ISO 9001 Certified NATIONAL ELECTRONIC ALLOYS Specialty Metal Service Center • Dedicated to Customer Service & Quality Nickel Iron Alloy Comparison Chart (For reference only) CHEMICAL COMPOSITION % ASTM F15 Alloy 36 Alloy Chemical Element Percentage (Kovar) 52 Alloy 48 Alloy 46 Alloy 42 Alloy (Invar) Iron Nominal Bal Bal Bal Bal Bal Bal Nickel Nominal 29 50.5 48 46 41 35 Cobalt Nominal 17 0.50 Manganese Max. 0.50 0.60 0.80 0.80 0.80 0.60 Silicon Max. 0.20 0.30 0.30 0.30 0.30 0.40 Carbon Max. 0.04 0.05 0.05 0.05 0.05 0.05 Aluminum Max. 0.10 0.10 0.10 0.10 0.10 0.10 Magnesium Max. 0.10 0.10 Zirconium Max. 0.10 0.10 Titanium Max. 0.10 0.10 Copper Max. 0.20 Chromium Max. 0.20 0.25 0.25 0.25 0.25 0.25 Molybdenum Max. 0.20 Phosphorus Max. 0.025 0.025 0.025 0.025 0.015 Sulfur Max. 0.025 0.025 0.025 0.025 0.015 PHYSICAL PROPERTIES ASTM F15 Alloy 36 Alloy Property Unit (Kovar) 52 Alloy 48 Alloy 46 Alloy 42 Alloy (Invar) Density Lbs/in² 0.302 0.300 0.298 0.295 0.293 0.291 Specific Gravity 8.36 8.30 8.25 8.17 8.12 8.05 Specific Heat 0.12 0.12 0.12 0.123 Curie Temperature °F 815 986 880 860 716 535 Melting Point °F 2640 2600 2600 2600 2600 2600 Electrical Resistivity Ohm-cir mil/ft 294 260 290 277 430 495 Thermal Conductivity BTU/In/ft²/hr/°F 120 97 90 79.2 74.5 72.6 Linear coefficient of thermal expansion cm. per cm. per °C x 10–6 Temp. range – °C Kovar - 1 52 Alloy - 2 48 Alloy - 3 46 Alloy - 4 42 Alloy - 5 42-6 Alloy - 6 Invar - 7 30-150 — — — — — — 1.2 - 2.7 30-200 — — — — — — — 30-300 — — — — 4.0 - 4.7 — — 30-350 — — — 7.1 - 7.8 — 8.5 - 9.2 — 30-400 4.6 - 5.2 — 8.2 - 9.2 — — — — 30-425 — — — — — 9.7 - 10.4 — 30-450 5.1 - 5.5 9.6 - 10.1 — — 6.7 - 7.4 — — 30-500 — — — 8.2 - 8.9 — — — 30-550 — 10.2 - 10.7 9.6 - 10.3 — — — — MECHANICAL PROPERTIES (As Annealed) Tensile Strength PSI x 1000 75 80 79 80 82 65 Yield Strength PSI x 1000 50 40 36 35 40 40 Elongation % in 2” 30 35 30 30 30 35 Hardness Rockwell B 80 80 80 80 80 80 Elastic Modulus psi x 10(-6) 24 21 21.5 20.5 Kovar • Invar 36 • 42 Alloy • 45/46 Alloy • 48/49 Alloy • 52 Alloy • Sheilding Alloys • Hymu 80 • Nickel 200/201 1 18 1A PERIODIC TABLE OF ELEMENTS 8A 1 2 1 H He Hydrogen 2 13 14 15 16 17 Helium 1.01 2A Key 3A 4A 5A 6A 7A 4.00 3 4 5 6 7 8 9 10 11 Atomic number 2 Li Be Element symbol B C N O F Ne Lithium Beryllium Na Boron Carbon Nitrogen Oxygen Fluorine Neon 6.94 9.01 Sodium Element name 10.81 12.01 14.01 16.00 19.00 20.18 22.99 11 12 Average atomic mass 13 14 15 16 17 18 3 Na Mg Al Si P S Cl Ar Sodium Magnesium 3 4 5 6 7 8 9 10 11 12 Aluminum Silicon Phosphorus Sulfur Chlorine Argon 22.99 24.31 3B 4B 5B 6B 7B 8B 1B 2B 26.98 28.09 30.97 32.07 35.45 39.95 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton 39.10 40.08 44.96 47.87 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 72.61 74.92 78.96 79.90 83.80 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 5 Rb Sr YZrNbTMo cRuRhAPd gCdInSnSbTeIXe Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon 85.47 87.62 88.91 91.22 92.91 95.94 (98) 101.07 102.91 106.42 107.87 112.41 114.82 118.71 121.76 127.60 126.90 131.29 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 6 Cs Ba La Hf Ta WReOsIrPtAuHgTlPbBiPoAt Rn Cesium Barium Lanthanum Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon 132.91 137.33 138.91 178.49 180.95 183.84 186.21 190.23 192.22 195.08 196.97 200.59 204.38 207.2 208.98 (209) (210) (222) 87 88 89 104 105 106 107 108 109 7 Fr Ra Ac Rf Db Sg Bh Hs Mt Francium Radium Actinium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium (223) (226) (227) (261) (262) (266) (264) (269) (268) 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium 140.12 140.91 144.24 (145) 150.36 151.96 157.25 158.93 162.50 164.93 167.26 168.93 173.04 174.97 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Th Pa UNpPuAmCmBkCfEsFmNMd oLr Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium 232.04 231.04 238.03 (237) (244) (243) (247) (247) (251) (252) (257) (258) (259) (262) EAST COAST ISO 9001 Certified WEST COAST 3 Fir Court, Oakland, NJ 07436 Specialty Metal Service Center 1335 East Warner Ave., Santa Ana, CA 92705 Dedicated to Customer Service & Quality 201-337-9400 • Fax: 201-337-9698 714-556-5561 • Fax: 714-556-5562 Toll Free: 800-524-4309 NATIONAL ELECTRONIC ALLOYS Toll Free: 877-632-9378 Email: [email protected] www.nealloys.com Email: [email protected] Molybdenum • OFHC Copper 101/102 • 304/316 Stainless • Nickel Silver • Cupro Nickel • 1010 Steel.