ASTM B729 UNS N08020 Pipe

ASTM B729 Pipe

Many applications in food, energy, pharmaceutical, plastics, and other industries require pipes and tubes with chloride ion and sulphuric acid resistance. Hence these piping systems should have nickel, chromium, and molybdenum as elements in the steel alloy.

ASTM B729 is a specification for such alloy covering UNS N08020 and UNS N08024 nickel alloy coldworked hot-finished seamless pipes and tubes. Its other name is ASME SB 729 seamless nickel-iron-chromium-molybdenum-copper nickel alloy pipe. ASTM B729 tubing provides potential pitting, inter-granular, and crevice resistance for many applications involving salt water or sulphuric acid.

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SB 729 N08020 seamless tubes are manufactured in hot-finished & cold-worked method, refer sizes and standard specification

ASTM B729 UNS N08020 Pipe specification


ASTM B729 Pipe Specification

For special sizes, get in touch with one of the authorised ASTM B729 UNS N08020 pipe suppliers in
the UAE listed
above
ASTM B729 seamless pipe and tube size ASTM B729 gr. UNS N08020 coiled tube sizes ASTM B729 gr.UNS no. 8020 capillary tube sizes
  • OD: 3 to 600 mm
  • Length: 0.5 to 12 meter
  • Wall Thickness: 0.5 – 30mm
  • Wall Thickness: 0.1 – 3.0mm
  • OD: 0.4 to 16 mm
  • Length: 50 to 1000 m
  • OD: 0.4 to 16 mm
  • Wall Thickness: 0.1 – 3.0mm
  • Length: 0.5 to 12 meter
Coiled tubing classification SB 729 UNS N08020 heat exchanger tube size ASTM B729 N08020 thick wall pipe sizes
  • O type
  • U type
  • Flange heating tubes
  • I type
  • W type
  • Thickness: 0.7 to 6 mm
  • OD: 6 to 76 mm
  • Straight length: upto 30 meters
  • Outside Diameter: 10 to 600 mm
  • Wall Thickness: 2.5 to 100 mm
  • Length: 0.5 to 12 meter
ASTM B729 seamless tube furnished condition Temperature range American Standard
  • Seamless cold-worked
  • Hot finished
1,150 – 900 °C (2,100 – 1,650 °F)
  • ASTM B729
  • ASME SB 729
Schedule ASME SB729 tube dimensional standard Welding electrode
Schedule 40 through Schedule 80 ASME B36.10 / ASME B36.19
  • Inconel 112
  • Inconel 122
Density Welding filler Melting point
8.05 g/cm3
  • Inconel filler metal 625
  • Inconel filler metal 622
1800-1850°F (982-1010°C)
ASTM B729 seamless nickel alloy tubes pipe form Value added services ASTM B729 tubing benefits
  • Straight
  • Hydraulic
  • Square
  • Rectangular
  • Coiled
  • Hollow
  • Pan Cake Coils
  • U Shape
  • Round
  • Machining
  • Beveling
  • Threading
  • Cut-to-length services
  • Welding

Use chat or email to get in direct contact with mentioned ASTM B729 UNS N08020 pipe stockists, stockholder,
and distributors
for these services.

