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ASTM A928 Duplex Stainless Steel EFW Pipes / ASTM A928 Super Duplex Stainless Steel EFW Pipes

Duplex Stainless Steel EFW Pipes, Super Duplex Stainless Steel EFW Pipes, ASTM A928 Duplex Stainless Steel EFW Pipes, ASME SA928 Duplex Stainless Steel EFW Pipes, ASTM A928 Super Duplex Stainless Steel EFW Pipes

Manufacturing ASTM A928 Duplex Stainless Steel EFW Pipess in A928 Class 1, 2, 3, 4, 5 in Grades UNS S32205, UNS S31803, UNS S32750, UNS S32760, SAF 2205, SAF 2507, ZERON 100 etc.

Savoy Piping Inc., we carry a full inventory of ASTM A928 Duplex Stainless Steel EFW Pipe and Supply ASTM A928 Duplex Stainless Steel EFW Pipe their microstructures consist of a mixture of austenite and ferrite phases.As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels.

We Supply ASTM A928 Duplex Stainless Steel EFW Pipes in Specification ASME SA / ASTM A789, A790, A928 and Grades UNS S32205, UNS S31803, UNS S32750, UNS S32760, SAF 2205, SAF 2507 etc. The grade indicates the testing methods required for a given application.

Savoy Piping Inc. specializes in ASTM A928 Duplex Stainless Steel EFW Pipe with years of Experience in Manufacturing ASTM A928 Duplex Stainless Steel EFW Pipe. we offer high quality, lower cost but the best service. As a result to that our ASTM A928 Duplex Stainless Steel EFW Pipes export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.

 Duplex Stainless Steel Pipes, Duplex Stainless Steel Seamless Pipes, Duplex Stainless Steel Welded Pipes, Duplex Stainless Steel EFW Pipes, Duplex Stainless Tubes, Duplex Stainless Steel Tubing, Super Stainless Steel Pipes, UNS S32205, UNS S31803, UNS S32750, UNS S32760, UNS S31254, SAF 2205, SAF 2507, SMO 254, 6MO, 6 Moly, ZERON 100, ASTM A789, ASTM A790, ASTM A928

ASTM A928 Duplex Stainless Steel EFW Pipes Manufacturer, Stockholder and Supplier

Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. The picture shows the yellow austenitic phase as “islands” surrounded by the blue ferritic phase. When duplex stainless steel is melted it solidifies from the liquid phase to a completely ferritic structure. As the material cools to room temperature, about half of the ferritic grains transform to austenitic grains (“islands”). The result is a microstructure of roughly 50% austenite and 50% ferrite.

Whilst duplex stainless steel are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steel. However, the corrosion resistance of the least resistant Duplex stainless steel is greater than that for the most commonly used grades of stainless steel, i.e. 304 and 316.

Duplex stainless steel are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.

ASTM A928 Duplex Stainless Steel EFW Pipe specification covers standard requirements for ferritic/austenitic (duplex) stainless steel pipe that is electric fusion welded with addition of filler metal suitable for corrosive service. Heat treatment shall be performed after welding and in accordance with specified temperature and quench conditions.

Several grades of ferritic/austenitic steel shall conform to the requirements of the applicable specification and grade designation. Heat and product analyses shall be conducted and shall conform to the requirements for the particular grade. The plate used in making the pipe shall conform to the required tensile properties. The steel pipe shall undergo several mechanical tests including transverse tension test, transverse guided-bend test, nondestructive test, hydrostatic test, and nondestructive electric test.

Five classes of pipe are covered as follows:
Class 1—Pipe shall be double welded by processes using filler metal in all passes and shall be radiographed completely.
Class 2—Pipe shall be double welded by processes using filler metal in all passes. No radiograph is required.
Class 3—Pipe shall be single welded by processes using filler metal in all passes and shall be radiographed completely.
Class 4—Same as Class 3, except that the weld pass exposed to the inside pipe surface is permitted to be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).
Class 5—Pipe shall be double welded by processes using filler metal in all passes and shall be spot radiographed.

ASTM A928 Duplex Stainless Steel EFW Pipes

ASTM A928 Duplex Stainless Steel EFW Pipes Specification ASTM A789, ASTM A790, ASTM A928, ASME SA789, ASME SA790, ASME SA928
ASTM A928 Duplex Stainless Steel EFW Pipes Class ASME SA / ASTM A928 CLASS 1 , ASME SA / ASTM A928 CLASS 2, ASME SA / ASTM A928 CLASS 3, ASME SA / ASTM A928 CLASS 4, ASME SA / ASTM A928 CLASS 5
ASTM A928 Duplex Stainless Steel EFW Pipes Grades UNS S32205, UNS S31803, UNS S32750, UNS S32760, SAF® 2205, SAF® 2507, FERRINOX® 225, AMINOX® 225, ZERON® 100
ASTM A928 Duplex Stainless Steel EFW Pipes Type Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish
ASTM A928 Duplex Stainless Steel EFW Pipes Outer Diameter Size Seamless - 1/2" NB TO 18" NB
Welded / ERW- 1" NB TO 16" NB
EFW - 8" NB TO 110" NB
ASTM A928 Duplex Stainless Steel EFW Pipes Wall Thickness Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness)
ASTM A928 Duplex Stainless Steel EFW Pipes Length 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size.
ASTM A928 Duplex Stainless Steel EFW Pipes Ends Plain Ends / Beveled Ends
ASTM A928 Duplex Stainless Steel EFW Pipes Delivery Conditions As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw, Bright Annealed
ASTM A928 Duplex Stainless Steel EFW Pipes Coating Electropolish, Mechanical Polish, Satin Finish, Passivated
ASTM A928 Duplex Stainless Steel EFW Pipes Other Testing Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc
ASTM A928 Duplex Stainless Steel EFW Pipes Dimension All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME
ASTM A928 Duplex Stainless Steel EFW Pipes Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
ASTM A928 Duplex Stainless Steel EFW Pipes Packaging Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
ASTM A928 Duplex Stainless Steel EFW Pipes Shipment & Transportation By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
ASTM A928 Duplex Stainless Steel EFW Pipes Material Test Certificate Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

