Standards guide · Boiler tubes

Boiler tubes: dimensions and dimensional drawing to EN 10216-2

All dimensions of boiler tubes to EN 10216-2 (formerly DIN 17175) in one table, the dimensional drawing of your size above it – available from stock or to order. Seamless tubes for pressure purposes at elevated temperatures are governed by EN 10216-2. This page carries our dimension overview for them: for every dimension the weight per metre and the two limit deviations that apply to it – and the way there through the dimensional drawing.

Standard: DIN EN 10216-2:2025-02
Manufacturing process: seamless, hot finished
Outside diameter: 13.5–610 mm
Wall thicknesses: 1.8–28 mm

Dimensional drawing

Dimensional drawing: outside diameter and wall thickness

The dimensional drawing – also called dimension sheet, outline drawing or dimension sketch – shows every dimension and the tolerances for your size.

How it works: Choose 114.3 mm in the field “Outside diameter” and 3.6 mm in the field “Wall thickness”. The dimensional drawing immediately shows every dimension of boiler tubes with tolerances, the table below all sizes. “Print this size as PDF” takes the drawing with you.

Example 114.3 × 3.6 mm: weight 9.83 kg/m, limit deviations outside diameter ±1.14 mm and wall thickness ±0.450 mm.

Direct link to this size: https://www.zickwolff.de/wissen/en/tubes-en-10216-2/?d=114.3&t=3.6

Select the outside diameter and the wall thickness – the drawing shows exactly this dimension, dimensioned, with the calculated inside diameter. Below it are all wall thicknesses that EN 10216-2 lists for this diameter. The preset is ⌀ 114.3 mm, a medium size of the first diameter series. The tables for the dimensions covered here are further down.

Outside diameter

Wall thickness

EN 10216-2 covers the greyed-out sizes. Our dimension overview does not show them at present.

Press systems: Viega Megapress is approved for steel pipe to EN 10220 with EN 10216-1 or EN 10217-1 and for EN 10255. For P235GH to EN 10216-2, please ask us – we will clarify it with the manufacturer.

Wall thicknesses for the selected outside diameter.
Twall thickness in mm	IDinside diameter in mm, calculated by us	Weightweight per metre in kg/m	per 6 mweight of a 6 m length in kg, calculated by us	Water contentlitres per metre, calculated by us	Cross-sectionsteel cross-sectional area in cm², calculated by us	Surfaceoutside surface area in m² per metre, calculated by us	Limit deviation ⌀permissible deviation of the outside diameter in mm	Limit deviation Tpermissible deviation of the wall thickness in mm

Without JavaScript this selection stays empty – the overview in the tables below is independent of it.

Where it is measured – at the welding end

Measured at the pipe ends – D and T at the end, T as the full wall, not at the root face of an ordered bevel (option 10) – the standard’s figure shows only D, angle and root face, not T. Plain square-cut ends are the default.

Wall section at the pipe end with bevel – the bevel only on order, otherwise a square cut. Not to scale. Image: Zickwolff

EN 10216-2 measures the outside diameter at the pipe ends and checks the wall thickness there too, at both ends (clause 11.9). Measuring the wall outside the end region is a separate option (option 15) and otherwise not part of the inspection. Plain square-cut ends are the default. A bevel is option 10 (clause 8.6): 30° +5/−0 with a root face of 1.6 ± 0.8 mm, the same preparation as for fittings. If it was ordered, T is the full wall – not the root face (the standard’s figure shows only D, angle and root face, it does not enter T there). The tolerances of the standard apply to these end measurements – a slightly thinner wall in the middle of the pipe is not a defect unless option 15 was agreed.

Typical measuring error: Measuring the wall in the middle of the pipe and comparing it with the end tolerance – the standard inspects the ends unless option 15 was ordered.

Rule of thumb: Pipes are checked at the ends – the middle only on request.

Dimension table

Zickwolff dimension table (standard reference EN 10216-2)

One row per dimension, and every row carries everything that belongs to it: wall thickness, weight per metre and both limit deviations. Ø series is the diameter series of EN 10220 – it belongs to the outside diameter, not to the wall thickness.