  • Extended equipment lifespan
  • Enhanced safety and reliability
  • Broad range of compatibility
  • Excellent fabricability
Surface treatment Hardness range Maximum operating temperature
  • MP / EP / BA
  • Polished
  • Pickled
  • AP
217 Brinell 500 °C (930 °F)
SB 729 N08020 nickel seamless pipe strength Supply in following brand Most selling ASME SB729 UNS N08020 pipe and tube types
  • Yeild strength: 620 MPa
  • Tensile strength: 300 MPa
  • Lincoln
  • Sumitomo Metals, Japan
  • Esab
  • Metrode
  • Kobe Special Tube, Japan
  • BOHLER
  • Special Metals USA
  • Sanyo Special Steel, Japan
  • Nippon Steel Corporation, Japan
  • Tubacex Tubos Inoxidables S.A., Spain
  • Seah Steel Corporation, Korea
  • Schoeller Bleckmann, Austria
  • Seamless tubing
  • Capillary tubing
  • Instrumentation tube
  • Condenser tubes
  • Seamless nickel tubing
  • Exhaust tubing
  • Round pipe
  • Boiler tube
  • Heater tube
  • ASME SB 729 seamless nickel-iron-chromium-molybdenum-copper nickel alloy pipe
  • Square pipe
  • Square tubing
  • Bright annealed tube
  • Tubing
  • Heat exchanger tube
  • Cold drawn tube
  • Seamless nickel tube
  • Seamless pipe
  • Coiled tubing
  • Polish tube
  • Superheater tubes
  • Seamless nickel pipe
  • Extruded tube
  • Rectangular pipe
  • Tube
  • Annealed tube
  • Seamless tube
Origin standards of B729 N08020 rectangular pipe ASTM B729 nickel alloy seamless pipe features Certification of ASTM B 729 square pipe
  • European Standard
  • American Standard
  • Janpanese Standard
  • Russia Standard
  • Austenitic microstructure
  • High nickel and chromium content
  • Molybdenum and copper additions
  • Niobium stabilization
  • Raw Materials Certificate
  • EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
  • Third Party Inspection Report
  • Form A for Generalized System of Preferences (GSP)
  • Fumigation Certificates
  • Moisture testing report
  • Heat Treatment Charts
  • Laboratory Test Certificate from Govt. Approved Lab
  • Surface roughness measurement
  • HS Code Commercial Invoice
  • DFARS compliant
SB 729 N08020 square tubing marking ASME SB729 nickel alloy seamless tube applications ASTM B729 pipe inspection methods
  • Manufacturer’s Name or Custom Logo – on request
  • Schedule or Wall Thickness
  • Material Grade
  • Heat Number
  • Nominal Size
  • Specification
  • Method of Manufacturing (Seamless / Welded)
  • Chemical processing
  • Petrochemical and refining
  • Marine
  • Power generation
  • Pharmaceutical and food processing

The previously mentioned top ten reliable suppliers of ASTM B729 UNS N08020 pipe have provided to Qatar, Bahrain, Saudi Arabia, Ethiopia, Tanzania & Morocco.

  • Laboratory spectrometer
  • Corrosion testing
  • Tensile test
  • Surface roughness testing
  • PMI test
  • Real time digital radiography testing
  • Chemical analysis
  • Hydrostatic testing
  • Micro structure examination
  • Eddy current testing
  • Ultrasonic testing
  • Air under water testing

Straight communication with the distributors, dealers, and ASTM B729 UNS N08020 pipe stockists listed above
for the above
mentioned test

ASTM B729 UNS N08026 pipe packaging SB 729 UNS N08020 cold drawn tube end type Welding method
  • Wrapped in plastic or standard seaworthy export packing
  • PE Fabric Bundles
  • Custom
  • Wooden Boxes
  • Crates (steel/wooden)
  • Special crates for with each radius separated
  • Bundles (hexagonal)
  • BLE:Bevel Large End
  • Threaded Ends (TE)
  • TOE:Thread One End
  • Grooved Ends
  • BBE:Bevel Both Ends
  • TSE:Thread Small End
  • BOE:Bevel One End
  • PBE:Plain Both Ends
  • BW:Buttweld End
  • Plain Ends (PE)
  • Bevelled Ends (BW)
  • PE:Plain End
  • BE:Bevel End
  • TE:Thread End
  • TBE:Thread Both Ends
  • TLE:Thread Large End
  • POE:Plain One End
  • BSE:Bevel Small End
  • Submerged arc welding
  • FCAW
  • TIG
  • SMAW
  • GMAW including both MIG and MAG
ASTM B729 welded tube equipment ASTM B729 gr.UNS no. 8020 round pipe delivery time Documentation offered
  • Sand-blasting machine
  • Electric bevelling machine
  • Pushing Machine
  • Press machine
  • Bending machine
  • Generally it is 7-10 days if its in stock
  • 15-20 days if its not in stock
  • Copy of Packing List indicating details of Sizes, quantity, weight, thickness etc.
  • Bill of Lading.
  • Copy of Invoice
  • Manufacturer’s Mill Test Certificate certifying, Heat No, finish, Chemical Composition, Grade etc.,
  • Country of Origin Certificate (Original)
SWG ASTM B729 UNS N08024 pipe transport Get ASTM B729 UNS N08020 pipe suppliers with below approval
  • 10 Swg.
  • 12 Swg.
  • 14 Swg.
  • 16 Swg.
  • 18 Swg.
  • 20 Swg.
  • By Road : Truck / Train
  • By Sea – FCL (Full Container Load) / Break-bulk Conventional Vessel /LCL (Less Container Load) / 40 Feet
    Container / 20 Feet Container /45 Feet Container / High Cube Container / Open Top Container
  • By Air – Freighter Civil Passenger and Cargo Planes
  • MAADEN
  • EGPC
  • ALBA
  • QAFCO
  • Qatar Petroleum
  • KNPC
  • SABIC
  • KOC
  • ADNCO
  • ORPIC
  • NPDC
  • Aramco
  • PETRONAS

