carbon seamless steel pipe, It's a long strip of steel. The steel pipe has a hollow section and is widely used for conveying fluid pipelines, such as conveying oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe has the same bending and torsional strength and lighter weight. It is a kind of economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile drive shaft, bicycle frame and steel scaffolding used in construction. Making ring parts with steel pipe can improve material utilization rate, simplify manufacturing process, save material and processing time, such as rolling bearing ring, jack sleeve, etc., steel pipe has been widely used to manufacture. Steel pipe or all kinds of conventional weapons indispensable material, gun barrel, barrel and so on to make steel pipe. Steel pipe can be divided into round pipe and special-shaped pipe according to the shape of cross-sectional area. Since the volume of a circular surface is maximum with equal perimeters, more fluid can be transported with a circular tube. In addition, the annular section under internal or external radial pressure, the force is more uniform, so the vast majority of steel tubes are round. Manufacturing ring parts with steel pipe can improve material utilization rate, simplify manufacturing process, save material and processing time, such as rolling bearing ring, jack sleeve, etc., has been widely used to manufacture steel pipe.GB8163 "Seamless steel pipe for fluid Transportation", GB6479 "High pressure seamless steel pipe for fertilizer equipment", GB9948 "Seamless steel pipe for Petroleum Cracking", GB3087 "Seamless steel tubes for Low and medium pressure boilers", GB5310 "Seamless steel tube for high pressure boiler".(1) carbon seamless steel pipe,the importance of structure heavy industrial building structure, large span structure, high-rise or super high-rise civil building structure or structures and other important structures, should consider the use of good quality seamless steel pipe, for general industrial and civil building structure, according to the nature of the work, the use of ordinary quality seamless steel pipe. (2) carbon seamless steel pipe,The structure bearing dynamic load directly and the structure in strong earthquake area should choose seamless steel pipe with good comprehensive performance; Generally under static load structure can choose the lower price of seamless steel pipe. (3) carbon seamless steel pipe, Connection method The welding process will produce welding deformation, welding stress and other welding defects, which may lead to cracks or brittle fracture of the structure. Therefore, welding structure should be strict to material requirements. (4) carbon seamless steel pipe,The temperature and environment of the structure, seamless steel pipe is easy to be cold and brittle at low temperature, so the structure working at low temperature, especially the welding structure, should choose the killed steel with good low temperature brittle fracture resistance. In addition, the open air structure of Taiyuan seamless steel pipe is easy to produce aging, harmful medium effect of seamless steel pipe is easy to corrosion, fatigue and fracture, should also be different to choose different materials. (5) too seamless steel pipe thickness, thin seamless steel pipe rolling times, rolling compression ratio is large, large thickness of seamless steel pipe compression ratio is small, so the thickness of precision steel pipe is not only small strength, but also poor plasticity, impact toughness and welding performance. Therefore, the welded structure with large thickness should use better seamless steel pipe.
Executive Standard
Grade / Material
Product Name
ASTM A53
A, B
Black and Hot-Dipped Zinc-Coated Steel Pipes Welded and Seamless
ASTM A106
A, B
Seamless Carbon Steel for High Temperature Service
ASTM A179
Low Carbon Steel
Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger and Condenser Tubes
ASTM A192
Low Carbon Steel
Seamless Carbon Steel Boiler Tubes for High Pressure
ASTM A210
A1, C
Seamless Medium-Carbon and Alloy Steel Boiler and Super heater Tubes
ASTM A213
T5, T11, T12, T22 TP 347H
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat- Exchanger Tubes
ASTM A312
TP304/304L, TP316/316L
Seamless Steel Pipe for Stainless Materials
ASTM A333
Gr.6
Seamless and Welded Steel Pipe for Low-Temperature Service
ASTM A335
P9, P11, P22
Seamless Ferritic Alloy Steel Pipe for High-Temperature Service
ASTM A519
4130,4140
Seamless Carbon and Alloy Steel for Mechanical Tubing
ASTM A789
Seamless Ferritic/Austenitic Stainless Steel Tubing for General Service
Executive Standard
Grade / Material
Product Name
API Spec 5CT
J55, K55, N80, L80,C90, C95, T95, P110, M65
Specification for Casing and Tubing
API Spec 5L PSL1 / PSL2
A,B X42, X46, X52, X56, X60, X65,. X70
Specification for Line Pipe
Executive Standard
Grade / Material
Product Name
DN 17175/EN10216-2
ST35, ST45, ST52, 13CrMo44
Seamless Steel Tube for Elevated Temperature