Five columns are calculated by us, the standard does not list them: the inside diameter as D − 2 × T, the water content as the clear cross-sectional area times one metre, the steel cross-section as the annular area, the weight per 6 m as weight per metre times 6 and the surface as the outer circumference times one metre. All are nominal values without a tolerance of their own – how far they may deviate in a given case follows from the limit deviations for outside diameter and wall thickness.
Standard reference for the limit deviations: EN 10216-2, Table 7 of the standard. The column per 6 m is a calculation aid and not a commitment on the delivery length; which lengths are customary is stated under Lengths.

¹ This dimension lies outside the preferred dimensions of EN 10220: the standard grades outside diameters and wall thicknesses, and this combination is not part of that grading. It is listed here nevertheless, because it exists. A dash in the Ø series column means that the outside diameter itself is not in the series of EN 10220 either.

Doutside diameter in mm	⌀ seriesdiameter series to EN 10220	Twall thickness in mm	IDinside diameter in mm, calculated by us	Weightweight per metre in kg/m	per 6 mweight of a 6 m length in kg, calculated by us	Water contentlitres per metre, calculated by us	Cross-sectionsteel cross-sectional area in cm², calculated by us	Surfaceoutside surface area in m² per metre, calculated by us	Limit deviation ⌀permissible deviation of the outside diameter in mm	Limit deviation Tpermissible deviation of the wall thickness in mm
13.5	1	2.6	8.3	0.699	4.19	0.054	0.890	0.042	±0.500	±0.400
13.5	1	2.9	7.7	0.758	4.55	0.047	0.966	0.042	±0.500	±0.400
17.2	1	1.8	13.6	0.684	4.10	0.145	0.871	0.054	±0.500	±0.400
17.2	1	2.9	11.4	1.02	6.12	0.102	1.303	0.054	±0.500	±0.400

