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
Diameter
Over
Under
Over
Under
Over
Under
Testing

ASTMA-213
Seamless Ferritic & Austenitic steel, Boiler & Superheater Tubes & Austenitic steel Heat Exchanger Tubes
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

• Tension Test
• Flattening Test
• Flare Test
• Hardness Test
• 100% Hydrostatic Test or NDT

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 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

10
10
10
10
10
10

10
10
10
10
10
10

3.175
3.175
3.175
3.760
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
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
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

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