ERW Steel Pipe
2017年12月8日
Pipe Fittings
2018年1月3日

Seamless Steel Pipe

Seamless Steel Pipe( SMLS Steel Pipe ),Seamless Steel Tube

Types of Seamless Steel Pipe from Our Factory

TypesUses
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 PipesGeological drilling
Petroleum Cracking TubesFurnace tubes, heat exchangers

Standards and Applications

StandardsGradesClass
APIAPI 5LLine pipe for pipeline transportation systems
API 5CTTubing and casing for wells
API 5DPDrill Pipe for well drilling
ASTMASTM A53Used as structural steel or for low-pressure plumbing
ASTM A106seamless carbon steel pipe for high-temperature service
ASTM A335for seamless ferritic alloy-steel pipe for high-temperature service
ASTM A213for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes
ASTM A179for seamless Cold-drawn low-carbon steel heat-exchanger and condenser tubes
ASTM A192for seamless carbon steel boiler tubes for high-pressure service
ASTM A210for seamless medium-carbon steel boiler and superheater tubes
ASTM A333for seamless steel pipe for low-temperature service and other applications with required notch toughness
ASTM A519for seamless carbon and alloy steel mechanical tubing
ASTM A252for seamless and welded steel pipe piles
DINDIN 17175for heat resistant seamless steel pipe lines
DIN 1629for seamless circular tubes of non alloys steels wth special quality requirements
DIN 2391for cold drawn or cold rolled precision seamless steel tubes
JISJIS G3454seamless carbon steel pipe for pressure service
JIS G3456seamless carbon steel pipe for high temperature service
JIS G3461seamless carbon steel pipe for boiler and heat exchanger
ENEN 10210for hot finished seamless structural hollow sections of non-alloy steels
EN 10216seamless steel tubes for pressure purposes
BSBS 3059for carbon,alloy and austenitic stainless steel tubes with specified elevated temperature properties

Dimension Tolerances of Seamless Steel Pipe
Pipe typesPipe Szie(mm)Tolerances
Hot rolledOD<50±0.50mm
≥50±1%
WT<4±12.5%
≥4~20+15%, -12.5%
>20±12.5%
Cold drawnOD6~10±0.20mm
10~30±0.40mm
30~50±0.45
>50±1%
WT<1±0.15mm
>1~3+ 15%, – 10%
>3+ 12.5%, – 10%

 

TUBE FOR STRUCTURAL PURPOSES

Sizes: Out Diameter: 1-1/4″-16″, Wall Thickness: 0.109″-0.562″

Standard:ASTM A53, ASTM A106, ASTM A500/501-98, ASTM A519-98, JIS G3441-1994, JIS G3444-1994, BS EN 10210-1

Application:Used in the general structure and the mechanism, including construction, machinery, transportation

 

BOILER PIPE

Sizes: Out Diameter: 6.0mm-114.0mm, Wall Thickness: 1.0mm-15.0mm

Standard: GB3087-1999, ASTM A179, ASTM A106, JIS G3454
Application:Used for manufacturing superheated pipelines, the steam pipe, boiling water tube, flue tube, small flue tube, etc.

 

SEAMLESS STEEL PIPES FOR LIQUID SERVICES

Sizes: Out Diameter: 19.05-168.3mm, Wall Thickness: 2.31-14.27mm

Standard:GB/T8163-1999, ASTM A53-98, JIS G3452-1998, JIS G3454-1998, ASTM A106, DIN 1629-1984
Application:For conveying of petroleum, gas and other fluids

 

LINE PIPES

Sizes: Out Diameter: 73-630mm, Wall Thickness: 6-35mm
Standard:API 5L
Application:For gas, water, transportation in Petroleum and natural gas industries

DRILL PIPES

Sizes: Out Diameter: 2-7/8″-6-5/8″, Wall Thickness: up to 0.813″
Standard:API 5D
Application:For well drilling

 

PETROLEUM CRACKING PIPES

Sizes: Out Diameter: 1.315″- 20″, Wall Thickness: 0.133″-0.500″

Standard:GB9948-1988
Application:For manufacturing of furnace tubes, heat exchangers and pipelines in refineries

Chemical Composition and Mechanical Properties

StandardGradeChemical Components (%)Mechanical Properties
cSiMnPSMoCrVTensile STrength(Mpa)Yield STrength(Mpa)Elongation

(%)

ASTM A53A≤0.25/≤0.95≤0.05≤0.06≤0.15≤0.40≤0.08≥330≥205≥29.5
B≤0.30/≤1.2≤0.05≤0.06≤0.15≤0.40≤0.08≥415≥240≥29.5
StandardGradeChemical Components(%)Mechanical Properties
cSiMnPSMoCrVTensile STrength

(Mpa)

Yield STrength

(Mpa)

 Elongation(%)
ASTM A106A≤0.30≥0.100.29-1.06≤0.035≤0.035≤0.15≤0.40≤0.08≥415≥240≥30
B≤0.35≥0.100.29-1.06≤0.035≤0.035≤0.15≤0.40≤0.08≥485≥275≥30
StandardGradeChemical Components(%)Mechanical Properties
cSiMnPSTensile STrength(Mpa)Yield STrength(Mpa)Elongation(%)
ASTM A179A1790.06-0.18/0.27-0.63≤0.035≤0.035≥325≥180≥35

StandardGradeChemical Components(%)Mechanical Properties
cSiMnPSTensile STrength(Mpa)Yield STrength(Mpa)Elongation(%)
ASTM A192A1920.06-0.18≤0.250.27-0.63≤0.035≤0.035≥325≥180≥35
StandardGradeChemical ComponentsTensile STrength(min)Yield Strength(min)
CMnPSMpaMpa
API 5L PSL1A0.220.900.0300.030331207
B0.281.200.0300.030414241
X420.281.300.0300.030414290
X460.281.400.0300.030434317
X520.281.400.0300.030455359
X560.281.400.0300.030490386
X600.281.400.0300.030517414
X650.281.400.0300.030531448
X700.281.400.0300.030565483
StandardGradeChemical ComponentsTensile STrength(min)Yield Strength(min)
CMnPSMpaMpa
API 5L PSL2B0.241.200.0250.015414241
X420.241.300.0250.015414290
X460.241.400.0250.015434317
X520.241.400.0250.015455359
X560.241.400.0250.015490386
X600.241.400.0250.015517414
X650.241.400.0250.015531448
X700.241.400.0250.015565483
X800.241.400.0250.015621552

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