Chrome-Moly Pipe | McMaster-Carr

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	Material Material

4130 Alloy Steel

4140 Alloy Steel

P22 Chrome-Moly Steel

	Shape Shape

	Straight
	Round Tube
	Rectangular Tube

	System of Measurement System of Measurement

Inch

	ID ID

	OD OD

	Wall Thickness Wall Thickness

	Hardness Rating Hardness Rating

Medium

Hard

	Fabrication Fabrication

Cold Worked

Hot Rolled

	Specifications Met Specifications Met

ASTM

Mil. Spec.

SAE

	Yield Strength Yield Strength

40,000 to 99,999 psi

	Tolerance Rating Tolerance Rating

Standard

	Hardness Hardness

Rockwell B85

Rockwell C20

	Heat Treatable Heat Treatable

Yes

	Pipe Size Pipe Size

1/2

3/4

1 1/2

	Length Length

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Appearance Appearance

	Plain

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

DFARS Specialty Metals
COTS-Exempt

	Threading Threading

Unthreaded

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

Rockwell C49

Rockwell C60

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

REACH Compliant

	Elongation Elongation

21%

26.5%

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

RoHS Compliant

RoHS Compliant with
Exemptions

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169 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

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

For Use With:
Steel: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
P22 Chrome-Moly Steel: Air, Natural Gas, Oil, Steam, Water
Specifications Met: See table
Fittings:
Steel: Use Class 3000 or Schedule 30 steel
P22 Chrome-Moly Steel: Use Class 3000 F22 Chrome-Moly Steel
Flanges: See table

Thick, Schedule 80 walls give this pipe better strength than our standard-wall steel unthreaded pipe. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is seamless, so it has a smooth interior for unrestricted flow. It is for use in noncorrosive environments.

P22 chrome-moly steel is stronger and easier to weld than plain steel. It resists scaling even in steam applications.

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

1/2 Pipe Size
Lg., ft.	Wall Thick.	Construction	Material		Each
1	0.147"	Seamless	P22 Chrome-Moly Steel	0000000	000000
3	0.147"	Seamless	P22 Chrome-Moly Steel	0000000	000000
3/4 Pipe Size
1	0.154"	Seamless	P22 Chrome-Moly Steel	0000000	00000
3	0.154"	Seamless	P22 Chrome-Moly Steel	0000000	000000
1 Pipe Size
1	0.179"	Seamless	P22 Chrome-Moly Steel	0000000	00000
3	0.179"	Seamless	P22 Chrome-Moly Steel	0000000	000000
1 1/2 Pipe Size
1	0.2"	Seamless	P22 Chrome-Moly Steel	0000000	000000
3	0.2"	Seamless	P22 Chrome-Moly Steel	0000000	000000
2 Pipe Size
1	0.218"	Seamless	P22 Chrome-Moly Steel	0000000	000000
3	0.218"	Seamless	P22 Chrome-Moly Steel	0000000	000000

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"	-0.010" 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 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

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 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

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Thick-Wall Steel Unthreaded Pipe

Easy-to-Weld 4130 Alloy Steel Round Tubes

Easy-to-Weld 4130 Alloy Steel Rectangular Tubes

Multipurpose 4140 Alloy Steel Tubes