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W = C * [0.02466 * (DS) * S] W - galvanized pipe weight per meter: kg / m C - Galvanized pipe than black iron pipe to increase the weight factor D - black iron pipe diameter S - Wall thickness of black iron pipe W = 0.02466 * S * (Nominal diameter-S) Galvanized steel pipe weight per meter = 0.02466x Wall thickness x (outer diameter - wall thickness) X1.06 Galvanized steel is also a steel surface A thin layer of zinc, the density of 7.85kg / cm3 steel pipe weight = 0.25 × Ï€ × (OD Squared - ID Squared) × L × steel ratio where: Ï€ = 3.14 L = the length of the steel pipe to take 7.8, Weight of steel pipe = 0.25 × 3.14 × square of outer diameter - square of inner diameter × L × 7.8 * If the unit of measure takes the meter (M), the calculated weight result is Kg. The density of steel is 7.85g / cm3 Theoretical Weight Calculation The theoretical weight of steel calculated in kilograms (kg). The basic formula is as follows: W (weight, kg) = F (sectional area mm2) × L (length, m) × Ï (density, g / cm3) × 1/1000 The theoretical weight of various steel is calculated by the following formula: ) Calculation formula Symbol Meaning Calculation example Round steel wire rod (kg / m) W = 0.006165 × d × dd = diameter mm Round steel with a diameter of 100 mm, find the weight per m. Each m weight = 0.006165 × 1002 = 61.65kg rebar (kg / m) W = 0.00617 × d × dd = diameter of section mm rebar with a cross-section of 12 mm diameter, for every m weight. Each m weight = 0.00617 × 12 2 = 0.89kg square steel (kg / m) W = 0.00785 × a × aa = square steel with a width of 20 mm and a width of 20 mm, obtain the weight per m. Each m weight = 0.00785 × 202 = 3.14kg flat steel (kg / m) W = 0.00785 × b × db = width mm d = thickness mm width of 40 mm, 5mm thick flat steel, m per weight. Each m weight = 0.00785 × 40 × 5 = 1.57kg hexagonal steel (kg / m) W = 0.006798 × s × ss = mm for the distance to the edge of the distance of 50 mm hexagon, seeking weight per m. Weight per m = 0.006798 × 502 = 17kg Octagonal steel (kg / m) W = 0.0065 × s × ss = octagonal distance from the opposite side of the distance of 80 mm 80 mm, the weight per m. Each m weight = 0.0065 x 802 = 41.62 kg equilateral angle steel (kg / m) = 0.00785 x [d (2b? D) +0.215 (R2? 2r2)] b = edge width d = edge thickness R = radius of inner arc r = radius of end arc Find the weight of 20 mm × 4 mm equilateral angle steel. From the catalog of metallurgical products, it is found that the R of a 4 mm × 20 mm equilateral angle steel is 3.5 and r is 1.2, and the weight per m = 0.00785 × [4 × (2 × 20 4) +0.215 × (3.52 × 2 × 1.2 2 )] = 1.15 kg Unequal angle steel (kg / m) W = 0.00785 × [d (B + b? D) +0.215 (R2? 2 r2)] B = Long side width b = Short side width d = Side Thickness R = Radius of inner arc r = Radius of end arc Find the weight per m of unequal angle steel of 30 mm × 20 mm × 4 mm. From the list of metallurgical products, it is found that the R of a 30 × 20 × 4 unequal angle steel is 3.5 and r is 1.2, and the weight per m = 0.00785 × [4 × (30 + 20? 4) +0.215 × (3.52? 2 1.2 2)] = 1.46 kg channel W = 0.00785 × [hd + 2t (b? D) +0.349 (R2? R 2)] h = high b = leg length d = waist thickness t = average Leg thickness R = Radius of inner arc r = Radius of end arc For every m weight of channel of 80 mm × 43 mm × 5 mm. From the list of metallurgical products, the t is 8, R is 8, and r is 4, the weight per m = 0.00785 × [80 × 5 + 2 × 8 × (43.5) +0.349 × (82.4) W = 0.00785 × [hd + 2t (b? D) +0.615 (R2? R2)] h = height b = leg length d = waist thickness t = average Leg thickness R = Radius of inner arc r = Radius of end arc Find an I-beam of 250 mm × 118 mm × 10 mm per m weight. From the manual of the metal material, it is found that the I-beam is 13, R is 10, and r is 5, the weight per m = 0.00785 × [250 × 10 + 2 × 13 × (118 × 10) +0.615 × 5 2)] = 42.03 kg steel plate (kg / m2) W = 7.85 × dd = 4 mm thick steel plate, and obtain the weight per m2. Per m2 weight = 7.85 × 4 = 31.4kg Steel pipe including seamless steel pipe and welded steel pipe (kg / m) W = 0.02466 × S (D · S) D = Outer diameter S = Wall thickness 60 mm Wall thickness 4 mm The seamless steel pipe, seeking every m weight. Each m weight = 0.02466 × 4 × (60? 4) = 5.52kg