| Specification |
Allowable Outside Diameters Variations in mm |
Allowable wall thickness variations in % |
Exact Length tolerances in mm |
Tests |
| ASTM A-213
Seamless Boiler, Super heater, and Heat Exchanger tubes |
| Diameters |
Over |
Under |
| upto 25.4 |
0.10 |
0.10 |
| 25.4 to 38.1 incl. |
0.15 |
0.15 |
| 38.1 to 50.8 excl. |
0.20 |
0.20 |
| 50.8 to 63.5 excl. |
0.25 |
0.25 |
| 63.5 to 76.2 excl. |
0.30 |
0.30 |
| 76.2 to 101.6 incl. |
0.38 |
0.38 |
|
| Over |
Under |
| +20 |
-0 |
| +20 |
-0 |
| +22 |
-0 |
| +22 |
-0 |
| +22 |
-0 |
| +22 |
-0 |
|
| Over |
Under |
| 3.17 |
0 |
| 3.17 |
0 |
| 3.17 |
0 |
| 3.76 |
0 |
| 4.76 |
0 |
| 4.76 |
0 |
|
Tension Test
Flattening Test
Flare Test
Hardness Test
100% Hydrostatic TestRefer to ASTM A-450 |
|
ASTM A-249
Welded Boiler
Super heater
Heat Exchanger
and
Condenser Tubes |
 |
| upto 25.4 |
0.10 |
0.10 |
| 25.4 to 38.1 incl. |
0.15 |
0.15 |
| 38.1 to 50.8 excl. |
0.20 |
0.20 |
| 50.8 to 63.5 excl. |
0.25 |
0.25 |
| 63.5 to 76.2 excl. |
0.30 |
0.30 |
| 76.2 to 101.6 incl. |
0.38 |
0.38 |
|
|
| +10 |
-10 |
| +10 |
-10 |
| +10 |
-10 |
| +10 |
-10 |
| +10 |
-10 |
| +10 |
-10 |
| Minimum Wall
+ 18%- 0 available
on request. |
|
|
| 3.17 |
0 |
| 3.17 |
0 |
| 3.17 |
0 |
| 4.76 |
0 |
| 4.76 |
0 |
| 4.76 |
0 |
|
Tension Test
Flattening Test
Flange Test
Reverse Bend Test
Hardness Test
100% Hydrostatic Test
Reverse Flattening TestRefer to ASTM A-450
When ever Applicable |
|
ASTM A-269
Seamless & Welded TubesGeneral Services |
|
| upto 12.7 |
0.13 |
0.13 |
| 12.7 to 38.1 excl. |
0.13 |
0.13 |
| 38.1 to 88.9 excl. |
0.25 |
0.25 |
| 88.9 to 139.7 excl. |
0.38 |
0.38 |
|
|
| +15 |
-15 |
| +10 |
-10 |
| +10 |
-10 |
| +10 |
-10 |
|
|
| 3.2 |
0 |
| 3.2 |
0 |
| 4.8 |
0 |
| 4.8 |
0 |
|
Flare Test
(Seamless Only)
Flange Test
(Welded Only)
Reverse Flattening Test
(Welded Only)
Hardness Test
100% Hydrostatic Test |
| ASTM A-270
Seamless and WeldedAustenitic StainlessSteel Sanitary Tubing |
|
| 25.4 |
0.05 |
0.20 |
| 38.1 |
0.05 |
0.20 |
| 50.8 |
0.05 |
0.28 |
| 63.5 |
0.05 |
0.28 |
| 76.2 |
0.08 |
0.30 |
| 101.6 |
0.08 |
0.38 |
|
|
| +12.5 |
-12.5 |
| +12.5 |
-12.5 |
| +12.5 |
-12.5 |
| +12.5 |
-12.5 |
| +12.5 |
-12.5 |
| +12.5 |
-12.5 |
|
|
| 3.2 |
0 |
| 3.2 |
0 |
| 3.2 |
0 |
| 3.2 |
0 |
| 3.2 |
0 |
| 3.2 |
0 |
|
Reverse Flattening test
100% Hydrostatic Test
External Polish on all
tubesRefer to ASTM A-270 |
| ASTM A-312
Seamless & Welded pipes |
|
| 13.7 to 48.3 incl. |
0.40 |
0.79 |
| 48.3 to 114.3 incl. |
0.79 |
0.79 |
| 114.3 to 220 incl. |
1.60 |
0.79 |
|
Minimum Wall
12.5% under normal Wall Specified. |
|
| 6.4 |
0 |
| 6.4 |
0 |
| 6.4 |
0 |
| (Normally Random Lengths Ordered) |
|
Tension Test
Flattening Test
100% Hydrostatic Test
Refer to ASTM A-530
|
