Pipes & Tubes

Seknoic Metals Supply You Various Kinds of Pipes and Tubes,Such as Seamless Steel Tube,Welded Pipe,Capillary Tube,Heat Exchanger Tubing In Material of Titanium Alloys,Nickel Based Alloys(Inconel,Incoloy,Hastelloy,Nimoinc,Ect) and Cobalt Based Alloys and other Staniless Steel Pipes and Tubes.

  • Pipes Available Forms: U-Bend Tube,Cut Lenght Tubepipe
  • Surface Condition:Polished/Bright Pipe,Pickling Pipe
  • Out Diameter Size: 6mm-600mm
  • Wall Thickness:0.1mm-50mmm
  • Specification/Standards: ASTM, ASME, GB, JIS, GOST, DIN, etc.
  • Pipes Manufacture Process: VIR(Vacuum Induction Melting) -VAR(Vacuum Arc Remelting)-ESR(Electroslag)-Forging/Hot rolling rod -Inspection-Peeling-Cut-Centering-Heating-Perforation-Inspection- Pickling/Polishing-Cold Rolling/Drawing-Straightening-Cutting-Pickling/Passivating Bright Annealing-Compostion inspectiong- Marking- Packing-Shipping


Our Crrently pipes  Material Types


Nickel Based Alloys
 Inconel      Alloys
Incone 718 Inconel 625 Inconel x750
Inconel 600 Inconel 601 Inconel 725
Inconel 617 Inconel 690 Inconel 725
Incoloy     Alloys
Incoloy A286  Incoloy 20  Incoloy 925
Incoloy 825 Incoloy 926 Incoloy 800H/HT
Incoloy 031 Incoloy 028 Incoloy
Hastelloy       Alloy
Hastelloy X Hastlloy B/B2/B3  Hastelloy C276
Hastelloy C22 Hastelloy G30  Hastelloy C-4
Nimoinc Alloy Nimoinc 75 Nimoinc 80A
Monel Alloy Monel 400  Monel K500
Precision      Alloys Invar 36 Kovar Alloy 1J79/1j85
Cobalt Based Alloys Hayness 25(L605)  Hayness 188 Refactaloy 26
UMCO50 Stellite 6/6B  MP35N
Stainless   Steel Nitronic 50(XM-19)  Nitronic 60 17-4PH
904L 316L F44/F55
254SMO 2205 PH13-8Mo

Main Testing Terms and Procedure:

  • Heat Treatment and Solution Annealing / Bright Annealing
  • Cutting to required length and deburring;
  • Chemical Composition Analysis Test With 100% PMI and One tube from each heat by Direct Reading Spectrometer
  • Visual Test and Endoscope Test for Surface Quality Test
  • 100% Hydrostatic Test and 100% Eddy Current Test
  • Ultrasonic Test subject to the MPS (Material Purchase Specification)
  • Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test
  • Impact Test subject to Standard request
  • Grain Size Test and Intergranular Corrosion Test
  • Ultrasoic measuring of Wall Thickness

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