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.

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 

1. Line Pipes
API 5L PSL1/PSL 2 Line Pipe: Gr. B X42, X46, X52, X56, X60, X65, X70, X80/BM.X42M,X46M,X52M,X60M,X65M,X70,X80M
ISO 3183-1/2 Petroleum and Natural Gas Industries-Steel Pipe for Pipelines-L240M,L290M,L320M,L360M,L390M,L415M,L450M,L485M,L555M,L690M
ISO 3183-3 Petroleum and Natural Gas Industries Steel Pipe for Pipelines-L245NC / L245NCS,L290NC / L290NCS, L360NC / L360NCS, L290MC / L290MCS, L360MC / L360MCS, L415MC / L415MCS, L450MC / L450MCS, L485MC / L485MCS, L555MC
AS2885 Pipelines-Gas and liquid petroleum Part 1: Design and Construction
AS 1163 Steel Pipe
DIN 2470-1 Steel gas pipelines for permissible service pressures up to 16 bar
DIN 2470-2 Steel gas pipelines for permissible service pressures exceeding 16 bar
BS 3601-1 Carbon steel pipes and tubes with specified room temperature properties for pressure purposes
BS 3602-2 Specification for steel pipes and tubes for pressure purposes: carbon and carbon manganese steel with specified elevated temperature properties. Part 2: Submerged arc welded tubes
BS 6323 Seamless and welded steel tubes for automobile mechanical and general engineering purposes. Part 1: General requirements. Part 7: Specific requirements for submerged arc welded steel tube
EN 10208-1 Non alloy steel tubes with specified room temperature properties.
EN 10208-2 Steel Pipes for Pipelines for Combustible Fluids-Technical Delivery Conditions-L245MB,L290MB,L320MB,L360MB,L390MB,L415MB,L450MB,L485MB,L555MB
EN 10208-3  Non alloy and alloy fine grain steel tubes
EN 10217-1/3 Welded steel tubes for pressure purposes 
CSA Z245.1   Steel Pipe
BS 3602 Steel Pipe and Tubes for Pressure Proposes Carbon Steel: High Duties.
IPS-M-PI-190 Material And Equipment Standard for Line Pipe
KOC-MP-019 KOC Standard for Submerged-Arc Welded (SAW) Pipe to API 5L
NACE MR 0175/ISO 15156-2  Petroleum and Natural Gas Industries – Materials for Use in H2S Containing Environments in Oil and Gas Production. Part 2. Cracking resistant Carbon and Low Alloy Steels, and the Use of Cast Irons. 
NACE TM 0177 Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking in Hydrogen Sulfide (H2S) Environments
NACE TM 0284 Standard Test Method - Evaluation of Pipeline and Pressure Vessel Steels for Resistance to Hydrogen-Induced Cracking
DEP 31.40.20.35-Gen Line pipe for non-critical service (amendments/supplements to ISO 3183-1)       
DEP 31.40.20.37-Gen Linepipe for critical service (amendments/supplements to ISO 3183-3)        
DEP 31.40.40.38-Gen Hydrostatic pressure testing of new pipelines      
DEP 31.40.20.35-Gen Line pipe for non-critical service (amendments/supplements to ISO 3183-1)       
DEP 31.40.60.11-Gen Pipeline leak detection     
DEP 31.40.60.12-Gen Pipeline Repairs (supplements to ANSI/ASME B31.4 and B31.8)       
DEP 61.40.20.30-Gen Welding of pipelines and related facilities (amendments/supplements to ANSI/API STD 1104)  
DEP 31.40.50.30-Gen  Precommissioning of pipelines
GOST-K56,K60,K65  Steel Pipe
GOST 20295 Steel welded pipes for main gas and oil pipelines
API 5L: TUBOS PARA CONDUÇÃO DE PRODUTOS PETROLÍFEROS.
API 5LX: TUBOS PARA CONDUÇÃO DE PRODUTOS PETROLÍFEROS COM EXIGÊNCIAS ESPECIAIS
API 5A: TUBOS DE PERFURAÇÃO, REVESTIMENTO E BOMBEAMENTO PARA POÇOS PETROLÍFEROS CASING, TUBING, DRILL PIPE.
API 5AX: TUBOS DE PERFURAÇÃO, REVESTIMENTO E BOMBEAMENTO PARA POÇOS PETROLÍFEROS COM EXIGÊNCIAS ESPECIAIS (HIGH-STRENGTH CASING,
TUBING, DRILL PIPE).
API 5AC: TUBOS DE REVESTIMENTO E DE BOMBEAMENTO PARA POÇOS PETROLÍFEROS, COM PROPRIEDADES RESTRITAS: GRADE C-75, CASING E TUBING.
API  5B: ESPECIFICAÇÃO DE ROSCAS, CALIBRES E INSPEÇÃO DE ROSCAS PARA CASING, TUBING E LINE PIPE.

