Grade 4130 Steel | McMaster-Carr

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	Material Material	Show

Steel

4130 Alloy Steel

	Material Material	Hide

	Shape Shape


Sheet and Bar	Rod and Disc

Round Tube	Rectangular Tube

	System of Measurement System of Measurement

Inch

	ID ID

	OD OD

	Wall Thickness Wall Thickness

	Thickness Thickness

	Length Length

	Diameter Diameter

	Width Width

12"

24"

36"

	Hardness Rating Hardness Rating

Medium

Hard

	Fabrication Fabrication

Cold Worked

Hot Rolled

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Yield Strength Yield Strength

20,000 to 99,999 psi

Not Rated

	Tolerance Rating Tolerance Rating

Standard

Oversized

	Heat Treatment Heat Treatment

Annealed (Softened)

Hardened

Normalized

	Specifications Met Specifications Met

ASTM

Mil. Spec.

SAE

	Hardness Hardness

Rockwell B85

Rockwell C20

Rockwell C22

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Appearance Appearance

	Plain

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

REACH Compliant

	Elongation Elongation

26.5%

Not Rated

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

RoHS Compliant

RoHS Compliant with
Exemptions

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236 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 ORDER HISTORY 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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
0.035" Wall Thick. (-0.005" to 0.005" Tolerance)
3/16"	-0.005" to 0.005"	0.118"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	0000	00000	00000
5/16"	-0.005" to 0.005"	0.243"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.93"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	0000	00000	00000
5/16"	-0.005" to 0.005"	0.215"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	0000	00000	00000
7/16"	-0.005" to 0.005"	0.34"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.902"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
2"	-0.020" to 0.020"	1.902"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	0000	00000	00000
5/16"	-0.005" to 0.005"	0.183"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	0000	00000	00000
7/16"	-0.005" to 0.005"	0.308"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
9/16"	-0.005" to 0.005"	0.433"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
1"	-0.005" to 0.005"	0.87"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
7/16"	-0.005" to 0.005"	0.272"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
9/16"	-0.005" to 0.005"	0.397"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 3/4"	-0.010" to 0.010"	1.584"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
2"	-0.010" to 0.010"	1.834"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 3/8"	-0.005" to 0.005"	1.185"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 1/2"	-0.010" to 0.010"	1.31"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 5/8"	-0.010" to 0.010"	1.435"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 3/4"	-0.010" to 0.010"	1.56"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
7/16"	-0.005" to 0.005"	0.198"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	00000
9/16"	-0.005" to 0.005"	0.323"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 1/4"	-0.005" to 0.005"	1.01"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 3/8"	-0.005" to 0.005"	1.135"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 1/2"	-0.005" to 0.005"	1.26"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	000000	000000
3"	-0.010" to 0.010"	2.76"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	000000	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
1 1/8"	-0.005" to 0.005"	0.749"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	000000	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, SAE AMS6360	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, SAE AMS6360	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, SAE AMS6360	0.030" per 3 ft.	000000000	00000	000000	000000

								6" Lg.
OD	OD Tolerance	ID	ID Tolerance	Yield Strength	Hardness	Maximum Hardness After Heat Treatment	Specifications Met		Each
1/4" Wall Thick. (-0.038" to 0.038" Tolerance)
1"	-0.005" to 0.005"	1/2"	Not Rated	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736	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

Easy-to-Weld 4130 Alloy Steel Sheets and Bars

Yield Strength: 50,000 psi
Hardness: Rockwell B85 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: SAE AMS6350, SAE AMS6351

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

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.

