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