September 20, 2022

Steel pipe welding processes A brief analysis of the technical characteristics 

The welding steel pipe process is through heating, pressurization, or both, with or without welding consumables, so that the two workpieces produce atoms diffusion between each other, forming a metallurgical combination of processing technology and connection. Welded steel pipes are widely used in both metallic and non-metallic applications. Let’s take […]
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September 12, 2022

Enquiry for the supply of OCTG CASING TUBING

Dear Sirs / Madam,                                                                         BUYING ENQUIRY   Please note subject is purchasing enquiry ( 5 Years Contract ) and we kindly request you to submit your quotation for the Supply of Pipes as per the below specification and would appreciate receiving your offer on or before 5th Mar  2022.   Moreover please reply […]
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September 5, 2022
ASTM A139 LSAW Structural pipes and pile pipes for low pressure liquid delivery

API2H LSAW PIPE 5728 MTONS for AYBI STEEL

PLEASE ADD ALL PIPE AND PLATE FACTORIES NAMES TO OFFER AND ADD CERTIFICATES AND SEND ALL INSIDE 1 EMAIL .THERE MUST BE 2 KIND PLATE FACTORIES, ONE API2H CERTIFIED FOR ITEMS WHO NEEDS API2H . MANDATORY YOU MUST BUY THEM FROM API2H CERTIFIED FACTORY . OTHER ITEMS WHO DONT SHOW […]
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August 31, 2022
API 5CT L80 Casing and Tubing

Inquiry coated tubing 3-1/2″ L80 type 13Cr, tubing with internal protective coating

KERUI GROUP Inquiry for L80 tubing with internal protective coating 1. NAME AND APPLICATION FIELD 1.1. Name — tubing with internal protective coating. 1.2. Application Field – tubing with internal protective coating has been widely used over the globe for more than 60 years. The polymer coating of the tubing […]
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August 31, 2022

Evergreen Steel company Want buy Cold rolled EN10219 S355JOH seamless pipe

Dear Sir,   Please send us your commercial offer for following material or equivalent materials (china origin, 6 mtr /12 mtr length, equivalent, higher grade materials are acceptable)   SL No Actual Requirement Uom Qty Total Weight in MT (Apprx)  Alternative Approved Grade   Supplier available Material Thickness Supplier available […]
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August 26, 2022

Inspection technology of petroleum steel pipe threads (OCTG Pipe)

Abstract: The oil pipe thread is a dedicated thread, which requires good air tightness. In order to effectively ensure the quality of thread inspection, it is necessary to choose a reasonable inspection technology, and it is very important to be familiar with the relevant geometric accuracy requirements of the thread […]
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August 24, 2022

Theoretical weight calculation formula of various steels

  Angle steel: weight per meter=0.00785*(side width+side width-side thickness)*side thickness  Round steel: weight per meter=0.00617*diameter*diameter (rebar and round steel are the same) Flat steel: weight per meter=0.00785* Thickness * side width  Pipe: weight per meter = 0.0246615 * wall thickness * (outer diameter – wall thickness) plate: weight per meter […]
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August 23, 2022

How do oil casings go into the oil wellhead ?

Casing is nested layer by layer, the outermost layer under the deepest and shallowest coarsest, and then step by step deeper, thinner, the above figure is erased the key data of the well depth structure diagram, you can see, the first four openings are casing back to the wellhead, so […]
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