ASTM Standards
HIGHLIGHTS OF ASTM SPECIFICATIONS FOR STAINLESS STEEL TUBES AND PIPES
Specifications |
Allowable Outside Diameter Variations in mm |
Allowable Wall Variations in % |
Exact length Tolerances in mm |
Testing |
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ASTMA-213 Seamless Ferritic & Austenitic steel, Boiler & Superheater Tubes & Austenitic steel Heat Exchange Tubes |
Diameter |
Over |
Under |
Over |
Under |
Over |
Under |
• Tension Test
• Flattening Test
• Flare Test
• Hardness Test
• 100% Hydrostatic Test or NDT |
Under 25.4 25.4-38.1 incl. 38.1-50.8 excl. 50.8-63.5 encl. 63.5-76.2 excl. 76.2-101.6 incl. |
0.1016
0.1524
0.2032
0.2540
0.3048
0.3810 |
0.1016
0.1524
0.2032
0.2540
0.3048
0.3810 |
20
20
22
22
22
22 |
0
0
0
0
0
0
|
3.175
3.175
3.175
3.760
4.760
4.760 |
0
0
0
0
0
0 |
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ASTMA-249 Welded Austenitic steel Boiler, Superheater, Heat Exchanger & Condenser Tubes |
Under 25.4 25.4-38.1 incl. 38.1-50.8 excl. 50.8-63.5 excl. 63.5-76.2 excl. 76.2-101.6 incl. |
0.1016
0.1524
0.2032
0.2540
0.3048
0.3810 |
0.1016
0.1524
0.2032
0.2540
0.3048
0.3810 |
10
10
10
10
10
10 |
10
10
10
10
10
10 |
3.175
3.175
3.175
4.760
4.760 4.760 |
0
0
0
0
0
0
|
• Tension Test
• Flattening Test
• Flange Test
• Reverse Bend Test
• Hardness Test
• 100% Hydrostatic Test or NDT |
ASTMA-269 Seamless & Welded austenitic steel tubing for general service |
Under 12.7 12.7-38.1 excl. 38.1-88.9 excl. 88.9-139.7 excl. 139.7 203.2 excl. |
0.13
0.13
0.25
0.38
0.76 |
0.13
0.20
0.25
0.28
0.38 |
15
10
10
10
10 |
15
10
10
10
10 |
3.2
3.2
4.8
4.8
4.8 |
0
0
0
0
0 |
• Flare Test (Seamless only)
• Hardness Test
• Flange Test (Welded only)
• Reverse Flattening Test (Welded only)
• 100% Hydrostatic Test or NDT |
ASTMA-270 Seamless & Welded austenitic steel for Sanitary Tubing |
Under 2504
2504 to 50.8 excl.
50.8 to 76.2 excl.
76.2 to 101.6 excl. |
0.13
0.20
0.25
0.38 |
0.13
0.20
0.25
0.38 |
12.5
12.5
12.5
12.5 |
12.5
12.5
12.5
12.5 |
3.2
3.2
3.2
3.2 |
0
0
0
0 |
• Reverse Flattening Test
• 100% Hydrostatic Test or NDT
• External polish on all tubes
• Refer to ASTM A-270 |
ASTMA-312 Seamless, Welded & Heavily Cold worked Austenitic SS Pipes |
1/8 to 21/2 incl.,
a II t/D ratios
3 to 18 incl.,
t/D up to 5 % incl.
3 to 18 incl.,
t/D> 5 % |
0.40
0.80
1.60 |
0.80
0.80
0.80 |
20.0
22.5
15.0 |
12.5
12.5
12.5 |
6.35
6.35
6.35 |
0
0
0 |
• Tension Test
• Flattening Test
• 100% Hydrostatic Test or NDT
• Refer to ASTM A- 999 |
ASTMA-688 Welded Feed water heater 'U'Tubes |
Under 38.10 mm |
0.1016 |
0.1016 |
+20
+10 |
-10
(For Avg. Walk thk)
-0
(for Min. Walk thk) |
3 to 13 |
0 |
• Tension Test
• Flattening Test
• Flange Test
• Reverse Bend Test
• Hardness Test
• Reverse Flattening Test
• 100% Hydrostatic Test or NDT
• Air under water test |
Equivalent EN Specifications
| EN 10216 - 5 | Stainless Steel Seamless Tubes for High Pressure Applications |
| EN 10217-7 | Stainless Steel Welded Tubes for High Pressure Applications |
| EN 10297 - 2 | Stainless Steel Seamless Tubes for General Applications |
| EN 10296 - 2 | Stainless Steel Welded Tubes for General Applications |