6" × 12"
Thick.	Thick. Tolerance	Heat Treatment		Each
0.025"	-0.005" to 0.005"	Annealed (Softened)	0000000	000000
0.032"	-0.005" to 0.005"	Annealed (Softened)	00000000	00000
0.04"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.05"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.063"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.071"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.08"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.09"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.1"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
1/8"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.16"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.19"	-0.009" to 0.009"	Annealed (Softened)	0000000	00000
1/4"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
6" × 36"
0.025"	-0.005" to 0.005"	Annealed (Softened)	0000000	00000
0.032"	-0.005" to 0.005"	Annealed (Softened)	00000000	00000
0.04"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.05"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.063"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.071"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.08"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.09"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.1"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
1/8"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.16"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.19"	-0.009" to 0.009"	Annealed (Softened)	0000000	00000
1/4"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
12" × 12"
0.025"	-0.005" to 0.005"	Annealed (Softened)	0000000	00000
0.032"	-0.005" to 0.005"	Annealed (Softened)	00000000	00000
0.04"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.05"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.063"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.071"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.08"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.09"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.1"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
1/8"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.16"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.19"	-0.009" to 0.009"	Annealed (Softened)	0000000	00000
1/4"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
12" × 24"
0.025"	-0.005" to 0.005"	Annealed (Softened)	0000000	00000
0.032"	-0.005" to 0.005"	Annealed (Softened)	00000000	00000
0.04"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.05"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.063"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.071"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.08"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.09"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.1"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
1/8"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.16"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.19"	-0.009" to 0.009"	Annealed (Softened)	0000000	00000
1/4"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
24" × 24"
0.025"	-0.005" to 0.005"	Annealed (Softened)	0000000	00000
0.032"	-0.005" to 0.005"	Annealed (Softened)	00000000	00000
0.04"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.05"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.063"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.071"	-0.009" to 0.009"	Annealed (Softened)	00000000	00000
0.08"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.09"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.1"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
1/8"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.16"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.19"	-0.009" to 0.009"	Annealed (Softened)	0000000	000000
1/4"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
36" × 36"
0.025"	-0.005" to 0.005"	Annealed (Softened)	0000000	000000
0.032"	-0.005" to 0.005"	Annealed (Softened)	00000000	000000
0.04"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.05"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.063"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.071"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.08"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.09"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.1"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
1/8"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.16"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000
0.19"	-0.009" to 0.009"	Annealed (Softened)	0000000	000000
1/4"	-0.009" to 0.009"	Annealed (Softened)	00000000	000000

Easy-to-Weld 4130 Alloy Steel Rods

Yield Strength: Not Rated
Hardness: Rockwell C22 (Hard)
Specifications Met: ASTM A108, SAE AMS2301, SAE AMS6348

4130 alloy steel has a low carbon content for good weldability. It's often used for gears, fasteners, and structural applications. These rods have been normalized for consistent hardening and machining.

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

Dia.	Dia. Tolerance	Heat Treatment	Mechanical Finish		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
3/8"	0" to 0.005"	Hardened, Normalized	__	0000000	00000	000000	000000
1/2"	0" to 0.005"	Hardened, Normalized	__	0000000	0000	00000	00000
5/8"	0" to 0.005"	Hardened, Normalized	__	0000000	00000	00000	00000
3/4"	0" to 0.005"	Hardened, Normalized	__	0000000	00000	00000	00000
7/8"	0" to 0.005"	Hardened, Normalized	__	0000000	00000	00000	00000
1"	0" to 0.005"	Hardened, Normalized	__	0000000	00000	00000	000000
1 1/8"	0" to 0.006"	Hardened, Normalized	Turned and Polished	0000000	00000	00000	000000
1 1/4"	0" to 0.006"	Hardened, Normalized	Turned and Polished	0000000	00000	00000	000000
1 3/8"	0" to 0.006"	Hardened, Normalized	Turned and Polished	0000000	00000	000000	000000
1 1/2"	0" to 0.006"	Hardened, Normalized	Turned and Polished	0000000	00000	000000	000000
1 5/8"	0" to 0.007"	Hardened, Normalized	Turned and Polished	0000000	00000	000000	00
1 3/4"	0" to 0.007"	Hardened, Normalized	Turned and Polished	0000000	00000	000000	000000
2"	0" to 0.007"	Hardened, Normalized	Turned and Polished	0000000	00000	000000	000000
2 1/4"	0" to 0.007"	Hardened, Normalized	Turned and Polished	0000000	000000	000000	00
2 1/2"	0" to 0.007"	Hardened, Normalized	Turned and Polished	0000000	000000	000000	000000
2 3/4"	0" to 0.008"	Hardened, Normalized	Turned and Polished	00000000	000000	00	00
3"	0" to 0.008"	Hardened, Normalized	Turned and Polished	0000000	000000	000000	000000

Easy-to-Weld 4130 Alloy Steel Rectangular Tubes

Yield Strength: 75,000 psi
Hardness: Rockwell C20 (Hard)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C49
Specifications Met: SAE AMS-T-6736, MIL-T-6736

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

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.

