Stainless Steel Pipes/Plates
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 | ||||||||
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