ERW, LSAW and SSAW Steel Pipes for Oil and Gas Pipelines

Description

Goldenman supplies welded carbon-steel line pipes for oil, natural gas, produced water, injection water, industrial fluids, structural piling and energy transportation systems.

The complete range includes:

• ERW Electric-Resistance-Welded Pipe
• HFW High-Frequency-Welded Line Pipe
• LSAW Longitudinal Submerged-Arc-Welded Pipe
• SSAW Spiral Submerged-Arc-Welded Pipe
• Black Welded Steel Pipe
• API 5L PSL 1 and PSL 2 Line Pipe
• ASTM A53 Type E Welded Pipe
• ISO 3183 Pipeline Pipe
• Sour-Service and HIC-Resistant Line Pipe
• CO₂ Transportation Pipe
• Low-Temperature and Offshore Line Pipe
• Structural and Piling Pipe
• FBE-Coated Pipe
• 3LPE- and 3LPP-Coated Pipe
• Internally Lined Pipe
• Thermal Insulated Pipeline
• Abrasion-Resistant Slurry Pipe

Welded-pipe production covers diameters from small-bore ERW pipe to 100-inch spiral-welded pipe, with Grade B through X80 materials and wall thicknesses up to 2 inches.

Product Short Description

Goldenman Welded Steel Line Pipes are manufactured from controlled steel coil or plate using high-frequency resistance welding, longitudinal submerged-arc welding or spiral submerged-arc welding.

ERW and HFW pipes provide dimensional accuracy and high production efficiency for small- and medium-diameter pipelines.

LSAW pipes provide heavy walls, high dimensional accuracy and straight longitudinal weld seams for high-pressure oil, gas, offshore and critical transmission pipelines.

SSAW pipes provide large-diameter flexibility and efficient production for water, oil, gas, piling and long-distance infrastructure projects.

Pipes are supplied bare, black-painted, galvanized or with FBE, 3LPE, 3LPP, internal epoxy, cement-mortar or thermal-insulation systems.

Product Highlights

• API Spec 5L welded line-pipe configurations
• ERW, HFW, LSAW and SSAW manufacturing methods
• ASTM A53 Type E black welded pipe
• ISO 3183 pipeline configurations
• API Grade B through X80
• PSL 1 and PSL 2 supply
• ERW/HFW diameters from 1/2 to 24 in
• LSAW diameters from 16 to 52 in
• SSAW diameters from 8 to 100 in
• LSAW wall thicknesses up to 2 in
• SSAW wall thicknesses up to 1 in
• Standard and heavy-wall pipe
• Random and fixed lengths
• Plain, beveled, threaded and coupled ends
• Longitudinal and spiral weld-seam configurations
• Full-body and weld-seam NDE
• Hydrostatic testing
• Charpy impact and DWTT testing
• Sour-service HIC and SSC testing
• CO₂ pipeline configurations
• Low-temperature toughness packages
• FBE, 3LPE and 3LPP external coatings
• Internal liquid-epoxy and flow coatings
• Cement-mortar lining
• Polyurethane thermal insulation
• Abrasion-resistant internal lining
• Material and pipe-number traceability
• EN 10204 3.1 and 3.2 documentation

General Technical Specifications

Parameter	Available Range
Product	Welded Steel Line Pipe
Manufacturing methods	ERW, HFW, LSAW and SSAW
Primary standard	API Spec 5L
Additional standards	ASTM A53, ISO 3183, EN 10217 and ASTM A252
Standard grades	Grade B, X42, X46, X52, X56, X60, X65, X70 and X80
API product levels	PSL 1 and PSL 2
ERW/HFW diameter	1/2–24 in
LSAW diameter	16–52 in
SSAW diameter	8–100 in
ERW/HFW wall thickness	2–25.4 mm
LSAW wall thickness	Up to 50.8 mm / 2 in
SSAW wall thickness	Up to 25.4 mm / 1 in
Standard lengths	6, 9, 11.8, 12 and 18 m
Project lengths	Up to 24 m
Pipe ends	Plain, beveled, threaded, coupled or grooved
Surface condition	Bare, black, varnished, galvanized or coated
External coatings	FBE, 2LPE, 3LPE, 3LPP and polyurethane
Internal linings	Liquid epoxy, flow coating, cement mortar and abrasion-resistant lining
Service	Sweet, sour, CO₂, low-temperature and offshore
NDE	UT, RT, ET, MFL and MPI
Pressure testing	Hydrostatic testing
Documentation	MTR, NDE, pressure-test and dimensional reports

