	OD OD

	ID ID

	Wall Thickness Wall Thickness

	Material Material

4130 Alloy Steel

4140 Alloy Steel

52100 Alloy Steel

	Hardness Rating Hardness Rating

Medium

Hard

	Hardness Hardness

	Fabrication Fabrication

Cold Worked

Hot Rolled

	Specifications Met Specifications Met

Mil. Spec.

SAE

ASTM

	Yield Strength Yield Strength

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

Rockwell C49

Rockwell C60

Not Rated

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

DFARS Specialty Metals
COTS-Exempt

	Elongation Elongation

	Length Length

1ft.

3ft.

6ft.

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146 Products

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

Yield Strength: See table
Hardness: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: See table
Specifications Met: See table

4130 alloy steel has a low carbon content that provides good weldability. It's often used for gears, fasteners, and structural applications. These tubes meet military specifications and SAE dimensional standards.

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 ACTIVITY after your order ships.

0.028" Wall Thick. (-0.004" to 0.004" Tolerance)
OD	OD Tolerance	ID	Yield Strength	Hardness	Maximum Hardness After Heat Treatment	Specifications Met	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.005" to 0.005"	0.194"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	000000	000000
3/8"	-0.005" to 0.005"	0.319"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1/2"	-0.005" to 0.005"	0.444"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
5/8"	-0.005" to 0.005"	0.569"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/4"	-0.005" to 0.005"	0.694"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1"	-0.010" to 0.010"	0.944"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.035" Wall Thick. (-0.005" to 0.005" Tolerance)
0.188"	-0.005" to 0.005"	0.118"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1/4"	-0.005" to 0.005"	0.18"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.313"	-0.005" to 0.005"	0.243"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/8"	-0.005" to 0.005"	0.305"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1/2"	-0.005" to 0.005"	0.43"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
5/8"	-0.005" to 0.005"	0.555"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/4"	-0.005" to 0.005"	0.68"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
7/8"	-0.005" to 0.005"	0.805"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1"	-0.005" to 0.005"	0.93"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1 1/8"	-0.005" to 0.005"	1.055"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.18"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.305"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.013" to 0.013"	1.43"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.049" Wall Thick. (-0.007" to 0.007" Tolerance)
1/4"	-0.005" to 0.005"	0.152"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.313"	-0.005" to 0.005"	0.215"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/8"	-0.005" to 0.005"	0.277"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.438"	-0.005" to 0.005"	0.34"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1/2"	-0.005" to 0.005"	0.402"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
5/8"	-0.005" to 0.005"	0.527"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/4"	-0.005" to 0.005"	0.652"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
7/8"	-0.005" to 0.005"	0.777"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1"	-0.005" to 0.005"	0.902"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1 1/8"	-0.005" to 0.005"	1.027"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.152"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.277"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.005" to 0.005"	1.402"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/4"	-0.019" to 0.019"	1.652"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
2"	-0.020" to 0.020"	1.902"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.058" Wall Thick. (-0.009" to 0.009" Tolerance)
3/8"	-0.005" to 0.005"	0.259"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
7/16"	-0.005" to 0.005"	0.322"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1/2"	-0.005" to 0.005"	0.384"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
5/8"	-0.005" to 0.005"	0.509"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
3/4"	-0.005" to 0.005"	0.634"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
7/8"	-0.005" to 0.005"	0.759"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.884"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/8"	-0.005" to 0.005"	1.009"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.134"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.259"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.005" to 0.005"	1.384"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/4"	-0.010" to 0.010"	1.634"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.065" Wall Thick. (-0.01" to 0.01" Tolerance)
1/4"	-0.005" to 0.005"	0.12"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.313"	-0.005" to 0.005"	0.183"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/8"	-0.005" to 0.005"	0.245"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.438"	-0.005" to 0.005"	0.308"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1/2"	-0.005" to 0.005"	0.37"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.563"	-0.005" to 0.005"	0.433"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
5/8"	-0.005" to 0.005"	0.495"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
3/4"	-0.005" to 0.005"	0.62"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
7/8"	-0.005" to 0.005"	0.745"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
1"	-0.005" to 0.005"	0.87"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/8"	-0.005" to 0.005"	0.995"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.12"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.245"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.005" to 0.005"	1.37"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 5/8"	-0.010" to 0.010"	1.495"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/4"	-0.010" to 0.010"	1.62"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
2"	-0.010" to 0.010"	1.87"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.083" Wall Thick. (-0.012" to 0.012" Tolerance)
3/8"	-0.005" to 0.005"	0.209"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	0000	00000	00000
0.438"	-0.005" to 0.005"	0.272"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1/2"	-0.005" to 0.005"	0.334"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.563"	-0.005" to 0.005"	0.397"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
5/8"	-0.005" to 0.005"	0.459"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
3/4"	-0.005" to 0.005"	0.584"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
7/8"	-0.005" to 0.005"	0.709"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.834"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/8"	-0.005" to 0.005"	0.959"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.084"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.209"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.005" to 0.005"	1.334"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 5/8"	-0.010" to 0.010"	1.459"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/4"	-0.010" to 0.010"	1.584"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
2"	-0.010" to 0.010"	1.834"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.095" Wall Thick. (-0.014" to 0.014" Tolerance)
5/16"	-0.005" to 0.005"	0.123"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
7/16"	-0.005" to 0.005"	0.248"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1/2"	-0.005" to 0.005"	0.31"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
3/4"	-0.005" to 0.005"	0.56"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.81"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/8"	-0.005" to 0.005"	0.935"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.06"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.185"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.010" to 0.010"	1.31"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 5/8"	-0.010" to 0.010"	1.435"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/4"	-0.010" to 0.010"	1.56"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2"	-0.010" to 0.010"	1.81"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2 1/2"	-0.010" to 0.010"	2.31"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
0.12" Wall Thick. (-0.018" to 0.018" Tolerance)
3/8"	-0.005" to 0.005"	0.135"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.438"	-0.005" to 0.005"	0.198"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1/2"	-0.005" to 0.005"	0.26"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
0.563"	-0.005" to 0.005"	0.323"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
5/8"	-0.005" to 0.005"	0.385"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
3/4"	-0.005" to 0.005"	0.51"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
7/8"	-0.005" to 0.005"	0.635"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.76"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/8"	-0.005" to 0.005"	0.885"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/4"	-0.005" to 0.005"	1.01"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 3/8"	-0.005" to 0.005"	1.135"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/2"	-0.005" to 0.005"	1.26"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
1 3/4"	-0.010" to 0.010"	1.51"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2"	-0.010" to 0.010"	1.76"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2 1/4"	-0.010" to 0.010"	2.01"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2 1/2"	-0.010" to 0.010"	2.26"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
3"	-0.010" to 0.010"	2.76"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	000000	000000
0.156" Wall Thick. (-0.023" to 0.023" Tolerance)
5/8"	-0.005" to 0.005"	0.313"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
0.188" Wall Thick. (-0.028" to 0.028" Tolerance)
5/8"	-0.005" to 0.005"	0.249"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
3/4"	-0.005" to 0.005"	0.374"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.624"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	00000
1 1/8"	-0.005" to 0.005"	0.749"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
1 1/4"	-0.005" to 0.005"	0.874"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
1 1/2"	-0.005" to 0.005"	1.124"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2"	-0.010" to 0.010"	1.624"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
2 1/2"	-0.010" to 0.010"	2.124"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	000000	000000
1/4" Wall Thick. (-0.038" to 0.038" Tolerance)
1"	-0.005" to 0.005"	1/2"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	00000	000000
3"	-0.010" to 0.010"	2 1/2"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0.030" per 3 ft.	000000000	00000	000000	000000

