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AISI 4140 Alloy Steel

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AISI 4140 Alloy Steel

aisi-4140-alloy-steel-product-image

AISI 4140 is a chromium-molybdenum alloy steel known for high strength, toughness, and excellent fatigue and wear resistance. AISI 4140 alloy steel is widely used in demanding engineering, oil and gas, and industrial applications.

Key Features

AISI 4140 steel provides excellent toughness, fatigue resistance, and wear properties. It is suitable for hardening and tempering, offering a balanced combination of strength and ductility for critical components.

Typical Applications
  • Crankshafts
  • Gears and shafts
  • Tool holders
  • Pump shafts
  • Stem assemblies
  • Conveyor pins
  • Collets
  • Connection rods
Forms of Supply

Supplied as round bars, sheets, and ground bars. As trusted steel manufacturers in UAE and metal traders supplying ferrous material, we provide full lengths or cut blanks with precision-ground bars for tight tolerances.

aisi-4140-alloy-steel-product-image

AISI 4140 is a high-strength chromium-molybdenum alloy steel known for its toughness, wear resistance, and excellent fatigue performance. 4140 alloy steel is widely used in industrial and engineering applications, including oil and gas, automotive, and heavy machinery, where durability under stress is critical.

 

As trusted steel manufacturers in UAE and metal traders supplying ferrous material across Oman and Saudi Arabia, we provide AISI 4140 steel in various sizes and forms. Material AISI 4140 ensures consistent performance for shafts, gears, pump parts, and other high-stress components.

Key Advantages of 4145 Steel
    • High-strength alloy with excellent toughness and fatigue resistance
    • Suitable for hardening and tempering to balance strength and ductility
    • Ideal for shafts, gears, pump components, and mechanical assemblies
    • Wear-resistant performance for demanding engineering applications
    • Supplied by reliable 4140 steel suppliers in UAE, Oman, and Saudi Arabia

Technical Specifications

Chemical Composition
  • Carbon (C): 0.38–0.43% – Provides medium tensile strength and hardenability.
  • Manganese (Mn): 0.75–1.00% – Improves toughness and ductility.
  • Silicon (Si): 0.15–0.35% – Adds strength and hardness.
  • Nickel (Ni): 0.25% max – Enhances toughness and core strength.
  • Chromium (Cr): 0.80–1.10% – Improves hardenability and wear resistance.
  • Molybdenum (Mo): 0.15–0.25% – Boosts toughness and elevated temperature performance.
  • Phosphorus (P): 0.035% max – Limits brittleness.
  • Sulfur (S): 0.040% max – Improves machinability.
Mechanical Properties
  • Tensile Strength: 100–130 ksi (690–896 MPa)
  • Yield Strength: 80–110 ksi (552–758 MPa)
  • Elongation: 20–22%
  • Reduction of Area: 40%
  • Hardness (Rockwell C): 18–22 HRC
  • Hardness (Brinell): 217–235 HB

Technical Assistance

Our expert team and in-house metallurgists are available to provide guidance on any technical queries. At Silver Metal, we combine extensive industry knowledge with rigorous quality control to ensure every product meets the highest standards.

Silver Metal supplies high-quality metals and materials for a wide range of industries, including construction, oil & gas, manufacturing, and architectural projects across the UAE and Gulf region.

Yes! We offer tailored solutions and processing options to meet your exact project requirements. Our team can guide you through customization for all our products.

Absolutely. Each product comes with detailed technical datasheets, and our in-house metallurgists are available to assist with any technical queries.

You can easily contact our team via the website to request a quote or discuss your project. We provide professional support to ensure your requirements are met accurately and efficiently.

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Custom Orders & Support

Looking for a specific grade, finish, or size? Our team provides tailored metal solutions to match your project requirements. Contact us today.

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