Welded Pipe Manufacturing Range

Manufacturing Method	Standard Size Range	Wall Thickness	Main Grades	Principal Applications
ERW / HFW	1/2–24 in	2–25.4 mm	A, B, X42–X70	Gathering, flowlines, fuel gas, water and industrial pipelines
LSAW / SAWL	16–52 in	Up to 50.8 mm	B, X42–X80	High-pressure transmission, offshore, sour and heavy-wall pipelines
SSAW / SAWH	8–100 in	Up to 25.4 mm	B, X42–X80	Large-diameter water, oil, gas, piling and infrastructure pipelines

What Does Black Welded Steel Pipe Mean?

“Black pipe” describes the external surface condition rather than a steel grade or welding method.

Black Welded Steel Pipe normally has:

• Mill-scale surface
• Black protective varnish
• Rust-preventive oil
• No zinc coating
• Plain, beveled or threaded ends

A complete order still requires:

• Product standard
• Steel grade
• Welding method
• Outside diameter
• Wall thickness
• Pipe length
• End preparation
• Pressure and temperature requirements
• Inspection and coating requirements

Black pipe can be manufactured by ERW, HFW, LSAW or SSAW processes.

ERW Welded Steel Pipe

Electric-Resistance-Welded Pipe is formed from hot-rolled steel strip or coil.

The strip edges are heated by electrical resistance and pressed together to create a longitudinal weld seam.

The ERW process includes:

1. Coil inspection
2. Strip-edge preparation
3. Continuous roll forming
4. High-frequency heating
5. Weld-pressure application
6. External and internal bead removal
7. Online weld heat treatment
8. Sizing
9. Straightening
10. Weld-seam NDE
11. Hydrostatic testing
12. End finishing

ERW Pipe provides:

• High dimensional consistency
• Controlled outside diameter
• Controlled wall thickness
• Straight longitudinal seam
• Smooth internal bore
• Efficient production
• Broad small- and medium-diameter availability
• Compatibility with threading, grooving and beveling

HFW High-Frequency-Welded Pipe

HFW Pipe uses high-frequency electrical current to heat the strip edges before forge welding.

The process creates a solid-state longitudinal weld without adding filler metal.

HFW quality control includes:

• Strip-edge alignment
• Welding-frequency control
• Heat-input control
• Squeeze-pressure control
• Weld-bead removal
• Online seam heat treatment
• Metallographic examination
• Weld hardness control
• Full-length ultrasonic inspection
• Flattening and guided-bend tests

HFW is used for:

• Oil and gas gathering lines
• Long-distance transmission lines
• Fuel-gas distribution
• Water pipelines
• Offshore and onshore flowlines
• CO₂ transportation
• Sour-service pipelines
• Industrial pressure systems

LSAW Steel Pipe

LSAW means Longitudinal Submerged-Arc-Welded Pipe.

The pipe is formed from a single steel plate using JCOE, UOE or press-bending methods. The longitudinal seam is welded from the inside and outside using submerged-arc welding.

Goldenman’s standard LSAW range covers:

• 16–52 in nominal diameter
• Wall thicknesses up to 2 in
• Grade B through X80
• PSL 1 and PSL 2
• Sweet and sour service
• Onshore and offshore pipelines
• Standard and low-temperature operation

JCOE LSAW Manufacturing

JCOE forming consists of:

1. Steel-plate inspection
2. Plate-edge milling
3. Plate pre-bending
4. J forming
5. C forming
6. O forming
7. Tack welding
8. Internal submerged-arc welding
9. External submerged-arc welding
10. Mechanical expansion
11. Straightening
12. NDE and hydrostatic testing

Mechanical expansion improves:

• Roundness
• Outside-diameter tolerance
• Straightness
• Residual-stress distribution
• Pipe-end geometry
• Field fit-up

UOE LSAW Manufacturing

UOE forming consists of:

1. Plate edge preparation
2. U pressing
3. O pressing
4. Internal and external submerged-arc welding
5. Mechanical expansion

UOE Pipe provides:

