Kalpana intervest

Electric-welded and seamless steel pipes, black or hot-dip galvanized made according to ASTM A 53/A 53М

Application: steam, water, gas and air conduits.

Steel grade: A, B.

Standard for chemical composition: ASTM A53

Dimensions and mass of pipes

Nominal size	Outside diameter		Wallthickness		Mass of unit of length		BWeight class*	Type of pipes
Nominal size	inch	mm	inch	mm	lb/ft	kg/m	BWeight class*	seamless	welded
1/2	0.840	21,3	0.109	2,77	0.85	1,27	STD		n
3/4	1.050	26,7	0.113	2,87	1.13	1,69	STD		n
1	1.315	33,4	0.133	3,38	1.68	2,50	STD	n	n
1 1/4	1.660	42,2	0.140	3,56	2.27	3,39	STD	n	n
1 1/2	1.900	48,3	0.145	3,68	2.72	4,05	STD	n	n
2	2.375	60,3	0.141	3,58	3.36	5,01	…	n
			0.154	3,91	3.65	5,44	STD	n	n
			0.172	4,37	4.05	6,03	…	n
			0.188	4,78	4.39	6,54	…	n
			0.218	5,54	5.02	7,48	XS	n
2 1/2	2.875	73,0	0.141	3,58	4.12	6,13	…	n
			0.156	3,96	4.53	6,74	…	n
			0.172	4,37	4.97	7,40	…	n
			0.188	4,78	5.40	8,04	…	n
			0.203	5,16	5.79	8,63	STD	n
			0.216	5,49	6.13	9,14	…	n
			0.250	6,35	7.01	10,44	…	n
			0.276	7,01	7.66	11,41	XS	n
			0.375	9,53	10.01	14,92	…	n
3	3.500	88,9	0.125	3,18	4.51	6,72	…		n
			0.141	3,58	5.06	7,53	…	n
			0.156	3,96	5.57	8,29	…	n	n
			0.172	4,37	6.11	9,11	…	n
			0.188	4,78	6.65	9,92	…	n
			0.216	5,49	7.58	11,29	STD	n
			0.250	6,35	8.68	12,93	…	n
			0.281	7,14	9.66	14,40	…	n
			0.300	7,62	10.25	15,27	XS	n
			0.438	11,13	14.32	21,35	…	n
			0.600	15,24	18.58	27,68	XXS	n
3 1/2	4.000	101,6	0.125	3,18	5.17	7,72	…		n
			0.156	3,96	6.40	9,53	…	n	n
			0.172	4,37	7.03	10,48	…	n
			0.188	4,78	7.65	11,41	…	n
			0.226	5,74	9.11	13,57	STD	n
			0.250	6,35	10.01	14,92	…	n
			0.281	7,14	11.16	16,63	…	n
			0.318	8,08	12.50	18,63	XS	n
4	4.500	114,3	0.125	3,18	5.84	8,71	…		n
			0.156	3,96	7.24	10,78	…		n
			0.172	4,37	7.95	11,85	…	n
			0.188	4,78	8.67	12,91	…	n
			0.203	5,16	9.32	13,89	…	n
			0.219	5,56	10.02	14,91	…	n
			0.237	6,02	10.79	16,07	STD	n
			0.250	6,35	11.35	16,90	…	n
			0.281	7,14	12.66	18,87	…	n
			0.312	7,92	13.98	20,78	…	n
5	5.563	141,3	0.258	6,55	14.62	21,77	STD	n
			0.281	7,14	15.85	23,62	…	n
			0.312	7,92	17.50	26,05	…	n
			0.344	8,74	19.17	28,57	…	n
			0.375	9,53	20.78	30,97	XS	n
			0.500	12,70	27.04	40,28	…	n
			0.625	15,88	32.96	49,11	…	n
			0.750	19,05	38.55	57,43	XXS	n
6	6.625	168,3	0.188	4,78	12.92	19,27	…		n
			0.219	5,56	14.98	22,31	…		n
			0.250	6,35	17.02	25,36	…		n
			0.280	7,11	18.97	28,26	STD	n	n
			0.312	7,92	21.04	31,32	…	n
			0.344	8,74	23.08	34,39	…	n
			0.375	9,53	25.03	37,31	…	n
			0.432	10,97	28.57	42,56	XS	n
			0.562	14,27	36.39	54,20	…	n
			0.719	18,26	45.35	67,56	…	n
			0.864	21,95	53.16	79,22	XXS	n
8	8.625	219,1	0.203	5,16	18.26	27,22	…		n
			0.219	5,56	19.66	29,28	…		n
			0.250	6,35	22.36	33,31	…		n
			0.277	7,04	24.70	36,81	…	n	n