Show full table · more than 170 rows

Outside diameters from 13.5 to 610 mm with the associated wall thicknesses; linear dimensions in millimetres, weight in kg/m, water content in l/m.
Doutside diameter in mm	⌀ seriesdiameter series to EN 10220	Twall thickness in mm	IDinside diameter in mm, calculated by us	Weightweight per metre in kg/m	per 6 mweight of a 6 m length in kg, calculated by us	Water contentlitres per metre, calculated by us	Cross-sectionsteel cross-sectional area in cm², calculated by us	Surfaceoutside surface area in m² per metre, calculated by us	Limit deviation ⌀permissible deviation of the outside diameter in mm	Limit deviation Tpermissible deviation of the wall thickness in mm
13.5	1	2.6	8.3	0.699	4.19	0.054	0.890	0.042	±0.500	±0.400
13.5	1	2.9	7.7	0.758	4.55	0.047	0.966	0.042	±0.500	±0.400
17.2	1	1.8	13.6	0.684	4.10	0.145	0.871	0.054	±0.500	±0.400
17.2	1	2.9	11.4	1.02	6.12	0.102	1.303	0.054	±0.500	±0.400
17.2	1	3.2	10.8	1.10	6.60	0.092	1.407	0.054	±0.500	±0.400
21.3	1	2	17.3	0.952	5.71	0.235	1.213	0.067	±0.500	±0.400
21.3	1	2.3	16.7	1.08	6.48	0.219	1.373	0.067	±0.500	±0.400
21.3	1	2.6	16.1	1.20	7.20	0.204	1.527	0.067	±0.500	±0.400
21.3	1	2.9	15.5	1.32	7.92	0.189	1.676	0.067	±0.500	±0.400
21.3	1	3.2	14.9	1.43	8.58	0.174	1.820	0.067	±0.500	±0.400
21.3	1	3.6	14.1	1.57	9.42	0.156	2.002	0.067	±0.500	±0.450
21.3	1	4	13.3	1.71	10.3	0.139	2.174	0.067	±0.500	±0.500
25	2	2	21.0	1.13	6.78	0.346	1.445	0.079	±0.500	±0.400
25	2	4.5	16.0	2.28	13.7	0.201	2.898	0.079	±0.500	±0.563
26.9	1	2.3	22.3	1.40	8.40	0.391	1.778	0.085	±0.500	±0.400
26.9	1	2.6	21.7	1.56	9.36	0.370	1.985	0.085	±0.500	±0.400
26.9	1	2.9	21.1	1.72	10.3	0.350	2.187	0.085	±0.500	±0.400
26.9	1	3.2	20.5	1.87	11.2	0.330	2.383	0.085	±0.500	±0.400
26.9	1	3.6	19.7	2.07	12.4	0.305	2.635	0.085	±0.500	±0.450
26.9	1	4	18.9	2.26	13.6	0.281	2.878	0.085	±0.500	±0.500
26.9	1	5	16.9	2.70	16.2	0.224	3.440	0.085	±0.500	±0.625
26.9	1	5.6	15.7	2.94	17.6	0.194	3.747	0.085	±0.500	±0.700
30	3	2.6	24.8	1.76	10.6	0.483	2.238	0.094	±0.500	±0.400
30	3	5	20.0	3.08	18.5	0.314	3.927	0.094	±0.500	±0.625
31.8	2	2.6	26.6	1.87	11.2	0.556	2.385	0.100	±0.500	±0.400
33.7	1	2.6	28.5	1.99	11.9	0.638	2.540	0.106	±0.500	±0.400
33.7	1	3.2	27.3	2.41	14.5	0.585	3.066	0.106	±0.500	±0.400
33.7	1	3.6	26.5	2.67	16.0	0.552	3.404	0.106	±0.500	±0.450
33.7	1	4	25.7	2.93	17.6	0.519	3.732	0.106	±0.500	±0.500
33.7	1	4.5	24.7	3.24	19.4	0.479	4.128	0.106	±0.500	±0.563
33.7	1	5	23.7	3.54	21.2	0.441	4.508	0.106	±0.500	±0.625
33.7	1	5.6	22.5	3.88	23.3	0.398	4.944	0.106	±0.500	±0.700
33.7	1	6.3	21.1	4.26	25.6	0.350	5.423	0.106	±0.500	±0.788
33.7	1	7.1	19.5	4.66	28.0	0.299	5.933	0.106	±0.500	±0.888
33.7	1	8	17.7	5.07	30.4	0.246	6.459	0.106	±0.500	±1.00
