API 5CT oilfield tubing, petroleum steel tubing
API 5CT Tubing,API 5CT Petroleum Tubing, Oilfield Steel Tubing, BORUN Casing Tubing Manufacturer
2016年7月26日
API 5CT Casing and Tubing Coupling
API CASING COUPLING ,TUBING COUPLINGS
2016年7月29日

SEAMLESS STEEL PIPE

SMSL PIPE,SEAMLESS STEEL PIPE

SMSL PIPE,SEAMLESS STEEL PIPE

Seamless (SMLS) steel pipe and seamless line pipe

Seamless Carbon Steel Pipes use steel billets as basic material. It is the kind of pipelines without joints around the body which is good to be requested conveying liquids (such as oil, gas, water), so it has a very high intake amount in the oil as well as gas industries all over the world.

SPECIFICATIONS of Seamless (SMLS) steel pipe

  • Hot Rolled: 88.9 mm ~ 508 mm.
  • Hot Expanded: 457mm ~ 914.4 mm.
  • Cold Drawn: 10.3 mm ~ 73mm
  • Length: 5.8m/ 6m/ 11.8m/ 12m or any fixed length as per customer request
  • Standard:API5L/ API5CT/ASTM A53/A106/A179/ A500/A501, JIS G3441/G3444/G3454, DIN 10210/10219, DIN 17175 etc
  • Steel Grade:20#, Q345, A106/53B, A179, S275, S355,GR.B/X42/X46/X56, ST44/37/ A500, J55-P110
  • SurfaceTreatment: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating.
  • Packing:Steel Strips bundled/In Bulk, Plastic Caps connected, waterproof plastic
  • End :Plain Ends ,Beveled End, Threaded with couplings
  • Application: Mainly used for high-temperature liquids transmission (water, heavy steam as well as various other high-temperature liquids), machinery, steel constructions, electricity industry, power plants etc

If you’re thinking about seamless steel pipelines for your following commercial pipe project, please call us and ask for a quote. As a prominent worldwide steel pipe vendor, we could provide you with the items you need and promptly ship your order to anywhere in the globe.

Energy-specific steel seamless tubular products created, checked, and generated in the CHINA.

The chemical composition and mechanical properties of our seamless steel pipe are those prescribed by present standards like API, ASTM, ASME etc . More information can be found below:

StandardGradeChemical Components (%)Mechanical Properties
ASTM A53CSiMnPSTensile STrength(Mpa)Yield STrength(Mpa)
A≤0.25≤0.95≤0.05≤0.06≥330≥205
B≤0.30≤1.2≤0.05≤0.06≥415≥240
ASTM A106A≤0.30≥0.100.29-1.06≤0.035≤0.035≥415≥240
B≤0.35≥0.100.29-1.06≤0.035≤0.035≥485≥275
ASTM A179A1790.06-0.180.27-0.63≤0.035≤0.035≥325≥180
ASTM A192A1920.06-0.18≤0.250.27-0.63≤0.035≤0.035≥325≥180
API 5L PSL1A0.220.900.0300.030≥331≥207
B0.281.200.0300.030≥414≥241
X420.281.300.0300.030≥414≥290
X460.281.400.0300.030≥434≥317
X520.281.400.0300.030≥455≥359
X560.281.400.0300.030≥490≥386
X600.281.400.0300.030≥517≥448
X650.281.400.0300.030≥531≥448
X700.281.400.0300.030≥565≥483
API 5L PSL2B0.241.200.0250.015≥414≥241
X420.241.300.0250.015≥414≥290
X460.241.400.0250.015≥434≥317
X520.241.400.0250.015≥455≥359
X560.241.400.0250.015≥490≥386
X600.241.400.0250.015≥517≥414
X650.241.400.0250.015≥531≥448
X700.241.400.0250.015≥565≥483
X800.241.400.0250.015≥621≥552

 

StandardGradeChemical compositionMechanical Properties
CSiMnPSCrNiCuTensile Strength(Mpa)Yield Strength(Mpa)Elongation(%)
GB/T8163100.07-0.140.17-0.370.35-0.65≤0.035≤0.035≤0.15≤0.25≤0.25335-457≥205≥24
200.17-0.240.17-0.370.35-0.65≤0.035≤0.035≤0.25≤0.25≤0.25410-550≥245≥20
Q3450.12-0.200.20-0.551.20-1.60≤0.045≤0.045490-665≥325≥21

Tolerance 

Pipe typesPipe Szie(mm)Tolerances
Hot rolledODAll±1% (min ±0.50mm)
WTAll+15%, -12.5%
Cold drawnOD6~10±0.20mm
10~30±0.40mm
30~50±0.45mm
>50±1%
WT≤1±0.15mm
>1~3+15% -10%
>3+12.5% -10%

pipe Classification

TypesApplication
Structure PurposesGeneral structure and mechanical
Liquid ServicesPetroleum, gas and other fluids conveying
Low and Medium PressureSteam and boiler manufacturing
Hydraulic Pillar ServiceHydraulic support
Auto Semi-shaft CasingAuto sem-shaft casing
Line PipeOil and gas conveying
Tubing and CasingOil and gas conveying
Drill PipesWell drilling
Geological Drilling PipeGeological drilling
Petroleum Cracking TubesFurnace tubes, heat exchangers

 

The seamless steel pipe manufacturing process starts with a solid, round steel billet.

This billet is after that heated to excellent temperature levels as well as extended and stoppeded a form till it takes the form of a hollow tube. As other steel pipe vendors will tell you, there are 3 wonderful advantages making a pipe this way.

Increased Pressure Ratings
The biggest benefit of seamless steel pipes is their boosted capacity to endure stress. The weakest factor in a bonded steel pipe is the bonded seam. Because a seamless steel pipe has actually not been bonded, it does not have that seam, making it equally strong around the whole circumference of the pipe.

It is likewise a lot easier to establish pressure estimations without being needed to take weld top quality right into factor to consider.

Although seamless pipe could occasionally be many more expensive than welded pipe, this boosted capacity to stand up to stress permits you to utilize pipes that are thinner and also lighter, which can assist reduce costs.

Seamless steel pipe is a constant extrusion of the alloy, indicating that it will certainly have a round sample that you could rely on, which is helpful when you’re mounting pipes or adding installations.

Strength Under Loads
Seamless steel pipe could in some cases be many more costly compared to other kinds of steel pipe, however it’s also a lot more trusted.

 

 

2 Comments

  1. could you tell me the making process of seamless pipe & tubes?

    • admin says:

      round tube → heating → ​​perforation → Heading → ​​annealing → ​​pickling → ​​oiled (copper) → multi-pass cold drawn (cold rolled) → blank tube → heat treatment → straightening →hydrostatic testing (testing) → mark → storage.

      The general cold strip mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the mechanical properties of the corresponding standard specifies. Cold rolled steel surface quality, appearance, dimensional accuracy better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.

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