Multipurpose 4140 Alloy Steel Tubes

	System of Measurement System of Measurement

Inch

	OD OD

	ID ID

	Wall Thickness Wall Thickness

	Shape Shape

	Round Tube

	Material Material

Steel

	Fabrication Fabrication

Hot Rolled

	Specifications Met Specifications Met

ASTM

	Yield Strength Yield Strength

40,000 to 99,999 psi

	Heat Treatable Heat Treatable

Yes

	Heat Treatment Heat Treatment

Annealed (Softened)

	Tolerance Rating Tolerance Rating

Standard

	Hardness Hardness

Rockwell B85

	Hardness Rating Hardness Rating

Medium

	Appearance Appearance

	Plain

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

Rockwell C60

	Minimum Temperature Minimum Temperature

Not Rated

	Maximum Temperature Maximum Temperature

Not Rated

	Elongation Elongation

21%

	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

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

DFARS Specialty Metals
COTS-Exempt

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18 Products

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

Yield Strength: 60,000 psi
Hardness: Rockwell B85 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A519

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

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

1/2" Wall Thick. (-0.05" to 0.05" Tolerance)
OD	OD Tolerance	ID	Heat Treatment	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
2 1/2"	-0.025" to 0.025"	1 1/2"	Annealed (Softened)	0.030" per ft.	0000000	000000	0000000	0000000
2 3/4"	-0.025" to 0.025"	1 3/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
3"	-0.025" to 0.025"	2"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
3 1/4"	-0.025" to 0.025"	2 1/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
3 3/4"	-0.025" to 0.025"	2 3/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
4"	-0.025" to 0.025"	3"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
5/8" Wall Thick. (-0.063" to 0.063" Tolerance)
3 1/4"	-0.025" to 0.025"	2"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
4"	-0.025" to 0.025"	2 3/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
3/4" Wall Thick. (-0.075" to 0.075" Tolerance)
3"	-0.025" to 0.025"	1 1/2"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
3 1/4"	-0.025" to 0.025"	1 3/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
3 3/4"	-0.025" to 0.025"	2 1/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
4 1/4"	-0.025" to 0.025"	2 3/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
4 3/4"	-0.037" to 0.037"	3 1/4"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
1" Wall Thick. (-0.1" to 0.1" Tolerance)
3 1/2"	-0.025" to 0.025"	1 1/2"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	000000
1 1/4" Wall Thick. (-1/8" to 1/8" Tolerance)
4 1/2"	-0.037" to 0.037"	2"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	00000000
5"	-0.037" to 0.037"	2 1/2"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	00000000
5 1/2"	-0.037" to 0.037"	3"	Annealed (Softened)	0.030" per ft.	0000000	000000	000000	00000000
2" Wall Thick. (-0.2" to 0.2" Tolerance)
6"	-0.037" to 0.037"	2"	Annealed (Softened)	0.030" per ft.	0000000	000000	00000000	00000000