AISI 4140 is a chromium-molybdenum alloy steel known for its exceptional toughness, abrasion resistance, and high fatigue strength. As a low-alloy steel, it offers a superior strength-to-weight ratio, making it a cornerstone material for demanding industrial applications. Its versatility is further enhanced through various heat treatments, which allow you to precisely tailor its mechanical properties to meet specific operational requirements.
For engineers, fabricators, and procurement managers in sectors like oil & gas, automotive, and manufacturing, AISI 4140 provides a reliable solution for components subjected to heavy loads, high wear, and significant stress. Understanding its composition, properties, and treatment processes is critical to leveraging its full potential. This guide provides a detailed overview to support your material selection and procurement decisions.
AISI 4140 Alloy Steel combines strength, hardness, and machinability, making it suitable for high-stress mechanical applications.
Here’s what makes it stand out:
4140’s chromium content enhances corrosion resistance, while molybdenum improves hardenability and toughness — making it a preferred choice in demanding environments.
Choosing AISI 4140 for your components provides several distinct operational advantages:
Applications of AISI 4140
Chemical Composition of AISI 4140
Forging
Mechanical Properties of 4140
Stress Relieving
Equivalent Standards of AISI 4140
Heat Treatment of AISI 4140
Nifty Alloys LLC is a reliable AISI 4140 Alloy Steel supplier and stockist in the UAE, with quick delivery across the UAE and export support worldwide. offering high-quality alloy steel bars, plates, and forgings for engineering, oil & gas, and automotive applications. We supply AISI 4140 / 42CrMo4 / 1.7225 Alloy Steel in various sizes and conditions. Each batch is quality-tested and supplied with mill test certificates to ensure compliance with ASTM and EN specifications.
Whether you need AISI 4140 Alloy Steel for shafts, gears, or mechanical parts, Nifty Alloys LLC provides precision, reliability, and competitive pricing.
Partner with us for consistent supply and exceptional service — your trusted source for AISI 4140 Alloy Steel in UAE and global markets.