33.7	1	8.8	16.1	5.40	32.4	0.204	6.884	0.106	±0.500	±1.10
38	2	2.6	32.8	2.27	13.6	0.845	2.892	0.119	±0.500	±0.400
38	2	3.2	31.6	2.75	16.5	0.784	3.498	0.119	±0.500	±0.400
38	2	4	30.0	3.35	20.1	0.707	4.273	0.119	±0.500	±0.500
38	2	5	28.0	4.07	24.4	0.616	5.184	0.119	±0.500	±0.625
38	2	5.6	26.8	4.47	26.8	0.564	5.700	0.119	±0.500	±0.700
42.4	1	2.6	37.2	2.55	15.3	1.09	3.251	0.133	±0.500	±0.400
42.4	1	3.2	36.0	3.09	18.5	1.02	3.941	0.133	±0.500	±0.400
42.4	1	3.6	35.2	3.44	20.6	0.973	4.388	0.133	±0.500	±0.450
42.4	1	4	34.4	3.79	22.7	0.929	4.825	0.133	±0.500	±0.500
42.4	1	4.5	33.4	4.21	25.3	0.876	5.358	0.133	±0.500	±0.563
42.4	1	5	32.4	4.61	27.7	0.824	5.875	0.133	±0.500	±0.625
42.4	1	6.3	29.8	5.61	33.7	0.697	7.145	0.133	±0.500	±0.788
42.4	1	10	22.4	7.99	47.9	0.394	10.18	0.133	±0.500	±1.25
44.5	3	2.6	39.3	2.69	16.1	1.21	3.422	0.140	±0.500	±0.400
44.5	3	3.2	38.1	3.26	19.6	1.14	4.152	0.140	±0.500	±0.400
44.5	3	5	34.5	4.87	29.2	0.935	6.205	0.140	±0.500	±0.625
48.3	1	2.6	43.1	2.93	17.6	1.46	3.733	0.152	±0.500	±0.400
48.3	1	3.2	41.9	3.56	21.4	1.38	4.534	0.152	±0.500	±0.400
48.3	1	3.6	41.1	3.97	23.8	1.33	5.055	0.152	±0.500	±0.450
48.3	1	4	40.3	4.37	26.2	1.28	5.567	0.152	±0.500	±0.500
48.3	1	5	38.3	5.34	32.0	1.15	6.802	0.152	±0.500	±0.625
48.3	1	8	32.3	7.95	47.7	0.819	10.13	0.152	±0.500	±1.00
51	2	2.6	45.8	3.10	18.6	1.65	3.953	0.160	±0.510	±0.400
51	2	3.2	44.6	3.77	22.6	1.56	4.805	0.160	±0.510	±0.400
51	2	4	43.0	4.64	27.8	1.45	5.906	0.160	±0.510	±0.500
51	2	4.5	42.0	5.16	31.0	1.39	6.574	0.160	±0.510	±0.563
51	2	7.1	36.8	7.69	46.1	1.06	9.792	0.160	±0.510	±0.888
54	3	2.6	48.8	3.30	19.8	1.87	4.198	0.170	±0.540	±0.400
57	2	2.9	51.2	3.87	23.2	2.06	4.929	0.179	±0.570	±0.400
57	2	3.6	49.8	4.74	28.4	1.95	6.039	0.179	±0.570	±0.450
57	2	5	47.0	6.41	38.5	1.73	8.168	0.179	±0.570	±0.625
57	2	6.3	44.4	7.88	47.3	1.55	10.03	0.179	±0.570	±0.788
60.3	1	2.9	54.5	4.11	24.7	2.33	5.229	0.189	±0.603	±0.400
60.3	1	3.2	53.9	4.51	27.1	2.28	5.740	0.189	±0.603	±0.400
60.3	1	3.6	53.1	5.03	30.2	2.21	6.413	0.189	±0.603	±0.450
60.3	1	4	52.3	5.55	33.3	2.15	7.075	0.189	±0.603	±0.500
60.3	1	4.5	51.3	6.19	37.1	2.07	7.889	0.189	±0.603	±0.563
60.3	1	5	50.3	6.82	40.9	1.99	8.687	0.189	±0.603	±0.625
60.3	1	5.6	49.1	7.55	45.3	1.89	9.623	0.189	±0.603	±0.700
60.3	1	6.3	47.7	8.39	50.3	1.79	10.69	0.189	±0.603	±0.788
60.3	1	8	44.3	10.3	61.8	1.54	13.14	0.189	±0.603	±1.00
60.3	1	12.5	35.3	14.7	88.2	0.979	18.77	0.189	±0.603	±1.56
63.5	2	2.9	57.7	4.33	26.0	2.61	5.521	0.199	±0.635	±0.400
63.5	2	4.5	54.5	6.55	39.3	2.33	8.341	0.199	±0.635	±0.563
70	2	2.9	64.2	4.80	28.8	3.24	6.113	0.220	±0.700	±0.400
70	2	3.6	62.8	5.90	35.4	3.10	7.510	0.220	±0.700	±0.450
70	2	8	54.0	12.2	73.2	2.29	15.58	0.220	±0.700	±1.00
