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ASTM A106/A 106M GR. B SEAMLESS CARBON STEEL PIPES

ASTM A106 GR. B is the standard applicable to Seamless Carbon Steel Pipe for high-Temperature Service

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ASTM A106/A 106M Standard Covers Seamless Carbon Steel Pipe for high-temperature service in NPS 1/8 TO NPS 48 (DN6 to DN1200) inclusive, with nominal (average) wall thickness as given in ASME B 36.10M. It shall be permissible to furnish pipe having other dimensions provided such pipe complies with all other requirements of this specification. Pipe ordered under this specification shall be suitable for bending, flanging, and similar forming operations, and for welding. When the steel is to be welded, it is presupposed that a welding procedure suitable to the grade of steel and intended use or service will be utilized.

ASTM A106/A 106M covers several grades of carbon and alloy steel seamless pipe

ASTM A106/A 106M covers both seamless hot-finished and cold-finished pipe in sizes up to and including NPS 1/8 TO NPS 48(DN6 to DN1200) outside diameter for round tubes with wall thicknesses as required.

Standard: ASTM A106/A 106M

Description Name: ASTM A106B Seamless pipe, ASTM A106 GR. B Seamless pipe, A106 GR. B tubes

ASTM A106A Seamless pipe, ASTM A106 GR. A Seamless pipe, A106 GR. A tube

ASTM A106C Seamless pipe, ASTM A106 GR. C Seamless pipe, A106 GR. C tubes

Size: 21.3mm-1219mm

Schedule: SCH10, SCH20, SCH40, SCH80, SCH160 SCHXXS FOR Thickness

Shape: Round or Special sections.

Length: Single random length/ Double random length or as customer’s actual request

Grade: GR. A, GR. B, GR. C

Condition: The purchaser shall specify a sizing method and, if required, a thermal treatment.

  • Sizing Methods:

HF-Hot Finished,

CW-Cold worked,

HE-Hot Expand

Test requirement:

ASTM A106 Gr. B Seamless Carbon Steel Pipe Chemical Composition(%):

StandardGradeChemical Components (%)
CSiMnPSMoCrV
ASTM A106A≤0.25≥01.00.27-0.93≤0.035≤0.035≤0.15≤0.40≤0.08
B≤0.30≥0.100.29-1.06≤0.035≤0.035≤0.15≤0.40≤0.08
C≤0.35≥0.100.29-1.06≤0.035≤0.035≤0.15≤0.40≤0.08

 

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ASTM A106 Gr. B Seamless Carbon Steel Pipe Mechanical Tests Required

StandardGradeMechanical properties
Tensile
Strength (Mpa)
Yield
Strength (Mpa)
Elongation
(%)
ASTM A106A≥330≥205≥35
B≥415≥240≥30
C≥485≥275≥30

 
 

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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.

Flattening Tests

Although testing is not required, pipe shall be capable of meeting the flattening test requirements of supplementary requirement S3, if tested.

Marking

Factory name or logo + ASTM A106 + GR. B + size + Heat No. + Lot No.

ASTM A106 GR.B marking

ASTM A106 GR.B marking

ASTM A106 GR. B Seamless carbon pipe photos:

ASTM A106 GR.B OD inspection 1

ASTM A106 GR.B OD inspection 1

ASTM A106 GR.B OD inspection

ASTM A106 GR.B OD inspection

ASTM A106 GR.B wall thickness inspection

ASTM A106 GR.B wall thickness inspection

ASTM A106 GR.B wall thickness inspection 1

ASTM A106 GR.B wall thickness inspection 1

ASTM A106 GR.B length messurement 6908mm

ASTM A106 GR.B length messurement 6908mm

ASTM A106 GR.B length inspection 6835mm

ASTM A106 GR.B length inspection 6835mm

ASTM A106 GR.B pipes for loading

ASTM A106 GR.B pipes for loading

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