ASTM A106 pipe (also covered in ASME specifications as S/A 106) is the standard specification for seamless carbon steel pipe for high-temperature service. Most common uses are in refineries and plants when gasses or fluids are transported at high temperatures and pressures.


NPS 1/4″- 30″
Schedules 10 through 160, STD, XH and XXH

ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids and gases that exhibit higher temperatures and pressure levels.

Dinesh Tube India stocks a full range of A106 pipe (SA106 Pipe) in:

  • Grades B and C
  • NPS ¼” to 30” diameter
  • Schedules 10 through 160, STD, XH and XXH
  • Schedules 20 through XXH
  • Wall Thickness beyond XXH, including:
    – Up to 4” wall in 20” through 24” OD
    – Up to 3” wall in 10” through 18” OD
    – Up to 2” wall in 4” through 8” OD

A/SA 106 Grade B specs are listed below.


ASTM A106 Seamless Pressure Pipe (also known as ASME SA106 pipe) covers seamless carbon steel nominal wall pipe for high-temperature service. Suitable for bending, flanging and similar forming operations.

NPS 1-1/2″ and under may be either hot finished or cold drawn. NPS 2″ and larger shall be hot finished unless otherwise specified.

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Killed steel, with primary melting process being open-hearth, basic-oxygen, or electric-furnace, possibly combined with separate degassing or refining.

Steel cast in ingots or strand cast is permissible.

Hot-finished pipe need not be heat treated.

Cold-drawn pipe shall be heat treated after the final cold draw pass.

Chemical Requirements

Grade AGrade BGrade C
Carbon max. %0.250.300.35
*Manganese %0.27 to 0.93*0.29 to 1.060.29 to 1.06
Phosphorous, max. %0.0350.0350.035
Sulfur, max. %0.0350.0350.035
Silicon, min.%
Chrome, max. %0.400.400.40
Copper, max. %0.400.400.40
Molybdenum, max. %
Nickel, max. %0.400.400.40
Vanadium, max.%

Total of Cr, Cu, Mo, Ni, and V shall not exceed 1%

Permissible Variations in Wall Thickness

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in Weights per Foot

Weight of any length shall not vary more than 10% over and 3.5% under that specified. NOTE — NPS 4 and smaller — weighed in lots. Larger sizes shall be weighed separately by length.

Permissible Variations in Outside Diameter

Outside Diameter at any point shall not vary from standard specified more than:

NPS [DN Designator]OverUnder
1/8 to 1-1/2 [6 to 40], incl1/64 (0.015)0.41/64 (0.015)0.4
Over 1-1/2 to 4 [40 to 100], incl1/32 (0.031)0.81/32 (0.031)0.8
Over 4 to 8 [100 to 200], incl1/16 (0.062)1.61/32 (0.031)0.8
Over 8 to 18 [200 to 450], incl3/32 (0.093)2.41/32 (0.031)0.8
Over 18 to 26 [450 to 650], incl1/8 (0.125)3.21/32 (0.031)0.8
Over 26 to 34 [650 to 859], incl5/32 (0.156)4.01/32 (0.031)0.8
Over 34 to 48 [850 to 1200], incl3/16 (0.187)4.81/32 (0.031)0.8

Tensile Requirements

 Grade AGrade BGrade C
Tensile Strength, min., psi48,00060,00070,000
Yield Strength, min., psi30,00035,00040,000

Number of Tests Required

NPS On One Length from Each Lot of
Tensile5 and smaller400 or less
6 and larger200 or less
Bending2 and smaller400 or less
Flattening2 through 5400 or less
6 and over200 or less

Hydrostatic Testing

Inspection test pressures produce a stress in the pipe wall equal to 60% of specified minimum yield strength (SMYS) at room temperature. Maximum Pressures are not to exceed 2500 psi for NPS3 and must stay under 2800 psi for the larger sizes. Pressure is maintained for not less than 5 seconds.