70	2	8.8	52.4	13.3	79.8	2.16	16.92	0.220	±0.700	±1.10
76.1	1	2.9	70.3	5.24	31.4	3.88	6.669	0.239	±0.761	±0.400
76.1	1	3.2	69.7	5.75	34.5	3.82	7.329	0.239	±0.761	±0.400
76.1	1	3.6	68.9	6.44	38.6	3.73	8.200	0.239	±0.761	±0.450
76.1	1	4	68.1	7.11	42.7	3.64	9.060	0.239	±0.761	±0.500
76.1	1	4.5	67.1	7.95	47.7	3.54	10.12	0.239	±0.761	±0.563
76.1	1	5	66.1	8.77	52.6	3.43	11.17	0.239	±0.761	±0.625
76.1	1	5.6	64.9	9.74	58.4	3.31	12.40	0.239	±0.761	±0.700
76.1	1	6.3	63.5	10.8	64.8	3.17	13.81	0.239	±0.761	±0.788
76.1	1	7.1	61.9	12.1	72.6	3.01	15.39	0.239	±0.761	±0.888
76.1	1	8	60.1	13.4	80.4	2.84	17.12	0.239	±0.761	±1.00
76.1	1	10	56.1	16.3	97.8	2.47	20.77	0.239	±0.761	±1.25
76.1	1	12.5	51.1	19.6	117.6	2.05	24.98	0.239	±0.761	±1.56
82.5	3	3.2	76.1	6.26	37.6	4.55	7.972	0.259	±0.825	±0.400
82.5	3	4.5	73.5	8.66	52.0	4.24	11.03	0.259	±0.825	±0.563
88.9	1	3.2	82.5	6.76	40.6	5.35	8.616	0.279	±0.889	±0.400
88.9	1	3.6	81.7	7.57	45.4	5.24	9.647	0.279	±0.889	±0.450
88.9	1	4	80.9	8.38	50.3	5.14	10.67	0.279	±0.889	±0.500
88.9	1	4.5	79.9	9.37	56.2	5.01	11.93	0.279	±0.889	±0.563
88.9	1	5	78.9	10.3	61.8	4.89	13.18	0.279	±0.889	±0.625
88.9	1	5.6	77.7	11.5	69.0	4.74	14.65	0.279	±0.889	±0.700
88.9	1	7.1	74.7	14.3	85.8	4.38	18.25	0.279	±0.889	±0.888
88.9	1	8	72.9	16.0	96.0	4.17	20.33	0.279	±0.889	±1.00
88.9	1	10	68.9	19.5	117.0	3.73	24.79	0.279	±0.889	±1.25
88.9	1	11	66.9	21.1	126.6	3.52	26.92	0.279	±0.889	±1.38
88.9	1	12.5	63.9	23.6	141.6	3.21	30.00	0.279	±0.889	±1.56
101.6	2	3.6	94.4	8.70	52.2	7.00	11.08	0.319	±1.02	±0.450
101.6	2	6.3	89.0	14.8	88.8	6.22	18.86	0.319	±1.02	±0.788
101.6	2	7.1	87.4	16.5	99.0	6.00	21.08	0.319	±1.02	±0.888
101.6	2	11	79.6	24.6	147.6	4.98	31.31	0.319	±1.02	±1.38
108	3	3.6	100.8	9.27	55.6	7.98	11.81	0.339	±1.08	±0.450
108	3	8	92.0	19.7	118.2	6.65	25.13	0.339	±1.08	±1.00
114.3	1	3.6	107.1	9.83	59.0	9.01	12.52	0.359	±1.14	±0.450
114.3	1	4.5	105.3	12.2	73.2	8.71	15.52	0.359	±1.14	±0.563
114.3	1	5.6	103.1	15.0	90.0	8.35	19.12	0.359	±1.14	±0.700
114.3	1	6.3	101.7	16.8	100.8	8.12	21.38	0.359	±1.14	±0.788
114.3	1	8	98.3	21.0	126.0	7.59	26.72	0.359	±1.14	±1.00
114.3	1	8.8	96.7	22.9	137.4	7.34	29.17	0.359	±1.14	±1.10
114.3	1	10	94.3	25.7	154.2	6.98	32.77	0.359	±1.14	±1.25
114.3	1	12.5	89.3	31.4	188.4	6.26	39.98	0.359	±1.14	±1.56
114.3	1	14.2	85.9	35.1	210.6	5.80	44.66	0.359	±1.14	±1.78
114.3	1	17.5	79.3	41.8	250.8	4.94	53.22	0.359	±1.14	±2.19
127	2	4	119.0	12.1	72.6	11.1	15.46	0.399	±1.27	±0.500
133	2	4	125.0	12.7	76.2	12.3	16.21	0.418	±1.33	±0.500
139.7	1	4	131.7	13.4	80.4	13.6	17.05	0.439	±1.40	±0.500
139.7	1	6.3	127.1	20.7	124.2	12.7	26.40	0.439	±1.40	±0.788
139.7	1	7.1	125.5	23.2	139.2	12.4	29.58	0.439	±1.40	±0.888
139.7	1	8	123.7	26.0	156.0	12.0	33.10	0.439	±1.40	±1.00