SB 729 UNS N08020 standard cover only seamless pipe & tubes, refer mechanical strength of ASTM B729 Alloy 20 tubing

Mechanical properties of SB 729 material

Properties UNS N08020 UNS N08026 UNS N08024
Tensile Strength 620 MPa 620MPa 620MPa
Yield Strength 300 MPa 270MPa 270MPa
Elongation 41% 34% 34%

ASTM B729 tubing gauge thickness

Ex-stock of ASTM B729 N08020 seamless tubing in annealed, solution-annealed or stabilized-annealed condition, check thickness range

Gauge Thickness Range (inch) Typical Value (inch)
22 0.025 – 0.029 0.028
20 0.031 – 0.035 0.035
19 0.038 – 0.042 0.042
18 0.044 – 0.049 0.049
17 0.053 – 0.058 0.058
16 0.060 – 0.065 0.065
15 0.066 – 0.074 0.072
14 0.075 – 0.085 0.083
13 0.087 – 0.097 0.095
12 0.101 – 0.111 0.109
11 0.112 – 0.122 0.12
10 0.126 – 0.136 0.134
9 0.140 – 0.150 0.148
8 0.157 – 0.167 0.165
7 0.175 – 0.185 0.18

Most frequent types of ASTM B729 N08020

SB 729 N08020 seamless pipes with nondestructive & hydrostatic testing to ensure quality, check stock and manufacturing types

