Alloy Steel Round Bar: 4130 & 4140 Grades for Strength, Versatility & Performance

Titanium Industries offers a complete inventory of alloy steel bar stock, including the most requested grades — steel 4130 and 4140 Alloy bar stock. As a global multi-alloy distributor, we provide precision-cut, certified alloy steel bar stock for structural, industrial, aerospace, and oil & gas applications.

What is 4130 and 4140 Alloy Steel Round Bar?

Both steel 4130 and steel 4140 are chromium-molybdenum alloy steels known for their excellent strength-to-weight ratios, hardness, and machinability.

• 4130 Round Bar: A low-alloy steel ideal for welding and forming, often used in aircraft parts, roll cages, and structural tubing.
• 4140 Round Bar: Higher in carbon, 4140 offers increased tensile strength and hardness — making it ideal for gears, shafts, and tool components.

Available Products & Specs

At Titanium Industries, we offer a wide selection of 4130 alloy steel bar and 4140 alloy steel bar in common and custom lengths, with full traceability and material certifications.

• Sizes from 0.500″ to 6.000″+
• Normalized, quenched & tempered, or annealed conditions
• Meets AMS, ASTM, and MIL standards
• Custom cut-to-size available upon request

Whether you need rough bar stock or tight tolerance blanks, we’ll configure it to meet your specs.

Key Benefits of Alloy Steel Bar Stock

• ✅ High tensile strength and fatigue resistance
• ✅ Strong weldability and machinability
• ✅ Cost-effective for high-performance applications
• ✅ Excellent wear resistance under heavy loading

Industries & Applications

• Aerospace components (landing gear, airframes, brackets)
• Oil & gas drilling tools
• Power generation equipment
• Industrial shafts, couplings, and fasteners
• Automotive and heavy equipment parts

Why Source Alloy Steel from Titanium Industries?

We’re not just a titanium supplier — we’re a multi-alloy distributor with over 50 years of experience delivering high-performance metals. Our global network allows us to stock and ship alloy steel round bar quickly and reliably — wherever you need it.

With excellent support and competitive pricing, Titanium Industries is your single-source partner for alloy steel and specialty metals.

Get a Quote on steel 4130 or 4140 Alloy Steel Bar

Use our Quick Quote App to request pricing and availability for 4130 round bar, 4140 alloy steel bar, or other alloy steel bar stock. Global shipping. Certified inventory. Fast response times.
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