• High dimensional accuracy
• Large-diameter capability
• Heavy-wall construction
• High-pressure performance
• Controlled ovality
• Strong collapse performance
• Stable field-welding geometry

LSAW Pipe Advantages

LSAW Pipe provides:

• One straight longitudinal seam
• High wall-thickness capability
• High dimensional accuracy
• High-pressure capacity
• Strong fracture-toughness control
• Efficient full-seam NDE
• Broad plate-grade selection
• Good pipe-end roundness
• Suitability for offshore pipelines
• Suitability for sour-service pipelines
• Suitability for high-strength X70 and X80 projects

SSAW Steel Pipe

SSAW means Spiral Submerged-Arc-Welded Pipe.

Steel coil is formed continuously at a controlled helix angle. The spiral seam is welded from both the inside and outside using submerged-arc welding.

Goldenman’s standard SSAW range covers:

• 8–100 in nominal diameter
• Wall thicknesses up to 1 in
• Grade B through X80
• Long fixed lengths
• Large-diameter transportation pipelines
• Water and infrastructure systems
• Structural and piling applications

SSAW Manufacturing Process

The SSAW process includes:

1. Coil material inspection
2. Strip leveling
3. Strip-edge milling
4. Coil joining
5. Spiral forming
6. Internal submerged-arc welding
7. External submerged-arc welding
8. Pipe cutting
9. End preparation
10. Weld-seam NDE
11. Dimensional inspection
12. Hydrostatic testing

The forming angle allows one strip width to produce multiple finished pipe diameters.

SSAW Pipe Advantages

SSAW Pipe provides:

• Large-diameter production
• Flexible diameter selection
• Long production lengths
• Efficient coil utilization
• Competitive cost for large pipelines
• Uniform spiral forming
• High axial flexibility
• Suitability for water and slurry transportation
• Suitability for structural piling
• Compatibility with external coating systems

ERW vs LSAW vs SSAW

Selection Factor	ERW / HFW	LSAW	SSAW
Raw material	Steel coil	Steel plate	Steel coil
Weld-seam direction	Longitudinal	Longitudinal	Spiral
Typical diameter	Small to medium	Medium to large	Medium to very large
Heavy-wall capability	Medium	Highest	Medium
Dimensional accuracy	High	High	Controlled
High-pressure transmission	Suitable	Preferred	Project dependent
Offshore critical service	Selected applications	Preferred	Limited project use
Water transmission	Suitable	Suitable	Preferred for large diameter
Structural piling	Suitable	Suitable	Widely used
Cost efficiency	High-volume small and medium pipe	High-performance heavy-wall pipe	Large-diameter pipe
Common grades	B–X70	B–X80	B–X80

API 5L Welded Line Pipe

API 5L Welded Line Pipe is used in pipeline transportation systems carrying:

• Crude oil
• Natural gas
• Refined petroleum products
• Produced water
• Injection water
• Carbon dioxide
• Industrial gases
• Process fluids
• Multiphase production fluids

The standard covers manufacturing, materials, dimensions, inspection, testing, marking and traceability for seamless and welded line pipe.

API 5L Grade Range

Grade	Minimum Yield Strength	Minimum Tensile Strength
Grade B / L245	245 MPa	415 MPa
X42 / L290	290 MPa	415 MPa
X46 / L320	320 MPa	435 MPa
X52 / L360	360 MPa	460 MPa
X56 / L390	390 MPa	490 MPa
X60 / L415	415 MPa	520 MPa
X65 / L450	450 MPa	535 MPa
X70 / L485	485 MPa	570 MPa
X80 / L555	555 MPa	625 MPa

The finished mechanical-property limits follow the selected grade, PSL, dimensions, heat treatment and service requirements.

API 5L PSL 1

PSL 1 provides standard technical requirements for conventional pipeline applications.