CHEMICAL AND Mechanical Properties OF ASTM A928 Duplex Stainless Steel EFW Pipes

Trade Name UNS Super Duplex Industry Specifications Chemical Composition Min.Tensile
(KSI)
Min.Yield
(KSI)
Elongation
%
SAF 2205®
22Cr
UNS S31803 ASME SA-182 (F51), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F51),A240, A276, A479, A789, A790, A815, A928, A988
SAE
J405
C 0.30 max
Cr 21.0-23.0
Mn 2.00 max
Mo 2.50-3.50
N 0.08-0.20
Ni 4.50-6.50
P 0.030 max
S 0.020 max
Si< 1.00 max
90 65 25
SAF 2205®
22Cr
UNS S32205 ASM SA-182 (F60), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F60), A240, A276, A479, A480, A798, A790,
A815, A928, A988
SAE
J405
C 0.30 max
Cr 22.0-23.0
Mn 2.00 max
Mo 3.00-3.50
N 0.14-0.20
Ni 4.50-6.50
P 0.030 max
S 0.020 max >
Si 1.00 max
95 65 25
SAF 2507® UNS S32750 ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988
SAE J405
C 0.030 max
Cr
24.0-26.0
Cu 0.5 max
Mn 1.20 max
Mo 3.0-5.0
N 0.24-0.32
Ni 6.0-8.0
P 0.035 max
S 0.020 max
Si 0.8 max
116 80 15
ZERON® 100 UNS S32760 ASTM A182 F55, A240, A276, A314, A473, A479, A789, A790, A815, A928, A988
SAE J405
C 0.03 max
Cr
24.0-26.0
Cu 0.5-1.0
Mn 1.0 max
Mo 3.0-4.0
N 0.2-0.3
Ni 6.0-8.0
P 0.03 max
S 0.01 max
Si 1.0 max
W 0.5-1.0
109 80 25

Corrosion Resistance of Duplex stainless steel

Duplex stainless steel are extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulphide environments, Duplex stainless steel exhibit very high resistance to stress corrosion cracking.

The super duplex grades are even more resistant to corrosion.

Heat Resistance of Duplex stainless steel

The high chromium content of Duplex stainless steel that p rotects against corrosion, causes embrittlement at temperatures over about 300°C.

At low temperatures duplex stainless steels have better ductility than the ferritic and martensitic grades. Duplex grades can readily be used down to at least -50°C.

Fabrication of Duplex stainless steel

Fabrication of all stainless steel should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use. These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.

Heat Treatment of Duplex stainless steel

Duplex stainless steel cannot be hardened by heat treatment. They can however be work hardened.

Solution treatment or annealing can be done by rapid cooling after heating to around 1100°C.

Machinability

Although machinable, the high strengths of Duplex stainless steel makes machining difficult. As an example, machining of 2205 is around 20% slower than for 304.

Machining can be enhanced by using the following rules:

  • Cutting edges must be kept sharp. Dull edges cause excess work hardening.
  • Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material.
  • Chip breakers should be employed to assist in ensuring swarf remains clear of the work
  • Low thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants and lubricants are necessary and must be used in large quantities.

Welding of Duplex stainless steel

Duplex stainless steel have good weldability. All standard welding processes can be used. They are not quite as easily welded as the austenitic grades but low thermal expansion in duplex grades reduces distortion and residual stresses after welding. The recommended filler material for 2205 stainless steel is 2209.

ASTM A928 Duplex Stainless Steel EFW Pipes Apllication

The Duplex Stainless Steel EFW Pipes is used in the following applications:-

  • Chemical Processing, Transport and Storage
  • Oil and Gas Exploration and Offshore Rigs
  • Mil and Gas Refining
  • Marine Environments
  • Pollution Control Equipment
  • Pulp & Paper Manufacturing
  • Chemical Process Plant

Duplex Stainless Steel EFW Pipes Sizes Available in Stock

Pipe Type NB Sizes Sch 5 Sch 10 Sch 40 Sch 80 Sch 160
ASTM A928 Super Duplex Stainless Steel EFW Pipes 8 inch NB Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 10 inch NB Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 12 inch NB Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 14 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 16 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 18 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 20 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 22 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 24 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 26 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 28 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 30 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 32 inch NB Yes Yes Yes Yes Yes
ASTM A928 Super Duplex Stainless Steel EFW Pipes 36 inch NB Yes Yes Yes

Supplying ASTM A928 Duplex Stainless Steel EFW Pipes to Countries -

We Export ASTM A928 Duplex Stainless Steel EFW Pipes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Savoy Piping Inc. is a well known worldwide Exporter of ASTM A928 Duplex Stainless Steel EFW Pipes, Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deals in ASTM A928 Duplex Stainless Steel EFW Pipe in India and Overseas, offering a wide range of ASTM A928 Duplex Stainless Steel EFW Pipes