Us Terms & Conditions STAY INFORMED By submitting my information I consent to the use of my personal information in accordance with the Privacy Statement and acknowledge that I have read and accepted this. CONTACT US Sylatech Limited, Kirkdale Road, Kirkbymoorside, North Yorkshire, YO62 6PX Phone: +44 (0) 1751 432 355 Email: engineer@sylatech.com © Copyright 2021 Ace Digital Design | All Rights Reserved | Articles Twitter LinkedIn Facebook Instagram