The manufacturing package includes:

• Chemical-composition control
• Mechanical-property testing
• Dimensional inspection
• Hydrostatic testing
• Product marking
• Heat traceability
• Standard NDE requirements

PSL 1 is used for:

• General oil pipelines
• Gas gathering systems
• Water lines
• Utility pipelines
• Industrial fluid transportation
• Standard onshore projects

API 5L PSL 2

PSL 2 includes enhanced control of:

• Chemical composition
• Carbon equivalent
• Yield and tensile limits
• Yield-to-tensile ratio
• Impact toughness
• Heat treatment
• Weld-seam quality
• Nondestructive inspection
• Pipe traceability
• Manufacturing records
• Lamination control

PSL 2 is used for:

• High-pressure gas pipelines
• Long-distance transmission
• Offshore pipelines
• Sour-service pipelines
• Low-temperature systems
• CO₂ pipelines
• High-consequence pipeline locations
• Critical crossings

ASTM A53 Type E Black Welded Pipe

ASTM A53 Type E covers Electric-Resistance-Welded Pipe in:

• Grade A
• Grade B
• Black finish
• Hot-dip galvanized finish
• Plain ends
• Threaded ends
• Threaded and coupled ends

ASTM A53 Type E Pipe is used for:

• Water
• Steam
• Air
• Natural gas
• Fire-protection systems
• Mechanical piping
• Industrial utility lines
• Structural applications
• General pressure service

ASTM A53 Mechanical Properties

Grade	Minimum Yield Strength	Minimum Tensile Strength
ASTM A53 Grade A	205 MPa / 30 ksi	330 MPa / 48 ksi
ASTM A53 Grade B	240 MPa / 35 ksi	415 MPa / 60 ksi

Grade B is the principal commercial grade for black welded pressure and utility pipe.

API 5L vs ASTM A53

Feature	API 5L	ASTM A53
Main product	Pipeline transportation pipe	General pressure and mechanical pipe
Welded methods	HFW, LSAW and SSAW	Type E ERW and Type F continuous weld
Grade range	Grade B–X80	Grade A and B
Product levels	PSL 1 and PSL 2	No API PSL classification
Sour-service options	Yes	Project-specific only
Offshore configurations	Yes	Not primary application
CO₂ pipeline configurations	Yes	Not primary application
Main use	Oil, gas and energy pipelines	Water, air, steam and general piping

ASTM A106 Is Not a Welded Pipe Standard

ASTM A106 covers seamless carbon-steel pipe for high-temperature service.

ASTM A106 Grade B and Grade C are supplied on Goldenman’s separate Seamless Carbon Steel Pipe page.

The Welded Steel Line Pipe range uses:

• API Spec 5L
• ASTM A53 Type E
• ISO 3183
• EN 10217
• ASTM A252

ISO 3183 Line Pipe

ISO 3183 specifies steel pipes used in petroleum and natural-gas pipeline transportation systems.

The product range includes:

• PSL 1 pipe
• PSL 2 pipe
• Seamless pipe
• HFW pipe
• SAWL pipe
• SAWH pipe
• Onshore line pipe
• Offshore line pipe
• European gas-transmission configurations

ISO 3183 orders include the required grade, delivery condition, impact properties, dimensional tolerances and inspection requirements.

Sour-Service Welded Line Pipe

Sour-service pipe is used for fluids containing hydrogen sulfide.

The material and manufacturing package includes:

• Controlled steel chemistry
• Restricted carbon equivalent
• Low sulfur and phosphorus
• Calcium-treated clean steel
• Inclusion-shape control
• Plate and coil lamination inspection
• Controlled weld hardness
• Weld heat treatment
• HIC testing
• SSC testing
• Charpy impact testing
• Full-seam ultrasonic inspection
• Material and pipe traceability

Sour-service grades include Grade B through high-strength X grades under the specified service conditions.

HIC-Resistant Pipe

Hydrogen-Induced-Cracking-resistant pipe uses steel with:

• Low sulfur content
• Controlled inclusions
• Uniform microstructure
• Restricted segregation
• Controlled hardness
• Clean plate or coil production

Testing evaluates:

• Crack length ratio
• Crack thickness ratio
• Crack sensitivity ratio
• Base metal
• Weld area
• Heat-affected zone

HIC test results are recorded by heat, plate, coil or finished pipe lot.

CO₂ Transportation Pipe

CO₂ pipeline service requires control of:

• Internal pressure
• Decompression behavior
• Fracture propagation
• Low-temperature toughness
• Impurity composition
• Water content
• Corrosion
• Weld-seam toughness
• Dimensional tolerances
• Pressure-cycle performance

Goldenman supplies HFW and LSAW Pipe for carbon-capture, utilization and storage transportation systems.

