Carbon Steel Pipe Chart

ASME B36.10 — welded and seamless wrought steel pipe dimensions.

Select NPS and Schedule to see dimensions
Size DN (in) OD mm (in) 10 20 30 40 STD 60 80 XS 100 120 140 160 XXS
6 (1/8") 10.29 (0.405") — — — 1.73 1.73 — 2.41 2.41 — — — — 4.83
8 (1/4") 13.72 (0.540") 1.65 — — 2.24 2.24 — 3.02 3.02 — — — — 6.05
10 (3/8") 17.15 (0.675") 1.65 — — 2.31 2.31 — 3.20 3.20 — — — — 6.40
15 (1/2") 21.34 (0.840") 2.11 — — 2.77 2.77 — 3.73 3.73 — — — 4.75 7.47
20 (3/4") 26.67 (1.050") 2.11 — — 2.87 2.87 — 3.91 3.91 — — — 5.56 7.82
25 (1") 33.40 (1.315") 2.77 — — 3.38 3.38 — 4.55 4.55 — — — 6.35 9.09
32 (1-1/4") 42.16 (1.660") 2.77 — — 3.56 3.56 — 4.85 4.85 — — — 6.35 9.70
40 (1-1/2") 48.26 (1.900") 2.77 — — 3.68 3.68 — 5.08 5.08 — — — 7.14 10.16
50 (2") 60.33 (2.375") 2.77 — — 3.91 3.91 4.32 5.54 5.54 6.35 7.14 8.74 9.53 11.07
65 (2-1/2") 73.03 (2.875") 3.05 — — 5.16 5.16 5.77 7.01 7.01 8.89 10.31 11.07 12.70 14.02
80 (3") 88.90 (3.500") 3.05 — — 5.49 5.49 6.35 7.62 7.62 9.53 11.13 12.70 13.49 15.24
90 (3-1/2") 101.60 (4.000") 3.05 — — 5.74 5.74 6.35 8.08 8.08 10.31 11.89 13.49 15.09 —
100 (4") 114.30 (4.500") 3.05 4.78 — 6.02 6.02 7.14 8.56 8.56 11.13 11.10 12.70 13.49 17.12
125 (5") 141.30 (5.563") 3.40 — — 6.55 6.55 7.14 9.53 9.53 13.49 16.66 19.05 21.44 19.05
150 (6") 168.28 (6.625") 3.40 — — 7.11 7.11 — 10.97 10.97 14.27 18.26 21.95 25.40 21.95
200 (8") 219.08 (8.625") 3.76 6.35 7.04 8.18 8.18 10.31 12.70 12.70 18.26 22.23 25.40 28.58 22.23
250 (10") 273.05 (10.750") 4.19 6.35 7.80 9.27 9.27 12.70 15.09 12.70 18.26 22.23 25.40 28.58 25.40
300 (12") 323.85 (12.750") 4.57 6.35 8.38 10.31 9.53 12.70 17.48 12.70 25.40 28.58 33.32 39.67 25.40
350 (14") 355.60 (14.000") 4.78 6.35 7.92 11.13 9.53 12.70 19.05 12.70 27.79 31.75 35.71 39.67 —
400 (16") 406.40 (16.000") 4.78 6.35 7.92 12.70 9.53 12.70 21.44 12.70 26.19 33.32 36.53 42.07 —
450 (18") 457.20 (18.000") 4.78 6.35 7.92 14.27 9.53 12.70 23.83 12.70 29.36 34.93 39.67 45.24 —
500 (20") 508.00 (20.000") 5.54 6.35 9.53 15.09 9.53 12.70 26.19 12.70 32.54 38.10 44.45 50.01 —
550 (22") 558.80 (22.000") 5.54 6.35 9.53 15.09 9.53 12.70 28.58 12.70 34.93 41.28 46.02 53.98 —
600 (24") 609.60 (24.000") 5.54 6.35 9.53 17.48 9.53 12.70 30.96 12.70 38.89 42.07 49.99 59.54 —
650 (26") 660.40 (26.000") 7.92 6.35 9.53 17.48 9.53 12.70 31.75 12.70 39.67 44.45 50.01 59.54 —
700 (28") 711.20 (28.000") 7.92 6.35 9.53 17.48 9.53 12.70 31.75 12.70 39.67 47.63 53.98 63.50 —
750 (30") 762.00 (30.000") 7.92 6.35 9.53 17.48 9.53 12.70 31.75 12.70 39.67 47.63 53.98 66.68 —
800 (32") 812.80 (32.000") 7.92 6.35 9.53 17.48 9.53 12.70 31.75 12.70 41.28 47.63 57.15 66.68 —
850 (34") 863.60 (34.000") 7.92 6.35 9.53 17.48 9.53 12.70 31.75 12.70 41.28 49.99 57.15 66.68 —
900 (36") 914.40 (36.000") 7.92 6.35 9.53 19.05 9.53 12.70 31.75 12.70 42.07 50.01 57.15 66.68 —
1050 (42") 1,066.80 (42.000") 9.53 — — 9.53 9.53 — 12.70 12.70 — — — — —

Values in mm. Weight calculated per ASTM standard formula: W = π × t × (OD − t) × 7850 / 10⁶ (kg/m, steel density 7850 kg/m³).
— = Schedule not available for this NPS. STD ≈ Standard, XS ≈ Extra Strong, XXS ≈ Double Extra Strong.