Mechanical Tests Specified

Tensile Test — NPS 8 and larger — either transverse or longitudinal acceptable Smaller than NPS 8 — weighed in lots. Larger sizes — by length. Flattening Test — NPS 2-1/2 and larger. Bending Test (Cold) — NPS 2 and under.

Degree of BendDiameter of Mandrel
For Normal A106 Uses9012 x nom dia. of pipe
For Close Coiling1808 x nom dia. of pipe

See our full list of pipe testing services.


Lengths required shall be specified on order. No “jointers” permitted unless otherwise specified. If no definite lengths required, following practice applies: Single Random — 17′ ~ 24′ lengths Double Random — 36′ ~ 44′ lengths

Required Markings on Each Length

(On Tags attached to each Bundle in case of Bundled Pipe) Rolled, Stamped, or Stenciled (Mfrs. Option) Manufacturer’s name or brand. Length of pipe. A106 A, A 106 B, A 106 C. ANSI schedule number. Hydrostatic test pressures and/or NDE; Weight per foot (NPS 4 and larger) or NH if neither is specified. Additional “S” if tested supplementary requirements.

Referenced Documents

  • ASTM A 530/A 530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
  • ASTM E 213 Practice for Ultrasonic Examination of Metal Pipe and Tubing
  • ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
  • ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings
  • ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products
  • ASME B36.10M Welded and Seamless Wrought Steel Pipe

General Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

QuantityFeet, centimeters, or number of lengths
Name of materialSeamless
GradeGrade A, Grade B, or Grade C
ManufactureHot-finished or cold-drawn
SizeNPS or Outside Diameter and Schedule Number of Average Wall Thickness
Special outside diameter tolerance pipe
Inside diameter tolerance pipe, over 10 in ID
LengthSpecific or random
Supplementary requirements
Test Report Required
Specification designation
Hydrostatic test
Special requirements

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*ASTM A 106 grade B Seamless Pressure Pipe

B) Unless otherwise specified by the purchaser, for each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted up to a maximum of 1.65 %.

*ASME SA 106 grade B Seamless Pressure Pipe

B) For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted up to a maximum of 1.35 %.

Seamless ASTM A106 Grade B Pipe – Schedule 40 ASME SA106 Pipe Exporter

Dinesh Tube India Is One Of The Leading Exporter & Supplier Of A106 Pipe & Sa106 Pipe. We Have A Huge Stock Seamless A106 Tubes & Pipes, Sa106 Pipes & Tubes. Our Stock Also Contains Most Demanded A106 Schedule 40 Pipe In Grade A, Grade B & Grade C. We Regularly Export Carbon Steel A106 Pipe, SA106 Pipes, Asme Sa106 Tubing To Different Parts Of The World. Our ASTM A106 Grade B Schedule 40 Pipe Is Supplied In Saudi Arabia, USA, Kuwait, Jordan, Iran, Qatar, Italy, Europe.

Astm A106 Grade B Pipe Price , Seamless Pipe Sa106 Grade B Pipe

Get Latest Price List And Available Sizes For Sa106 Grade B Pipe, A106 Seamless Pipe. Astm A106 Schedule 40 Pipe Are Available And Can Be Exported To Any Country. We Also Export Seamless Sa 106 Grade B Pipe To Morocco, Chile,Indonesia, France, Brazil, Sudan, Bangkok, Kenya, Poland. Dinesh Tube India Is A Well Known Stockist Of Sa106 Pipe In Iraq, Tanzania, New Zealand, Dubai, Canada, Australia, Thailand, Etc. We Can Export & Supply Sa106 & A106 Pipe From Any Mill That You Trust. Also, We Specialise In Supplying A106 Boiler Tubes & Asme Sa106 Condenser Tubes In Saudi Arabia. Furthermore, Dinesh Tube India Is A Preferred Sa-106 Pipe Suppliers In Europe.

