Category B || SNB Impex

Category B. . .

The above Pipes, Tubes can be supplied by us in all Size, Length and Specifications with 3rd Party Inspection, if required

Category B - More Information
specifications.

Indian Standards	British Standards	American Specifications
IS : 1914 Carbon Steel boiler tubes and super heater tubes.	BS : 980 Steel tubes for automobile purposes.	ASTM A 178 Electric resistance welded carbon steel boiler tubes.
IS : 1978 Line pipe	BS : 1717 Steel tubes for cycle and motorcycle purposes.	ASTM A 214 Electric resistance welded carbon steel heat exchanger and condenser tubes.
IS : 2039 Steel tubes for bicycles and allied purposes	BS : 1775 Steel tubes for mechanical, structural and general engineering purposes.	JAPANESE STANDARD JIS : G 3445 Carbon steel tubes for machine structural purposes.
IS : 3074 Steel tubes for automotive purposes	BS : 3059 Part I & II Low tensile carbon steel tubes with / without specified elevated temperature properties for boiler and super heater.
IS : 3601 Steel tubes for mechanical and general engineering purposes.	BS : 6323 Steel tubes for automobile, mechanical and general engineering purposes. Electric resistance welded carbon steel boiler tubes
IS : 7138 Steel tubes for furniture purposes.
IS : 8036 Mild steel transformer cooling tubes.
IS : 1161 Steel tubes for structural purposes.
IS : 4923 Hollow steel section for structural use.

Popular Size Range For ERW/CEW Boiler/Air Heater Tubes
mm	In.	mm	Swg
31.75	1 1/4	3.25-1.63	10-16
33.70		3.66-1.63	9-16
34.93	1 3/8	3.66-1.63	9-16
38.10	1 1/2	3.66-1.63	9-16
40.00		3.66-1.63	9-16
41.28	1 1/58	3.66-1.63	9-16
44.45	1 3/4	3.66-1.63	9-16
49.00	1 15/16	4.06-1.63	8-16
50.80	2	4.06-1.63	8-16
57.15	2 1/4	4.06-1.63	8-16
60.30	2 3/8	4.06-1.63	8-16
63.50	2 1/2	4.06-1.63	8-16
65.00	2 9/16	4.06-1.63	8-16
69.85	2 3/4	4.06-2.64	8-12
76.20	3	3.66-2.64	9-12
82.50	3 1/4	4.47-2.95	7-11
88.90	3 1/2	4.47-2.95	7-11
101.60	4	4.47-3.25	7-10
114.30	4 1/2	4.47-3.25	7-10
Note : 1.Tubes ranging between 4.76 mm od and 31.57 mm od can also be supplied on request. 2.For hydraulic testing, the minimum length required in 3.50 mm