API 5L X52 Pipe

Description

Product Description API 5L X52 Pipe

The API 5L X52 Pipe is a premium-grade steel pipe designed to meet the rigorous standards set by the American Petroleum Institute (API). Known for its exceptional strength and durability, it is widely used in industries such as oil and gas, petrochemicals, and water distribution systems. The “X52” designation signifies a minimum yield strength of 52,000 PSI, making it suitable for high-pressure and high-stress applications.

Manufactured using high-quality carbon steel, API 5L X52 pipes are available in two specification levels: PSL1 and PSL2. While PSL1 is the standard quality suitable for general applications, PSL2 offers enhanced mechanical properties, tighter tolerance, and additional testing requirements, ensuring superior performance in demanding environments.

These pipes come in both seamless and welded forms, providing versatility for various projects. Seamless pipes are ideal for applications requiring high strength and resistance to pressure, while welded pipes are more cost-effective and suitable for medium-pressure scenarios. Available in a wide range of sizes, wall thicknesses, and coatings, API 5L X52 pipes can be tailored to specific project needs.

Key applications of API 5L X52 pipes include oil and gas transportation, offshore pipelines, water distribution, and structural support in heavy infrastructure projects. They are also widely used in refineries and power plants, where resistance to corrosion and high temperatures is essential.

The API 5L X52 pipe’s ability to withstand harsh conditions, including corrosive environments and extreme temperatures, ensures a long service life. Its compliance with international standards and certifications further guarantees reliability and safety.

API 5L X46 Pipe Dimensions

Seamless Pipe Dimensions (1/2″ to 24″)

NPS (inches)	OD (inches)	Wall Thickness (inches)	Weight per foot (lbs)
1/2	0.840	0.109	0.85
3/4	1.050	0.113	1.13
1	1.315	0.133	1.68
1 1/4	1.660	0.140	2.27
1 1/2	1.900	0.145	2.72
2	2.375	0.154	3.65
2 1/2	2.875	0.203	5.79
3	3.500	0.216	7.58
4	4.500	0.237	10.79
6	6.625	0.280	18.99
8	8.625	0.322	28.55
10	10.750	0.365	40.48
12	12.750	0.406	53.52
16	16.000	0.500	84.36
20	20.000	0.593	127.95
24	24.000	0.688	179.46

Welded ERW Pipe Dimensions (1/2″ to 20″)

NPS (inches)	OD (inches)	Wall Thickness (inches)	Weight per foot (lbs)
1/2	0.840	0.109	0.85
3/4	1.050	0.113	1.13
1	1.315	0.133	1.68
2	2.375	0.154	3.65
4	4.500	0.237	10.79
6	6.625	0.280	18.99
8	8.625	0.322	28.55
10	10.750	0.365	40.48
16	16.000	0.500	84.36
20	20.000	0.593	127.95

LSAW and SSAW Pipe Dimensions (16″ to 100″)

NPS (inches)	OD (inches)	Wall Thickness (inches)	Weight per foot (lbs)
16	16.000	0.500	84.36
18	18.000	0.562	107.36
20	20.000	0.593	127.95
24	24.000	0.688	179.46
30	30.000	0.875	291.76
36	36.000	1.000	436.91
42	42.000	1.188	594.18
48	48.000	1.250	754.82
60	60.000	1.500	1224.60
72	72.000	1.625	1648.80
100	100.000	2.000	3270.00

API 5L X52 Chemical Composition

Element	Maximum %
Carbon (C)	0.26
Manganese (Mn)	1.40
Phosphorus (P)	0.030
Sulfur (S)	0.030
Silicon (Si)	0.45
Nickel (Ni)	0.40
Chromium (Cr)	0.40
Copper (Cu)	0.50
Molybdenum (Mo)	0.15
Vanadium (V)	0.10

API 5L X52 Mechanical Properties

Property	Value
Yield Strength (YS)	Minimum 52,000 psi (360 MPa)
Tensile Strength (TS)	Minimum 66,700 psi (460 MPa)
Elongation	21% minimum in 2 inches (50 mm)
Charpy Impact Test	Varies by thickness and test temperature, typically around 27 J at 0°C
Hardness (Brinell)	Maximum 241 HBW
Modulus of Elasticity	207 GPa (30,000 ksi)
Poisson's Ratio	0.3
Reduction of Area	35% minimum
Fracture Toughness	High fracture toughness suitable for use in high-pressure environments

API 5L X52 Physical Properties

Property	API 5L X52 Specification
Density	7.85 g/cm³ (7850 kg/m³)
Modulus of Elasticity	210 GPa (30,500 ksi)
Poisson’s Ratio	0.3
Thermal Conductivity	50.2 W/m·K (at 20°C)
Specific Heat Capacity	486 J/kg·K (at 20°C)
Melting Point	~1425-1510°C (~2600-2750°F)
Yield Strength	≥ 52,000 psi (360 MPa)
Tensile Strength	≥ 66,000 psi (455 MPa)
Coefficient of Thermal Expansion	11.7 x 10⁻⁶ /°C (20°C - 100°C)

API 5L X52 Pipe Pressure Rating

Pipe Size (inches)	Schedule	Approx. Max. Pressure Rating (psi)
4	40	2,570 psi
4	80	4,680 psi
6	40	1,960 psi
6	80	3,570 psi
8	40	1,490 psi
8	80	2,710 psi

Key Features and Applications

• Material Strength: API 5L X52 offers a higher yield and tensile strength compared to Grade B, making it suitable for environments requiring durability and resistance to pressure.
• Weldability: This grade is designed for ease of welding, making it versatile for use in various pipeline constructions and long-distance fluid transportation.
• Corrosion Resistance: Ideal for onshore and offshore applications, with anti-corrosion coatings typically applied to withstand harsh environments.
• Applications: Commonly used in pipelines for oil, gas, water, and other fluids, particularly where high-pressure endurance is required.

Conclusion

API 5L B X52 is a versatile and reliable steel pipe that meets the demanding requirements of the oil and gas industry. Its combination of strength, durability, and compliance with international standards makes it a preferred choice for pipeline construction and other critical applications.