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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.


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Singapore customer orders ASTM A350 GR. LF2 CL1 90° socket weld elbows from Haihao Group

Recently, a significant order was placed by a Singapore customer with Haihao Group for more than 200 pieces of ASME B16.11 90° socket weld elbows made from ASTM A350 GR. LF2 CL1. These products are compliant with the NACE MR0175 standard, ensuring their suitability for use in harsh environments, particularly those containing hydrogen sulfide (H2S).

Product Overview

ASME B16.11 90° socket weld elbows are essential components in various piping systems. They facilitate a 90-degree turn in the piping, enabling efficient and compact installations. The socket weld design allows for a robust and leak-proof connection, making these fittings ideal for high-pressure applications.

ASTM A350 GR LF2 CL1 90° socket weld elbows

ASTM A350 GR LF2 CL1 90° socket weld elbows

Material Specification: ASTM A350 GR. LF2 CL1

ASTM A350 GR. LF2 CL1 is a commonly used low-temperature carbon steel material, known for its excellent toughness and strength at sub-zero temperatures. This makes it particularly suitable for applications in the oil and gas industry, as well as other sectors requiring reliable performance in cold environments.

Chemical Composition of ASTM A350 GR. LF2 CL1 90° socket weld elbow:

Carbon (C) Manganese (Mn) Phosphorus (P) Sulfur (S) Silicon (Si) Copper (Cu) Nickel (Ni) Chromium (Cr) Molybdenum (Mo) Vanadium (V)
0.30% max 0.60-1.35% 0.035% max 0.040% max 0.15-0.30% 0.40% max 0.40% max 0.30% max 0.12% max 0.08% max

Mechanical Properties of ASTM A350 GR. LF2 CL1 90° socket weld elbow:

Tensile Strength: 70,000 psi (485 MPa) min

Yield Strength: 36,000 psi (250 MPa) min

Elongation: 22% min

Reduction of Area: 30% min

Impact Energy: 13 J (10 ft-lb) at -50°F (-45°C) min

Compliance with NACE MR0175

NACE MR0175 is a standard developed by the National Association of Corrosion Engineers (NACE) that specifies the requirements for metallic materials used in environments containing hydrogen sulfide (H2S). The standard aims to ensure the resistance of materials to sulfide stress cracking, a form of hydrogen embrittlement. Compliance with NACE MR0175 means that the 90° socket weld elbows ordered by the Singapore customer are capable of withstanding the corrosive conditions often encountered in the oil and gas industry, particularly in sour service applications.

Advantages of the ASTM A350 GR. LF2 CL1 90° socket weld elbow

Corrosion Resistance: Compliance with NACE MR0175 ensures excellent resistance to sulfide stress cracking and other forms of corrosion.

Durability: The mechanical properties of ASTM A350 GR. LF2 CL1 make these elbows suitable for use in low-temperature environments, maintaining their integrity under challenging conditions.

Reliability: The high-quality material and precise manufacturing process employed by Haihao Group guarantee that each elbow meets the stringent requirements of ASME B16.11, ensuring reliable performance in the field.

Haihao Group is proud to fulfill the significant order from our Singapore customer, providing them with high-quality ASME B16.11 90° socket weld elbows made from ASTM A350 GR. LF2 CL1. These elbows not only meet the rigorous standards set by NACE MR0175 but also ensure reliable performance in demanding applications. With a total order exceeding 200 pieces, this collaboration underscores Haihao Group’s commitment to excellence and customer satisfaction in the global piping systems market.

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