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Seamless Steel Pipe

Used for oil and gas transportation,the general structure,mechanical structure;

 

Types of Seamless Steel Pipe

Types Uses
Structure PurposesGeneral structure and mechanical 
Liquid ServicesPetroleum,gas and other fluids conveying
Low and Medium Pressure Steam 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

     QQ截图20170320153049.png

     Size:OD:13.72-914.4MM / WT:1.65-22MM

     Length:0.5mtr-12mtr

    

     Standard:API5L,ASTM A106/A53,DIN2391,ASTM A179/A192,EN10210,EN10208

     Material:GR.B,X42,X46,X52,S355J0H,S355J2H,20#,45#

    

     Heat treatment:Annealed,Normalized,Stress relieved,Cold finished,Quenched and Tempered

     Delivery Condition:BKS,NBK,BK,BKW,GBK(+A),NBK(+N),BK(+C)

 

     Test:Chemical Component Analysis,Mechanical Properties and other inspection

     Third Inspection:BV,SGS,Lloyds etc.

     Pipe ends:with plain ends,with beveled ends,profiled

     Coatings and linings:bared and coated

 

Dimension Tolerances of Seamless Steel Pipe

Pipe TypesPipe Size(mm)Tolerances
Hot rolledOD <50 ±0.50mm
 ≥50 ±1
WT <4 ±12.5
 ≥4-20 +15%,-12.5%
 >20 ±12.5%
Cold drawnOD 6-10 ±0.20mm
 10-30 ±0.40mm
 30-50 ±0.45mm
 >50 ±1%
WT <1 ±0.15MM
 >1-3 ±15%,-10%
 >3 +12.5%,-10%
StandardGradeCHEMICAL COMPOSITION(%)MECHANICAL PROPERTIES
CMnSiPSMoCrV

(Mpa)YLELD 

STRENGTH

(Mpa)TENSILE

STRENGTH

ELONGATION 

       (%)

ASTM A53A≤0.25≤0.95/≤0.05≤0.06≤0.15≤0.40≤0.08≥205≥330≥29.5
B≤0.30≤1.2/≤0.05≤0.06≤0.15≤0.40≤0.08≥240≥415≥29.5
ASTM A106A≤0.300.29-1.06≥0.10≤0.035≤0.035≤0.15≤0.40≤0.08≥240≥415≥30
B≤0.350.29-1.06≥0.10≤0.035≤0.035≤0.15≤0.40≤0.08≥275≥485≥30
ASTM A179A1790.06-0.180.27-0.63/≤0.035≤0.035


≥180≥325≥35
ASTM A192A1920.06-0.180.27-0.63≤0.25≤0.035≤0.035


≥205≥330≥35
StandardGradeCHEMICAL COMPOSITION(%)(Min)YLELD STRENGTH(Min)TENSILE STRENGTH
CMnPSMpaMpa
API5L PSL1A0.220.90.030.03331207
B0.281.20.030.03414241
X420.281.30.030.03414290
X460.281.40.030.03434317
X520.281.40.030.03455359
X560.281.40.030.03490386
X600.281.40.030.03517414
X650.281.40.030.03531448
X700.281.40.030.03565483

Dimension and Specification of Seamless Steel Pipe

OutDiameterWall Thickness(mm)
(mm)10111213141516171819202122232425262728293035
73

























76.1

























82.5

























88.9

























101.6

























114.3

























127

























139.7

























152.4

























159

























168.3

























177.8

























193.7

























203

























219.1

























244.5

























273

























298.5

























323.8

























339.7

























355.6

























406.4

























457.2

























473.1

























508

























530

























558.8

























609.6

























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