Low-Temperature Welded Pipe

Low-temperature line pipe uses:

• Controlled steel chemistry
• Fine-grain plate or coil
• Normalizing or controlled rolling
• Charpy impact testing
• DWTT testing
• Weld and heat-affected-zone toughness control
• Low-temperature coating systems

Applications include:

• Arctic pipelines
• Cold-region gas transmission
• LNG support facilities
• Offshore pipelines
• Low-temperature industrial systems

Offshore Welded Line Pipe

Offshore configurations include:

• PSL 2 materials
• Enhanced dimensional tolerances
• Low-temperature toughness
• Charpy impact tests
• DWTT testing
• Full-body ultrasonic inspection
• Full weld-seam NDE
• Pipe-end inspection
• Lamination control
• External coating preparation
• Individual pipe traceability

LSAW pipe is the primary large-diameter heavy-wall configuration for offshore flowlines, export lines and riser applications.

Structural and Piling Pipe

Large-diameter LSAW and SSAW Pipe is used for:

• Offshore platform piles
• Bridge piles
• Port and harbor construction
• Wind-turbine foundations
• Building columns
• Marine structures
• Cofferdams
• Water-intake structures
• Foundation casing
• Structural sleeves

Structural supply includes:

• ASTM A252 grades
• API 5L grades
• Custom wall thicknesses
• Long fixed lengths
• Splice preparation
• Driving shoes
• Clutch connections
• Lifting attachments
• Protective coatings

Pipe Dimensions and Wall Thickness

Welded Pipe is supplied by:

• Outside diameter and wall thickness
• Nominal pipe size and schedule
• Metric OD and wall thickness
• Project-specific design dimensions

Common wall designations include:

• Schedule 10
• Schedule 20
• Schedule 30
• Schedule 40
• Schedule 60
• Schedule 80
• Schedule 100
• Schedule 120
• Schedule 140
• Schedule 160
• STD
• XS
• XXS

API 5L pipeline projects normally specify actual outside diameter and wall thickness rather than schedule alone.

Standard Lengths

Available pipe lengths include:

• 5.8 m
• 6 m
• 9 m
• 11.8 m
• 12 m
• 18 m
• 24 m
• Single random length
• Double random length
• Fixed project length

Long LSAW and SSAW joints reduce the number of field girth welds.

End Preparations

Available pipe-end configurations include:

• Plain square-cut ends
• Beveled ends
• Threaded ends
• Threaded and coupled ends
• Grooved ends
• Expanded ends
• Reduced ends
• Flanged ends
• Welded pup-piece assemblies

Beveled Ends

Beveled pipe ends are supplied for pipeline field welding.

The end preparation includes:

• Controlled bevel angle
• Root face
• Internal deburring
• External deburring
• Pipe-end squareness
• End-roundness control
• Lamination inspection
• End-area NDE

Heavy-wall pipe can use compound or double-bevel preparations.

External Coatings

Fusion-Bonded Epoxy

FBE provides:

• Strong adhesion
• Soil-corrosion protection
• Chemical resistance
• Cathodic-protection compatibility
• Smooth external surface

Three-Layer Polyethylene

3LPE consists of:

1. FBE primer
2. Adhesive intermediate layer
3. Polyethylene outer layer

3LPE provides:

• Long-term corrosion protection
• Mechanical impact resistance
• Moisture resistance
• Soil-stress resistance
• Buried-pipeline durability

Three-Layer Polypropylene

3LPP provides:

• Higher operating-temperature resistance
• Mechanical strength
• Chemical resistance
• Offshore durability
• High-temperature buried-pipeline protection

Polyurethane Coating

Polyurethane provides:

• Impact resistance
• Abrasion resistance
• Water resistance
• Fast curing
• Protection for directional drilling and marine service

Internal Linings

Available internal systems include:

• Liquid epoxy
• Flow coating
• Cement-mortar lining
• Polyurethane lining
• Abrasion-resistant lining
• Glass-flake coating
• Corrosion-resistant alloy lining

Internal flow coatings reduce:

• Surface roughness
• Pressure loss
• Product contamination
• Internal corrosion
• Deposit accumulation
• Pumping-energy demand

Thermal Insulated Pipeline

Insulated welded pipe consists of:

• Steel service pipe
• Corrosion-protection layer
• Polyurethane insulation
• Polyethylene or steel jacket
• End-seal system
• Leak-detection components