Outside				Inside
Ht.	Ht. Tolerance	Wd.	Wd. Tolerance	Ht.	Wd.		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
0.035" Wall Thick. (-0.004" to 0.004" Tolerance)
3/8"	-0.020" to 0.020"	3/8"	-0.020" to 0.020"	0.305"	0.305"	0000000	000000	000000	000000	000000	000000
1/2"	-0.020" to 0.020"	1/2"	-0.020" to 0.020"	0.43"	0.43"	0000000	00000	00000	00000	00000	00000
1/2"	-0.020" to 0.020"	1"	-0.020" to 0.020"	0.43"	0.93"	0000000	00000	00000	00000	00000	00000
5/8"	-0.020" to 0.020"	5/8"	-0.020" to 0.020"	0.555"	0.555"	0000000	00000	00000	00000	00000	00000
3/4"	-0.020" to 0.020"	3/4"	-0.020" to 0.020"	0.68"	0.68"	0000000	00000	00000	00000	00000	000000
1"	-0.020" to 0.020"	1"	-0.020" to 0.020"	0.93"	0.93"	0000000	00000	00000	00000	00000	000000
0.049" Wall Thick. (-0.005" to 0.005" Tolerance)
1/2"	-0.020" to 0.020"	1"	-0.020" to 0.020"	0.402"	0.902"	0000000	00000	00000	00000	00000	00000
5/8"	-0.020" to 0.020"	5/8"	-0.020" to 0.020"	0.527"	0.527"	0000000	00000	00000	00000	00000	00000
3/4"	-0.020" to 0.020"	3/4"	-0.020" to 0.020"	0.652"	0.652"	0000000	00000	00000	00000	00000	00000
3/4"	-0.020" to 0.020"	1 1/2"	-0.020" to 0.020"	0.652"	1.402"	0000000	00000	00000	00000	00000	000000
1"	-0.020" to 0.020"	1"	-0.020" to 0.020"	0.902"	0.902"	0000000	00000	00000	00000	00000	000000
1"	-0.020" to 0.020"	1 1/2"	-0.020" to 0.020"	0.902"	1.402"	0000000	00000	00000	00000	00000	000000
0.065" Wall Thick. (-0.007" to 0.007" Tolerance)
1/2"	-0.020" to 0.020"	1"	-0.020" to 0.020"	0.37"	0.87"	0000000	00000	00000	00000	00000	000000
5/8"	-0.020" to 0.020"	5/8"	-0.020" to 0.020"	0.495"	0.495"	0000000	00000	00000	00000	00000	000000
3/4"	-0.020" to 0.020"	3/4"	-0.020" to 0.020"	0.62"	0.62"	0000000	00000	00000	00000	00000	000000
1"	-0.020" to 0.020"	1"	-0.020" to 0.020"	0.87"	0.87"	0000000	00000	00000	00000	00000	000000
1"	-0.020" to 0.020"	1 1/2"	-0.020" to 0.020"	0.87"	1.37"	0000000	00000	00000	00000	000000	000000
1"	-0.020" to 0.020"	1 3/4"	-0.020" to 0.020"	0.87"	1.62"	0000000	00000	00000	00000	000000	000000
1"	-0.020" to 0.020"	2"	-0.020" to 0.020"	0.87"	1.87"	0000000	00000	00000	00000	000000	000000

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

Easy-to-Weld 4130 Alloy Steel Round Tubes

Easy-to-Weld 4130 Alloy Steel Sheets and Bars

Easy-to-Weld 4130 Alloy Steel Rods

Easy-to-Weld 4130 Alloy Steel Rectangular Tubes