DIN 2391/EN10305-1
St35, St45, St52
Cold Drawn Seamless Precision Pipe
DIN 1629/EN10216-1
St37, St45, St52
Seamless Circular unalloyed Steel Tubes Subject to Special Requirements
Product
Seamless Steel Pipe For Exploration & Production
OD
13.72 mm - 914.4 mm
WT
1.65 mm - 22 mm
Length
0.5 m - 20 m
Standard
API 5L PSL1 /PSL2
Material
GR.B/X42/46/X52/56/X60/65/X70/80
Usage
Chilled Water Pipe, Drinking water Pipe, W aste Water Pipe, Structural Tube, Fluid Pipe, Boiler Pipe, Oil and Gas Transportation Pipe, Mechanical Structure Pipe
Product
Seamless Steel Pipe For Exploration & Production
OD
13.72 mm - 914.4 mm
WT
1.65 mm - 22 mm
Length
0.5 m - 20 m
Standard
API 5L PSL1 /PSL2
Material
GR.B/X42/46/X52/56/X60/65/X70/80
Usage
Chilled Water Pipe, Drinking water Pipe, W aste Water Pipe, Structural Tube, Fluid Pipe, Boiler Pipe, Oil and Gas Transportation Pipe, Mechanical Structure Pipe
API 5L PSL1
Standard
Grade
Chemical Components
Tensile STrength(min)
Yield Strength(min)
C
Mn
P
S
Mpa
Mpa
API 5L
A
0.22
0.90
0.030
0.030
331
207
PSL1
B
0.28
1.20
0.030
0.030
414
241
X42
0.28
1.30
0.030
0.030
414
290
X46
0.28
1.40
0.030
0.030
434
317
X52
0.28
1.40
0.030
0.030
455
359
X56
0.28
1.40
0.030
0.030
490
386
X60
0.28
1.40
0.030
0.030
517
414
X65
0.28
1.40
0.030
0.030
531
448
X70
0.28
1.40
0.030
0.030
565
483
API 5L PSL2
Standard
Grade
Chemical Components
Tensile STrength(min)
Yield Strength(min)
C
Mn
P
S
Mpa
Mpa
API 5L
B
0.24
1.20
0.025
0.015
414
241
PSL2
X42
0.24
1.30
0.025
0.015
414
290
X46
0.24
1.40
0.025
0.015
434
317
X52
0.24
1.40
0.025
0.015
455
359
X56
0.24
1.40
0.025
0.015
490
386
X60
0.24
1.40
0.025
0.015
517
414
X65
0.24
1.40
0.025
0.015
531
448
X70
0.24
1.40
0.025
0.015
565
483
X80
0.24
1.40
0.025
0.015
621
552
STANDARDS
PRODUCTS
RANGES
IS:1239 (Part-I)
Mild Steel Tubes, Tubular
15mm NB - 150mm NB
IS:1161
Mild Steel Tubes for Structural purpose
15mm NB - 200mm NB
IS:3601
Mild Steel tubes for Mechanical & General Eng. purpose
20mm x 0.80mm to 165.10 x 7.00 mm
IS:3589
ERW Pipes for water Gas & Sewage
168.3 x 4.00 mm to 219.1 x 7.00mm
IS:9295
Steel Tubes for Idlers for Belt conveyors
63.5 x 4.00 mm to 219.1 x 7.0 mm
IS:4270
Steel Tubes for Water Wells
114.3 x 5.00mm to 219.1mm x 7.1mm
IS:7138
Steel Tubes for furniture
20.0 x .60mm to 60.0 x 2.0mm
IS:4923
Hollow Steel sections for structural purpose
12.5 x 12.5 x 0.80 to 150 x 150 x 6.0mm 10 x 20 x 0.80mm to 150 x 200 x 6.0mm
IS:3074
Steel Tubes for Automobile purpose
19.7 x 1.00mm to 101.6 x 6.0mm
BS:1387
Screwed & Socket Steel Tubes & Tubular
½"NB to 6″NB 2.00 mm - 5.40 mm wall thick
BS:3601
Steel Pipes & Tubes for pressure purpose
½"NB to 6″NB 2.00 mm - 7.00 mm wall thickness
BS:6323
Steel tubes for mechanical & general engineering purposes
GB8163 "Seamless steel pipe for fluid Transportation", GB6479 "High pressure seamless steel pipe for fertilizer equipment", GB9948 "Seamless steel pipe for Petroleum Cracking", GB3087 "Seamless steel tubes for Low and medium pressure boilers", GB5310 "Seamless steel tube for high pressure boiler".(1) carbon seamless steel pipe,the importance of structure heavy industrial building structure, large span structure, high-rise or super high-rise civil building structure or structures and other important structures, should consider the use of good quality seamless steel pipe, for general industrial and civil building structure, according to the nature of the work, the use of ordinary quality seamless steel pipe. (2) carbon seamless steel pipe,The structure bearing dynamic load directly and the structure in strong earthquake area should choose seamless steel pipe with good comprehensive performance; Generally under static load structure can choose the lower price of seamless steel pipe. (3) carbon seamless steel pipe, Connection method The welding process will produce welding deformation, welding stress and other welding defects, which may lead to cracks or brittle fracture of the structure. Therefore, welding structure should be strict to material requirements. (4) carbon seamless steel pipe,The temperature and environment of the structure, seamless steel pipe is easy to be cold and brittle at low temperature, so the structure working at low temperature, especially the welding structure, should choose the killed steel with good low temperature brittle fracture resistance. In addition, the open air structure of Taiyuan seamless steel pipe is easy to produce aging, harmful medium effect of seamless steel pipe is easy to corrosion, fatigue and fracture, should also be different to choose different materials. (5) too seamless steel pipe thickness, thin seamless steel pipe rolling times, rolling compression ratio is large, large thickness of seamless steel pipe compression ratio is small, so the thickness of precision steel pipe is not only small strength, but also poor plasticity, impact toughness and welding performance. Therefore, the welded structure with large thickness should use better seamless steel pipe.
