AISI 4130 Steel Tube

AISI 4130 Steel Tube is a chromium-molybdenum alloy seamless steel tube. AISI 4130 is a chromium-molybdenum alloy steel, commonly known as "chrome-molybdenum steel", which has high strength, high toughness, and good fatigue resistance. It is widely used in industries such as aerospace, automotive, and manufacturing.
Outer Diameter: 5mm-420mm (customizable)
Wall Thickness: 0.5mm-55mm (customizable)
Length: Can be customized upon request
Steel Grade:AISI 4130
Standard:ASTM A519

Products Description

AISI 4130 Steel Tube

Advantages of AISI 4130 Steel Tube

High Strength and Durability: AISI 4130 offers an excellent balance of strength, ductility, and toughness. Its extremely high tensile and yield strengths enable it to withstand high-stress applications without failure.
Fatigue Resistance: The fatigue resistance of AISI 4130 alloy seamless tubing makes it an ideal choice for components subjected to repetitive stress or vibration, such as those used in the automotive or aerospace industries.
Weldability: Although some high-strength steels can be challenging to weld, AISI 4130 exhibits excellent weldability when proper welding procedures are followed. This property enables it to be fabricated into complex shapes and structures, making it a versatile choice for manufacturing custom parts.

applications of AISI 4130 Steel Tube

Aerospace: Aircraft frames, landing gear, wing structures, etc.
Automotive: Roll cages, chassis, suspension systems, engine components, etc.
Oil and gas: Piping systems, drilling equipment, etc.
Industrial manufacturing: Machine tool frames, structural components, etc.
Power generation: Turbine components, heat exchanger tubes, etc.

Chemical Composition

Element	Carbon	Manganese	Silicon	Chromium	Molybdenum	Sulfur	Phosphorus	Iron
Content (%)	0.28 – 0.33	0.40 – 0.60	0.15 – 0.35	0.80 – 1.10	0.15 – 0.25	≤ 0.04	≤ 0.035	Balance

Mechanical Properties

Property	Value
Tensile Strength	95,000 – 125,000 psi (650 – 860 MPa)
Yield Strength	60,000 – 100,000 psi (415 – 690 MPa)
Elongation	20% minimum (in 8 inches)
Hardness	170 – 250 HB (Brinell Hardness)
Modulus of Elasticity	30 x 10³ ksi (205 GPa)
Impact Toughness	30 J (at 0°C)

Possible Alternative Grades

AISI 4340: AISI 4340 is a high-strength alloy with higher nickel and chromium content, suitable for applications requiring higher toughness and load-bearing capacity. It is commonly used in aerospace and heavy equipment.
AISI 1020: For applications where strength is less critical, AISI 1020 (a mild steel) may be a more economical choice. It is commonly found in general manufacturing and construction.
EN 24 (708M40): A high-quality steel used in heavy engineering applications, this material offers similar strength and toughness to AISI 4340 and is commonly used in the aerospace and automotive industries.