ASTM b468 tube

ASTM b468 tube

The need for the right tubes for condensers, boilers, and heat exchangers is on the rise. It is to withstand the high temperature and pressure apart from fighting corrosion. Hence specifications for alloys with exceptional resistance to chemical environments like acids and chlorides became essential.

ASTM B468 specifies such solid alloys with superior corrosion resistance in extreme environments. It covers low-carbon nickel alloys and niobium-stabilized austenitic nickel-iron-chromium alloys. UNS N08020, N08024, and N08026 are the boiler, heat exchanger, and condenser tubes covered by ASTM B468 specifications.

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Searching for UAE-based suppliers of ASME sb468 UNS n08020 welded tubing? get here list and you must observe ASTM b468 vs b619

ASTM B468 tube specifications


ASTM B468 Tube Specification

Bespoke drawings can be produced by the top 10 ASTM B468 tube suppliers in the UAE.
ASTM B468 tube OD ASTM B468 UNS N08020 ERW tubes wall thickness SB 468 UNS N08020 welded tube length
  • 1/8 to 5 inch
  • 3.18 to 127 mm
  • 0.015 to 0.500 inch
  • 0.38 to 12.70 mm
0.5 to 12 meter
Dimensional requirements ASTM Standard ASTM B468 N08020 CEW tube dimentional standards
ASTM B751
  • ASTM B468
  • ASME SB 468
ASME B36.10 / ASME B36.19
SB 468 N08020 welded tubing density ASTM B 468 HFW tube melting point ASME SB 468 electric resistance welded tube condition
8.1 g/cm3 1443°C (2430°F)
  • Annealed
  • Solution annealed
Schedules Manufacturing types Surface finish
SCH 5 to SCH 160
  • Welded
  • Electric Resistance Welded (ERW)
  • Pickled
  • Polished
ASTM B468 UNS N08020 tube form Strength Welding electrode
  • Round
  • Rectangular
  • Hydraulic
  • Straight
  • U Shape
  • Square
  • Hollow
  • Yeild strength: 241 MPa
  • Tensile strength: 551 MPa
  • Inconel 112
  • Inconel 122
Welding fillers Most popular ASTM B468 UNS N08020 tube types Supply ASME SB468 UNS N08020 condenser tube in following brand
  • Inconel filler metal 625
  • Inconel filler metal 622
  • HFW tube
  • Bright annealed tube
  • Welded alloy tube
  • ERW tubes
  • Welded tube
  • Boiler tube
  • Condenser tube
  • Square tubing
  • Rectangular tubing
  • Heat exchanger tube
  • Electric resistance welded tube
  • Round tube
  • CEW tube
  • Solution annealed tube
  • Esab
  • Tubacex Tubos Inoxidables S.A., Spain
  • Metrode
  • Special Metals USA
  • Schoeller Bleckmann, Austria
  • Sumitomo Metals, Japan
  • Nippon Steel Corporation, Japan
  • Kobe Special Tube, Japan
  • Lincoln
  • BOHLER
  • Seah Steel Corporation, Korea
  • Sanyo Special Steel, Japan
Temprature range Maximum operating temperature Hardness range
2,100 to 1,650°F 500°C (930°F) 220 HBW
ASTM V468 heat exchanger tube origin standards Certification of ASTM B468 GR.UNS NO. 8020 boiler tube Features
  • American Standard
  • Russia Standard
  • European Standard
  • Janpanese Standard
  • Form A for Generalized System of Preferences (GSP)
  • EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
  • Fumigation Certificates
  • Raw Materials Certificate
  • HS Code Commercial Invoice
  • Laboratory Test Certificate from Govt. Approved Lab
  • DFARS compliant
  • Heat Treatment Charts
  • Surface roughness measurement
  • Third Party Inspection Report
  • Moisture testing report
  • Excellent resistance
  • Excellent fabricability
  • Corrosion cracking
  • High strength
ASME SB 468 welded alloy tube marking Welding method Applications
  • Material Grade
  • Heat Number
  • Manufacturer’s Name or Custom Logo – on request
  • Nominal Size
  • Schedule or Wall Thickness
  • Specification
  • Method of Manufacturing (Seamless / Welded)
  • SMAW
  • GMAW including both MIG and MAG
  • FCAW
  • Submerged arc welding
  • TIG
  • Chemical processing
  • Marine
  • Pharmaceutical
  • Petrochemical
  • Refining
  • Food processing

The ASTM B468 tube suppliers mentioned above have ex-stock and have previously supplied to many countries,
including
South Africa, United States, Oman, Kenya, Saudi Arabia, Egypt, and Middle East.