2. Pipe for General Uses
ASTM A134 Electric Fusion-(Arc) Welded Steel Plate Pipe
ASTM A139 CHIMNEYS AND VENTILATION DUCTS for air and dust filtering systems, and smoke evacuation, PILLARS for ski chair-lifts and bridges
ASTM A155 Electric Fusion Welded Steel Pipe for High Temperature Service
ASTM A513
ASTM A671 Electric Fusion Welded Steel Pipe for Atmospheric and Lower Temperature
ASTM A672 Electric-fusion-welded steel pipe for high-pressure service at moderate temperatures
AWWA C200-97: Steel Water Pipe-6 In. (150 mm) and Larger
AWWA C206-97: Field Welding of Steel Water Pipe
AWWA C207-01: Steel Pipe Flanges for Waterworks Service- Sizes 4 In. Through 144 In. (100 mm Through 3,600 mm)
AWWA C208-01: Dimensions for Fabricated Steel Water Pipe Fittings
BS 2059 Part I & II Gr. 320, Gr. 360
BS 3601 Steel Pipe and Tubes for Pressure Proposes Carbon Steel: Ordinary Duties- Gr. 360,Gr. 430,
BS 7191 All Specification for Weldable Structure Steels for Fixed Offshore Structures
DIN 1615 Welded circular tubes of non-alloy steel without special quality requirements.
DIN 1626 Welded circular tubes of non-alloy steel with special quality requirements-St. 37.0,St44.0, St.52.0
DIN 1628 Welded circular tubes of non-alloy steel with very high quality requirements- St. 37.4
DIN 2458 Plain end welded steel tubes, dimensions and conventional masses per unit length- DIN 2470 Part 1 St. 37.0,St44.0, St.52.0
DIN 2460 Steel tubes for waterworks services DIN 2460
DIN 17120 Welded structural steel circular tubes for structural engineering purposes
DIN 17172 Steel pipes for pipelines for the transport of combustion fluids and gases--DIN 2470 Part II St. E210-7, E240-7,E290-7, St. E 320-7,St.E 360-7
DIN 17174 Welded circular steel tubes for low temperatures
DIN 17177 St. 37.8, St. 42.8
EN 10219-1, 2Cold formed welded structural hollow sections of non-alloy and fine grain steels. Part 1: Technical delivery requirements. Part 2: Dimensions
EN 10220 Seamless and welded steel tubes.
EN 10224 Steel pipes, joints and fittings for the conveyance of aqueous liquids including potable water
EN 10296-1 Welded steel tubes for mechanical and general engineering purposes – TDR. Part 1: Non alloy and alloy steel tubes
JIS G 3444 STK 90,400,490,500,540 Carbon Steel Tubes for General Structural Purpose
JIS G3452
JIS G 3457 Arc Welded Carbon Steel Pipe- STPY 400
KS D 3566 Carbon Steel Tubes for General Structural Purpose- STK 90,400,490,500,540
KS D 3583 Arc Welded Carbon Steel Pipe- SPW 400