									6" Lg.
OD	OD Tolerance	ID	ID Tolerance	Yield Strength	Heat Treatment	Hardness	Maximum Hardness After Heat Treatment	Specifications Met		Each
1/4" Wall Thick. (-0.038" to 0.038" Tolerance)
1"	-0.035" to 0.035"	1/2"	-0.038" to 0.038"	80,000 psi	Annealed (Softened)	Rockwell C40	Not Rated	ASTM A513	0000000	000000
1 1/2"	-0.005" to 0.005"	1"	Not Rated	70,000 psi	__	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0000000	00000
2"	-0.005" to 0.005"	1 1/2"	Not Rated	70,000 psi	__	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	0000000	00000

Hard Wear-Resistant 52100 Alloy Steel Tubes

Yield Strength: See table
Hardness: See table
Heat Treatable: Yes
Maximum Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A295

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.

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 ACTIVITY after your order ships.

0.245" Wall Thickness (-0.0123" to 0.0123" Tolerance)
OD	OD Tolerance	ID	ID Tolerance	Yield Strength, psi	Hardness		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1.207"	-0.005" to 0.005"	0.717"	-0.01" to 0.01"	140,000	Rockwell B100	0000000	000000	000000	0000000
0.309" Wall Thickness (-0.0155" to 0.0155" Tolerance)
1.315"	-0.005" to 0.005"	0.697"	-0.01" to 0.01"	140,000	Rockwell B100	0000000	00000	00000	000000
0.353" Wall Thickness (-0.0176" to 0.0176" Tolerance)
1.551"	-0.005" to 0.005"	0.846"	-0.01" to 0.01"	140,000	Rockwell B100	0000000	00000	000000	000000
0.382" Wall Thickness (-0.0191" to 0.0191" Tolerance)
2.071"	-0.006" to 0.006"	1.253"	-0.01" to 0.01"	140,000	Rockwell B100	0000000	00000	000000	000000
0.472" Wall Thickness (-0.0236" to 0.0236" Tolerance)
2.57"	-0.008" to 0.008"	1.627"	-0.01" to 0.01"	140,000	Rockwell B100	0000000	00000	000000	000000
0.807" Wall Thickness (-0.061" to 0.061" Tolerance)
3.138"	-0.019" to 0.019"	1.524"	Not Rated	50,000	Rockwell B95	0000000	000000	000000	000000

Multipurpose 4140 Alloy Steel Tubes

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 ACTIVITY 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	00000	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	00000	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	000000
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	000000	00000000

Over 48,000 metals now include traceable material certificates.

146 Products

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

Easy-to-Weld 4130 Alloy Steel Round Tubes

Hard Wear-Resistant 52100 Alloy Steel Tubes

Multipurpose 4140 Alloy Steel Tubes