Applications include:

• District heating
• Heavy-oil pipelines
• Hot-water systems
• Steam transportation
• Wax-sensitive crude oil
• Cold-region pipelines

Abrasion-Resistant Pipe

Abrasion-resistant pipeline systems are used for:

• Mining slurry
• Tailings
• Sand-water mixtures
• Coal slurry
• Dredging
• Cement transport
• Ash handling

Available internal protection includes:

• Hardened alloy lining
• Ceramic lining
• Polyurethane lining
• Rubber lining
• Wear-resistant weld overlay

Welding Quality Control

Weld-seam quality control includes:

• Weld parameter monitoring
• Edge alignment
• Heat-input control
• Filler-wire verification
• Flux control
• Weld-bead geometry inspection
• Weld hardness testing
• Metallographic examination
• Macro examination
• Tensile testing
• Guided-bend testing
• Flattening testing
• Full-length ultrasonic testing
• Radiographic testing

Nondestructive Examination

Available inspection methods include:

• Plate or coil ultrasonic testing
• Weld-seam ultrasonic testing
• Full-body ultrasonic testing
• Radiographic testing
• Digital radiography
• Eddy-current testing
• Magnetic-flux-leakage testing
• Magnetic-particle inspection
• Pipe-end lamination inspection
• Visual and dimensional inspection

LSAW weld seams undergo internal and external inspection along their complete length.

SSAW weld seams undergo continuous spiral-seam inspection.

ERW and HFW seams undergo online electromagnetic or ultrasonic inspection.

Hydrostatic Testing

Every pressure-service pipe undergoes the specified hydrostatic test.

The test program controls:

• Test pressure
• Pressure hold time
• Pressure-gauge calibration
• External leakage
• Weld-seam leakage
• Permanent deformation
• Pipe identification
• Electronic test records

The test pressure is determined from the pipe grade, OD, wall thickness, standard and ordered product level.

Mechanical Testing

Mechanical testing includes:

• Tensile testing
• Weld tensile testing
• Flattening testing
• Guided-bend testing
• Charpy V-notch testing
• Drop-weight tear testing
• Hardness testing
• Macro examination
• Metallographic examination
• Fracture-toughness testing
• HIC testing
• SSC testing

Dimensional Inspection

Dimensional inspection covers:

• Outside diameter
• Wall thickness
• Ovality
• Circumference
• Straightness
• Length
• Pipe-end roundness
• End squareness
• Bevel geometry
• Weld-seam height
• Weld-seam offset
• Internal bore
• Unit weight

Manufacturing Process

Goldenman Welded Line Pipe production includes:

1. Plate or coil material verification
2. Heat and plate-number assignment
3. Lamination inspection
4. Edge milling or trimming
5. Forming
6. Tack welding
7. Internal and external welding
8. Weld-seam heat treatment
9. Mechanical expansion or sizing
10. Straightening
11. End cutting
12. Weld-seam NDE
13. Full-body inspection
14. Mechanical testing
15. Hydrostatic testing
16. Pipe-end beveling
17. End-area NDE
18. Dimensional inspection
19. Surface preparation
20. Coating or lining
21. Permanent marking
22. Documentation review
23. Export loading

Product Marking

Each pipe is marked with:

• Goldenman identification
• Product standard
• Steel grade
• PSL level
• Manufacturing method
• Outside diameter
• Wall thickness
• Pipe length
• Heat number
• Plate or coil number
• Pipe number
• Hydrostatic-test identification
• NDE identification
• Coating type
• Sour-service designation
• Manufacturing date

Product Documentation

The documentation package includes:

• Certificate of Conformity
• Material Test Certificate
• EN 10204 3.1 certificate
• EN 10204 3.2 certificate
• Chemical-composition report
• Carbon-equivalent report
• Mechanical-property report
• Heat-treatment record
• Charpy impact-test report
• DWTT report
• HIC test report
• SSC test report
• Plate or coil UT report
• Weld-seam UT report
• Radiographic inspection report
• Hydrostatic-test report
• Dimensional inspection report
• Pipe-end inspection report
• Coating inspection report
• Holiday-detection report
• Pipe and heat traceability list
• Packing and loading list
• Third-party inspection report

Frequently Asked Questions

What types of Welded Steel Pipe are available?

