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WELD X52 ERW/HFW Steel Tube
  • WELD X52 ERW/HFW Steel Tube
  • WELD X52 ERW/HFW Steel Tube
  • WELD X52 ERW/HFW Steel Tube
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
Min. Order: 1 Piece/Pieces
Delivery Time: 25 Days
Basic Info

Model No.: 24-48"

Product Description

He Bei GuangHao Pipe Fittings Co .,LTD Specializing in the production of Steel Pipe and pipe fittings
Main production:Heat Preservation Anticorrosive Pipe，Seamless Pipe，ERW/HFW Steel Pipe，LSAW STEEL PIPE，Spiral Tube，Buttweld Steel Pipe Fittings,Industrial Flanges,Steel Pipes,Buttweld Elbows,Buttwel Tees,Forged fittings,etc.
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Forged Fittings/Buttweld Steel Pipe Fittings Type: Elbow, cross, street elbow, tee, coupling, half coupling, cap, plug, bushing, union, outlet, sage nipple, bull plug, reducer insert, pipe nipple etc.


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  • Specification:
  • 1. Out diameter: 508mm - 812.8mm (20"-32")
  • 2. Thickness: 4.0-38.1mm
  • 3. Length: 3m-35m
  • 4. Type: ERW (Electric Resistance Welded) Steel Pipe, HFI (High Frequency Induction) Steel Pipe, HFW (High-Frequency Welding) Steel Pipe
  • 5. Standard: API 5L(ISO 3183) PSL1/PSL2: GR.B-X80, GB/T 9711.1, GB/T 9711.2, ASTM A53: GR.A/GR.B, ASTM A500: GR.A/GR.B/GR.C/GR.D, ASTM A252: GR.1/GR.2/GR.3, EN10219/EN10210: S275/S355JRH/J0H/J2H, AS/NZS 1163
  • 6. Uses: Welded steel pipes for use in pipeline transportation system in the petroleum and natural gas (oil & gas) industries, water pipeline, structural & Construction.
  • 7. Chemical Analysis (%):

Chemical Composition for PSL 1 pipe with t ≤ 0.984”

Steel Grade Mass fraction, % based on heat and product analyses a,g
C Mn P S V Nb Ti
max b max b max max max max max
Seamless Pipe
X52 0.28 1.4 0.3 0.3 d d d
Welded Pipe
X52 0.26 1.4 0.3 0.3 d d d

Chemical Composition for PSL 2 pipe with t ≤ 0.984”

Steel Grade Mass fraction, % based on heat and product analyses Carbon Equiv a
C Si Mn P S V Nb Ti Other CE IIW CE Pcm
max b max max b max max max max max max max
Seamless and Welded Pipe
X52N 0.24 0.45 1.4 0.025 0.015 0.1 0.05 0.04 d,e,l 0.043 0.25
X52Q 0.18 0.45 1.5 0.025 0.015 0.05 0.05 0.04 e,l 0.043 0.25
Welded Pipe
X52M 0.22 0.45 1.4 0.025 0.015 d d d e,l 0.043 0.25
a. SMLS t>0.787”, CE limits shall be as agreed. The CEIIW limits applied fi C > 0.12% and the CEPcm limits apply if C ≤ 0.12%,
b. For each reduction of 0.01% below the specified max. concentration for carbon, and increase of 0.05% above the specified max. concentration for Mn is permissible, up to a max. of 1.65% for grades ≥ B, but ≤ = X52; up to a max. of 1.75% for grades > X52, but < X70; and up to a maximum of 2.00% for X70.,
c. Unless otherwise agreed Nb = V ≤ 0.06%,
d. Nb = V = Ti ≤ 0.15%,
e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15%,
f. Unless otherwise agreed,
g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15%,
h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50%,
i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50%,
j. B ≤ 0.004%,
k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% and MO ≤ 0.80%,
l. For all PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001% .

Mechanical properties

Pipe Grade Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 1 Seam of Welded Pipe
Yield Strength a Tensile Strength a Elongation Tensile Strength b
Rt0,5 PSI Min Rm PSI Min (in 2in Af % min) Rm PSI Min
X52 52,200 66,700 c 66,700

Hydrostatic test

Pipe to withstand a hydrostatic test without leakage through the weld seam or the pipe body. Jointers need not be hydrostatic tested provide the pipe sections used were successfully tested.

Bend test

No cracks shall occur in any portion of the test piece and no opening of the weld shall occur.

Flattening test

Acceptance criteria for flattening test shall be:

  • EW pipes D<12.750 in:
  • X60 with T 500in. There shall be no opening of the weld before the distance between the plates is less than 66% of the original outside diameter. For all grades and wall, 50%.
  • For pipe with a D/t > 10, there shall be no opening of the weld before the distance between the plates is less than 30% of the original outside diameter.
  • For other sizes refer to the full API 5L specification.


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