Precision Tubes


DIMENSIONS


DIMENSIONS & METERS PER TOONE
OF PRECISION TUBES
 

OUT SIDE
DIAMETER

WALL THICKNESS
 
SWG 14 16 18 19 20
MM     INCH MM 2.00 1.6 1.25 1.00 90
12.70    1/2 1890 2280 2830 3470 3820
15.88    5/8 1460 1780 2220 2720 3010
19.05    3/4 1190 1455 1820 2250 2470
21.43    27/32 1046 1275 1612 1980 2197
22.23    7/8 1002 1225 1543 1904 2114
25.4      1 869 1063 1347 1661 1841
27.00    1 1/2 811 999 1261 1560 1727
28.58    1 1/2 763 939 1187 1470 1628
31.75    1 1/2 681 841 1063 1319 1461
38.1      1 1/2 561 694 881 1092 1212
50.80    2'' 415 515 654 814 -


                                 

TOLERANCES

                            a.     Thickness (excluding weld) +- 8% The height of internal fin shall
                                     not be grater than 60% of wall thickness.

                            b.     Mean Outside Diameter +- 0.12 m.m.

                            c.     Maximum variation in diameter : At no point in the tube the variation
                                    in outside diameter shall be more than 0.05 m.m. over and above
                                    the tolerance on the mean diameter.

 

Note : The above are general tolerances. The requirments of a particular specification are complied with whenever one of the specifications given  above is mentioned in the order.