Welded tubes

Welded tubes

Longitudinal welded tubes manufactured from flat-rolled products (strips) on electric tube-welding lines using the method of automatic inert gas (argon) tungsten arc welding, with in line heat treatment.

Guaranteed mechanical properties
Alloy	Ultimate rupture strength KSI, min	Elongation %, min
GR1	34.8	22
Gr2	50.0	20

Welded tubes

Outside diameter mm	Wall thickness, mm
	0.5	0.6	0.7	0.8	0.89	0.9	1	1.24	1.65
12.7	*	*	*	*	*
15.9	*	*	*	*	*	*
19.05	*	*	*	*	*	*	*	*	*
20	*	*	*	*	*	*	*	*	*
21	*	*	*	*	*	*	*	*	*
22.2	*	*	*	*	*	*	*	*	*
23	*	*	*	*	*	*	*	*	*
24	*	*	*	*	*	*	*	*	*
25.4	*	*	*	*	*	*	*	*	*
30			*	*	*	*	*	*	*
31.75				*	*	*	*	*	*
38.1					*	*	*	*	*

Tube diameter from 0.47 to 1.50 inch, with wall thickness from 0.02 to 0.06 inch based on tube diameter.

Tubes comply with the requirements of ASTM B338, ASME SB338, ASTM A249/A249M, TU-1825-489-07510017-98.