1.51" Tubing | McMaster-Carr

Seamless construction with no weld bead gives this tubing an interior with unrestricted flow. It is stronger than welded tubing and can be flared without splitting.

316 stainless steel offers excellent corrosion resistance.

Tubing that meets ASTM specifications adheres to international standards for dimensions and materials.

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

Straights

Temperature Range:
304 Stainless Steel: -425° to 1500° F
316 Stainless Steel: -325° to 1500° F
Bending Method: Tube Bender
For Use With: Natural Gas, Water, Oil, Air
Compatible Tubing Fittings: Butt Weld, Compression, Flared, and Yor-Lok

316 Stainless Steel
OD	Wall Thick.	ID	Max. Pressure	Temper Rating	Specifications Met		1 ft.	3 ft.	6 ft.
1 3/4"	0.12"	1.51"	2,700 psi @ 72° F	Soft	ASTM A213, ASTM A269	000000000	000000	0000000	0000000

Low-Carbon Steel Round Tubes

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as frames, supports, and conduit. This steel is manufactured to ASTM, SAE, or EN standards for quality and performance.

Tubes

0.12" Wall Thick.
OD	ID	Yield Strength, psi	Fabrication	Weld Method	Heat Treatable	Hardness	Specifications Met		1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	4 ft. Lg.	6 ft. Lg.	8 ft. Lg.
1 3/4"	1.51"	30,000	Welded	ERW (Electric Resistance Welded)	No	Rockwell B50 (Soft)	ASTM A513 Type 1	0000000	000000	000000	000000	000000	000000	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
Fabrication: Seamless
Specifications Met: See table

Also known as chrome-moly steel, these 4130 alloy steel round tubes have low carbon content for good weldability. They’re often used for roll cages and frames. 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.

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

0.12" Wall Thick.
OD	ID	Yield Strength	Hardness	Specifications Met	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	3 ft. Lg.	4 ft. Lg.	6 ft. Lg.	8 ft. Lg.
1 3/4"	1.51"	70,000 psi	Rockwell C19	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	000000	000000	000000	000000	0000000	0000000

							3" Lg.
OD	ID	Yield Strength	Hardness	Maximum Hardness After Heat Treatment	Specifications Met	Straightness Tolerance		Each
0.12" Wall Thick.
1 3/4"	1.51"	70,000 psi	Rockwell C19	Not Rated	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	000000

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About Metal Tubing

Smooth-Bore Seamless Stainless Steel Tubing

Low-Carbon Steel Round Tubes

Easy-to-Weld 4130 Alloy Steel Round Tubes