Stress-Proof Steel | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Diameter Diameter

	Length Length

1 ft.

3 ft.

6 ft.

	Yield Strength Yield Strength

100,000 psi

125,000 psi

	Hardness Rating Hardness Rating

Medium

Hard

	Hardness Hardness

	Tolerance Rating Tolerance Rating

Undersized

Tight

	Specifications Met Specifications Met

ASTM A108

ASTM A311

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

DFARS Specialty Metals
COTS-Exempt

	Certificate Certificate

	Material Certificate with Traceable Lot Number

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

REACH Compliant

	Elongation Elongation

6.5%

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

RoHS Compliant

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

Yield Strength: 100,000 psi
Hardness:
Inch sizes: Rockwell C25 (Hard)
Metric sizes: Rockwell C15 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Specifications Met:
Inch sizes: ASTM A108, ASTM A311
Metric sizes: ASTM A108, ASTM A311

Often called Stressproof, these rods are stress-relieved to minimize warping during machining. Containing more carbon and manganese than other easy-to-machine carbon steels, 1144 offers higher yield strength and hardness, even without further heat treatment. Use it to fabricate parts that require stress resistance.

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	Heat Treatment		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.003" to 0"	Stress Relieved	00000000	00000	00000	00000
5/16"	-0.003" to 0"	Stress Relieved	00000000	0000	0000	00000
3/8"	-0.003" to 0"	Stress Relieved	00000000	0000	0000	00000
7/16"	-0.004" to 0"	Stress Relieved	00000000	0000	0000	00000
1/2"	-0.003" to 0"	Stress Relieved	00000000	0000	00000	00000
9/16"	-0.004" to 0"	Stress Relieved	00000000	0000	00000	00000
5/8"	-0.003" to 0"	Stress Relieved	00000000	0000	00000	00000
11/16"	-0.004" to 0"	Stress Relieved	00000000	0000	00000	00000
3/4"	-0.003" to 0"	Stress Relieved	00000000	0000	00000	00000
13/16"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	00000
7/8"	-0.003" to 0"	Stress Relieved	0000000	00000	00000	00000
15/16"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	00000
1"	-0.003" to 0"	Stress Relieved	0000000	00000	00000	00000
1 1/16"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	00000
1 1/8"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	00000
1 3/16"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	00000
1 1/4"	-0.003" to 0"	Stress Relieved	0000000	00000	00000	00000
1 5/16"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	000000
1 3/8"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	000000
1 7/16"	-0.004" to 0"	Stress Relieved	00000000	00000	00000	000000
1 1/2"	-0.003" to 0"	Stress Relieved	0000000	00000	00000	000000
1 9/16"	-0.005" to 0"	Stress Relieved	00000000	00000	00000	000000
1 5/8"	-0.005" to 0"	Stress Relieved	00000000	00000	00000	000000
1 3/4"	-0.004" to 0"	Stress Relieved	0000000	00000	000000	000000
1 13/16"	-0.005" to 0"	Stress Relieved	00000000	00000	000000	000000
1 7/8"	-0.005" to 0"	Stress Relieved	00000000	00000	000000	000000
2"	-0.004" to 0"	Stress Relieved	0000000	00000	000000	000000
2 1/8"	-0.005" to 0"	Stress Relieved	00000000	00000	000000	000000
2 1/4"	-0.005" to 0"	Stress Relieved	00000000	00000	000000	000000
2 3/8"	-0.005" to 0"	Stress Relieved	00000000	00000	000000	000000
2 1/2"	-0.004" to 0"	Stress Relieved	0000000	00000	000000	000000
2 5/8"	-0.005" to 0"	Stress Relieved	00000000	000000	000000	000000
2 3/4"	-0.006" to 0"	Stress Relieved	00000000	000000	000000	000000
3"	-0.005" to 0"	Stress Relieved	0000000	000000	000000	000000
3 1/8"	-0.006" to 0"	Stress Relieved	00000000	000000	000000	000000
3 1/4"	-0.006" to 0"	Stress Relieved	00000000	000000	000000	000000
3 1/2"	-0.006" to 0"	Stress Relieved	00000000	000000	000000	000000
3 5/8"	-0.006" to 0"	Stress Relieved	00000000	000000	000000	000000
3 3/4"	-0.006" to 0"	Stress Relieved	00000000	000000	000000	00000000
4"	-0.005" to 0"	Stress Relieved	0000000	000000	000000	00000000
4 1/2"	-0.007" to 0"	Stress Relieved	00000000	000000	000000	00000000
6mm	-0.013mm to 0mm	Stress Relieved	0000000	0000	00000	00000
8mm	-0.013mm to 0mm	Stress Relieved	00000000	0000	00000	00000
10mm	-0.013mm to 0mm	Stress Relieved	0000000	00000	00000	00000
12mm	-0.013mm to 0mm	Stress Relieved	00000000	00000	00000	00000
15mm	-0.013mm to 0mm	Stress Relieved	0000000	00000	00000	00000
20mm	-0.013mm to 0mm	Stress Relieved	00000000	00000	00000	000000
25mm	-0.013mm to 0mm	Stress Relieved	0000000	00000	000000	000000
30mm	-0.013mm to 0mm	Stress Relieved	00000000	00000	000000	000000

