 |
BizVerify |
|
| Metals International Limited |
| Verified By : SMR(HK) |
| Verified Date : 2011-03-25 |
|
 |
|
|
|
|
|
|
|
|
|
| Concrete Weight Coated (CWC) Steel Pipe-DNV OS-F-101 |
|
|
| Model No.︰ | - |
| Brand Name︰ | - |
| Country of Origin︰ | - |
| Unit Price︰ | - |
| Minimum Order︰ | - |
|
|
|
|
|
|
OD
|
W/T
|
|
inch
|
mm
|
inch
|
|
8-5/8
|
219.1
|
0.203-0.344
|
|
10-3/4
|
273.1
|
0.203-0.500
|
|
12-3/4
|
323.9
|
0.219-0.500
|
|
14
|
355.6
|
0.219-0.562
|
|
16
|
406.4
|
0.219-0.562
|
|
18
|
457
|
0.219-0.562
|
|
20
|
508
|
0.219-0.562
|
|
22
|
559
|
0.219-0.625
|
|
24
|
610
|
0.219-0.625
|
|
26
|
660
|
0.219-0.625
|
|
28
|
711
|
0.219-0.625
|
|
30
|
762
|
0.219-0.625
|
|
32
|
813
|
0.250-0.751
|
|
34
|
864
|
0.250-0.751
|
|
36
|
914
|
0.250-0.751
|
|
38
|
965
|
0.250-0.751
|
|
40
|
1016
|
0.250-0.751
|
|
42
|
1067
|
0.250-0.751
|
|
44
|
1118
|
0.250-0.751
|
|
46
|
1168
|
0.250-0.751
|
|
48
|
1219
|
0.250-0.751
|
|
52
|
1321
|
0.250-0.751
|
|
56
|
1422
|
0.250-0.751
|
|
60
|
1524
|
0.250-0.751
|
|
64
|
1626
|
0.365-0.851
|
|
|
|
|
| Specifications︰ | DNV-OS-F101 Submarine Pipeline System
ASTM C171 Specification for Sheet Material for Coating Concrete
BS EN 12620 Aggregates for Concrete
ISO 21809-5:2009, Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 5:External concrete coating. The standards covers all the current concrete-coating processes-side wrap( or compression wrap) process,concrete spraying (or impingenment), form (or pour) process and slip-forming process,all of them using primary steel reinforcement through a galvanized steel mesh or a rebar cage.It defines the requirements for the pipe cutback area,steel reinforcement positioning,anode installation and acceptable cutback methods.
ASTM C42 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
ASTM C642 Standard Test Method for Specific Gravity, Absorption and Voids in Hardened Concrete
ASTM C87 Standard Test Method for Effect of Impurities in Fine Aggregate on Strength of Mortar BS 1881 Methods of Testing Concrete
BS 3148 Methods of Test for Water for Making Concrete
BS 4482 Hard Drawn Mild Steel Wire for the Reinforcement of Concrete
BS 4483 Specification for Steel Fabric for the Reinforcement of Concrete
BS 4449 Specification for Carbon Steel Bars for Reinforcement of Concrete
ISO 4012 Determination of Compressive Strength of Test Specimen
|
| Standard Met︰ | Concrete weight coating is applied to the exterior of steel pipe to provide negative buoyancy or mechanical protection for submarine pipelines. Ideal for pipe ranging from 4 to 48 inched OD or greater. It can be applied over most pipe coatings. The concrete formulation can be tailored to any specified density specification. Typical product formulations are 140, 165 and 190 pounds-per-cubic-foot (nominal), but, greater densities are also available. Thicknesses can be applied from one to eight inches. Concrete compressive strengths range from 3000 psi and greater; reinforcing galvanized wire is available in several mesh and gauge values, with single or multiple feeds. Embedded depth controlled for additional strength and stability.
Application: Accurately proportioned quantities of cement, iron ore, sand and/or granite aggregate are mixed together to yield the specified density. Controlled wire placement during concrete buildup achieves the specified wire depth within the coating. Weighing verifies that each joint meets project-specific gravity requirements. Concrete ends are cleaned and excess wire is trimmed. After curing, joints are stockpiled and ready for loadout.
|
|
|
| Select Image |
 |
|
|
|
|
|
|
|
|
|
|
