Theoretical weight of sanitary pipe fittings

　　 1. Calculation method of theoretical weight of metal materials (unit: kg)

Angle steel: weight per meter = 0.00785* (side width + side width-side thickness) * side thickness round steel: weight per meter = 0.00617* diameter * diameter (rebar and round steel are the same) flat steel: weight per meter = 0.00785* Thickness*Width

　　Pipe: weight per meter=0.02466*wall thickness*(outer diameter-wall thickness) stainless steel pipe:(outer diameter-wall thickness)×wall thickness×0.02491=kg/m Plate: weight per meter=7.85*thickness

Brass tube: weight per meter = 0.02670 * wall thickness * (outer diameter-wall thickness) copper tube: weight per meter = 0.02796 * wall thickness * (outer diameter-wall thickness) aluminum pattern plate: weight per square meter = 2.96 *thickness

　　 Specific gravity of non-ferrous metals: red copper plate 8.9 brass plate 8.5 zinc plate 7.2 lead plate 11.37 The calculation formula of non-ferrous metal plate is: weight per square meter = specific gravity * thickness 2. Calculation formula of elbow weight

　　 Ring volume=2X3.14X3.14(r^2)R r--circle radius R--circle radius of gyration

　　 Volume of hollow tube ring=2X3.14X3.14((r^2)-(r’^2))R r’--Inner circle radius of ring

The volume of elbows (elbows) of 90, 60, and 45 degrees is 1/4, 1/6, and 1/8 of the volume of the corresponding hollow pipe ring. The density of steel is calculated based on 7.85 kg/cubic decimeter when density is calculated. Density * volume = weight (mass). 1. The 180° elbow is calculated twice, and the 45° is calculated according to 1/2; 2. The R1.0DN elbow weight is calculated according to table 2/3;

3. The weight of the wall thickness is not listed in the table, the average value of the two weights close to it can be taken; 4. The calculation formula of the 90° elbow; 0.0387*S(DS)R/1000 where S=wall thickness mm D = Outer diameter mm R = bending radius mm

　　 Second, the following is the calculation formula of welding elbow

　　 1. Outer diameter-wall thickness X wall thickness X0.0387X bending radius÷1000, =90°theoretical weight of the elbow Example: 426*10 90°R=1.5D

(426-10)*10*0.387*R600÷1000=96.59Kg 180° elbow is calculated twice as shown in the table, 45° is calculated as 1/2; 2. (outer diameter-wall thickness) X wall thickness X0.02466XR Multiple X1.57X nominal diameter = theoretical weight of 90° elbow

　　 Example: Example: 426*10 90°R=1.5D

　　(426-10)*10*0.02466*1.5D*1.57*400=96.6Kg 180° elbow is calculated twice as shown in the table, 45° is calculated as 1/2.