CASING TUBE,CASING PIPE
TUBING AND CASING PIPE
Casing Pipe are made from carbon steel. Oil casing tubing is used to extracting petroleum and natural gas from a well. Casing serves as wall of well.
Tolerance
|
Item
|
Tolerance
|
|
|
Out Diameter
|
|
D≤101.6mm+-0.79mm
|
|
D≥114.3mm+1.0%D-5%D
|
||
|
Coupling
|
+-1%D
|
|
|
WT
|
0-12.5%t
|
|
|
Weight
|
Single Lengths
|
+6.5%-3.5%
|
|
Carload Lots
|
0-1.75%
|
|
Mechanical Properties
|
Grade
|
Yield Strength
|
Tensil Strength
|
Hardness
|
Allowable Hardness
Variation
|
|||||
|
Min
|
Max
|
Min
|
Max
|
||||||
|
Psi
|
Mpa
|
Psi
|
Mpa
|
Psi
|
Mpa
|
Hrc
|
Bhn
|
Hrc
|
|
|
J55
|
55,000
|
379
|
80,000
|
552
|
75,000
|
517
|
-
|
-
|
-
|
|
K55
|
55,000
|
379
|
80,000
|
552
|
95,000
|
655
|
-
|
-
|
-
|
|
N80
|
80,000
|
552
|
80,000
|
758
|
100,000
|
689
|
-
|
-
|
-
|
Chemical Composition (%)
|
Grade
|
Chemical Composition
|
|||||||||
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Cu
|
V
|
Als
|
|
|
J55/K55
(37Mn5)
|
0.34-0.39
|
0.20-
0.35
|
1.25-
1.50
|
≤
0.02
|
≤
0.015
|
≤
0.15
|
≤
0.20
|
≤
0.20
|
|
≤
0.02
|
|
N80
(36Mn2V)
|
0.34-
0.38
|
0.25-
0.40
|
1.45-
1.70
|
≤
0.02
|
≤
0.015
|
≤
0.15
|
≤
0.20
|
≤
0.20
|
0.11-
0.16
|
≤
0.02
|
.
Related post
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May 6, 2015 API 5CT CASING PIPE DESIGN & OIL CASING DESIGN
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May 6, 2015 K55 Petroleum Casing Pipe
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3 Comments
straight seam welded steel pipe, ASTM straight seam welded steel pipe,OD:203-820mm WT:3.5-35mm,Certification:ISO9002, ISO9001-2000,API 5L API 5CT TS16949.
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