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..:: ASTM Specification for S.S. Tubing & Piping ::..

 
ASTM
Specifications
Allowable Outside Diameter
Variations in MM
Allowable Wall Thickness Variations Testing

ASTM A-213 Seamless Feffitic and austenitic tubes

Nominal Diameter
Under 25.4 mm
25.4 - 38.1 inclu
38.1 - 50.8 exclu
50.8 - 63.5 exclu
63.5 - 76.2 exclu
76.2 - 101.6 inclu

Over Under
.1016 .1016
.1524 .1524
.2032 .2032
.254 .254
.3048 .3048
.381 .381

%
+20%
-0
+20%
-0
+22%
-0
+22%
-0
+22%
-0

Refer to
ASTM
A 450

ASTM A-249
Welded Heat
exchanger and
condenser tubes

Under 25.4 mm
25.4 - 38.1 inclu
38.1 - 50.8 inclu
50.8 - 63.5 inclu
63.5 - 76.2 inclu
76.2 - 101.6 inclu

.1016 .1016
.1524 .1524
.2032 .2032
.254 .254
.304 .304
.381 .381

+/-10%
+/-10%
+/-10%
+/-10%
+/-10%
+/-10%

Refer to
ASTM
- A 450

ASTM A-269
Seamless and Welded austentic S.S. Tube

Up to 12.7 mm
12.7 to 38.1 mm
38.1 to 88.9 mm
88.9 to 139.7 mm
139.7 to 203.2 mm

0.13 0.13
0.13 0.13
0.25 0.25
0.38 0.38
0.76 0.76

+/-15%
+/-10%
+/-10%
+/-10%
+/-10%

Refer to
ASTM
- A 450

ASTM A-312
Seamless and Welded austentic Pipe

13.72 - 48.26 mm
60.33 - 114.3
141.3 - 219.08
168.28 - 219.08

273.05 - 373.85

+/- 0.40 - 0.79
+/- 0.79 - 0.79
+/- 1.59 - 0.79
+/- 1.59 - 0.79
+/- 2.38 - 0.79

-12.5%

Refer to
ASTM

- A 530

ASTM A-358
Welded austentic Pipe

219.08 - 750 mm

+/- 0.5%

-0.3 mm

Refer to
ASTM
- A 530

ASTM A-409
Welded austentic Pipe

355.6 - 750 mm

+/- 0.2%
to
+/- 0.4%

- 0.46 mm

Refer to
ASTM
- A 530

 

 

 

 

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