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Seamless Steel Pipe(SMLS Pipe)

Seamless Steel Pipe & Tube, Carbon Seamless Steel Pipe,SMLS Pipe & Tube, Black Seamless Steel Pipe                 

Classfication of carbon seamless steel pipe

Types Application
Structure Purposes
General structure and mechanical
Liquid Services
Petroleum, gas and other fluids conveying
Low and Medium Pressure
Steam and boiler manufacturing
Hydraulic Pillar Service
Hydraulic support
Auto Semi-shaft Casing
Auto sem-shaft casing
Line Pipe
Oil and gas conveying
Tubing and Casing
Oil and gas conveying
Drill Pipes
Well drilling
Geological Drilling Pipe
Geological drilling
Petroleum Cracking Tubes
Furnace tubes, heat exchangers


Standard of carbon seamless steel pipe

Standard Grade Chemical Components (%)
Mechanical Properties
ASTM A53 C
Si
Mn
P
S
Tensile 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 A106 A
≤0.30
≥0.10
0.29-1.06
≤0.035
≤0.035
≥415
≥240
B
≤0.35
≥0.10
0.29-1.06
≤0.035
≤0.035
≥485
≥275
ASTM A179 A179 0.06-0.18
- 0.27-0.63
≤0.035
≤0.035
≥325 ≥180
ASTM A192 A192 0.06-0.18
≤0.25
0.27-0.63
≤0.035
≤0.035
≥325
≥180
API 5L PSL1 A 0.22
- 0.90
0.030
0.030
≥331
≥207
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
≥448
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 B
0.24
- 1.20
0.025
0.015
≥414
≥241
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

GB standard Seamless steel pipe for structural purpose GB/T8162-2008
Seamless steel pipe for liuid service GB/TB8163-2008
Seamless steel tubes for low and medium boiler GB/3087-1999
Seamless steel tubes for high pressure boiler GB/5310-1995
Seamless carbon steel marine tubes GB/T5312-1999
High-pressure seamless steel tubes for chemical fertilizer equipments GB/6479-2000
ASTM standard Black and hot-dipped zinc-coated steel pipes welded and seamless ASTM A53
Seamless carbon steel for high temperature service ASTM A106
Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes ASTM A179
Seamless carbon steel boiler tubes for high pressure ASTM A192
Seamless Medium-carbon boiler and superheater tubes ASTM A210
Seamless carbon for mechanical tubing ASTM A519
API standard Seamless steel pipe for casing API Spec 5CT
Seamless steel pipe for line pipe API Spec 5L
DIN standard Seamless steel tube for elevated temperture DIN 17175
Cold drawn seamless prevision pipe DN2391
Seamless circular unalloyed steel tubes subject to special requirements DIN 1629

Tolerances of carbon seamless steel pipe

Pipe types Pipe sizes(mm) Tolerances
Hot rolled OD<50 ±0.50mm
OD≥50 ±1%
WT<4 ±12.5%
WT 4~20 +15%, -12.5%
WT>20 ±12.5%
Cold drawn OD 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%

Carbon seamless steel pipe is a kind of strip steel. Steel pipe with hollow cross-section, a large number of pipes used to transport fluid, such as the transportation of oil, natural gas, gas, water and some solid materials such as pipes. Steel and round steel and other solid steel compared to the same bending strength in the same bending, lighter weight, is an economic section of steel, is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, Bicycle frames and steel construction scaffolding. The use of carbon seamless steel pipe manufacturing ring parts can improve material utilization, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jackets, etc., has been widely used to manufacture steel pipe. 

seamless steel pipe specifications


Pipe is good-looking on appearance.

                                                                                                                                                       ___Armstrong (Mexico)

Logistics is fast and no delay the project schedule.

                                                                                                                                                       ___Bartholomew (Belgium)

Some of pipes is rusty, but not a big problem.

                                                                                                                                                        ___Augustine (Kenya)

Painting is nice.

                                                                                                                                                         ___Catherine (Thailand)

The quality of tubes for construction is not too bad.         

                                                                                                                                                         ___Donna (Columbia)

Professional sales man, next cooperation for you.

                                                                                                                                                         ___Kevin (Singapore)

Price is competitive and make me get the project, thanks hunan stanard steel.

                                                                                                                                                         ___Pamela (Saudi Arabia)