Ductile Iron Pipe Dimensions in Europe

European ductile iron pipe industry follows ISO 2531-Ductile iron pipes, fittings, accessories and their joints for water applications. Accordingly, the dimensions of ductile iron pipes in Europe are governed by ISO 2531. Typical Dimensions are provided below:

Pipe Size (DN)	Outside Diameter	Wall thickness			Outside Diameter	Wall thickness
	inches	inches			mm	mm
		Class 40	K9	K10		Class 40	K9	K10
40	2.205	0.189	0.236	0.236	56	4.8	6	6
50	2.598	0.189	0.236	0.236	66	4.8	6	6
60	3.031	0.189	0.236	0.236	77	4.8	6	6
65	3.228	0.189	0.236	0.236	82	4.8	6	6
80	3.858	0.189	0.236	0.236	98	4.8	6	6
100	4.646	0.189	0.236	0.236	118	4.8	6	6
125	5.669	0.189	0.236	0.236	144	4.8	6	6
150	6.693	0.197	0.236	0.256	170	5	6	6.5
200	8.74	0.213	0.248	0.276	222	5.4	6.3	7
250	10.787	0.228	0.268	0.295	274	5.8	6.8	7.5
300	12.835	0.244	0.283	0.315	326	6.2	7.2	8
350	14.882	0.276	0.303	0.335	378	7	7.7	8.5
400	16.89	0.307	0.319	0.354	429	7.8	8.1	9
450	18.898	–	0.339	0.374	480	–	8.6	9.5
500	20.945	–	0.354	0.394	532	–	9	10
600	25	–	0.39	0.437	635	–	9.9	11.1
700	29.055	–	0.429	0.472	738	–	10.9	12
800	33.15	–	0.461	0.512	842	–	11.7	13
900	37.205	–	0.508	0.555	945	–	12.9	14.1
1000	41.26	–	0.531	0.591	1,048	–	13.5	15
1100	45.354	–	0.567	0.63	1,152	–	14.4	16
1200	49.409	–	0.602	0.669	1,255	–	15.3	17
1400	57.559	–	0.673	0.748	1,462	–	17.1	19
1500	61.614	–	0.709	0.787	1,565	–	18	20
1600	65.669	–	0.744	2.008	1,668	–	18.9	51
1800	73.819	–	0.815	0.906	1,875	–	20.7	23
2000	81.969	–	0.886	0.984	2,082	–	22.5	25

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