Services Documentation offered ASTM B 468 tubing delivery time
  • Cut-to-length services
  • Welding
  • Beveling
  • Machining
  • Threading

To communicate directly with listed ASTM B468 tube stockists, stockholders, and distributors for these
services,
use chat or email.

  • Manufacturer’s Mill Test Certificate certifying, Heat No, finish, Chemical Composition, Grade etc
  • Copy of Invoice
  • Copy of Packing List indicating details of Sizes, quantity, weight, thickness etc.
  • Country of Origin Certificate (Original)
  • Bill of Lading.
  • Generally it is 7-10 days if its in stock
  • 15-20 days if its not in stock
Packaging ASTM B468 GR.UNS N08020 tube inspection methods Tubes end type
  • Wooden Boxes
  • PE Fabric Bundles
  • Crates (steel/wooden)
  • Special crates for with each radius separated
  • Bundles (hexagonal)
  • Wrapped in plastic or standard seaworthy export packing
  • Custom
  • Chemical test
  • Mechanical test
  • Destructive test
  • Non destructive test
  • Pmi test
  • Visual inspection test
  • Third party inspection test
  • Nabl approved lab test
  • Flaring Test

Straight communication with the distributors, dealers, and ASTM B468 tube stockists listed above for the
above
mentioned test

  • TLE: Thread Large End
  • Bevelled Ends (BW)
  • Grooved Ends
  • BBE: Bevel Both Ends
  • BSE: Bevel Small End
  • BW: Buttweld End
  • BLE: Bevel Large End
  • TOE: Thread One End
  • BOE: Bevel One End
  • PE: Plain End
  • PBE: Plain Both Ends
  • Plain Ends (PE)
  • POE: Plain One End
  • TE: Thread End
  • TBE: Thread Both Ends
  • BE: Bevel End
  • Threaded Ends (TE)
  • TSE: Thread Small End

Dimentional tolerance of SB 468 UNS N08020 tube

OD .250” .375” .500”
Wall Tolerance ± 15% ± 15% ± 15%
OD Tolerance ± .005” ± .005” ± .005”

Most frequently used types of ASTM B468 tube

ASTM B 468 rectangular tubing

ASTM B 468 rectangular tubing

B468 electric resistance welded tube

B468 electric resistance welded tube

SB 468 heat exchanger tube

SB 468 heat exchanger tube

ASTM B468 UNS N08026 condenser tube

ASTM B468 UNS N08026 condenser tube

B 468 hfw tube

B 468 hfw tube

ASTM B468 UNS N08024 square tubing

ASTM B468 UNS N08024 square tubing

ASME SB468 welded tube

ASME SB468 welded tube

ASTM B468 gr.UNS N08020 welded alloy tube

ASTM B468 gr.UNS N08020 welded alloy tube

ASTM B468 ERW tube

ASTM B468 ERW tube

UNS N08020 CEW Tube

UNS N08020 CEW Tube

ASTM B468 gr.UNS NO. 8020 welded tubing

ASTM B468 gr.UNS NO. 8020 welded tubing

ASME SB 468 boiler tube

ASME SB 468 boiler tube

ASTM B468 tube standard covering material list

ASTM UNS Material Name Density
ASTM B468 UNS N08020 Alloy 20 8.05 g/cm3
UNS N08024 Nickel alloy 8.2 g/cm3
UNS N08026 Nickel alloy 8.2 g/cm3

