Hot Sale Seamless Carbon Steel Pipe/Round Pipe/Square Pipe

Hot Sale Seamless Carbon Steel Pipe/Round Pipe/Square Pipe
Introduction to Seamless Pipe:

A seamless pipe is a type of steel pipe that is manufactured without any welding seam or joint along its length. It is produced by piercing a solid billet of steel to form a hollow cylindrical shape, which is then elongated and shaped into the desired diameter and thickness through hot or cold rolling processes. Seamless pipes are widely used in various industries for conveying fluids, gases, and solids under high-pressure and high-temperature conditions.

Grades : Q 235,Q355,S235,S235JR, SS400, A36,A572 etc.

Product Name

Seamless Steel Pipe

Material

A53 Gr.B,A36,ST52,ST35,ST42,ST45,X42,X46,X52,X60,X65X70

Standard

API 5L,ASTM A106 Gr.B,ASTM A53 Gr.B,ASTM A179/A192,ASTM A513,ASTM A671,ASTM A672,BS EN 10217,BS EN10296,BS EN 39,BS6323,DIN EN10217

Certificates

API 5L,ISO9001,SGS,BV,CCIC

Outer Diameter

15mm-1200mm

Wall Thickness

SCH10,SCH20,SCH30,STD,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XS,XXS

Length

1m,4m,6m,8m,12m according to buyer's request

Surface Treatment

black paint,varnish,oil,galvanized,anti-corrosion coated

Marking

Standard marking,or according to your request.Marking Method:Spray white paint

End Treatment

Plain End/Bevelled End/Grooved End/Threaded End With Plastic Caps

Technique

Hot Rolled or Cold Rolled ERW

Package

Loose package;Packaged in bundles(2Ton Max);bundled pipes with slings at the both end for easy loading and discharging;wooden cases;waterproof woven bag

Test

Chemical Component Analysis,Mechanical Properties,Technical Properties,Exterior Size Inspection,hydraulic testing,X-ray Test

Application

Liquid delivery,structure pipe,construction,petroleum cracking,oil pipe,gas pipe


                                                                                                     

                                                                                                             Classfication of carbon seamless steel pipe


TypesApplication
Structure PurposesGeneral structure and mechanical
Liquid ServicesPetroleum, gas and other fluids conveying
Low and Medium Pressure Boiler TubeSteam 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
Furnace tubes, heat exchangers tubesFurnace tubes, heat exchangers


                                                                                                

                                                                                                           Tolerances of carbon seamless steel pipe


Pipe typesPipe sizes(mm)Tolerances
Hot rolledOD<50±0.50mm
OD≥50±1%
WT<4±12.5%
WT 4~20+15%, -12.5%
WT>20±12.5%
Cold drawnOD 6~10±0.20mm
OD 10~30±0.40mm
OD 30~50±0.45
OD>50±1%
WT≤1±0.15mm
WT 1~3+15%, -10%
WT >3+12.5%, -10%

                                                                                                  Chemical components & mechanical properties

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 SA179A1790.06-0.18-0.27-0.63≤0.035≤0.035≥325≥180
ASTM SA192A1920.06-0.18≤0.250.27-0.63≤0.035≤0.035≥325≥180
API 5L PSL1A0.22-0.900.0300.030≥331≥207
B0.28-1.200.0300.030≥414≥241
X420.28-1.300.0300.030≥414≥290
X460.28-1.400.0300.030≥434≥317
X52-1.400.0300.030≥455≥359

X560.28-1.400.0300.030≥490≥386
X600.28-1.400.0300.030≥517≥448
X650.28-1.400.0300.030≥531≥448
X700.28-1.400.0300.030≥565≥483
API 5L PSL2B0.24-1.200.0250.015≥414≥241
X420.24-1.300.0250.015≥414≥290
X460.24-1.400.0250.015≥434≥317
X520.24-1.400.0250.015≥455≥359
X560.24-1.400.0250.015≥490≥386
X600.24-1.400.0250.015≥517≥414
X650.24-1.400.0250.015≥531≥448
X700.24-1.400.0250.015≥565≥483
X800.24-1.400.0250.015≥621≥552