:: Stainless Steel Pipes Dimension (Schedule, Wall Thickness & Weight)
: : Dimension & Weight - Standard Tubing Sizes
:: ASTM Specification & Tolerance For Tubing & Piping
| Specification | Allowable Outside Diameter Variation in mm | Allowable Wall Thickness Variation | Exact Length Tolerance in mm | Testing | ||||
| Nominal Diameter | Over | Under | %Over | %Under | Over | Under | ||
| ASTM-A213 Seamless Boiler Superheater and Heat Exchanger Tubes | Under 25.4 | .1016 | .1016 | +20 | -0 | 3.175 | 0 | Flattening Test |
| 25.4-38.1 incl | .1524 | .1524 | +22 | -0 | 3.175 | 0 | Tension Test | |
| 38.1-50.8 excl | .2032 | .2032 | +22 | -0 | 3.176 | 0 | Flare Test | |
| 50.8-63.5 excl | .254 | .254 | +2 | -0 | 4.46 | 0 | Hardness Test | |
| 63.5-76.2 excl | .3048 | .3048 | +22 | -0 | 4.76 | 0 | 100% Hydrostatic test | |
| 76.2-101.6 incl | .381 | .381 | +22 | -0 | 4.76 | 0 | Refer to ASTM A-450 | |
| ASTM-A249 Welded Boiler Superheater, Heat Exchanger And Condenser Tubes | Under 25.4 | .1016 | .1016 | +10 | -10 | 3.175 | 0 | Tension Test |
| 25.4-38.1 incl | .1524 | .1524 | +10 | -10 | 3.175 | 0 | Flattening Test | |
| 38.1-50.8 Excl | .2032 | .2032 | +10 | -10 | 3.175 | 0 | Flange Test | |
| 50.0-63.5 excl | .254 | .254 | +10 | -10 | 4.762 | 0 | Reverse Bend Test | |
| 63.5-76.2 excl | .3848 | .3848 | +10 | -10 | 4.762 | 0 | Hardness Test | |
| 76.2-101.6 incl | .381 | .381 | +10 | -10 | 4.762 | 0 | 100% Hydrostastic Test Refer to ASTM A-450 | |
| Minimum Wall tubes +18% 0 available On request | ||||||||
| ASTM-A269 Seamless & Welded Tubing for General Service | Untp12.7 | .13 | .13 | +15 | -15 | 3.2 | 0 | Flare Test (Seamless Only) |
| 12.7-38.1 exc! | .13 | .13 | +10 | -10 | 3.2 | 0 | Flange Test (Welded Only) | |
| 38.1-88.9 excl | .25 | .25 | +10 | -10 | 4.8 | 0 | Hardness Test | |
| 88.9-139.7 excl | .38 | .38 | +10 | -10 | 4.8 | 0 | Reverse Flattening Test | |
| 139.7-203.2 excl | .76 | .76 | +10 | -10 | 4.8 | 0 | (Welded only) 100% Hydrostatic Test Refer to ASTM-A269 | |
| ASTM-A270 Seamless & Welded Sanitary Tubing | 25.4 | .05 | .20 | +10.0 | -10.0 | 3.2 | 0 | Reverse flattening Test |
| 38.1 | .05 | .20 | +10.0 | -10.0 | 3.2 | 0 | 100% Hydrostastic Test | |
| 50.8 | .05 | .28 | +10.0 | -10.0 | 3.2 | 0 | External' polish on all tubes | |
| 60.5 | .05 | .28 | +10.0 | -10.0 | 3.2 | 0 | Refer to ASTM A-270 | |
| 76.2 | .08 | .30 | +10.0 | -10.0 | 3.2 | 0 | ||
| 101.6 | .08 | .38 | +10.0 | -10.0 | 3.2 | 0 | ||
| ASTM-A312 Seemless & Welded pipe | 3.175-38.1 incl | .4 | .79 | Minimum Wall 12.5% under nominal wall Specified | 6.4 0 | 0 | Tension Test | |
| 38.1-1016 incl | .79 | .79 | 6.4 0 | 0 | Flattening Test | |||
| 101.6-203.2 imcl | 1.59 | .79 | 6.4 0 | 0 | 100% Hydrostatic Test | |||
| (Normally Random Lengths ordered | Refer to ASTM A-530 | |||||||
| ASTM A-358 Welded pipe | 219.08-750mm or 0.01 inch | +0.5% | -0.3 | 6.0 | Refer to ASTM A-530 | |||
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