Metal Tubular Products API 5L X52 To handle the transportation of oil and gas under conditions of high pressure and temperature, pipes are particularly built. In particular for sour service and other demanding applications, hardness and impact resistance are strongly prioritized during the construction of these pipes. These pipelines are especially prone to stress corrosion since sour wells contain significant quantities of sulfur. Manufacturers frequently treat the surface of the pipes with anti-corrosion coatings like oil, varnish, or black paint to reduce this risk. This extra layer of defense increases the pipes' ability to resist corrosion, ensuring their durability and dependability in challenging conditions.
The specification of the American Petroleum Institute Steel line pipe that is welded and seamless is covered by API 5L X52 PSL2 pipe. This is steel pipe used in the petroleum and natural gas sectors for pipeline transportation systems. For moving gas, water, and oil, use API 5L. Only the capabilities of the manufacturer limit the size range. The minimum yield strength and ultimate tensile strength for grade X52 are 52000 PSI and 66000 PSI, respectively.The minimum yield strength of API 5L X52 pipe, often known as L360 pipe, is 52 Ksi (360 Mpa). It is a medium grade in API 5L and meets O 3183 requirements; it is used for transmissions in oil and gas pipelines.
An oil and gas transportation pipeline's steel pipes must meet the specifications of API 5L X52. The API 5L X52 specification specifies specifications for chemical composition, mechanical qualities, and parameters such pipe wall thickness, outer diameter, and pipe schedule. It applies to both seamless and welded pipes. The pipe is suited for high-pressure applications and has a high yield strength of 52,000 psi. It has a grade that is equivalent to isO3183 L360 and has the EN10208 L360MB, GB/T9711 L360, or ASTM specification A53 Grade B.
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Specification:
Standard: API 5L X56 PSL1
Size Range: Nominal pipe sizes from 1/2" to 48" (15mm to 1200mm)
Wall Thickness: Schedule 10 to Schedule XXS (1.7mm to 73mm)
Steel Grade: X56 (designated by the minimum yield strength of 390 MPa or 56,900 psi)
Chemical Composition of API_5L_x56_psl1_carbon_steel_seamless_pipe
| Element | Composition Range (%, max) |
| Carbon (C) | 0.22 |
| Manganese (Mn) | 1.40 |
| Phosphorus (P) | 0.025 |
| Sulfur (S) | 0.015 |
| Silicon (Si) | 0.45 |
Mechanical Properties of API_5L_x56_psl1_carbon_steel_seamless_pipe
| Mechanical Property | Minimum Yield Strength (MPa) | Minimum Tensile Strength (MPa) | Minimum Elongation (%) |
| API 5L X52 PSL2 | 360 | 460 | 21 |
Advantages of API_5L_x56_psl1_carbon_steel_seamless_pipe:
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
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Applications Industry
| Pharmaceutical Equipment | Chemical Equipment |
| Sea Water Equipment | Heat Exchangers |
| Heat Exchangers | Gas Processing |
| Condensers | Specialty Chemicals |
| Pulp and Paper Industry | Pharmaceuticals |
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