Hot Rolled API 5L Seamless Tube

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Product  Descriptions :Hot Rolled API 5L Seamless Tube

The Hot Rolled Seamless Tube is manufactured through automatic continuous tube rolling mills.Precisely temperature (recrystallization temperature) controlling is required during different rolling processes,like initial rolling stage,finish rolling stage and curling stage,to achieve microstructure and mechanical structure of steel plates,Thus,they can be deformed to a large extend
Our mill could produce hot rolled seamless tube in ASTM,EN,GB,BS,DIN,GOST,JIS standard,it is our great honor to pass API,CE,ISO,CCS certificate,it proves that our goods are meet the high quality,this make us has obtained a great huge number of customers from abroad.

1. Executive standards:

ASTM A106,ASTM A53,API 5L,EN10216,EN10217,EN10219,EN10210,BS3601,BS3087,DIN1626,DIN1629,DIN17175,GOST 8732,GOST 8734 and so on
2. Specification range
OD: 1/8"-36"(219mm,325mm,406mm,508mm,457mm,558mm, 609mm,914mm,660mm,711mm,762mm is our advantages)


L290,L360,P235GH,P265GH,S275JRH,S275J2H, S355J2H,ST35.8,ST45,ST45.8,ST44.2,ST44.3,ST52.3 and so on
4. Testing: We accept any test as your required
5. Packing of hot rolled seamless tube: Bundles,black painted,capped ends

WEIGHT per Kg. / Mtr.
ASTM PIPE SCHEDULE: Wall Thickness in MM, Wt = Weight in Kg. / Mtr.
NominalPipe sizeOD mmSchedule STDSchedule 40
MmInch WallWt.WallWt.
3 1/810.31.730.371.730.357
10 3/817.12.310.842.310.84
321 1/442.23.563.393.563.38
401 1/248.33.684.053.684.05
652 1/2735.28.635.168.63

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Q:How to distinguish seamless pipe and welded pipe?
The way to distinguish seamless pipes and welded pipes is to see if there is weld marks on the port.
Q:How much is 4 inches steel tube MM?
The standard wall thickness is 4mm, so the outer diameter is 114mm.
Q:What is the buckling type thin-wall steel pipe? What is a tight set of thin-walled steel tubes? What's the difference between the two?
The thread of the tightening (JDG) joint is unified with an outer thread, a wall thickness of 1.5mm, and a button (KBG). The thread of the joint is an internal thread, and the wall thickness is 1.0mm. Withholding type joint for the use of the same company and pipe connection to matching products with complete connection clamp buckle. Fastening and pressing type correctly connected and locked after no need to do a cross ground.
Q:Which is more load-bearing, the same thickness of steel pipe and steel bar?
The magnitude of the axial force acting on the steel member is only related to three factors, namely, the strength of the material, the sectional area of A and the longitudinal stability factor of F.
Q:The difference between 12Cr1MoVG alloy steel tube and 15CrMo
15CrMo is a steel Pearlite Heat-resistant steel, has high heat resistance at high temperature (b = 440MPa) and antioxidant activity, and has certain ability of anti hydrogen corrosion. Because of the high content of Cr, C and other alloy elements in steel, the tendency of hardening of steel is obvious, and the weldability is poor.
Q:Where is the difference between seamless steel pipe and welded pipe?
Seamless steel tube is formed during rolling. Welded steel pipes need to be welded after coiling, and spiral welding and direct welding are generally used. Seamless performance is better, of course, the price is higher.
Q:What is the diameter of the steel tube DN20?
The symbol is DN, the unit is mm, but omitted to write. Also available in English in.
Q:Is the diameter of the steel tube indicated by the outer diameter by the wall thickness or by the inside diameter by the wall thickness?
Seamless steel pipe specifications are: outer diameter, wall thickness, material. Three of these reflect its main features.Welding pipe specifications are: nominal diameter (internal diameter), galvanized or non plated
Q:Can stainless steel pipes spray black paint?
Yes, after painting, I usually touch hands and paint off in 2 years or so
Q:How seamless steel tube is formed?
Seamless steel tubes are formed by cold drawing and hot rolling.

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