Pressure rating of ASTM B468 N08020 tube

Tube O.D.
(in.)
Wall (inches)
.028 .035 .049 .065 .083 .095 .109 .120
Working Pressure
3/4 2200 3000 4000 4600
1/4 3700 4800 7000 9500
1 2200 2900 3400 3900 4300
1/2 2300 3200 4400
5/16 3700 5400 7300
3/8 3100 4400 6100
1/8 7900 10100

SB 468 N08020 tube surface finish chart

Surface Finish External Surface(OD) Internal Surface(ID)
Roughness Average Roughness Average
μ inch μm μ inch μm
BA Beight Annealed 32 0.8 40,32,25,20 1.0,0.8,0.6,0.5
EP Electro Polish 32 0.8 15,10,7,5 0.38,0.25,0.20;0.13
MP Mechanical Polish 32 0.8 40,32,25,20 1.0,0.8,0.6,0.5
AP Annealed & Pickled 40 or Not defined 1.0 or Not defined Not defined Not defined

ASTM B468 UNS N08020 tube size chart

Wall thickness Sizes Outside Diameter in inch
.010 1/16 1/8 3/16
.035 5/8 3/4 7/8 1 1 1/4 1 1/2 1 5/8 2 2 1/4 1/8 3/16 1/4 5/16 3/8 7/16 1/2 1/6
.028 1/8 3/16 1/4 5/16 3/8 1/2 3/4 1 1 1/2 2
.020 1/16 1/8 3/16 1/4 5/16 3/8
.012 1/8
.375 3 1/2
.016 1/8 3/16
.095 1/2 5/8 1 1 1/4 1 1/2 2
.049 5/8 3/4 7/8 1 1 1/8 3/16 1/4 5/16 3/8 1/2 16 1 1/4 1 1/2 1 5/8 2 2 1/4
.109 1/2 3/4 1 1 1/4 1 1/2 2
.120 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 2 2 1/4 2 1/2 3
.125 3/4 1 1 1/4 1 1/2 2 3 3 1/4
.134 1
.083 1/4 3/8 1/2 5/8 3/4 7/8 1 1 1/4 1 1/2 1 5/8 1 7/8 2 2 1/2 3
.250 3
.065 1/4 5/16 3/8 1/2 16 5/8 3/4 7/8 1 1 1/4 1 1/2 1 5/8 1 3/4 2 2 1/2 3

ASTM B468 tube chemical composition

Element Columbium(Nb)+tantaium Phosphorus Copper Manganese, max Chromium Carbon, max Molybdenum Sulfur, max Nitrogen Nickel Silicon, max IronA
UNS N08020 8x carbon-1.00 0.045 3.00-4.00 2 19.00-21.00 0.07 2.00-3.00 0.035 32.00-38.00 1 Remainder
N08024 0.15-0.35 0.035 0.50-1.50 1 22.50-25.00 0.03 3.50-5.00 0.035 35.00-40.00 0.5 Remainder
N08026 0.03 2.00-4.00 1 22.00-26.00 0.03 5.00-6.70 0.03 0.10-0.16 33.00-37.20 0.5 Remainder

Mechanical properties of ASME SB 468 tube

Properties UNS N08024 UNS N08020 UNS N08026
Tensile strength 620 MPa 620 MPa 620 MPa
Yield strength 270 MPa 300 MPa 270 MPa
Elongation at break 34% 41% 34%

ASTM B 468 tube equivalent

Standards Country UNS N08020 UNS N08024 UNS N08026
UNS North America N08020 N08024 N08026
WNR Russia 2.4660
ASTM America B468 B468 B468
ASME Australia SB 468 SB 468 SB 468
JIS Japan
BS United Kingdom
GOST Russia
AFNOR France Z2NCUD31-20AZ
EN Europe NiCr20CuMo
AMS United States
ANSI America
SAE United States
AS Australia
DIN German 2.4660

Physical properties of ASME SB 468 tube

Properties UNS N08020 UNS N08024 UNS N08026
Density 8.05 g/cm3 8.2 g/cm3 8.2 g/cm3
Melting Point 1425°C 1430°C 1380°C

