Chrome-Moly Tubing | McMaster-Carr

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	Material Material

4130 Alloy Steel

4140 Alloy Steel

P22 Chrome-Moly Steel

	Shape Shape


Round Tube	Rectangular Tube

Straight

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	OD OD

	Wall Thickness Wall Thickness

	Hardness Rating Hardness Rating

Medium

Hard

	Specifications Met Specifications Met

ASTM

Mil. Spec.

SAE

	Fabrication Fabrication

Cold Worked

Hot Rolled

	Yield Strength Yield Strength

40,000 to 99,999 psi

	Tolerance Rating Tolerance Rating

Standard

	Hardness Hardness

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Appearance Appearance

	Plain

	Heat Treatable Heat Treatable

Yes

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

Rockwell C49

Rockwell C60

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

DFARS Specialty Metals
COTS-Exempt

	Maximum Temperature Maximum Temperature

Not Rated

	Minimum Temperature Minimum Temperature

Not Rated

	Elongation Elongation

21%

26.5%

	Outside Width Outside Width

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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

Thick-Wall Steel Unthreaded Pipe

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

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.

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.

Rotary Shafts

Use these general purpose shafts with bearings, sprockets, and gears to transmit rotary motion.

Keyed Rotary Shafts

Combine with a machine key to transmit torque to gears, sprockets, and other power transmission components.

D-Profile Rotary Shafts

A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings.

Threaded Rotary Shafts

Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.

Step-Down Rotary Shafts

A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings.

Tapped Rotary Shafts

Connect these internally threaded shafts directly to threaded components, or use a fastener to secure.

Rotary Shafts with Retaining Ring Grooves

Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings.