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Alloy Steel Tube

Our alloy steel tubes, including 4130 ,4140,30CrMo,42CrMo and etc, are crafted for high strength and wear resistance. Blending premium alloys with precision manufacturing, they offer superior toughness and load-bearing capacity. Perfect for mechanical engineering, automotive components, and industrial machinery in demanding conditions.

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Alloy Steel Tube 1 Alloy Steel Tube 2 Alloy Steel Tube 3 Alloy Steel Tube 4 Alloy Steel Tube 5
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Product Details

Application:

- Oil and Gas Industry: With high strength and pressure resistance, alloy steel tube is widely used in the entire process of crude oil, natural gas and refined oil extraction and transportation, serving as a core material for energy pipeline systems.
- Petrochemical and Refining Field: Facing complex corrosive media, alloy steel tube ensures the safe and stable operation of chemical reactors and transportation pipelines by virtue of its excellent corrosion resistance and high temperature resistance.
 
- Power Industry: In thermal power plants, nuclear power plants and other power stations, alloy steel tube is used to transport high-pressure steam and thermal fluids, and its high-temperature strength guarantees the long-term reliable operation of units.
 
- Marine Engineering: Alloy steel tube can withstand high underwater pressure and salt spray corrosion, making it an ideal material for offshore platforms and subsea pipelines, suitable for harsh marine environments.
 
- Mechanical Manufacturing: Used in auto half shafts, engineering machinery hydraulic cylinders and other components, alloy steel tube achieves high wear resistance and fatigue resistance after treatment, improving the service life of equipment.
 
- High-End Equipment Field: In high-end scenarios such as aerospace and nuclear power equipment, alloy steel tube meets the performance requirements under extreme working conditions with customized alloy compositions.


Advantage:

Standard:

Material Chemical Composition(%)
Standard Steel Grade C Si Mn P S Cr Mo
ASTM A519 4130/30CrMo 0.28-0.33 0.15-0.35 0.40-0.60 ≤0.04 ≤0.04 0.8-1.1 0.15-0.25
4140/42CrMo 0.38-0.43 0.15-0.35 0.75-1 ≤0.04 ≤0.04 0.8-1.1 0.15-0.2
Mechanical Performance
CW SR A N
RM Tensile Strength(Mpa)Min A
Elongation(%)Min
RM Tensile Strength(Mpa)Min A
Elongation(%)Min
RM Tensile Strength(Mpa)Min Rel Yield Strength(Mpa)Min A
Elongation(%)Min
RM Tensile Strength(Mpa)Min Rel Yield Strength(Mpa)Min A
Elongation(%)Min
- - 724 10 517 379 30 621 441 20
- - 855 10 552 414 25 855 621 20