SIZE | PIPE O.D. | SCHED 10 316, SCHED 10 304 & SCHED 40 304 Wall Thickness | SCHED 10 316, SCHED 10 304 & SCHED 40 304 I.D. | SCHED 40 316 Wall Thickness | SCHED 40 I.D. |
1/8” NB | 10.29mm | 1.73mm | 6.83mm | ||
1/4” NB | 13.72mm | 2.24mm | 9.24mm | ||
3/8” NB | 17.15mm | 2.31mm | 12.53mm | ||
1/2” NB | 21.34mm | 2.11mm | 17.12mm | 2.77mm | 15.8mm |
3/4” NB | 26.67mm | 2.11mm | 21.13mm | 2.87mm | 20.93mm |
1” NB | 33.4mm | 2.77mm | 27.86mm | 3.38mm | 26.64mm |
1-1/4” NB | 42.16mm | 2.77mm | 36.62mm | 3.56mm | 35.04mm |
1-1/2” NB | 48.26mm | 2.77mm | 42.72mm | 3.68mm | 40.9mm |
2” NB | 60.33mm | 2.77mm | 54.79mm | 3.91mm | 52.51mm |
2-1/2” NB | 73.03mm | 3.05mm | 66.93mm | 5.16mm | 62.71mm |
3” NB | 88.90mm | 3.05mm | 82.80mm | 5.49mm | 77.92mm |
4” NB | 114.3mm | 3.05mm | 108.2mm | 6.02mm | 102.26mm |
5” NB | 141.3mm | 3.40mm | 134.50mm | 6.55mm | 128.20mm |
6” NB | 168.28mm | 3.40mm | 161.48mm | 7.11mm | 154.06mm |
8” NB | 219.08mm | 3.76mm | 211.56mm | 8.18mm | 202.72mm |
10” NB | 273.05mm | 4.19mm | 264.67mm |
|
|
TOLERANCE (Permissible variations in dimensions in accordance with ASTM A312)
Up to 2"NB (21.34mm) - Outside Diameter +0.4mm/-0.8mm Wall Thickness +20%/-12.5%
PLEASE NOTE, THESE ARE THE MAXIMUM ALLOWABLE TOLERANCES AND IN REALITY THE TUBES ARE UNLIKELY TO BE OVER/UNDER BY THESE AMOUNTS, HOWEVER PLEASE CHECK WITH OUR SALES OFFICE IF YOU HAVE A CRITICAL APPLICATION.