Scope:
The ASTM A53 Pipes covers black and hot-dipped galvanized ERW Grade A and B pipes. It is intended for mechanical and pressure applications for regular use in steam, water, gas and air firefighting systems lines.
Manufacturing:
This pipe is produced using the German-Austrian made tube mill Voest Alpine, which undergoes the state of the art Thermatool Solid Estate welding, using top of the line HRC raw material.
Quality Control:
Our commitment to quality dates back to our creation. We have been ISO certified since 1994 and every single phase of our operations are monitored by a rigorous quality assurance routine to ensure that the pipes produced are of top quality. One of our standard procedures includes a hydrostatic test to ensure welding strength.
Chemical and machinal requirements:
The standard ASTM A53 requirements for grade A and B are maintained.
Chemical requirements:
Composition, maximum percentage
Grade
|
Carbon
|
Manganese
|
Phosphorus
|
Sulfur
|
A
|
0.25
|
0.95
|
0.05
|
0.06
|
B
|
0.30
|
1.20
|
0.05
|
0.06
|
Tensile requirements:
Grade
|
Tensile Strength
|
Yield Strength
|
|
Min, psi(MPa)
|
Min, psi(MPa)
|
A
|
48000
|
(330)
|
30000
|
(205)
|
|
|
|
|
|
B
|
60000
|
(415)
|
35000
|
(240)
|
Hot-Dipped Galvanized:
Using one of the two hot-dipped galvanization units to complete the process, the average galvanizing thickness according to (ASTM) standard.
Dimension and Weights:
Nominal
Pipe Size
|
Exterior Diameter
|
Schedule 40
Nominal Wall (Inches)
|
(Inches)
|
(mm)
|
1/2"
|
0.840
|
21.3
|
0.109
|
2.77
|
3/4"
|
1.050
|
26.7
|
0.113
|
2.87
|
1"
|
1.315
|
33.4
|
0.133
|
3.38
|
1-1/4"
|
1.660
|
42.2
|
0.140
|
3.56
|
1-1/2"
|
1.900
|
48.3
|
0.145
|
3.68
|
2"
|
2.375
|
60.3
|
0.154
|
3.91
|
2-1/2"
|
2.875
|
73.0
|
0.203
|
5.16
|
3"
|
3.500
|
88.9
|
0.216
|
5.49
|
3-1/2"
|
4.000
|
101.6
|
0.226
|
5.74
|
4"
|
4.500
|
114.3
|
0.237
|
6.02
|
5"
|
5.563
|
141.3
|
0.258
|
6.5
|
6"
|
6.625
|
168.3
|
0.280
|
7.11
|
Tolerances
According to ASTM A53 standards requirements.
Length:
6m, 18, 21, 24 ft and cut to length.
End Finish
- Plain Ends: Beveled and cut ends.
-Threaded ends: ASTM standard.
-Swaged Ends.