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Seamless steel pipe under pressure calculation formula method
Sources: this site Click: Date: 2014-8-7 2:29:30
1: to know specifications seamless pipe seamless steel pipe diameter thickness can withstand the pressure calculating method (steel pipe different material tensile strength)
Pressure = (thickness * 2 * steel pipe material tensile strength) / * coefficient (diameter)
2: to know seamless pipe seamless steel pipe diameter and wall thickness calculation method: under pressure
Wall thickness = (* * diameter pressure coefficient)/(2 * steel pipe material tensile strength)
Three: steel pipe pressure coefficient representation:
Pressure P < 7 mpa coefficient S = 8
7 < steel pressure (P < 17.5 coefficient S = 6
Pressure (P > 17.5 coefficient S = 4
Steel tube theory weighing scale
Unit: Kg/m
3 3.5 4 wall thickness diameter 4.5 5, 5.5 6
Note: commonly used profile theory weight calculation formula:
M = F * L * rho
M - quality Kg;F - area of m2 / m;L m - length;Density of rho - * Kg/m3
Do among them: F area calculation method is:
1, square steel F = a2
2, steel pipe F = 3.1416 x $(D - $) D - diameter $- thickness
3, steel, flat steel F = a * $a - width
Density:
Steel: 7.85 * 103 kg/m3
Aluminum: 2.5 ~ 2.95 * 103
Copper: 8.45 ~ 8.9 * 103
Cast iron: 6.6 ~ 7 * 103
Nylon: 1.04 ~ 1.15 * 103
The classification of small diameter seamless steel tube
High quality carbon structural steel
Carbon structural steel
High strength low alloy structural steel
Alloy structural steel
Stainless steel
20 # steel
The general specification small diameter seamless steel tube
3 mm- 42 mm outside diameter ,you used to call it between the diameter of the small diameter seamless pipe, because he is small.
Wall thickness (0.8 mm to 12 mm) can also be divided into: small diameter thick-walled seamless pipe, small diameter thin-walled seamless tube.