3. Structural Pipe
API 2B Fabricated Structural Steel Pipe
ASTM A252 FOUNDATION PILES for soil consolidation, marine wharfs
ASTM A53 A/B
ASTM A211-85
ASTM A178/A214/A226 Gr. A
ASME SA211
ASTM A252 FOUNDATION PILES for soil consolidation, marine wharfs,
AS1397
AS1579 Arc-Welded Steel Pipes and Fittings for Water and Wastewater
AS1594.1-250/350
AS/NZS 1163 Structural Steel Hollow Sections- C250/L0, C350/L0,C450/L0
AS3678.1-350,
AS3679.1-250,
CF1030 BRIGHT,
AS 2159 Piling Design and Installation
AS 812  Bored Piles
JIS G 3444 Carbon Steel Tubes for General Structural Purpose- STK 90,400,490,500,540
JIS A5525 Steel Pipe Pile
 
4.Submarine (Offshore) Pipeline System
DNV OS-F101 Submarine Pipeline Systems-SAWL 245,SAWL290,SAWL 320,SAWL 360,SAWL 415,SAWL 450,SAWL 485,SAWL 555,
AS 2885-1:1997
AS 2885-2:2002,
AS 2885-3:2001,
AS 2885-4:2003,
AS/NZS 2885-5:2002,
ASME B31.4:1998,
ASME B31.8:2000,
BS  8010-1:1989,
BS  8010-2.8:1992,
BS  8010-3:1993,
CSA-Z 662:2003,
DIN 2470-2:1983,
EN 1594:2000,
EN 14161:2003,
ENV 1993-4-3:1999,
ISO 13623:2000,
ISO 3183-3:1999,
NEN 3650-1-K1-K6:2003,
NEN 3650-2-K1-K6:2003,
NHT-R51-00002 03M:2002,
NHT-R51-00016 03M:2002,
NHT-S51-00021 02M:2002,
SNiP 2.05.06:1985,
VSN 51-9:1986,
VSN 51-3/2.38:1985
GOST 10705/10704
GOST 1050-08SP, 10SP, 20SP
GOST 19282-09G2S
STN 42 0144
STN 42 5738
UNI 8488

The mechanical tests provided include

Tensile testing - up to 100kN
Hardness testing - Vickers, Rockwell, Brinell & Leeb (portable)
Charpy impact testing - down to -128° C
Bend tests
Macro examination

Tensile Testing to: AS 1391, AS 2205.2, AS 1855, ASTM E8, ASTM A370, ISO 6892, ASME IX QW 150, EN 895, API 5L, AS 1397, AS 3678, AS 3679.1, AS 3992, AS 1163, AS 2885.2, AS 1554 Series, AWS series, ISO 15614 series, IS0 9956, ISO 9606 series, ISO 5817 series and other Australian and International standards.

Hardness Testing to: AS 1815, ISO 6508.1, ASTM E18, ASTM A370, ISO 6506, AS 1816, ASTM E10, ISO 6507, AS 1817, ASTM E92, ASTM E384, ASTM A956, ASTM E110, AS 1982 and other Australian and International standards.

Charpy Impact Tests to -128C: AS 2205.7, ASTM E23, ASTM A370, ASME IX, AS 2885.2, AS 1554 series, AS 3992, AS 3678, AS 3679.1, AS 3679.2, AS 1163, ISO 15614 series, DIN EN 875, DIN EN 10045.1, AWS series, ISO 9956, ISO 9606 series and other Australian and International standards.

Fracture Tests (Nick & Fillet Breaks) to: AS 2205.4.1, AS 2205.4.2, ISO 9017, ASME IX, AS 1665 and AS 2885.2 and other Australian and International standards.

Macro Tests: AS 3992, AS 4037, AS 2885.2 Tier 2, AS 1554.1 to .6, ASME IX, AWS D1.1 to .6, ISO 15614.1 to .8 & ISO 15614.11 to .13, ISO 9606.1 to .5, EN 287.1 to .4, EN 288.1 to .4, API 650 and other Australian and International standards.