Carbon steel Pipe 18" STD — ASME B36.10M
Carbon steel Pipe 18" STD to ASME B36.10M: outside diameter 457 mm, wall thickness 9.53 mm, inside diameter 437.9 mm, mass per metre 105.16 kg/m; approx. weight 105.16 kg/m.
Dimensions of Carbon steel Pipe 18" STD
| Symbol | Dimension | Value |
|---|---|---|
| D | Outside diameter | 457 mm (17.992 in) |
| T | Wall thickness | 9.53 mm (0.375 in) |
| d | Inside diameter | 437.9 mm (17.240 in) |
| m | Mass per metre | 105.16 kg/m (70.66 lb/ft) |
| m | Approximate weight | 105.16 kg/m (70.66 lb/ft) |
SKU TSH-PIPE-CS-B3610-STD-18 · Standard ASME B36.10M · weight: per metre — (D − T) × T × 0.02466
Purchase description
PIPE, 18" (DN 450), STD (9.53 MM), SEAMLESS, BEVELLED ENDS, ASTM A106 GR B, ASME B36.10M
Available materials: ASTM A106 Gr B, ASTM A53 Gr B, API 5L Gr B PSL1, ASTM A333 Gr 6, ASTM A335 P11, ASTM A335 P22, ASTM A335 P91.
Additional data
| Mass, 6 m length | 631.0 kg |
| Mass, 12 m length | 1261.9 kg |
| Lengths per tonne (6 m) | 1.6 |
| Water capacity | 150.63 L/m |
| External surface | 1.436 m²/m |
| Mill hydrotest (ASTM A530, 60 % SMYS) | 60 bar |
| Indicative MAWP at ≤ 200 °C (B31.3, S 138 MPa, −12.5 %, c = 0) | 51 bar |
Same size, other ratings
Other sizes — Carbon & alloy pipe, STD
⅛"¼"⅜"½"¾"1"1 ¼"1 ½"2"2 ½"3"3 ½"4"5"6"8"10"12"14"16"20"22"24"26"28"30"32"34"36"42"48"
Frequently asked questions
What is the difference between NPS, NB and DN?
NPS (Nominal Pipe Size) is the North American size designation in inches. NB (Nominal Bore) is the same idea used in India and the UK. DN (Diamètre Nominal) is the metric designation in millimetres. They name the same sizes: NPS 4 = 4" NB = DN 100. None of them is the actual outside diameter for sizes up to NPS 12.
What is the outside diameter of a 4 inch pipe?
A 4" (NPS 4, DN 100) pipe to ASME B36.10M has an outside diameter of 114.3 mm (4.500 in) for every schedule. Only the wall thickness and bore change with the schedule.
Why is the OD of a pipe different from its nominal size?
From NPS ⅛ to NPS 12 the nominal size is a historical bore reference, so the OD is larger than the number (a 2" pipe is 60.3 mm OD). From NPS 14 upward, the OD in inches equals the NPS: a 14" pipe is 355.6 mm OD.
What does pipe schedule mean?
A schedule number (Sch 10, 40, 80, 160) sets the wall thickness for a given pipe size. The same schedule gives a different thickness at each size. Sch 40 is 3.91 mm at 2" but 8.18 mm at 8".