Nova Trading - Tabels round tubes

Dimentional tolerances for welded and seamless tubes according to EN ISO 1127

Tolerances for outside diameter
Tolerance class	Permissible deviations
D1	± 1,5%, but not less than ± 0,75 mm
D2	± 1,0%, but not less than ± 0,5 mm
D3	± 0,75%, but not less than ± 0,3 mm
D4	± 0,5%, but not less than ± 0,1 mm

Wall thickness torelances
Tolerance class	Permissible deviations
T1	± 15%, but not less than ± 0,6 mm
T2	± 12,5%, but not less than ± 0,4 mm
T3	± 10%, but not less than ± 0,2 mm
T4	± 7,5%, but not less than ± 0,15 mm
T5	± 5%, but not less than ± 0,1 mm

Table of outside diameters
DN	ISO	DIN	METR.	DIN 11850	INCHES	ASTM*
6	10.2				1/8"	10.29
8	13.5				1/4"	13.72
10	17.2	14.0	12		3/8"	17.15
15	21.3	20.0	18		1/2"	21.34
20	26.9	25.0	23		3/4"	26.67
25	33.7	30.0	28	28x1.5	1"	33.40
32	42.4	38.0	35	34x1.5	1 1/4"	42.16
40	48.3	44.5	43	40x1.5	1 1/2"	48.26
50	60.3	57.0	54	52x1.5	2"	60.33
65	76.1	76.1	69	70x2.0	2 1/2"	73.03
80	88.9	88.9	84	85x2.0	3"	88.90
					3 1/2"	101.60
100	114.3	108.0	104	104x2.0	4"	114.30
125	139.7	133.0	129	129x2.0	5"	141.30
150	168.3	159.0	154	154x2.0	6"	168.30
200	219.1	216.0	204	204x2.0	8"	219.10
250	273.0	267.0	254	254x2.0	10"	273.00
300	323.9	318.0	304		12"	323.90
350	355.6	368.0	354		14"	355.60
400	406.4	419.0			16"	406.40
450	457.2	459.0			18"	457.20
500	508.0	521.0			20"	508.00
					22"	558.80
600	609.6	622.0			24"	609.60
					26"	660.40
700	711.2	720.0			28"	711.20
					30"	762.00
800	812.8	820.0			32"	812.80
					34"	863.60
900	914.4	920.0			36"	914.40
1000	1016.0	1020.0			40"	1016.00

*ASTM - American Society For Testing Materials

Dimensions according to AISI*
⌀	outside mm ⌀	Thickness					STD & thickness			STD I & thickness
⌀	outside mm ⌀	5 S	10 S	10	20	30	40S	40	60	80 S	80	100	120	140	160	XXS
1/8"	10.30		1.24				1.73	1.73		2.41	2.41
1/4"	13.71		1.65				2.24	2.24		3.02	3.02
3/8"	17.14		1.65				2.31	2.31		3.20	3.20
1/2"	21.34	1.65	2.11				2.77	2.77		3.73	3.73				4.78	7.47
3/4"	26.67	1.65	2.11				2.87	2.87		3.91	3.91				5.56	7.82
1"	33.40	1.65	2.77				3.38	3.38		4.55	4.55				6.35	9.09
1 1/4"	42.16	1.65	2.77				3.56	3.56		4.85	4.85				6.35	9.70
1 1/2"	48.26	1.65	2.77				3.68	3.68		5.08	5.08				7.14	10.16
2"	60.32	1.65	2.77				3.91	3.91		5.54	5.54				8.74	11.07
2 1/2"	73.02	2.11	3.05				5.16	5.16		7.01	7.01				9.52	14.02
3"	88.90	2.11	3.05				5.49	5.49		7.62	7.62				11.13	15.24
3 1/2"	101.60	2.11	3.05				5.74	5.74		8.08	8.08
4"	114.30	2.11	3.05				6.02	6.02		8.56	8.56		11.13		13.49	17.12
5"	141.30	2.77	3.40				6.55	6.55		9.52	9.52		12.70		15.88	19.05
6"	168.30	2.77	3.40				7.11	7.11		10.97	10.97		14.27		18.26	21.95
8"	219.10	2.77	3.76		6.35	7.04	8.18	8.18	10.31	12.70	12.70	15.09	18.26	20.62	23.01	22.22
10"	273.00	3.40	4.19		6.35	7.80	9.27	9.27	12.70	12.70	15.09	18.26	21.44	25.40	28.58	25.40
12"	323.90	3.96	4.57		6.35	3.38	9.52	10.31	14.27	12.70	17.47	21.44	25.40	28.58	33.34	25.40
14"	355.60	3.96	4.78	6.35	7.92	9.52	9.52	11.13	15.09	12.70	19.05	23.82	27.79	31.75	35.71
16"	406.40	4.19	4.78	6.35	7.92	9.52	9.52	12.70	16.49	12.70	21.44	26.19	30.96	36.52	40.49
18"	457.20	4.19	4.78	6.35	7.92	11.13	9.52	14.27	19.05	12.70	23.82	29.36	34.92	39.69	45.24
20"	508.00	4.78	5.54	6.35	9.52	12.70	9.52	15.09	20.62	12.70	26.19	32.54	38.10	44.45	50.01
22"	558.80	4.78	5.54	6.35	9.52	12.70	9.52		22.22	12.70	28.60	34.92	41.28	47.62	53.98
24"	609.60	5.54	6.35	6.35	9.52	14.27	9.52	17.48	24.61	12.70	30.96	38.86	46.02	52.30	59.54
26"	660.40			7.92	12.70		9.52			12.70
28"	711.20			7.92	12.70	15.88	9.52			12.70
30"	762.00			7.92	12.70	15.88	9.52			12.70
32"	812.80			7.92	12.70	15.88	9.52	17.48		12.70
34"	863.60			7.92	12.70	15.88	9.52	17.48		12.70
36"	914.40			7.92	12.70	15.88	9.52	19.05		12.70

Dimentional tolerances for welded and seamless tubes according to EN ISO 1127

Tolerances for outside diameter

Wall thickness torelances

Table of outside diameters

Dimensions according to AISI*