ASTM Seamless Stainless Pipe L245 L360 A53 API 5L Gr.B/X42/X46 For Oil Gas Field
Product Overview
API 5L Grade B Seamless Pipes are engineered for transporting various fluids and gases across multiple industries including petroleum, petrochemical, and natural gas. These pipes demonstrate exceptional performance in sour well applications, where their resistance to sulfide stress cracking prevents the brittleness caused by hydrogen sulfide deposition that commonly affects conventional steel pipes.
API 5L X42 Pipe (L290 Pipe)
API 5L X42 pipe is classified by its minimum yield strength of 42,100 Psi (290 MPa), positioning it as a medium-grade option superior to Grade B. This specification ensures reliable performance in demanding applications.
API 5L X46 Pipe
Manufactured under strict API specifications, X46 carbon steel pipes are engineered for petroleum and natural gas industries. The grade designation corresponds to yield strength, with manufacturing processes including hot rolling (enhancing ductility), cold drawing (improving yield strength), and heat treatment (increasing toughness). Composition includes carbon, manganese, phosphorus, sulfur, silicon, and copper.
Applications
API 5L X42 Applications
- Oil refineries
- Pressure vessels
- Power generators
- Sugar production facilities
- Boiler appliances
- Steel manufacturing
- Fluid and gas transmission pipelines
API 5L X46 Applications
API 5L X46 line pipes serve as petroleum-transporting pipelines for both onshore and offshore operations. These steel pipes are extensively used throughout the petroleum industry to transport oil and natural gas from extraction sites to refineries and processing facilities. They also find application in construction for transporting water and other fluids.
Chemical Composition
| Grade |
C |
Mn |
P |
S |
Cu |
Ni |
Cr |
Mo |
V |
Ti |
Nb |
| API 5L B |
0.28 |
1.2 |
0.03 |
0.03 |
0.5 |
0.5 |
0.5 |
0.15 |
c,d |
c,d |
d |
| API 5L X42 |
0.28 |
1.3 |
0.03 |
0.03 |
- |
- |
- |
- |
d |
d |
d |
| API 5L X46 |
0.28 |
1.4 |
0.03 |
0.03 |
- |
- |
- |
- |
d |
d |
d |
Mechanical Properties
API 5L Grade B Mechanical Properties
| Grade |
Tensile Strength Ksi (MPa), min |
Yield Strength Ksi (MPa), min |
Elongation (%) |
| API 5L B |
60000 [415] |
35000 [240] |
e=625000[1940]A0.2/U0.9 or refer to standard |
API 5L X42 Mechanical Properties
| Pipe Type |
Yield Strength (Minimum) |
Tensile Strength (Minimum) |
Elongation (Minimum) |
| Seamless and Welded Pipe Bodies |
290 MPa (42,100 psi) |
415 MPa (60,200 psi) |
c |
API 5L X46 Mechanical Properties
| Pipe Grade |
Yield Strength (PSI Min) |
Tensile Strength (PSI Min) |
Elongation (in 2in Af % min) |
| X46 |
46,400 |
63,100 |
c |
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