139.7	1	10	119.7	32.0	192.0	11.3	40.75	0.439	±1.40	±1.25
139.7	1	12.5	114.7	39.2	235.2	10.3	49.95	0.439	±1.40	±1.56
152.4	3	4.5	143.4	16.4	98.4	16.2	20.91	0.479	±1.52	±0.563
152.4	3	12.5	127.4	43.1	258.6	12.7	54.94	0.479	±1.52	±1.56
159	3	4.5	150.0	17.1	102.6	17.7	21.84	0.500	±1.59	±0.563
159	3	5.6	147.8	21.2	127.2	17.2	26.99	0.500	±1.59	±0.700
159	3	6.3	146.4	23.7	142.2	16.8	30.22	0.500	±1.59	±0.788
168.3	1	4.5	159.3	18.2	109.2	19.9	23.16	0.529	±1.68	±0.563
168.3	1	5.6	157.1	22.5	135.0	19.4	28.62	0.529	±1.68	±0.700
168.3	1	6.3	155.7	25.2	151.2	19.0	32.06	0.529	±1.68	±0.788
168.3	1	7.1	154.1	28.2	169.2	18.7	35.96	0.529	±1.68	±0.888
168.3	1	8	152.3	31.6	189.6	18.2	40.29	0.529	±1.68	±1.00
168.3	1	10	148.3	39.0	234.0	17.3	49.73	0.529	±1.68	±1.25
168.3	1	11	146.3	42.7	256.2	16.8	54.36	0.529	±1.68	±1.38
168.3	1	12.5	143.3	48.0	288.0	16.1	61.18	0.529	±1.68	±1.56
168.3	1	17.5	133.3	65.1	390.6	14.0	82.91	0.529	±1.68	±2.19
168.3	1	22.2	123.9	80.0	480.0	12.1	101.90	0.529	±1.68	±2.78
177.8	3	5	167.8	21.3	127.8	22.1	27.14	0.559	±1.78	±0.625
193.7	3	5.6	182.5	26.0	156.0	26.2	33.09	0.609	±1.94	±0.700
193.7	3	6.3	181.1	29.1	174.6	25.8	37.09	0.609	±1.94	±0.788
193.7	3	7.1	179.5	32.7	196.2	25.3	41.62	0.609	±1.94	±0.888
193.7	3	8.8	176.1	40.1	240.6	24.4	51.12	0.609	±1.94	±1.10
193.7	3	28	137.7	114	684.0	14.9	145.76	0.609	±1.94	±3.50
219.1	1	6.3	206.5	33.1	198.6	33.5	42.12	0.688	±2.19	±0.788
219.1	1	7.1	204.9	37.1	222.6	33.0	47.29	0.688	±2.19	±0.888
219.1	1	8	203.1	41.6	249.6	32.4	53.06	0.688	±2.19	±1.00
219.1	1	8.8	201.5	45.6	273.6	31.9	58.14	0.688	±2.19	±1.10
219.1	1	10	199.1	51.6	309.6	31.1	65.69	0.688	±2.19	±1.25
219.1	1	16	187.1	80.1	480.6	27.5	102.09	0.688	±2.19	±2.00
219.1	1	17.5	184.1	87.0	522.0	26.6	110.84	0.688	±2.19	±2.19
244.5	3	6.3	231.9	37.0	222.0	42.2	47.14	0.768	±2.45	±0.945
244.5	3	8	228.5	46.7	280.2	41.0	59.44	0.768	±2.45	±1.20
244.5	3	10	224.5	57.8	346.8	39.6	73.67	0.768	±2.45	±1.50
244.5	3	25	194.5	135	810.0	29.7	172.39	0.768	±2.45	±2.50
273	1	6.3	260.4	41.4	248.4	53.3	52.79	0.858	±2.73	±1.26
273	1	8	257.0	52.3	313.8	51.9	66.60	0.858	±2.73	±1.20
273	1	10	253.0	64.9	389.4	50.3	82.62	0.858	±2.73	±1.50
273	1	12.5	248.0	80.3	481.8	48.3	102.30	0.858	±2.73	±1.88
298.5	–	7.1¹	284.3	51.0	306.0	63.5	65.00	0.938	±2.98	±1.42 (20 % v, T, Tab, 7)
323.9	1	7.1	309.7	55.5	333.0	75.3	70.66	1.018	±3.24	±1.42
323.9	1	8.8	306.3	68.4	410.4	73.7	87.11	1.018	±3.24	±1.32
355.6	1	8	339.6	68.6	411.6	90.6	87.36	1.117	±3.56	±1.60
406.4	1	8.8	388.8	86.3	517.8	118.7	109.92	1.277	±4.06	±1.76
457	1	10	437.0	110	660.0	150.0	140.43	1.436	±4.57	±2.00
508	1	11	486.0	135	810.0	185.5	171.75	1.596	±5.08	±2.20
610	1	12.5	585.0	184	1104.0	268.8	234.64	1.916	±6.10	±2.50

