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A333 GR. 3/6 Carbon Steel Seamless Pipes Manufacturer and Exporter

A333 GR. 3/6 Carbon Steel Seamless Pipes

A333 GR. 3/6 Carbon Steel Seamless Pipes / ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B Pipes Tubes

A333 GR. 3/6 Carbon Steel Seamless Pipes Manufacturer and Exporter

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Renowned manufacturers & suppliers of A333 GR. 3/6 Carbon Steel Seamless Pipes, ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B Pipes Tubes

We export high quality A333 GR. 3/6 Carbon Steel Seamless Pipes & ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B Pipes Tubes

Chemical Requirements

  Composition, %  
Element Grade 1 Grade 3 Grade 6
Carbon, max 0.30 0.19 0.30
Manganese 0.40 - 1.06 0.31 - 0.64 0.29 - 1.06
Phosphorous, max 0.025 0.025 0.025
Sulfur, max 0.025 0.025 0.025
Silicon 0.18 -0.37 0.10 min
Nickel 3.18 - 3.82

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese.

Tensile Requirements
he material shall conform to the requirements as proscribed:

Grade 1 Grade 3 Grade 6
psi MPa psi MPa psi MPa
Tensile Strength, min 55,000 380 65,000 450 60,000 415
Yield Strength, min 30,000 205 35,000 240 35,000 240
Longitudinal  Transverse Longitudinal  Transverse Longitudinal  Transverse
Elongation in 2 in. or 50 mm, (or 4D), min, %:
Basic minimum elongation for walls 5/16 in. [8 mm] and over in thickness, strip tests, and for all small sizes tested in full section 35 35 30 20 30 16.5
When the standard round 2-in. or 50-mm gage length or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used 28 20 22 14 22 12
For strip tests, a deduction for each 1/32in. [0.8 mm] decrease in wall thickness below 5/16 in. [8 mm] from the basic minimum elongation of the following percentage 1.75 1.25 1.50 1.00 1.50 1.00
  Elongation in 2 in. or 50 mm, min, %:
Wall Thickness Grade 1 Grade 3 Grade 6
in. mm Longitudinal  Transverse Longitudinal  Transverse Longitudinal  Transverse
5/16 (0.312) 8 35 25 30 20 30 16
9/32 (.281) 7.2 33 24 28 19 28 15
1/4 (.250) 6.4 32 23 27 18 27 15
7/32 (.219) 5.6 30 26 26
3/16 (.188) 4.8 28 24 24
5/32 (.156) 4 26 22 22
1/8 (.125) 3.2 25 21 21
3/32 (.094) 2.4 23 20 20
1/16 (.063) 1.6 21   18   18  

Impact Requirements
For Grades 1, 3 and 6, the notched-bar impact properties of each set of three impact specimens, including specimens for the welded joint in welded pipe with wall thicknesses of 0.120 in. [3 mm] and larger, shall not be less than the values prescribed:

Size of Specimen, min Minimum Average Notched Bar Impact Value of Each Set of Three Specimens Minimum Notched Bar Impact Value of One Specimen Only of a Set Impact Temperature
  ft-lbf J ft-lbf J Grade Min Impact 
Test Temp
10 by 10 13 18 10 14   F C
10 by 7.5 10 14 8 11 1 -50 -45
10 by 6.67 9 12 7 9 3 -150 -100
10 by 5 7 9 5 7 6 -50 -45
10 by 3.33 5 7 3 4  
10 by 2.5 4 5 3 4  

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Please note:
ASTM A312 / A312M - 13 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

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Updated on: Jan 2014

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US $600-1000 / Metric Ton (FOB Price)

 

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