SB 729 N08020 exhaust tubing

SB 729 N08020 exhaust tubing

ASTM B729 seamless nickel-iron-chromium-molybdenum-copper nickel alloy pipe

ASTM B729 seamless nickel-iron-chromium-molybdenum-copper nickel alloy pipe

SB729 cold drawn tube

SB729 cold drawn tube

ASTM B729 gr. UNS N08020 tubing

ASTM B729 gr. UNS N08020 tubing

ASTM B729 tube

ASTM B729 tube

ASTM B729 UNS N08026 seamless nickel tube

ASTM B729 UNS N08026 seamless nickel tube

B729 capillary tubing

B729 capillary tubing

ASTM B729 N08020 seamless pipe

ASTM B729 N08020 seamless pipe

ASME SB729 seamless nickel pipe

ASME SB729 seamless nickel pipe

ASTM B 729 condenser tubes

ASTM B 729 condenser tubes

ASTM B729 UNS N08024 superheater tubes

ASTM B729 UNS N08024 superheater tubes

ASTM B729 gr.UNS NO. 8020 coiled tubing

ASTM B729 gr.UNS NO. 8020 coiled tubing

SB 729 UNS N08020 bright annealed tube

SB 729 UNS N08020 bright annealed tube

ASTM B729-20 heat exchanger tube

ASTM B729-20 heat exchanger tube

SB 729 seamless tube

SB 729 seamless tube

ASME SB 729 instrumentation tube

ASME SB 729 instrumentation tube

SB 729 UNS N08020 square tube weight chart

Dimensions(mm) Wall(mm) Weight per metre (kg)
12.7 x 12.7 1.20 0.44
1.50 0.55
15 x 15 1.20 0.53
1.50 0.65
20 x 20 1.20 0.71
1.50 0.88
2.00 1.19
25 x 25 1.20 0.92
1.50 1.14
2.00 1.49
3.00 2.20
30 x 30 1.20 1.10
1.50 1.37
2.00 1.84
3.00 2.72
40 x40 1.20 1.49
1.50 1.85
2.00 2.45
3.00 3.75
50 x50 1.50 2.32
2.00 3.08
3.00 4.65
60 x60 2.00 3.71
3.00 5.49
70 x70 3.00 6.53
80 x80 2.00 4.98
3.00 7.53
100 x 100 2.00 6.40
3.00 9.53

ASTM B729 seamless tube chemical composition

ASTM B729 gr. UNS N08020 material are best to install in corrosive environments, check chemical composition percentage below
Element UNS N08020 UNS N08026 UNS N08024
Carbon 0.07 0.03 0.03
Silicon 1 0.5 0.5
Chromium 19-21 22-26 22.5-25
Phosphorus 0.045 0.030 0.035
Molybdenum 2-3 5.0-6.7 3.5-5.0
Nickel 32-38 33-37.2 35-40
Iron 35 24.4-37.9 26.6-38.4
Manganese 2 1.0 1.0
Copper 3-4 2.0-4.0 0.5-1.5
Sulfur 0.035 0.030 0.035
Niobium 1 0.15-0.35
Nitrogen 0.1-0.16

ASTM B729 Pipe Properties

Physical properties of ASTM B729 seamless nickel alloy tubes

Properties UNS N08020 UNS N08026 UNS N08024
Density 8.05 g/cm3 8.2g/cm3 8.2g/cm3
Melting Point 1800-1850°F (982-1010°C) 1380 °C 2520 °F 1380 °C 2510 °F

Size range of ASTM B729 seamless pipe

Schedule 40 80
Pipe Size 0.5 1 4 1 3 2

ASTM B729 nickel alloy seamless pipe equivalent

Standards Country UNS N08020 UNS N08026 UNS N08024
UNS North America N08020 N08026 N08024
WNR Russia 2.4660
ASTM America B 729 B 729 B 729
ASME Australia SB 729 SB 729 SB 729
JIS Japan
BS United Kingdom
GOST Russia
AFNOR France Z2NCUD31-20AZ
EN Europe NiCr2oCuMo
AMS United States
ANSI America
SAE United States
AS Australia
DIN German 2.4660

Size chart of SB 729 N08020 capillary tube

O.D. (nm) UTW (mm) RW (mm) XTW (mm) TW (mm)
0.304 – 0.317 0.064 – 0.089
3.378 – 3.429 0.318 – 0.394 0.216 – 0.292
o.330 – 0.342 0.064 – 0.089
3.023 – 3.073 0.293 – 0.368 0.216 – 0.292
0.355 – 0.368 0.076 – 0.102
2.387 – 2.438 0.267 – 0.343 0.191 – 0.267
0.406 – 0.419 0.089 – 0.115 0.064 – 0.089
2.082 – 2.133 0.076 – 0.134 0.216 – 0.292 0.114 – 0.165 0.165 – 0.229
0.508 – 0.520 0.115 – 0.140 0.089 – 0.114
1.816 – 1.841 0.070 – 0.121 0.204 – 0.254 0.096 – 0.134 0.127 – 0.165
0.558 – 0.571 0.051 – 0.102 0.114 – 0.140 0.089 – 0.114
1.638 – 1.663 0.070 – 0.121 0.204 – 0.254 0.096 – 0.133 0.127 – 0.165
0.635 – 0.647 0.051 – 0.102 0.140 – 0.165 0.089 – 0.114
1.460 – 1.485 0.057 – 0.102 0.177 – 0.229 0.083 – 0.127 0.115 – 0.152
0.711 – 0.723 0.051 – 0.102 0.140 – 0.165 0.077 – 0.102 0.096 – 0.121
1.257 – 1.282 0.051 – 0.102 0.191 – 0.241 0.083 – 0.121 0.127 – 0.165
0.812 – 0.825 0.051 – 0.102 0.140 – 0.165 0.102 – 0.127
1.054 – 1.079 0.166 – 0.216 0.070 – 0.108 0.102 – 0.140

