Cold Rolled Cold Drawn Precision Steel Pipe Large and Small Caliber 1020 1045 4130 4140 5120 5140 42CrMo Seamless Carbon Capillary Tube Alloy steel Pipe
API 5CT L80casingTubingGrade Color Codes
Grade
Grade Type
Number and Color of Bands for Product a with Length³ 1.8 m
Color(s) for Couplings
Entire Coupling
Band(s) b, c
1
2
3
4
5
H40
—
None or black band at the manufacturer’s option
None
Same as for pipe
J55 Tubing
—
One bright green
Bright green
None
J55 Casing
—
One bright green
Bright green
One white
K55
—
Two bright green
Bright green
None
N80
1
One red
Red
None
N80
Q
One red, one bright green
Red
Green
R95
—
One brown
Brown
None
L80
1
One red, one brown
Red
One brown
L80
9Cr
One red, one brown, two yellow
None
Two yellow
L80
13Cr
One red, one brown, one yellow
None
One yellow
C90
1
One purple
Purple
None
T95
1
One silver
Silver
None
C110
—
One white, two brown
White
Two brown
P110
—
One white
White
None
Q125
1
One orange
Orange
None
a In the case of coupling Material, unless otherwise specified in the purchase agreement, the manufacturer’s internal requirements shall govern.
b Special clearance couplings shall also have a black band.
c Seal-ring couplings shall also have a blue band.
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OD (mm)
Wall Thickness (mm)
2
2.5
3
3.5
4
4.5
5
6
6.5-7
7.5-8
8.5-9
9.5-10
11
12
Φ25-Φ28
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Φ32
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Φ34-Φ36
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Φ38
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Φ40
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Φ42
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Φ45
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Φ48-Φ60
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Φ63.5
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Φ68-Φ73
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Φ76
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Φ80
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Φ83
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Φ89
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Φ95
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Φ102
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Φ108
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Φ114
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Φ121
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Φ127
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Φ133
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Φ140
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Φ146
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Φ152
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Φ159
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Φ168
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One of the main advantages of cold rolled cold drawn precision steel pipe is its high dimensional accuracy. The cold rolling and cold drawing process allows for tight tolerances to be achieved, ensuring that the pipe meets the required specifications. This is particularly important in applications where precise measurements are crucial, such as in the automotive and aerospace industries.
Another advantage of cold rolled cold drawn precision steel pipe is its excellent surface finish. The cold rolling and cold drawing process helps to remove any surface imperfections, resulting in a smooth and polished surface. This not only enhances the aesthetic appeal of the pipe but also improves its Corrosion resistance. The smooth surface finish also reduces friction, making it ideal for applications where the pipe needs to slide or move smoothly.
Cold rolled cold drawn precision steel pipe also offers superior Mechanical properties compared to other types of steel pipes. The cold rolling and cold drawing process helps to refine the grain structure of the steel, resulting in improved strength and toughness.
Cold rolled cold drawn precision steel pipe also offers superior Mechanical properties compared to other types of steel pipes. The cold rolling and cold drawing process helps to refine the grain structure of the steel, resulting in improved strength and toughness.
