|
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 Test
Refer 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 Test
Refer to ASTM A-450
When ever Applicable |
|
ASTM A-269
Seamless & Welded Tubes
General 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 Welded
Austenitic Stainless
Steel 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
tubes
Refer 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 |
