fischer installation-systems main-catalogue Page 477
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fischer Catalogue Installation Systems Important dimensions, variables and units. Comparison of material standards DIN EN ISO DIN EN ISO Description Material-No. ASTM S250GD+Z 1.0242 EN10027-2 A653 DD11 1.0332 DIN EN 10111 A621CQ DC01 1.0330 DIN EN 10130 A366 St22 1.0320 DIN 1614-1 n/a DX51D+Z275NA-C 1.0226+Z DIN EN 10327 A653/CQ S235JR 1.0037 DIN EN 10025 A283 S355MC 1.0976 DIN EN 10149 n/a 4.6; 4.8 DIN EN ISO 898-1 F568M Variables and units Formula symbol Unit SI others related Note [mm] [mm] [kg/m] [kg/m] [m] Length l m – 1 m = 10 dm = 100 cm = 1.000 mm 1 mm = 1.000 µm 1 km = 1.000 m 1 inch = 1 Zoll = 25.4 mm Area A, S m² a, ha 1 m² = 10.000 cm² = 1.000.000 m² 1 a = 100 m² 1 ha = 100 a = 10.000 m² – Volume V m³ l 1 m³ = 1.000 dm³ = 1.000.000 cm³ 1 l = 1 dm³ = 0.001 m³ 1 ml = 1 cm³ – Time t s min, h, d 1 min = 60 s 1 h = 60 min = 3.600 s 1 d = 24 h – Size 10 Frequency f Hz – 1 Hz = 1/s – Speed v m/s m/s, km/h 1 m/s = 3.6 km/h – Acceleration a, g m/s² – g = 9.81 m/s² Formula character g only for acceleration due to gravity Weight m kg g, t 1 kg = 1.000 g 1 t = 1.000 kg – Density ρ kg/m³ – 1.000 kg/m³ = 1 t/m³ = 1 kg/dm³ – Moment of inertia, 2nd degree J kg · m² – – Formerly: Mass moment of inertia Force F N – 1 N = 1 kg · m/s² Formerly: kp (kilopond) 1 kp = 9,80665 kgm/s² = 9,81 N Torque M N·m – – – Bending moment Mb N·m – – – Torsion moment T N·m – – – Mechanical tension σ, τ N/m² – – – Area-wise moment, 2nd degree I m4 – – Formerly: Area moment of inertia Energy, work E, W J – 1J=1N·m=1W·s Formerly: cal (calorie) 1 cal = 4,1868 Ws = 4,19 J Power P W – 1 W = 1 J/s = 1 N · m/s Formerly: hp (horsepower) 1 PS = 75 kpm/s = 75 · 9,81 N/ms = 0,736 kW Thermodynamic temperature T K – 0 °C = 273 K -273 °C = 0 K – Heat quantity Q J (Wh) 1J=1W·s=1N·m – Specific heat value H J/kg – – – Substance quantity n mol – 1 corresponds to approx 6 · 10²³ – Light intensity lv cd – – – 477
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