Alloy Steel Hollow Rods | McMaster-Carr

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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron

Low-Carbon Steel Round Tubes

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Low-Carbon Steel Rectangular Tubes

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Ultra-Strength Carbon Steel (AHSS) Round Tubes

The same steel used in automobile bodies, this AHSS (advanced high-strength steel) allows you to fabricate high-strength parts using thinner material than you could with other types of steel. It is formable, weldable, and more economical than alloy steel.

Easy-to-Weld 4130 Alloy Steel Round Tubes

4130 alloy steel has a low carbon content that provides good weldability. It's often used for gears, fasteners, and structural applications.

Easy-to-Weld 4130 Alloy Steel Rectangular Tubes

4130 alloy steel has a low carbon content that provides good weldability. It's often used for structural applications.

Hard Wear-Resistant 52100 Alloy Steel Tubes

Easier to machine than 52100 alloy steel rods, these extremely hard and wear-resistant tubes are often used to create bearings, bushings, and other cylindrical parts that are under constant stress. They’re also known as chrome steel.

Multipurpose 4140 Alloy Steel Tubes

Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as axles, shafts, collets, and die holders. It resists fracturing from repeated stress.

Thick-Wall Steel Unthreaded Pipe

Typically used with thick-wall and high-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 80.

Connecting Rods

Internally Threaded Connecting Rods

Designed for use with right-hand, externally threaded rod ends, these rods have right-hand threads on both ends. Use them for remote valve operators, throttle controllers, shifting mechanisms, and virtually any push/pull assembly.

Internally Threaded
Turnbuckle-Style Connecting Rods

Similar to turnbuckles, these rods have right-hand threads on one end and left-hand threads on the other so you can make a linkage that adjusts for tension.

About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron

Steel

Low-Carbon Steel Round Tubes

Low-Carbon Steel Rectangular Tubes

Ultra-Strength Carbon Steel (AHSS) Round Tubes

Easy-to-Weld 4130 Alloy Steel Round Tubes

Easy-to-Weld 4130 Alloy Steel Rectangular Tubes

Hard Wear-Resistant 52100 Alloy Steel Tubes

Multipurpose 4140 Alloy Steel Tubes

Thick-Wall Steel Unthreaded Pipe

Thick-Wall Steel Unthreaded Pipe

Connecting Rods

Internally Threaded Connecting Rods

Internally ThreadedTurnbuckle-Style Connecting Rods

Internally Threaded
Turnbuckle-Style Connecting Rods