Carbon Steel Hollow Rods | McMaster-Carr

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	Material Material

Low-Carbon Steel

AHSS Carbon Steel

	Shape Shape


Round Tube	Rectangular Tube

	System of Measurement System of Measurement

	OD OD

	ID ID

	Wall Thickness Wall Thickness

	Low-Carbon Steel Grade Low-Carbon Steel Grade

	Fabrication Fabrication

	Hardness Rating Hardness Rating

	Yield Strength Yield Strength

20,000 to 29,999 psi

30,000 to 39,999 psi

40,000 to 99,999 psi

100,000 psi or greater

	Specifications Met Specifications Met

ASTM A513 Type 1

ASTM A513 Type 2

ASTM A513 Type 5

	Thread Size Thread Size

	Tolerance Rating Tolerance Rating

	Hardness Hardness

	Outside Width Outside Width

	Length Length

	Appearance Appearance

	Plain

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Outside Height Outside Height

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Heat Treatable Heat Treatable

	Inside Width Inside Width

	Maximum Temperature Maximum Temperature

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

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Carbon Steel

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.

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.

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

Create strong structures by welding this framing together. Add metal panels to close off openings.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)