ASTM B729 nickel alloy seamless tube standard covering material list

ASTM UNS Material Name Density
ASTM B729 N08020 Alloy 20 8.05 g/cm3
ASTM B729 N08026 Nickel Alloy 8.2g/cm3
ASTM B729 N08024 8.2g/cm3

Time and place of delivery for ASME SB729 tube

Export to Cost variations and the expected delivery
Mexico 5 % extra | 20-25 days
Saudi Arabia 5 % extra | 5-7 days from Ex-stock
Vietnam 5 % extra | 10 days
Qatar 5 % extra | 5-7 days from Ex-stock
Thailand 5 % extra | 7 days
Russia 5 % extra | 20/ 25 days
Australia 5 % extra | 21 days
Kenya 5 % extra | 19 days
Japan 5 % extra | 7 days
Yemen 5 % extra | 21 days

Which grades are covered by ASTM B729 specification?

ASTM or the American Society for Testing Materials specification for B729 steel alloy includes many grades. It includes Nickel Alloy 20 seamless tube, Nickel Alloy 20 seamless pipe, Carpenter 20 seamless pipe, Carpenter 20 seamless tube, and ASTM B729 UNS N08020.

Commonly known as Alloy 20 or ASTM B729 alloy 20, it has three grades per the unique number specification. It includes ASTM B729 UNS N08020, ASTM B729 UNS N8024, and ASTM B729 UNS N08026. ASTM B729 welded tube can resist chloride-induced cracking up to 150 degrees Celsius.

What is ASTM B729 pipe furnished conditions?

ASTM B729 pipes depending on their many grades are furnished in different conditions. For example, the general furnishing condition of the Carpenter 20 B729 pipe is in a stabilized annealed condition suitable for applications susceptible to chloride ion and pitting corrosion.

Similarly, furnishing the grade ASTM UNS NO8026 is in solution-annealed condition to have high mechanical properties useful for specific applications. And furnishing of ASTM UNS N08024 should be in the annealed condition. Reputed suppliers ensure the right furnishing conditions for the ASTM B729 nickel alloy seamless pipe per the customers’ requirements for particular operations.

What is the allowable fiber stress of ASTM B729 seamless pipe?

Fiber stress determines the loading strength of the pipes and tubes, and it is important to carry dangerous liquids and gases. Renowned suppliers conduct hydrostatic tests analysis and will examine the fiber stress of all the pipes and tubes to know their allowable fiber stress.

ASTM B729 seamless pipe has 30% elongation in 2 in or 50.8mm or 4D min and conducted the hydrostatic test at a pressure not over 17 MPa or 2500 psi for nominal sizes of 76mm. The allowable fiber stress in this temper condition is 138 MPA or 20,000 psi.

Why is hydrostatic testing necessary for the ASME SB729 tube?

All ASME SB 729 tubes and pipes undergo hydro testing to check their strength and identify leaks. It also helps to know the allowable fiber stress of pipes and tubes and the elasticity while carrying the gas and liquids.

For conducting a hydrostatic test it is essential to fill SB 729 tubes with liquid, especially water. To detect any leaks, the water’s dyeing or colouring is important, It makes identification of any defects easy. And to know the pressure tightness, it is essential to shut off the supply valve to check if there is any pressure loss.

What are buying tips for ASTM B729 seamless nickel alloy tubes?

Pipes and tubes are unsung heroes in several domestic, commercial, and industrial projects The following are a few tips for buying ASME SB729 nickel alloy seamless tubes.

  • Check for the alloy name or the UNS number to be suitable for specific applications
  • Confirm the ASTM specifications and the year of use to know the right composition of the alloy used to make the pipes or tubes
  • Check for the dimensions, sizes, and test certificates to buy superior-quality pipes and tubes
  • Above all, buying ASTM B729 seamless nickel alloy tubes from reputed pipe and tube suppliers is essential.