What is the outside diameter of 3 inch pipe?

88.9 mm (3.500 in), in any schedule: it is the DN 80 pipe of ASME B36.10M. The wall changes with the schedule, and the inside diameter with it.

What is the wall thickness of 3 inch schedule 40 pipe?

5.49 mm (0.216 in), with an inside diameter of 77.92 mm (3.068 in); carbon steel pipe weighs 11.29 kg/m (7.58 lb/ft).

What is the difference between schedule 40 and 80 in 3 inch pipe?

The wall: 5.49 mm (0.216 in) in schedule 40 and 7.62 mm (0.300 in) in 80. The outside diameter is the same, so schedule 80 has the smaller bore -- 73.66 mm (2.900 in) against 77.92 mm (3.068 in) -- and weighs 15.27 kg/m (10.26 lb/ft) against 11.29 kg/m (7.58 lb/ft).

3 inch pipe (DN 80): outside diameter, wall thickness and weight by schedule

A 3 inch pipe (DN 80) has a 88.9 mm (3.500 in) outside diameter in every schedule: what changes is the wall, and with it the inside diameter and the weight. Designations that give the same wall share a row.

Schedule	Wall	ID	Weight
Sch 5 / 5S	2.11 mm (0.083 in)	84.68 mm (3.334 in)	4.52 kg/m (3.03 lb/ft)
Sch 10 / 10S	3.05 mm (0.120 in)	82.80 mm (3.260 in)	6.46 kg/m (4.34 lb/ft)
Sch 30	4.78 mm (0.188 in)	79.34 mm (3.124 in)	9.92 kg/m (6.66 lb/ft)
Sch 40 / STD / 40S	5.49 mm (0.216 in)	77.92 mm (3.068 in)	11.29 kg/m (7.58 lb/ft)
Sch 80 / XS / 80S	7.62 mm (0.300 in)	73.66 mm (2.900 in)	15.27 kg/m (10.26 lb/ft)
Sch 160	11.13 mm (0.438 in)	66.64 mm (2.624 in)	21.35 kg/m (14.34 lb/ft)
XXS	15.24 mm (0.600 in)	58.42 mm (2.300 in)	27.68 kg/m (18.60 lb/ft)

Plain-end weight of carbon steel pipe, by the standard's own formula: 10.69 × (D − t) × t in lb/ft, with D and t in inches (0.0246615 × (D − t) × t in kg/m, in mm). Austenitic stainless weighs about 2% more.

Lay out on 3 inch pipe

The outside diameter and the wall of the chosen schedule go to the calculator, which opens with them filled in and draws without an account.

Schedule Pipe saddle (90° tee) 90° lobster back bend

Questions

What is the outside diameter of 3 inch pipe?: 88.9 mm (3.500 in), in any schedule: it is the DN 80 pipe of ASME B36.10M. The wall changes with the schedule, and the inside diameter with it.
What is the wall thickness of 3 inch schedule 40 pipe?: 5.49 mm (0.216 in), with an inside diameter of 77.92 mm (3.068 in); carbon steel pipe weighs 11.29 kg/m (7.58 lb/ft).
What is the difference between schedule 40 and 80 in 3 inch pipe?: The wall: 5.49 mm (0.216 in) in schedule 40 and 7.62 mm (0.300 in) in 80. The outside diameter is the same, so schedule 80 has the smaller bore -- 73.66 mm (2.900 in) against 77.92 mm (3.068 in) -- and weighs 15.27 kg/m (10.26 lb/ft) against 11.29 kg/m (7.58 lb/ft).

3 inch pipe (DN 80): outside diameter, wall thickness and weight by schedule

Lay out on 3 inch pipe

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