Seamless tube

Applications
These tubes pass through a hot drawing process then they are cold reduced. Its applications are aimed primarily at technological field: Chemical, petrochemical, heat exchangers and boiler pressure.
They share the same scope as welded tubes technology (with or without filler material) but being more expensive than manufacturing welded tube, it is only used if the required dimensions are impossible to achieve with a longitudinal weld strip, or to eliminate any leak risks.
Grades
AISI 304, 304L, 316, 316L, Duplex, Superduplex, 904L
Thicknesses
SCH 10s- SCH 160S
Length
4 – 7 m
Measurements
Ø 6 – 219,1 mm
Standards
NFA 49 117, ASTM A – 312
Dimensions

ø | ø | nominal wall thickness | |||
Nominal | Exter | sch 10S | sch 40S | sch 80S | |
inches | mm | mm | mm | mm | |
1/4″ | 13,72 | 1,65 | 2,24 | 3,02 | |
3/8″ | 17,15 | 1,65 | 2,31 | 3,20 | |
1/2″ | 21,34 | 2,11 | 2,77 | 3,73 | |
3/4″ | 26,67 | 2,11 | 2,87 | 3,91 | |
1″ | 33,40 | 2,77 | 3,38 | 4,55 | |
1/4″ | 42,16 | 2,77 | 3,56 | 4,85 | |
1 1/2″ | 48,26 | 2,77 | 6,68 | 5,08 | |
2″ | 60,33 | 2,77 | 3,91 | 5,54 | |
2 1/2″ | 73,03 | 3,05 | 5,16 | 7,01 | |
3″ | 88,90 | 3,05 | 5,49 | 7,62 | |
4″ | 114,30 | 3,05 | 6,02 | 8,56 | |
5″ | 141,30 | 3,40 | 6,55 | 9,53 | |
6″ | 168,28 | 3,40 | 7,11 | 10,97 | |
8″ | 219,08 | 3,76 | 8,18 | 12,70 |
Fittings
ELBOWS, TES AND STUB-ENDSSame sizes as the tube.