|
Specification
|
Allowable Outside
Diameter Variations in mm
|
Allowable Wall Thickness
Variations
|
Exact Length Tolerances
in mm
|
Testing
|
|
ASTMA - 312 Seamless &
Welded Pipe
|
3.175 - 38.1 incl.
|
0.4
|
0.79
|
Minimum Wall
|
6.4
|
0
|
Tension Test
|
|
38.1 - 101.6 incl.
|
0.79
|
0.79
|
12.5% under
|
6.4
|
0
|
Flattering Test
|
|
101.6 - 203.2 incl.
|
1.59
|
0.79
|
nominal wall specified
|
6.4
|
0
|
100% Hydrostatic Test
Refer to ASTMA-530
|
|
ASTMA - 213 Seamless Boiler
Superheater and Heat Exchanger Tubes
|
Nominal Diameter
|
Over
|
Under
|
%Over
|
%Under
|
Over
|
Under
|
|
|
Under 25.4
|
0.1016
|
0.1016
|
20
|
0
|
3.175
|
0
|
Tension Test
|
|
25.4 - 38.1 incl.
|
0.1524
|
0.1524
|
20
|
0
|
3.175
|
0
|
Flattering Test
|
|
38.1 - 5.8 excl.
|
0.2032
|
0.2032
|
22
|
0
|
3.176
|
0
|
Flare Test
|
|
50.8 - 63.5 excl.
|
0.254
|
0.254
|
22
|
0
|
4.76
|
0
|
Hardness Test
|
|
63.5 - 76.2 excl.
|
0.3048
|
0.3048
|
22
|
0
|
4.76
|
0
|
100% Hydrostatic Test
|
|
76.2 - 101.6 incl.
|
0.381
|
0.381
|
22
|
0
|
4.76
|
0
|
Refer to ASTMA - 50
|
|
|
|
ASTMA A - 249 Welder Boiler
Superheater Heat Exchanger and Condenser Tubes
|
Under 25.4
|
0.1016
|
0.1016
|
10
|
-10
|
3.175
|
0
|
Tension Test
|
|
25.4 - 38.1 incl.
|
0.1524
|
0.1524
|
10
|
-10
|
3.175
|
0
|
Flattering Test
|
|
38.1 - 50.8 excl.
|
0.2032
|
0.2032
|
10
|
-10
|
3.175
|
0
|
Flare Test
|
|
50.8 - 63.5 excl.
|
0.254
|
0.254
|
10
|
-10
|
4.76
|
0
|
* Reserve Bend Test
|
|
63.5 - 76.2 excl.
|
0.3048
|
0.3048
|
10
|
-10
|
4.76
|
0
|
Hardness Test
|
|
76.2 - 101.6 excl.
|
0.381
|
0.381
|
10
|
-10
|
4.76
|
0
|
100% Hydrostatic Test
|
|
|
Reverse Flattering Test
Refer to ASTMA A-450 wherever applicable
|
|
ASTMA - 269Seamless &
WeldedTubing for GeneralService
|
UPTO 12.7
|
0.13
|
0.13
|
15
|
-15
|
3.2
|
0
|
Flare Test
|
|
12.7 - 38.1 excl.
|
0.13
|
0.13
|
10
|
-10
|
3.2
|
0
|
Flange Test (Welded Only)
|
|
38.1 - 88.9 excl.
|
0.25
|
0.25
|
10
|
-10
|
4.8
|
0
|
Harness Test
|
|
88.1 - 139.7 excl.
|
0.38
|
0.38
|
10
|
-10
|
4.8
|
0
|
Reverse Flattering Test
|
|
139.7 - 203.2 excl.
|
0.76
|
0.76
|
10
|
-10
|
4.8
|
0
|
(Welded Only)
|
| |
|
|
|
|
|
|
|
100% Hydrastatic Test Refer
to ASTMA - 269
|
Stainless Steel Pipes/Plates