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Manufacturer of Stainless Steel Welded Tubes & Pipes

Contact Info

Factory Address : Survey No. 85/6/2/B, Khata No.1978 Manekpur Road Khatalwada 396120, Valsad – Gujarat

ASTM Standard

ASTM STANDARD

Specification Allowable outside Diameter Variations in MM Allowable wall Thickness variations Specification Exact length Tolerances In mm Testing
Nominal Diameter Over Under Over % Under % Over % Under %

ASTM A -213
Seamless Boiler Super heater and Heat Exchanger Tubes

Under 25.4
25.4-38.1 Incl.
38.1-50.8 excel.
50.8-63.5 excel.
63.5-76.2 excel.
76.2-101.6 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

Under 25.4
25.4-38.1 Incl.
38.1-50.8 excel.
50.8-63.5 excel.
63.5-76.2 excel.
76.2-101.6 Incl.

0.10
0.15
0.20
0.25
0.30 0.36

0.10
0.15
0.20
0.25
0.30 0.36

+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
Flare Test/Flange Test
*Reverse Bend Test
Hardness Test
100% Hydrostatic Test
* Reverse Flattening Test
Refer to ASTM A - 450
*Wherever Applicable

ASTM A-269
Seamless & Welded Tubing for General Service

Up to 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
0.13
0.25
0.38
0.76

+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
Flange Test (Welded Only)
Hardness Test
Flattening Test, Reverse
Flattening

100% Hydrostatic

ASTM A -312
Seamless & Welded Pipe

13.70-48.3 incl.
48.3-114.3 incl.
114.3-220 incl.

0.40
0.79
1.60

0.79
0.79
0.79

+12.5

-12.5

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)

ASTM A -554 Mechanical Steel Tubing

Up to 5" 127 mm

0.1 to 0.5

to 0.5

+10

-10

1.6 to 4.88

0

As per Customer Requirement