			0.312	7,92	27.70	41,24	…	n	n
			0.322	8,18	28.55	42,55	STD	n
			0.344	8,74	30.42	45,34	…	n
			0.375	9,53	33.04	49,25	…	n
			0.406	10,31	35.64	53,08	…	n
			0.438	11,13	38.30	57,08	…	n
			0.500	12,70	43.39	64,64	XS	n
			0.594	15,09	50.95	75,92	…	n
			0.719	18,26	60.71	90,44	…	n
			0.812	20,62	67.76	100,92	…	n
			0.875	22,23	72.42	107,92	XXS	n
			0.906	23,01	74.69	111,27	…	n
10	10.750	273,0	0.203	5,16	22.87	34,08	…		n
			0.219	5,56	24.63	36,67	…		n
			0.250	6,35	28.04	41,75	…		n
			0.279	7,09	31.20	46,51	…	n	n
			0.307	7,80	34.24	51,03	…	n	n
			0.344	8,74	38.23	56,98	…	n
			0.365	9,27	40.48	60,31	STD	n
			0.438	11,13	48.24	71,90	…	n
			0.500	12,70	54.74	81,55	XS	n
			0.594	15,09	64.43	96,01	…	n
			0.719	18,26	77.03	114,75	…	n
			0.844	21,44	89.29	133,06	…	n
			1.000	25,40	104.13	155,15	XXS	n
			1.125	28,58	115.64	172,33	…	n
12	12.750	323,8	0.219	5,56	29.31	43,63	…		n
			0.250	6,35	33.38	49,71	…		n
			0.281	7,14	37.42	55,75	…		n
			0.312	7,92	41.45	61,69	…		n
			0.330	8,38	43.77	65,20	…	n	n
			0.344	8,74	45.58	67,93	…	n	n
			0.375	9,53	49.56	73,88	STD	n
			0.406	10,31	53.52	79,73	…	n
			0.438	11,13	57.59	85,84	…	n
			0.500	12,70	65.42	97,46	XS	n
			0.562	14,27	73.15	108,96	…	n
			0.688	17,48	88.63	132,08	…	n
			0.844	21,44	107.32	159,91	…	n
			1.000	25,40	125.49	186,97	XXS	n
			1.125	28,58	139.67	208,14	…	n
			1.312	33,32	160.27	238,76	…	n
14	14.000	355,6	0.219	5,56	32.23	47,99	…		n
			0.250	6,35	36.71	54,69	…		n
			0.281	7,14	41.17	61,35	…		n
			0.312	7,92	45.61	67,90	…		n
			0.344	8,74	50.17	74,76	…	n	n
			0.375	9,53	54.57	81,33	STD	n
			0.438	11,13	63.44	94,55	…	n
			0.469	11,91	67.78	100,94	…	n
			0.500	12,70	72.09	107,39	XS	n
			0.594	15,09	85.05	126,71	…	n
			0.750	19,05	106.13	158,10	…	n
			0.938	23,83	130.85	194,96	…	n
			1.094	27,79	150.79	224,65	…	n
			1.250	31,75	170.21	253,56	…	n
			2.000	50,80	256.32	381,83	…	n
			2.125	53,98	269.50	401,50	…	n
16	16.000	406,4	0.219	5,56	36.94	54,86	…		n
			0.250	6,35	42.05	62,64	…		n
			0.281	7,14	47.17	70,30	…		n
			0.312	7,92	52.27	77,83	…		n
			0.344	8,74	57.52	85,71	…		n
			0.375	9,52	62.58	93,17	STD		n

      *STD — standard weight class
      *XS — ultrastrong weight class
      *XXS — double strong weight class

      Mandatory requirement

•	fulfilment of chemical composition control test;
•	hydraulic pressure test or non-destructive testing;
•	hydraulic pressure test or non-destructive control of weld seam (for welded pipes);
•	bend-over test (for pipes of nominal diameter 2 inches or below);
•	flattening test (for pipes of nominal diameter 2 inches or below);
•	bevelling (of pipes of outside diameter not less than 60,3 mm and wall thickness not less than 5 mm, if otherwise is not stipulated in a contract).