API / ASME Pipes

API 5L / ASME B36.10 · 57 sections

Free Reference Data

API 5L / ASME B36.10 pipes are carbon steel line pipes and structural pipes widely used in the oil and gas industry, process piping, and offshore structures. Available in schedule designations from SCH 20 to SCH XXS.

Designation	OD (mm)	t (mm)	A (cm²)	G (kg/m)	I (cm⁴)	W (cm³)	i (cm)
NPS 1/2" SCH 40	21.3	2.77	1.62	1.27	0.71	0.66	0.662
NPS 1/2" SCH 80	21.3	3.73	2.09	1.64	0.83	0.78	0.635
NPS 3/4" SCH 40	26.7	2.87	2.2	1.69	1.55	1.16	0.849
NPS 3/4" SCH 80	26.7	3.91	2.88	2.27	1.87	1.4	0.818
NPS 1" SCH 40	33.4	3.38	3.21	2.5	3.64	2.18	1.068
NPS 1" SCH 80	33.4	4.55	4.14	3.24	4.4	2.63	1.033
NPS 1.5" SCH 40	48.3	3.68	5.24	4.05	12.93	5.35	1.583
NPS 1.5" SCH 80	48.3	5.08	7.07	5.41	16.33	6.76	1.539
NPS 2" SCH 40	60.3	3.91	6.92	5.44	27.66	9.18	1.998
NPS 2" SCH 80	60.3	5.54	9.56	7.48	36.09	11.97	1.946
NPS 2" SCH 160	60.3	8.74	14.3	11.1	48.4	16.05	1.849
NPS 3" SCH 40	88.9	5.49	14.3	11.3	125.65	28.27	2.955
NPS 3" SCH 80	88.9	7.62	19.4	15.3	162.09	36.47	2.886
NPS 3" SCH 160	88.9	11.1	27.1	21.3	209.45	47.12	2.779
NPS 4" SCH 40	114.3	6.02	20.5	16.1	301.05	52.68	3.834
NPS 4" SCH 80	114.3	8.56	28.4	22.3	400.03	70	3.751
NPS 4" SCH 160	114.3	13.5	42.6	33.5	552.71	96.71	3.596
NPS 6" SCH 40	168.3	7.11	35.9	28.2	1171.62	139.23	5.704
NPS 6" SCH 80	168.3	10.97	54.2	42.6	1685.81	200.33	5.576
NPS 6" SCH 160	168.3	18.26	86.1	67.6	2457.92	292.09	5.344
NPS 8" SCH 20	219.1	6.35	42.5	33.3	2403.42	219.39	7.525
NPS 8" SCH 40	219.1	8.18	54.2	42.6	3018.69	275.55	7.463
NPS 8" SCH 80	219.1	12.7	81.9	64.3	4401.84	401.81	7.311
NPS 8" SCH 160	219.1	23.01	140	110	6906.88	630.48	6.98
NPS 10" SCH 20	273.1	6.35	53.3	41.8	4735.8	346.82	9.434
NPS 10" SCH 40	273.1	9.27	77	60.5	6693.42	490.18	9.334
NPS 10" SCH 80	273.1	15.09	122	95.7	10212.73	747.91	9.138
NPS 10" SCH 160	273.1	28.58	216	170	16632.53	1218.05	8.704
NPS 12" SCH 20	323.9	6.35	63.3	49.7	7988.1	493.24	11.229
NPS 12" SCH 40	323.9	10.31	102	79.9	12498.97	771.78	11.093
NPS 12" SCH 80	323.9	17.48	167	131	19813.61	1223.44	10.851
NPS 12" SCH 160	323.9	33.32	299	234	32526.34	2008.42	10.341
NPS 14" SCH 10	355.6	6.35	69.6	54.6	10626.41	597.66	12.35
NPS 14" SCH 20	355.6	7.92	86.6	68	13078.25	735.56	12.296
NPS 14" SCH 40	355.6	11.13	121	94.9	17883.91	1005.84	12.185
NPS 14" SCH 80	355.6	19.05	201	158	28608.36	1609.02	11.918
NPS 16" SCH 10	406.4	6.35	79.6	62.5	15969.3	785.89	14.146
NPS 16" SCH 20	406.4	7.92	99.2	77.9	19686.85	968.84	14.091
NPS 16" SCH 40	406.4	12.7	157	123	30465.73	1499.3	13.927
NPS 16" SCH 80	406.4	21.44	258	203	48181.08	2371.12	13.631
NPS 18" SCH 10	457.2	6.35	89.8	70.5	22856.83	999.86	15.942
NPS 18" SCH 20	457.2	7.92	112	87.9	28214.43	1234.23	15.887
NPS 18" SCH 40	457.2	14.27	198	155	48746.08	2132.37	15.668
NPS 20" SCH 10	508	6.35	99.8	78.4	31485.14	1239.57	17.737
NPS 20" SCH 20	508	9.53	149	117	46369.09	1825.55	17.627
NPS 20" SCH 40	508	15.09	233	183	71032.79	2796.57	17.435
NPS 20" SCH 80	508	20.62	315	247	93913.57	3697.38	17.247
NPS 24" SCH 10	609.6	6.35	120	94.3	54748.69	1796.22	21.329
NPS 24" SCH 20	609.6	9.53	179	141	80885.01	2653.71	21.218
NPS 24" SCH 40	609.6	17.48	325	255	142629.32	4679.44	20.944
NPS 24" SCH 80	609.6	24.61	453	355	193813.83	6358.72	20.701
NPS 30" SCH 10	762	7.92	187	147	133378.32	3500.74	26.662
NPS 30" SCH 20	762	12.7	298	234	209872.51	5508.46	26.496
NPS 30" SCH 40	762	19.05	445	349	306986.35	8057.38	26.276
NPS 36" SCH 10	914.4	9.53	270	212	277306.17	6065.31	31.994
NPS 36" SCH 20	914.4	12.7	359	282	365709.26	7998.89	31.883
NPS 36" SCH 40	914.4	19.05	536	420	537192.5	11749.62	31.663