Metric Steel Tubing | McMaster-Carr

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1005-1026 Low-Carbon Steel

1010 Low-Carbon Steel

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68 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.

About Metal Tubing

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. These tubes are often fabricated into parts that don’t require high strength, such as frames, supports, and raceways. To increase their wear resistance, you can surface harden them with heat treating. These tubes are manufactured to ASTM or EN 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.

Tubes

Yield Strength: See table
Hardness: Not Rated
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Fabrication: Welded
Specifications Met: See table

Outside		Inside
Ht.	Wd.	Ht.	Wd.	Yield Strength, psi	Specifications Met	Straightness Tolerance		1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	4 ft. Lg.	6 ft. Lg.	8 ft. Lg.
0.065" Wall Thick.
1/2"	1 1/2"	0.37"	1.37"	32,000	ASTM A513 Type 1	__	0000000	000000	00	000000	00	000000	000000
1 1/2"	1 1/2"	1.37"	1.37"	32,000	ASTM A513 Type 1	1/16" per 3 ft.	0000000	0000	000000	00000	000000	00000	00000
0.12" Wall Thick.
1 1/2"	2 1/2"	1.26"	2.26"	32,000	ASTM A513 Type 1	1/16" per 3 ft.	0000000	00000	00	00000	00000	00000	00000

Metric Tubes

Yield Strength: 34,000 psi
Hardness: Rockwell B65 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Fabrication: Welded
Specifications Met: EN 10305-5

Outside, mm		Inside, mm
Ht.	Wd.	Ht.	Wd.		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 mm Wall Thick.
12	12	10	10	0000000	00000	000000	000000
2 mm Wall Thick.
25	25	21	21	0000000	00000	00000	00000
25	50	21	46	0000000	00000	00000	000000
40	40	36	36	0000000	00000	00000	000000
55	55	51	51	0000000	00000	000000	000000
3 mm Wall Thick.
100	100	94	94	0000000	000000	000000	000000

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.

Seamless tubes are stronger than welded tubes.

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.

Metric Tubes

1 mm Wall Thick.
OD, mm	ID, mm	Yield Strength, psi	Fabrication	Heat Treatable	Hardness	Specifications Met		1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	4 ft. Lg.	6 ft. Lg.	8 ft. Lg.
12	10	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	0000000	000000	000000	000000	00	000000	00
2 mm Wall Thick.
12	8	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	00000000	00000	00000	00000	000000	00000	000000
20	16	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	0000000	00000	00	00000	00	00000	00
3 mm Wall Thick.
20	14	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	00000000	00000	00	00000	00	000000	00
25	19	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	0000000	00000	00	00000	00	00000	00
4 mm Wall Thick.
25	17	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	00000000	00000	00	00000	00	000000	00
30	22	34,000	Seamless	No	Brinell 100 (Soft)	EN 10305-1	0000000	00000	00	000000	00	000000	00

Smooth-Bore Seamless Steel Tubing

Seamless construction with no weld bead gives this tubing a smooth interior for unrestricted flow. It is stronger than welded tubing and can be flared without splitting. Do not use in corrosive environments.

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

Metric Straights

Temperature Range: See Table
Bending Method: Tube Bender
For Use With: Air, Hydraulic Fluid, Oil
Compatible Tubing Fittings: Compression

1 m
OD, mm	Wall Thick., mm	ID, mm	Max. Pressure	Temperature Range, °F	Temper Rating	Specifications Met		Each
Steel
4	1	2	Not Rated	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
6	1	4	5,600 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
8	1	6	4,200 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
8	2	4	8,500 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
10	1.5	7	5,400 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
12	1.5	9	4,500 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
14	2	10	5,100 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
15	1.5	12	3,600 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
16	2	12	4,500 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
16	3	10	6,700 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
18	2	14	4,000 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
20	2	16	3,600 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
25	2	21	2,800 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
Zinc-Plated Steel
4	1	2	7,200 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
6	1	4	5,100 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
8	1	6	3,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
8	2.5	3	10,000 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
10	1.5	7	4,600 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
12	1.5	9	3,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
14	2	10	4,400 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
15	1.5	12	3,100 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
16	2	12	3,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
16	3	10	5,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
18	2	14	3,200 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
20	2	16	2,900 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
25	2	21	2,300 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
2 m
Steel
4	1	2	Not Rated	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
6	1	4	5,600 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
8	1	6	4,200 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
8	2	4	8,500 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
10	1.5	7	5,400 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
12	1.5	9	4,500 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
14	2	10	5,100 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
15	1.5	12	3,600 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
16	2	12	4,500 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
16	3	10	6,700 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
18	2	14	4,000 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
20	2	16	3,600 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
25	2	21	2,800 psi @ 72° F	-5° to 570°	Soft	DIN 2391, DIN EN 10305-4	00000000	00000
Zinc-Plated Steel
4	1	2	7,200 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
6	1	4	5,100 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
8	1	6	3,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
8	2.5	3	10,000 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
10	1.5	7	4,600 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
12	1.5	9	3,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
14	2	10	4,400 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
15	1.5	12	3,100 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
16	2	12	3,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
16	3	10	5,800 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
18	2	14	3,200 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
20	2	16	2,900 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000
25	2	21	2,300 psi @ 72° F	68° to 240°	Soft	DIN 2391, DIN EN 10305-4	000000000	00000

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About Metal Tubing

Low-Carbon Steel Rectangular Tubes

Low-Carbon Steel Round Tubes

Smooth-Bore Seamless Steel Tubing