ASTM A519 4140 steel pipe is manufactured in accordance with ASTM A519 standard and is mainly used in the manufacture of various mechanical parts and engineering structures. This steel pipe is known for its high strength, excellent corrosion resistance and good mechanical properties.

ASTM A519 4140 Steel Pipe Features:

 

High strength and toughness: ASTM A519 4140 steel pipe has excellent strength and toughness to withstand high stresses and complex working environments.

 

Excellent corrosion resistance: The steel pipe can operate stably in a variety of corrosive environments for a long time to ensure the safety and service life of the pipeline.

 

Good machinability: ASTM A519 4140 steel pipe is easy to cut, bend, weld and other processing operations, easy to manufacture parts of various shapes and sizes.

 

The main chemical components of ASTM A519 4140 steel pipes include carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr) and molybdenum (Mo). These elements are mixed in a specific proportion and through a specific smelting and processing process, giving the excellent properties of the steel pipe. The specific chemical composition range is as follows:

 

Carbon (C) : 0.38~0.43%

 

Silicon (Si) : 0.15~0.35%

 

Manganese (Mn) : 0.75~1.00%

 

Phosphorus (P) : ≤0.035%

 

Sulfur (S) : ≤0.040%

 

Chromium (Cr) : 0.80~1.10%

 

Molybdenum (Mo) : 0.15~0.25%

 

ASTM A519 4140 steel pipe is widely used in many fields because of its excellent performance:

 

Oil and gas field: Used in the manufacture of drilling equipment, oil production equipment, oil drilling and production equipment and accessories, its corrosion resistance to ensure the long-term stable operation of pipelines in complex environments.

 

Chemical industry: Used in the manufacture of reactors, heat exchangers and storage tanks, its high strength and lightweight characteristics improve the performance and safety of the equipment.

 

Power field: Used in the manufacture of boilers, steam turbines and gas turbines and other equipment, its excellent heat and corrosion resistance to improve the efficiency and life of the equipment.

 

Construction field: Used in the construction of high-rise buildings, long-span Bridges and highways and other infrastructure, its high strength and light characteristics reduce the building's own weight and improve the stability of the structure.

 

In addition, ASTM A519 4140 steel pipe is also commonly used in aerospace, mechanical manufacturing and other fields, its excellent corrosion resistance and high strength to ensure the safety and reliability of key components.