Astm A106 Carbon Steel Pipe Manufacturer – Seamless A106 Grade B Pipe Supplier

ASTM A106 Pipes Are Carbon Steel Seamless ASTM A106 Pipe Used In Industries For High Temperature Services. They Are Used In Plants & Oil & Gas Refineries For Transfer Of Gases & Fluids Under High Pressure & Temperature. ASTM A106 / ASME SA106 Pipes & Tubes Are Suitable For bending, for flanging, for welding, etc. Dinesh Tube India Is A Well Known Supplier Of ASTM A106 Pipe In India, Poland & Saudi Arabia.

Stockist & Manufacturer Of High Quality A106 Pipes & SA106 Seamless Pipes & Tubes

We Manufacture & Stock Heat Exchanger A106 Tubes & SA106 Tubes In India. We Are One Of The Leading Exporter & Supplier Of Carbon Steel SA106 Tubes & A106 Pipes & Tubes In Europe . Dinesh Tube India Offers Low Carbon Mild Steel A106 Tubes & A106 Tubes In Round Tubes. Carbon Steel A106 Tubes & Pipes Exporter. Our SA106 & A106 CS Tubes undergoes hardness test, flattening test, flaring test, flange test, and hydrostatic test. These Tests Are Done Before A106 Pipe Is Stocked & Supplied To Our Clients. SA106 Boiler Pipe & Tube Has A Good Thermal Conductivity Which Makes It For Effective To Use In Many Industries.

Astm A106, Asme SA106 , A106 Grade C Pipe, A106M Pipes, SA 106 Grade B

We Are A Stockholder Of ASTM A106 Heat Exchanger Pipes In India & Saudi Arabia. With Ready Stock Of Seamless A106 Low Carbon Steel Pipes Our Company Supplies Schedule 40 Pipes To Our Clients In Short Time & At Lowest Prices. We Manufacturer ASTM A106 Tube & ASME SA106 Tube In All The Grades Available. SA106 Grade B Pipe, A106 Gr A Pipe & A106 Grade C Pipe.

Cold Drawn Seamless SA106 & A106 Tubes, SA106 Boiler Pipes Exporter & Supplier

Carbon Steel Seamless SA106 Pipes & Tubes, Seamless A106 Pipes & Tubes Have High Strength & Durability. Carbon Steel Seamless SA106 & A106 Tubes Are Resistant To Corrosion & Are Polished For Fine Finishing To Make It Even More Better. Dinesh Tube India Manufactures SA106 TubesWith High-Quality Raw Materials With zero Defects & Perfect Finishing. We Believe In Providing Our Customers Quality Products At Best Prices. We Manufacture & Supply SA 106 Pipes & Tubes According To The Dimensions & Standards/Materials Required By Our Clients. Exporter Of A106 Tubes & Pipes In Canada

Carbon Steel A106 & SA106 Pipe Exporter, ASME SA106 Seamless Pipes Supplier

We Export & Supply Excellent Quality ASTM A106 Pipes, Asme SA106 Tubes To Our Clients. We Make Sure That The A106 Pipe Confirms To Its Standards. Our Carbon Steel ASTM A106 Tubes & Carbon Steel ASTM SA106 Tubes Are Long Lasting & Are Cost Effective. ASME SA106 Round Tubes Are Tough & They Comply To Their Standards & Grades. Available Grades – ASTM A106 Grade A Pipe, Grade B Seamless Pipe, A106 Grade C Pipe, SA106 Grade B Pipe.

Astm A106 Pipe Dimensions – SA 106 Gr B Material Specification – Seamless A106 & SA 106 Pipe Sizes & Wall Thickness

sa106 & A106 Pipes & Tubes SizeFor Pipes- NPS 1/4″ – 30″ OD, Custom Size AvailableFor Tubes – 6.35mm o.d to 101.60mm o.d
Heat Exchanger Pipes & Condenser pipes GradesSA106 Pipe, A106 Pipes & Tubes
TypeSeamless SA106 & A106 Pipe
LengthDouble Random & Required Length, Single Random, & Custom Size Available
Shape/FormRound Pipes & Tubes, Coiled Tubes, “U” Shape Pipes & Tubes.
Pipes & Tubes EndPlain End, Beveled End, Treaded Protected With Plastic Caps
Coating Of A106 & SA106 pipesAnti-Corrosion Oil, Galvanised Finish, Black Painting, Finish as per Customer  Requirements
DiameterNPS ¼” to 30” diameter, Custom Diameter Available
OriginIndian Origin, Japanese Origin, US Origin, Ukraine Origin, Russian Origin, Korean Origin, European Origin,
GradeGrade A, Grade B, Grade C

