4130 Alloy Steel | McMaster-Carr

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250 Products

About Steel

Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.

Easy-to-Weld 4130 Alloy Steel Round Tubes

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"	-0.005" to 0.005"	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 C21 (Hard)
Fabrication: See table
Specifications Met: See table

Made from 4130 alloy steel, also known as chrome-moly steel, these rods have low carbon content for good weldability. They’re often used to make gears and bushings. The surface of these rods is hardened to make them more resistant to wear and impacts. They’re also normalized, which is a heating process that relieves internal stress and helps prevent cracking during machining or additional hardening. These rods have been manufactured to ASTM and SAE standards for quality and performance.

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.

Dia.	Dia. Tolerance	Fabrication	Heat Treatment	Mechanical Finish	Specifications Met		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	4 ft. Lg.	6 ft. Lg.	8 ft. Lg.	12 ft. Lg.
3/8"	-0.004" to 0"	Cold Worked	Hardened, Normalized	__	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	00000	000000	000000	000000	000000	000000	00
1/2"	-0.004" to 0"	Cold Worked	Hardened, Normalized	__	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	0000	00000	00000	00000	00000	00000	000000
5/8"	-0.004" to 0"	Cold Worked	Hardened, Normalized	__	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	00000	00000	00000	00000	00000	00000	00
3/4"	-0.004" to 0"	Cold Worked	Hardened, Normalized	__	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	00000	00000	00000	00000	00000	00000	00
7/8"	-0.004" to 0"	Cold Worked	Hardened, Normalized	__	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	000000	00000	00000	00000	00	000000	00	00
1"	-0.004" to 0"	Cold Worked	Hardened, Normalized	__	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	00000	00000	00000	00000	000000	000000	00
1 1/8"	-0.004" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	00000	00000	00000	00	000000	00	00
1 1/4"	-0.004" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	00000	00000	00000	00	000000	00	00
1 3/8"	-0.004" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	00000	00	000000	00	000000	00	00
1 1/2"	-0.004" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	00000	00000	000000	00	000000	00	00
1 5/8"	-0.005" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	00000	00	000000	00	00	00	00
1 3/4"	-0.005" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	00000	00	000000	00	000000	00	00
2"	-0.005" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	00000	000000	000000	00	000000	00	00
2 1/4"	-0.005" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00	000000	00	000000	00	00	00	00
2 1/2"	-0.005" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	000000	00	000000	00	000000	00	00
2 3/4"	-0.006" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	00000000	00	000000	00	00	00	00	00	00
3"	-0.006" to 0"	Cold Worked	Hardened, Normalized	Turned and Polished	ASTM A108, SAE AMS2301, SAE AMS6348	0000000	00000	000000	00	000000	00	000000	00	00
4"	0" to 0.063"	Hot Rolled	Hardened, Normalized	__	ASTM A29, SAE AMS2301, SAE AMS6348	00000000	000000	000000	00	000000	00	00	00	00
6"	0" to 0.125"	Hot Rolled	Hardened, Normalized	__	ASTM A29, SAE AMS2301, SAE AMS6348	00000000	000000	000000	00	00000000	00	00	00	00

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
Fabrication: Seamless
Specifications Met: MIL-T-6736, SAE AMS-T-6736

Made from 4130 alloy steel, also known as chrome-moly steel, these tubes have low carbon content for good weldability. They’re often used for building frames and supports, since their flat sides make them easier to bolt than round tubes. To increase their wear resistance, you can harden them with heat treating. These tubes have been manufactured to SAE and military standards for quality and performance.

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.	Wd.	Ht.	Wd.		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
0.035" Wall Thick.
3/8"	3/8"	0.305"	0.305"	0000000	000000	000000	000000	000000	000000
1/2"	1/2"	0.43"	0.43"	0000000	00000	00000	00000	00000	00000
1/2"	1"	0.43"	0.93"	0000000	00000	00000	00000	00000	00000
5/8"	5/8"	0.555"	0.555"	0000000	00000	00000	00000	00000	00000
3/4"	3/4"	0.68"	0.68"	0000000	00000	00000	00000	00000	000000
1"	1"	0.93"	0.93"	0000000	00000	00000	00000	00000	000000
0.049" Wall Thick.
1/2"	1"	0.402"	0.902"	0000000	00000	00000	00000	00000	00000
5/8"	5/8"	0.527"	0.527"	0000000	00000	00000	00000	00000	00000
3/4"	3/4"	0.652"	0.652"	0000000	00000	00000	00000	00000	00000
3/4"	1 1/2"	0.652"	1.402"	0000000	00000	00000	00000	00000	000000
1"	1"	0.902"	0.902"	0000000	00000	00000	00000	00000	000000
1"	1 1/2"	0.902"	1.402"	0000000	00000	00000	00000	00000	000000
0.065" Wall Thick.
1/2"	1"	0.37"	0.87"	0000000	00000	00000	00000	00000	000000
5/8"	5/8"	0.495"	0.495"	0000000	00000	00000	00000	00000	000000
3/4"	3/4"	0.62"	0.62"	0000000	00000	00000	00000	00000	000000
1"	1"	0.87"	0.87"	0000000	00000	00000	00000	00000	000000
1"	1 1/2"	0.87"	1.37"	0000000	00000	00000	00000	000000	000000
1"	1 3/4"	0.87"	1.62"	0000000	00000	00000	00000	000000	000000
1"	2"	0.87"	1.87"	0000000	00000	00000	00000	000000	000000

Easy-to-Weld 4130 Alloy Steel Triangles

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

Weld these alloy steel triangles to strengthen joints in structural applications. They're also known as gussets. They have clipped corners that leave room for a weld bead, so you can make stronger welds. Made from 4130 alloy steel, also known as chrome-moly steel, these triangles have low carbon content for good weldability. To increase their wear resistance, you can harden them with heat treating. They have been manufactured to meet SAE standards for quality and performance.

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.

4" × 4"
Thick.	Thick. Tolerance	Fabrication	Heat Treatment	Pkg. Qty.		Pkg.
1/8"	-0.009" to 0.009"	Cold Rolled	Annealed (Softened)	2	0000000	000000
3/16"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
1/4"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
6" × 6"
1/8"	-0.009" to 0.009"	Cold Rolled	Annealed (Softened)	1	0000000	00000
3/16"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
1/4"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
8" × 8"
1/8"	-0.009" to 0.009"	Cold Rolled	Annealed (Softened)	1	0000000	00000
3/16"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
1/4"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
12" × 12"
1/8"	-0.009" to 0.009"	Cold Rolled	Annealed (Softened)	1	0000000	00000
3/16"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000
1/4"	-0.009" to 0.009"	Hot Rolled	Annealed (Softened)	1	0000000	00000