Goldenman supplies:

• ERW Pipe
• HFW Pipe
• LSAW Pipe
• SSAW Pipe

What sizes are available?

The complete range covers:

• ERW/HFW: 1/2–24 in
• LSAW: 16–52 in
• SSAW: 8–100 in

What is the difference between black pipe and galvanized pipe?

Black pipe has a bare, oiled, varnished or black-painted surface.

Galvanized pipe has a zinc coating for increased atmospheric and water-corrosion protection.

Is black pipe a steel grade?

No.

Black describes the surface finish. The complete pipe grade can be ASTM A53 Grade B, API 5L Grade B, X42, X52 or another specified grade.

What is the difference between ERW and HFW?

ERW is the general electric-resistance-welding category.

HFW uses high-frequency current to heat the strip edges before forge welding and is the principal modern process for API 5L electric-welded line pipe.

What is the difference between LSAW and SSAW?

LSAW uses one straight longitudinal submerged-arc weld seam and steel plate.

SSAW uses a continuous spiral submerged-arc weld seam and steel coil.

Which process is used for high-pressure pipelines?

LSAW is used for large-diameter, heavy-wall and high-pressure transmission pipelines.

HFW is used for small- and medium-diameter high-pressure line pipe.

Which process is used for very large diameters?

SSAW provides diameters up to 100 inches for water, oil, gas, piling and infrastructure projects.

Is ASTM A106 Welded Pipe available?

ASTM A106 is a seamless-pipe standard.

ASTM A106 products are supplied under Goldenman’s Seamless Carbon Steel Pipe range.

What is the maximum LSAW wall thickness?

Goldenman supplies LSAW Pipe with walls up to 2 inches / 50.8 mm.

What is the maximum SSAW wall thickness?

Goldenman supplies SSAW Pipe with walls up to 1 inch / 25.4 mm.

Are X70 and X80 pipes available?

Yes.

LSAW and SSAW Line Pipes are supplied through API 5L X80.

Are sour-service pipes available?

Yes.

Sour-service configurations include controlled hardness, HIC testing, SSC testing, impact testing and enhanced NDE.

Are CO₂ pipeline pipes available?

Yes.

HFW and LSAW configurations are supplied for carbon-capture, utilization and storage transportation systems.

Are FBE and 3LPE coatings available?

Yes.

Available external coatings include FBE, 2LPE, 3LPE, 3LPP and polyurethane.

Are internal coatings available?

Yes.

Internal systems include liquid epoxy, flow coating, cement mortar, polyurethane and abrasion-resistant linings.

Can fixed lengths be supplied?

Yes.

Fixed pipe lengths up to 24 m are supplied according to the manufacturing method and transportation plan.

Information Required for Quotation

Please provide:

• Product standard
• API 5L grade
• PSL 1 or PSL 2
• ERW, HFW, LSAW or SSAW
• Outside diameter
• Wall thickness
• Pipe length
• Quantity
• Operating fluid
• Design pressure
• Design temperature
• Minimum design temperature
• Onshore or offshore application
• Sweet or sour service
• H₂S concentration
• CO₂ concentration
• HIC testing
• SSC testing
• Charpy impact-test temperature
• DWTT requirement
• Hydrostatic-test requirements
• NDE requirements
• Plain or beveled ends
• Bevel specification
• External coating
• Internal lining
• Field-joint coating
• Dimensional tolerances
• Pipe-end tolerances
• EN 10204 certificate type
• Third-party inspection
• Destination country
• Delivery schedule

Request a Technical Quotation

Goldenman supplies ERW, HFW, LSAW and SSAW Welded Steel Line Pipes for oil, gas, water, CO₂, offshore, structural and industrial pipeline projects.

The complete range covers:

• ERW and HFW Pipe from 1/2 to 24 in
• LSAW Pipe from 16 to 52 in
• SSAW Pipe from 8 to 100 in
• API 5L Grade B through X80
• PSL 1 and PSL 2
• LSAW walls up to 2 in
• SSAW walls up to 1 in
• Sweet-, sour-, CO₂- and low-temperature service
• FBE, 3LPE, 3LPP and internal lining systems

Complete orders are supplied with material traceability, mechanical-property reports, weld-seam NDE, hydrostatic testing, dimensional inspection and coating documentation.

Email: info@goldenman.com