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Products

G.I. Pipes

Specification & Standards
According to BS 1387 : 1985
Special Product

G.I Pipes — Range
Outer Diameter	20.80 mm - 323 mm (1/2" - 12")
Thickness	(1.6 - 5.5 mm) or (as per customers specifications)

G.I Pipes — Specification and Standards
British Standard	BS 1387 (for galvanizing) - BS 21 (for threading)
Length	6.0 meter + 06 mm. (Customized length of 4.88 meter to 7.00 meter)
Thickness	Extra Light & Light Tubes -8% Medium & Heavy Tubes -10%
Outer Diameter	In accordance with BS-1387 standards
Weight	One single tube -8%, +10%; Mean consignment weight ±4%
Zinc Coating Thickness	55-77 Microns
Straightness	0.2% of any length measured along the center line or on customer requirement
Packaging	Bundled hexagonally by sealing metal straps and each bundle is tagged for size, thickness, weight etc. Product can be supplied with galvanized sockets.

Chemical Composition (Ladle)				Mechanical Properties			Performance Test
C Max. %	Mn Max. %	P Max. %	S Max. %	Yield Strength (min.) N/mm²	Tensile Strength - N/mm²	Elongation Min. %	Applies Up to DN 50	Applies Greater than DN 50
0.20	1.20	0.045	0.045	195	320-460	20	MS: 180^o GI: 90^o	Platens Distance 60% of the OD

Dimensions of G.I Pipes : Extra Light
Dimensions of Steel Tube		Extra Light
Nominal Size (DN)	Designation of Thread	Outside Diameter		Thickness (mm)	Weight of Black Tube		Hydrostatic Test Pressure	Threads Per Inch
Nominal Size (DN)	Designation of Thread	Max. (mm)	Min. (mm)	Thickness (mm)	Plain End Kg. / m	Plain End Kg. / 6m	Bar	BS 21 1985
15	1/2	21.3	20.8	1.80	0.854	5.124	50	14
20	3/4	26.6	26.1	2.00	1.201	7.206	50	14
25	1	33.5	32.8	2.30	1.752	10.512	50	11
32	1-1/4	42.2	41.6	2.30	2.246	13.476	50	11
40	1-1/2	48.1	47.5	2.60	2.898	17.388	50	11
50	2	60.2	59.3	2.60	3.660	21.96	50	11
65	2-1/2	75.7	74.9	2.90	5.177	31.062	50	11
80	3	88.4	87.6	2.90	6.086	36.516	50	11
100	4	113.5	112.6	2.20	8.668	52.008	50	11
125	5	139.0	138.0	3.60	11.975	71.85	50	11
150	6	165.0	163.0	3.60	14.239	85.434	50	11

Dimensions of G.I Pipes : Light
Dimensions of Steel Tube		Light
Nominal Size (DN)	Designation of Thread	Outside Diameter		Thickness (mm)	Weight of Black Tube		Hydrostatic Test Pressure	Threads Per Inch
Nominal Size (DN)	Designation of Thread	Max. (mm)	Min. (mm)	Thickness (mm)	Plain End Kg. / m	Plain End Kg. / 6m	Bar	BS 21 1985
15	1/2	21.4	21.0	2.0	0.947	5.68	50	14
20	3/4	26.9	26.4	2.3	1.38	8.28	50	14
25	1	33.8	33.2	2.6	1.98	11.88	50	11
32	1-1/4	42.5	41.9	2.6	2.54	15.24	50	11
40	1-1/2	48.4	47.8	2.9	3.23	19.38	50	11
50	2	60.2	59.6	2.9	4.08	24.48	50	11
65	2-1/2	76.0	75.2	3.2	5.71	34.26	50	11
80	3	88.7	87.9	3.2	6.72	40.32	50	11
100	4	113.9	113.0	3.6	9.75	58.50	50	11

Dimensions of G.I Pipes : Medium
Dimensions of Steel Tube		Medium
Nominal Size (DN)	Designation of Thread	Outside Diameter		Thickness (mm)	Weight of Black Tube		Hydrostatic Test Pressure	Threads Per Inch
Nominal Size (DN)	Designation of Thread	Max. (mm)	Min. (mm)	Thickness (mm)	Plain End Kg. / m	Plain End Kg. / 6m	Bar	BS 21 1985
15	1/2	21.7	21.1	2.6	1.21	7.26	50	14
20	3/4	27.2	26.6	2.6	1.56	9.36	50	14
25	1	34.2	33.4	3.2	2.41	14.46	50	11
32	1-1/4	42.9	42.1	3.2	3.10	18.60	50	11
40	1-1/2	48.8	48.0	3.2	3.57	21.42	50	11
50	2	60.8	59.8	3.6	5.03	30.18	50	11
65	2-1/2	76.6	75.4	3.6	6.43	38.58	50	11
80	3	89.5	88.1	4.0	8.37	50.22	50	11
100	4	114.9	113.3	4.5	12.2	73.20	50	11
125	5	140.6	138.7	5.0	16.6	99.60	50	11
150	6	166.1	164.1	5.0	19.7	118.20	50	11