The standard names dimensions. What is listed here, we carry – from stock or to order; how quickly a size is available we clarify on request.

What has changed since the earlier edition

For the boiler tube, the comparison covers the editions from DIN EN 10216-2:2020-04. Not yet recorded: editions 2002 to 2014 (2014-03 available in-house, deliberately not applied retroactively), DIN 17175.

DIN EN 10216-2:2020-04 → DIN EN 10216-2:2025-02

value
The standard has added new creep-resisting steel grades.

Examples: 1.7392 (X10CrSiCuMoNi9-2-1) · 1.4915 (X12CrCoWVNb12-2-2) · 1.4927 (X10CrMoVNb11)

editions 2020-04 and 2025-02 · National foreword, Table 1, Annex B
unchanged
The preferred dimension matrix (Table 6) is unchanged between the editions - the same 59 diameters, the same series assignment, the same 951 permissible combinations - although the 2025 national foreword mentions corrections in Table 6.

editions 2020-04 and 2025-02 · National foreword and Table 6
value
The creep strength values of Table A.1 have been updated by corrections and new ECCC data.

Examples: 1.4903 (X10CrMoVNb9-1) · 1.4901 (X10CrWMoVNb9-2)

editions 2020-04 and 2025-02 · National foreword and Annex B
designation
In clause 11.8.1 the unit has been changed from bar to MPa.

editions 2020-04 and 2025-02 · Annex B

These entries say what the standard has changed. They say nothing about material, pressure rating, scope of testing or the condition of an installed part — and nothing about whether an existing part can continue to be used. That assessment remains with the specific plant.

Lengths

Lengths: what the standard leaves open and what the market supplies

EN 10216-2 does not specify a length. Tubes are supplied in random lengths, whose range is part of the order and is agreed there. Exact lengths with their own limit deviations are possible, but a design that has to be agreed expressly – not the normal case. That is why the drawing on this page carries no length dimension and shows the tube broken off on the right: the length is not a property of the dimension but a matter of the order.

Customary on the market are 5 to 7 m, also in double length. That is the standard length that stockholders and mills supply for tubes of this manufacturing process – seamless, hot finished, a figure taken from stock programmes, not from the standard. Whoever needs a specific length states it in the inquiry; whoever plans a quantity calculates with it.

The column per 6 m in the tables on this page calculates with 6 m, because that is the round figure within this range. It is a calculation aid and not a commitment: for a different length take the Weight column (kg per m) and multiply yourself.

How the figures are derived

How weight and limit deviations come about

The weight per metre is a calculation, not a table entry: outside diameter and wall thickness give the cross-sectional area of the tube, times the density of steel of 7.85 kg/dm³. We calculate it to EN 10220 for every dimension in this overview – which is why every row shows a figure and nowhere a dash.

A limit deviation is not a property of the row but a figure that refers to the nominal dimension. For the outside diameter that is ± 1 % of the nominal dimension, at least ± 0.5 mm – a ratio that has applied in piping for a long time and appears in every stock programme. For the wall thickness that is ± 12.5 % of the nominal dimension, at least ± 0.4 mm. We calculate it for every dimension in this overview, so that the row shows the figure and not a percentage that one would still have to apply oneself.

Not throughout: for the wall thickness the ratio comes out differently for some of the dimensions. There too the row shows the figure that applies to exactly this dimension. For individual dimensions the standard departs from this for the outside diameter; the row then states the value that applies to them.

It is recalculated every time this page is rebuilt, row by row. If one does not add up, the page is not built.

Workmanship

How to measure correctly

A tube is identified by two measurements: outside diameter D and wall thickness T. Measure D with a calliper in two directions at right angles – the difference is the out-of-roundness – and T at the tube end. The inside diameter is not measured but calculated: D minus twice T.

Workmanship and testing: what is not a dimension

Not everything that has to be right about a tube is in the dimension table. How straight it has to be, how round the cross-section has to be and how unevenly the wall may be distributed around the circumference – that too is part of the workmanship, and at incoming inspection it helps decide whether a delivery is accepted. Added to this is what can be seen on the delivery: the surface, the ends, the marking and the protection on the way to site.

What is measured on the tube

Straightness – all: at most 0.0015 L per tube length, related to one metre at most 3 mm
Out-of-roundness – all: no separate limit – included in the limit deviations of the outside diameter
Eccentricity – all: no separate limit – included in the limit deviations of the wall thickness

Delivery and marking

Surface condition – all: free from surface defects that can be detected by visual inspection · surface in the condition typical of the manufacturing process and heat treatment · imperfections deeper than 5 % of the wall thickness or 3 mm (whichever is smaller) are to be removed by grinding or machining, this does not apply up to 0.3 mm depth · afterwards the minimum wall thickness must be maintained, otherwise the tube is deemed defective
Tube ends – all: cut square to the tube axis and free from excessive burrs · bevelling only with option 10: 30° +5/0 with a root face of 1.6 ± 0.8 mm, over 20 mm wall thickness by agreement
Marking – all: durable, at least at one tube end: manufacturer, EN 10216-2 with steel name, test category for non-alloy steels, cast number, mark of the inspection representative, identification number · up to D 51 mm alternatively a label on the bundle or on the packaging · option 17: additional marking
Surface protection – all: without temporary corrosion protection unless option 18 is agreed (temporary protection or permanent coating and/or lining)
The standard supplies the tube without corrosion protection unless otherwise agreed. Surface finishing to customer specification – pickling, priming, painting – is a matter of the order, not of the dimension.