ASTM B468 Tube Properties

Delivery time and location for ASTM B468 UNS N08020 tube

Export to The pricing changes and the scheduled delivery
Norway 5 % extra | 45 days
Azerbaijan 5 % extra | 30 to 45 days
Egypt 5 % extra | 18 days
Singapore 5 % extra | 8 days
Turkey 5 % extra | 21 days
Nigeria 5 % extra | 30 days
Libya 5 % extra | 45 to 60 days
Germany 5 % extra | 20 days
Finland 5 % extra | 45 days
Poland 5 % extra | 45 days
Sweden 5 % extra | 45 days
Kazakhstan 5 % extra | 45 to 60 days

Live-chat with reputable Middle East countries stockists of ASTM b468 UNS n08024 welded alloy tubes to get the quickest estimate and find out more about specifications.

ASTM B468 and B619 are specifications of nickel-chromium alloys but with varying percentages and other elements. If molybdenum strengthens B619 pipes with molybdenum, B468 is stabilized by niobium. Though both are specifications for austenitic alloys, there are many differences including the following.

  • B468 pipes and tubes are useful in heat exchangers, condensers, and boilers, whereas B619 is best for nuclear reactors, oil offshore drilling, and others
  • B468 welded tubing has three alloy grades, but B619 has many grades of Hastelloy, schedule steels of 5S, 10S, 40S and 80S

ASTM B468 specifications cover three grades of niobium-stabilized low-carbon austenitic nickel-iron-chromium alloys with additional copper, molybdenum, and others. The specification ensures ASME SB 468 welded alloy tubes’ exceptional corrosion resistance to extreme environments containing nitric, sulphuric, phosphoric, and other acids and chlorides. All the pipes and tubes made as per the ASTM B468 specification is useful in many applications in various sectors.

The tubes covered by ASTM B468 specifications include the following, among others.

  • UNS N08020 is nickel alloy 20 helpful for acidic environments containing applications in power generation, pharmaceutical, food processing, etc.
  • UNS N08024 tubes made from low base cost nickel alloy offer excellent crevice and pitting resistance
  • UNS N08026 tubes with nickel alloys having additional molybdenum have high tensile strength and corrosion resistance.

Purchase ASME sb468 UNS n08026 tubing according to international standards in Dubai from the top importers; observe the manufacturing process.

The making of the ASTM B468 welded tube should be as per the specifications to confirm chemical composition, tensile & yield strength, and elongation requirements. The furnishing of the three grades of ASME SB468 welded tube differs. UNS N0820 supply is in stabilized-annealed condition. UNS N0824 furnishing is in the annealed condition, and UNS N0826 is in the solution annealed condition. Making three grades of ASTM B468 pipes and tubes involves automating the welding process with no addition of filler material Before the final heating treatment after welding, cold working is essential to increase strength.

You’ve found the proper place if you’re seeking for traders of ASME sb468 alloy tube in GCC nations used for boiler, heat exchanger, and condenser applications. understand stabilized-annealed condition

The stabilized-annealed condition of ASTM B468 tubing ensures its chemical and thermal stability for many sensitive applications. Of the three grades of the ASTM B468 alloys, only the UNS N0820 supply is in the stabilized-annealed condition. UNS N0820 alloy has less than one percent of niobium which helps to precipitate the carbon during thermal stabilization. Hence UNS N0820 grade alloy pipes are strong enough not to crack even under extreme pressure.

Purchase from a trusted distributor of ASME sb 468 welded tubes at a reasonable cost with first-rate customer service and quick delivery. look how flange tests perform on each end

Flange tests on the ASTM B468 boiler tube prove its integrity if new welds are added. It is a better test than traditional pipe flooding for hydro testing as it consumes time and is expensive.
ASME SB468 heat exchanger tube undergoing flange tests with reduced costs and time to establish the strength for use in many applications

ASTM B468 condenser tube undergoes a flange test using a flange weld tester to find the integrity of new welds added to it. Reputed suppliers deliver pipes and tubes as per all the specifications of ASTM B468, including flange tests to confirm the integrity.