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Titanium Comparison values Material Density kg/m3 Melting point °C W / (m.K) Coefficient of thermal expansion Thermal conductivity W / (m.K) Electrical resistivity Ohm x m Modulus of elasticity MPa Titanium 4505 1688 8,4 x 10 -6 17 55 x 10 -8 106,4 x 10 3 Iron 7900 1530 12 x 10 -6 63 9,7 x 10 -8 206,0 x 10 3 Aluminium 2700 660 23 x 10 -6 205 2,7 x 10 -8 69,2 x 10 3 Nickel 8900 1453 15 x 10 -6 92 9,5 x 10 -8 206,0 x 10 3 Copper 8900 1083 17 x 10 -6 385 1,7 x 10 -8 107,9 x 10 3 Stainless steel 7900 1410 17 x 10 -6 16 72 x 10 -8 200,1 x 10 3 Brass 8400 970 18,5 x 10 -6 100 7,5 x 10 -8 107,9 x 10 3 Monel 8800 1325 14 x 10 -6 26 48 x 10 -8 179,5 x 10 3 Analyses and mechanical properties Quality Gr. 1 Gr. 2 Gr. 4 Gr. 5 Gr. 7 Gr. 9 Gr .11 Gr. 12 Analysis % Fe max 0,20 0,30 0,50 0,40 0,30 0,25 0,20 0,30 O max 0,18 0,25 0,40 0,20 0,25 0,15 0,18 0,25 N max 0,03 0,03 0,05 0,05 0,03 0,02 0,03 0,03 C max 0,08 0,08 0,08 0,08 0,08 0,08 0,08 0,08 H max 0,015 0,015 0,015 0,015 0,015 0,015 0,015 0,015 Pd - - - - 0,12-0,25 - 0,12-0,25 - Al - - - 5,5-6,7 - 2,5-3,5 - - V - - - 3,5-4,5 - 2,0-3,0 - - M0 - - - - - - - 0,2-0,4 Yield point N/mm 2 Rp 0,2 min 170 275 483 828 275 483 170 345 Ultimate Tensile Strength N/mm 2 Rm 240 345 550 895 345 620 240 483 Vickers Hardness ca 140 170 310 330 170 250 140 170 Bongation 5 x d % min 24 20 15 10 20 15 24 18 Calculated values at 20°C and higher temperatures Temp. °C Gr. 2 N/mm -40+20 173 50 173 75 167 In strength calculations, the creep properties of titanium at 20°C must also be the basis of the 100 153 calculated values. The following calculated values are based on the creep-rupture value for 100,000 150 126 hours. From the strength standpoint, the maximum useful temperature for titanium alloy grades is 200 102 250 85 about 350°C. For unstressed components, the oxidation limit is fixed at about 500°C. Örnalp is basically out on its own where titanium is concerned but still very skilled for all that. Their greatest strength is their reliability. They always do a great job. Anders Ljungberg , Head of Maintenance, Akzo Nobel Skoghall Titanium Our quality department ensures documentation, claims management, follow up and procedures is in place to meet the highest demands. Our companies hold a number of certificates, including am ng ot ers: ISO 9001 ISO14001 ISO 3834-2 EN 1090 China Manufacture Licens of Special Equipment OHSAS 18001 In addition we regularly work with classification companies such as DNV, ABS and the likes.