Glass - hemical Resistance Acids - concentrated Acids - dilute Alkalis Halogens Metals Good Good Fair Good Fair SiO MAOR Machinable Glass SiO 46/Al O3 6/MgO 7/KO Poor Fair Fair - -
Electrical resistivity mohmcm Glass - Electrical Properties Volume resistivity Ohmcm obalt/boron/silicon/iron/ 36 - Molybdenum/ o69/b /Si/Fe 4/Mo /Ni Iron/ 4 - o66/si5/b 4/Fe 4/Ni 30 - o70/si+b 3/Mn 5/Fe+Mo obalt/silicon/molybdenum/ 35 - o78/si 9/Mo 5/Fe 4/B /Nb - 0 4 @5 SiO 4 - Fe77.5/B 5/Si 7.5 37 - Fe78/B 3/Si 9 5 - Fe79/B 6/Si 5 35 - Fe8/B 3.5/Si 3.5/ Iron//Boron 740 - Fe40/Ni38/B 8/Mo 4 MAOR Machinable Glass - >0 4 @5 SiO 46/Al O3 6/MgO 7/KO /Boron/Silicon 90 - Ni78/B 4/Si 8 /Iron/Silicon/Boron Ni40/Fe40/Si+B 9/Mo - 35 -
oercivity - as cast A m - urie temperature Glass - Magnetic Properties Maximum permeability Remanence ratio - Br/Bs Saturation flux density T Saturation magnetostriction x0-6 obalt/boron/silicon/iron/ 0.8 365-0.83 0.70 < Molybdenum/ o69/b /Si/Fe 4/Mo /Ni Iron/ 0.4 05-0.8 0.55 < o66/si5/b 4/Fe 4/Ni < 350-0.7-0.95 0.8 <0.3 o70/si+b 3/Mn 5/Fe+Mo obalt/silicon/molybdenum/ - 40 - - 0.58 - o78/si 9/Mo 5/Fe 4/B /Nb.46-365-500nm 75 3.8 - SiO - 4 - - - - Fe77.5/B 5/Si 7.5 4 45-0.76.56 7 Fe78/B 3/Si 9 6 405-0.9.58 7 Fe79/B 6/Si 5 6.37 370-0.7.6 30 Fe8/B 3.5/Si 3.5/ MAOR Machinable Glass - 40 - - 5.9 - SiO 46/Al O3 6/MgO 7/KO /Iron/Silicon/Boron Ni40/Fe40/Si+B 9/Mo - < 60 - < 0.8 8 3
Glass - Mechanical Properties ompressive strength MPa Elongation at break Hardness - Vickers kgf mm - Tensile modulus GPa Tensile strength MPa obalt/boron/silicon/iron/ - - 900 63 >700 Molybdenum/ o69/b /Si/Fe 4/Mo /Ni Iron/ - - 960 6 >700 o66/si5/b 4/Fe 4/Ni - - 900 50 500-000 o70/si+b 3/Mn 5/Fe+Mo - - 490 65-75 - SiO -.3 940 55 - Fe77.5/B 5/Si 7.5 - - 860 57 >700 Fe78/B 3/Si 9 - - 900-500 Fe79/B 6/Si 5 Fe8/B 3.5/Si 3.5/ - - 880 58 >700 Iron//Boron Fe40/Ni38/B 8/Mo 4 MAOR Machinable Glass SiO 46/Al O3 6/MgO 7/KO Magnetic opper u99.96/fe 0.04 /Boron/Silicon Ni78/B 4/Si 8 /Iron/Silicon/Boron Ni40/Fe40/Si+B 9/Mo - - - 5 0-00\ -.7 345-400 67 - -. - - 539 - - 850 50 500-000 - - 800 50 500-000 4
Apparent porosity Glass - Physical Properties Density g cm -3 Water absorption - saturation Borosilicate Glass SiO 8 / B O3 3 / NaO 4 arbon - Vitreous - 000 obalt/boron/silicon/iron/ Molybdenum/ o69/b /Si/Fe 4/Mo /Ni Iron/ o66/si5/b 4/Fe 4/Ni o70/si+b 3/Mn 5/Fe+Mo obalt/silicon/molybdenum/ o78/si 9/Mo 5/Fe 4/B /Nb -.3 - - - - -.5 - - - - - 7.80 - - 7.59 - - 7.6 - - 7.75-0.8 0 SiO - 7.8 - Fe78/B 3/Si 9-7.8 - Fe79/B 6/Si 5-7.3 - Fe8/B 3.5/Si 3.5/ Iron//Boron - 7.90 - Fe40/Ni38/B 8/Mo 4 MAOR Machinable Glass 0.5 - SiO 46/Al O3 6/MgO 7/KO Magnetic opper - 8.96 - u99.96/fe 0.04 /Boron/Silicon - 8.0 - Ni78/B 4/Si 8 /Iron/Silicon/Boron - 7.4 - Ni40/Fe40/Si+B 9/Mo - Soda Lime Glass SiO 70/Na O 5/aO 0/ MgO/BO3/AlO3 -.5-5
Apparent porosity Glass - Physical Properties Density g cm -3 Water absorption - saturation Topaz (Yellow Imperial) Al SiO 4 (F,OH) Turquoise ual 6 (PO 4 )4(OH) - 3.55 - -.7-6
Glass - Thermal Properties oefficient of thermal expansion x0-6 K - rystallization temperature Maximum use temperature in air Specific heat J K - kg - Thermal conductivity W m - K - Upper continuous use temperature obalt/boron/silicon/iron/ - 50 80 - - - Molybdenum/ o69/b /Si/Fe 4/Mo /Ni Iron/ - 550 80 - - - o66/si5/b 4/Fe 4/Ni - 450 80-0 - - - o70/si+b 3/Mn 5/Fe+Mo obalt/silicon/molybdenum/ @ 0-00 - - - - - o78/si 9/Mo 5/Fe 4/B /Nb 0.5-0.75 @0-000 - - 750 @5.-.4 @0 900-00 SiO 8.7 @0 553 - - - - Fe77.5/B 5/Si 7.5-550 50 - - - Fe78/B 3/Si 9-55 50 - - - Fe79/B 6/Si 5-480 5 - - - Fe8/B 3.5/Si 3.5/ Iron//Boron - - - - 00-0 - Fe40/Ni38/B 8/Mo 4 MAOR Machinable Glass 3 @0-000 - - 790 @5.5 @0 800-000 SiO 46/Al O3 6/MgO 7/KO Magnetic opper - - - - 40 @3 - u99.96/fe 0.04 /Boron/Silicon - 450 00 - - - Ni78/B 4/Si 8 /Iron/Silicon/Boron Ni40/Fe40/Si+B 9/Mo - - 450 0 - - - 7