Standard reference for these details: EN 10216-2. What is stated here is the requirement – it is measured on the delivered tube, and where a tolerance class or an option comes into play, it belongs in the order.

In practice

From practice: where ordering goes wrong

Seamless is not the same as welded. EN 10216 governs seamless tubes, EN 10217 welded ones. Both carry the same outside diameters, and a dimension alone therefore does not say which tube is meant. Anyone who orders just “⌀ 114.3 × 3.6” gets whatever the supplier considers obvious.

The wall thickness belongs in the order, the series does not. The diameter series of EN 10220 arranges the outside diameters; it is not a figure you order with. What is ordered is outside diameter × wall thickness, together with material, test category and the inspection document required.

The certificate is decided before the order, not after it. An inspection certificate 3.1 to EN 10204 has to be ordered with the material – for a batch already delivered it cannot be obtained afterwards. What the types mean is explained on our page Inspection documents to EN 10204.

Limits of this page

What this page does not say

No material selection. EN 10216-2 carries several heat-resistant steel grades – from non-alloy P235GH to the chromium-molybdenum steels. Which one suits your case is decided by temperature, medium and design – not by the dimension. The materials overview puts the grades in context.
No design calculation. Diameter and wall thickness do not yield a permissible working pressure. That calculation belongs to plant engineering.
Only this one standard. Seamless tubes for room temperature are covered by EN 10216-1, welded tubes by EN 10217, stainless ones by EN 10216-5 and EN 10217-7. The overview is on the page Steel pipes.

Frequently asked questions

Where do I find the dimensions of a tube 88.9 × 3.2 to EN 10216-2?

The dimension table on this page lists all available sizes to EN 10216-2; the dimensional drawing above it shows the selected size with all dimensions and tolerances and can be printed as a PDF - the data sheet for your size.

Where does the standard measure diameter and wall thickness on a pipe?

At both pipe ends (EN 10216-2, clause 11.9). If a bevel was ordered (option 10), T is the full wall, not the root face. A wall measurement outside the end region is option 15 and has to be ordered.

What does EN 10216-2 govern?

The standard applies to seamless, hot finished tubes of creep-resisting steels for pressure purposes at elevated temperatures. Among other things it lays down the preferred dimensions, the limit deviations and the test conditions.

How much does one metre of tube weigh?

The weight per metre is shown in this overview for every dimension. It is calculated to EN 10220 from outside diameter and wall thickness and applies to steel with a density of 7.85 kg/dm³.

How far may the dimension deviate from the nominal dimension?

For the outside diameter ± 1 % of the nominal dimension, at least ± 0.5 mm. For the wall thickness up to an outside diameter of 219.1 ± 12.5 % of the nominal dimension, at least ± 0.4 mm; above that the standard grades the deviation by the ratio of wall thickness to diameter, between ± 20 % and ± 10 %. The calculated value is shown in every row of the dimension overview.

What does the Ø series mean?

It is the diameter series of EN 10220. That standard arranges the outside diameters in three series; series 1 are the common sizes. The series belongs to the outside diameter, not to the wall thickness.

Boiler tubes by dimension and material – ask our warehouse

Send us the dimension, the material with its test category and the inspection document required. What is in stock we deliver at short notice; everything else we source on request.

Send an inquiry

Your inquiry to Zickwolff

Send us what you have – designation, standard, quantity, date. We will clarify the rest with you.

One item or a question

Send inquiry

Not in stock? We procure it – single items too.

Designation, standard and quantity are enough.

Several items

Send bill of materials

200 items? One parts list is enough – we deliver complete.

Attach it as a file.

Helpful if already known: project and country, date needed, certificates, packaging and language of the packing lists. If anything is missing, we will ask.

It is urgent

Request express

When do you need it? Express delivery, to the site if required.

Tell us by when you need the material – we will tell you what is possible.

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