ASTM A106 Chemical Composition, SA 106 Gr B, ASTM A106 Material Properties

C, max.MnP, maxS, maxSi, minCr, maxCu, maxMo, maxNi, maxV, max
SA106 / A106 Grade A Pipes & Tubes0.250.27 – 0.930.0350.0350.100.400.400.150.400.08
astm a106 grade b propertie, sa 106 gr b material composition0.300.29 – 1.060.0350.0350.100.400.400.150.400.08
SA106 / A106 Grade C Pipes & Tubes0.350.29 – 1.060.0350.0350.100.400.400.150.400.08

Astm A106 Mechanical Properties, SA 106 Gr B Material Properties, Astm A106 Grade B Hardness & Density

The Mechanical Properties Of ASTM A106 Pipes & Sa 106 Pipe Makes It One Of The Most Demanded Pipes In Industry. ASTM A106 Grade B Density, Its Hardness And Its Yield Strength Is Remarkable. Hence They Are Highly Demanded But Has Less Availability. But Here At Dinesh Tube India You Can Get ASTM A106 Grade B Pipe And Sa 106 Pipe Available And Ready For Supply.

ASTM A106 Gr.BASTM A106 Gr.C
Y.S, min, psi [Mpa]35 000 [240]40 000 [275]
T.S., min, psi [Mpa]60 000 [415]70 000 [485]

ASME SA106 & ASTM A106 Tubes Application Industries

SA106 Pipes & Tubes, A106 Pipes & Tubes Are Used In Many Application Industries. ASTM A106 Seamless Pipes & ASME SA106 Round Tubes Are Used In Heat Transfer Equipments Like Tubular Heat Exchangers, Condensers, Etc. ASTM A106 Pipes Are Also Used In Sugar Mills, Petrochemical Industry, Construction & Cement Industries & Steel Plants Too.

Types Of SA106 / A106 Pipes & Tubes We Export & Supply

ASTM A106 PipesASME A106 Tubes
ASTM A106 / ASME SA106 Piping & TubingASME A106 Seamless Pipes & Tubes
ASTM A106 Seamless Pipes & TubesA106 & SA106 Round Pipes & Tubes
ASTM A106 Heat Exchanger Pipe & TubeA106 Boiler Tubes & Pipes
SA106 Condenser Pipes & TubesASTM A106 Carbon Steel Seamless Pipes & Tubes
A106 Pressure Pipe / SA106 Pressure PipesCold Drawn SA106 Pipes & Tubes
ASTM A106 / ASME SA106 Grade A Pipes & TubesCold Drawn ASTM A106 Pipes & Tubes
A106 / SA106 Grade B Pipes & TubesSA106 / A106 Grade C Tubes & Pipes

Marking & Packing Of SA106 & A106 Seamless Pipes & Tubes

SA106 Pipe & A106 Pipe Exported & Supplied By Dinesh Tube India Are Made Up Of Top Quality Raw Materials. These ASTM A106 Grade B Pipe, ASME SA106 Grade B Pipe Are Stocked In Large Warehouses. Furthermore, Proper Care Is Taken To Ensure That There Is No Damage To Carbon Steel Sa106 & A106 Seamless Pipes. We Mark SA106 & A106 Round Pipes & Tubes With Their Grades, Sizes & Our Logo. Furthermore, The Packing Of SA106 & A106 Seamless Heat Exchanger Pipe Is Done In Wooden Boxes & Export Carefully. We Are One Of The Fastest & The Most Trusted Exporter Of SA106 & A106 Carbon Steel Heat Exchanger Tubes. Dinesh Tube India Is one of the most popular SA106 stockholder In USA, Saudi Arabia & India.