Dimensions of G.I Pipes : Heavy
Dimensions of Steel Tube		Heavy
Nominal Size (DN)	Designation of Thread	Outside Diameter		Thickness (mm)	Weight of Black Tube		Hydrostatic Test Pressure	Threads Per Inch
Nominal Size (DN)	Designation of Thread	Max. (mm)	Min. (mm)	Thickness (mm)	Plain End Kg. / m	Plain End Kg. / 6m	Bar	BS 21 1985
15	1/2	21.7	21.1	3.2	1.44	8.64	50	14
20	3/4	27.2	26.6	3.2	1.87	11.22	50	14
25	1	34.2	33.4	4.0	2.94	17.64	50	14
32	1-1/4	42.9	42.1	4.0	3.80	22.80	50	11
40	1-1/2	48.8	48.0	4.0	4.38	26.28	50	11
50	2	60.8	59.8	4.5	6.19	37.14	50	11
65	2-1/2	76.6	75.4	4.5	7.93	47.58	50	11
80	3	89.5	88.1	5.0	10.30	61.80	50	11
100	4	114.9	113.3	5.4	14.50	87.00	50	11
125	5	140.6	138.7	5.4	17.90	107.40	50	11
150	6	166.1	164.1	5.4	21.30	127.80	50	11

Steelex Special Product
Dimensions of Steel Tube		Steelex Special Product
Nominal Size (DN)	Designation of Thread	Outside Diameter		Thickness (mm)	Weight of Black Tube		Hydrostatic Test Pressure	Threads Per Inch
Nominal Size (DN)	Designation of Thread	Max. (mm)	Min. (mm)	Thickness (mm)	Plain End Kg. / m	Plain End Kg. / 6m	Bar	BS 21 1985
15	1/2	21.3	20.8	1.60	0.77	4.60	50	14
20	3/4	26.6	26.1	1.60	0.96	5.77	50	14
25	1	33.5	32.8	1.60	1.24	7.46	50	11
25	1	33.5	32.8	2.00	1.54	9.21	50	11
32	1-1/4	42.2	41.6	1.60	1.59	9.54	50	11
32	1-1/4	42.2	41.6	2.00	1.97	11.80	50	11
40	1-1/2	48.1	47.5	1.60	1.82	10.93	50	11
40	1-1/2	48.1	47.5	2.00	2.26	13.55	50	11
50	2	60.2	59.3	1.60	2.29	13.76	50	11
50	2	60.2	59.3	2.00	2.85	17.09	50	11
50	2	60.2	59.3	4.00	5.55	33.32	50	11
65	2-1/2	75.7	74.9	1.60	2.91	17.44	50	11
65	2-1/2	75.7	74.9	2.00	3.62	21.69	50	11
65	2-1/2	75.7	74.9	2.60	4.66	27.96	50	11
65	2-1/2	75.7	74.9	4.00	7.10	42.61	50	11
80	3	88.4	87.6	2.00	4.24	25.44	50	11
80	3	88.4	87.6	2.60	5.48	32.85	50	11
80	3	88.4	87.6	3.60	7.52	45.12	50	11
80	3	88.4	87.6	4.50	9.35	56.12	50	11
100	4	113.5	112.6	2.00	5.48	32.86	50	11
100	4	113.5	112.6	2.60	7.08	42.48	50	11
100	4	113.5	112.6	4.00	10.80	64.77	50	11
100	4	113.5	112.6	4.87	13.12	78.70	50	11
125	5	139.0	138.0	2.00	6.73	40.39	50	11
125	5	139.0	138.0	2.60	8.71	52.28	50	11
125	5	139.0	138.0	3.20	10.68	64.06	50	11
125	5	139.0	138.0	4.00	13.32	79.89	50	11
125	5	139.0	138.0	4.50	14.93	89.55	50	11
150	6	165.0	163.0	2.60	10.35	62.08	50	11
150	6	165.0	163.0	3.20	12.69	76.13	50	11
150	6	165.0	163.0	4.00	15.88	95.28	50	11
150	6	165.0	163.0	4.50	17.82	106.93	50	11