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Seamless pipes are derived from solid steel that is in sheet or bar form and is formed into a solid round shape known as “billets” which are then heated and cast over a form such as a piercing rod to create a hollow tube or shell. From: Reliability and Maintainability of In-Service Pipelines.
Carbon steel, also known as carbon steel, is an iron carbon alloy with an internal carbon content of nearly 2%. In addition to carbon, carbon steel contains many other elements, such as manganese, sulfur, or silicon. Generally speaking, the higher the amount of carbon contained in carbon steel, the greater its hardness, the higher the strength will be produced. Just note that the higher the carbon content, the lower the plasticity.
Material: | A36、A53、A106、A192、ST52、Q355、A210、T12、T11、P5、P9、P91、T22、A333、4140、5135 etc. | |
Grade(EN): | 1.7220、1.7336、1.2601、1.7380、1.7335、1.0033、1.0116 etc. | |
Size | Outer Diameter | Seamless:17-914mm 3/8"-36" |
Wall Thickness | 2-60mm SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 | |
Length | 1-12m as customer requirement | |
Ends | Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded andcoupling,etc. | |
Surface Treatment | Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating | |
Technical Methods | Hot-rolled/Cold-drawn/Hot-expanded | |
Testing Methods | Pressure test,Flaw detection,Eddy current testing, Hydrostatic testing or Ultrasonicexamination and also with chemical and physical property inspection | |
Third Party Inspection | SGS BV MTC | |
Trade Terms | FOB CIF CFR | |
Payment Terms | FOB 30%T/T,70% before shipment | |
CIF 30% pre-payment and the balance to be paid upon B/L (copy) | ||
or Irrevocable 100% L/C at sight |