Tight-Tolerance High-Strength Easy-to-Machine 1144 Carbon Steel Rods

Yield Strength: 100,000 psi
Hardness: Rockwell C22 (Hard)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Specifications Met: ASTM A108, ASTM A311

These rods are precision ground and held to a strict straightness tolerance, so they're all set for turning applications in your lathe. Often called Stressproof, they are stress-relieved to minimize warping during machining. Containing more carbon and manganese than other easy-to-machine carbon steels, 1144 offers higher yield strength and hardness, even without further heat treatment. Use it to fabricate parts that require stress resistance.

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	Heat Treatment		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.0005" to 0"	Stress Relieved	0000000	00	000000	000000
5/16"	-0.0005" to 0"	Stress Relieved	0000000	00	00000	00000
3/8"	-0.0005" to 0"	Stress Relieved	000000	000000	00000	00000
1/2"	-0.0005" to 0"	Stress Relieved	0000000	00000	00000	00000
9/16"	-0.0005" to 0"	Stress Relieved	0000000	00000	00000	00000
5/8"	-0.0005" to 0"	Stress Relieved	000000	00000	00000	00000
3/4"	-0.0005" to 0"	Stress Relieved	0000000	00000	00000	000000
7/8"	-0.0005" to 0"	Stress Relieved	0000000	00000	00000	000000
1"	-0.0005" to 0"	Stress Relieved	000000	00000	00000	000000
1 1/8"	-0.0005" to 0"	Stress Relieved	0000000	00000	000000	000000
1 1/4"	-0.0005" to 0"	Stress Relieved	0000000	00000	000000	000000
1 3/8"	-0.0005" to 0"	Stress Relieved	0000000	00000	000000	000000
1 1/2"	-0.0005" to 0"	Stress Relieved	000000	00000	000000	000000
1 3/4"	-0.001" to 0"	Stress Relieved	0000000	00000	000000	00
2"	-0.001" to 0"	Stress Relieved	0000000	000000	000000	00
2 1/4"	-0.001" to 0"	Stress Relieved	0000000	000000	000000	00
2 1/2"	-0.001" to 0"	Stress Relieved	0000000	000000	000000	00
2 3/4"	-0.001" to 0"	Stress Relieved	0000000	000000	000000	00
3"	-0.001" to 0"	Stress Relieved	0000000	000000	000000	00

Ultra-Strength Easy-to-Machine 1144 Carbon Steel Rods

Yield Strength: 125,000 psi
Hardness: Rockwell C30 (Hard)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated
Specifications Met: ASTM A108

Also known as Fatigueproof, these rods have enhanced strength and resistance to breaking from repeated impact compared to High-Strength Easy-to-Machine 1144 Carbon Steel Rods. Containing more carbon and manganese than other easy-to-machine carbon steels, 1144 carbon steel offers higher yield strength and hardness, even without further heat treatment. Use it to fabricate parts that require stress resistance.

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	Heat Treatment	Specifications Met		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.004" to 0"	Stress Relieved	ASTM A108	0000000	00000	00000	00000
5/16"	-0.004" to 0"	Stress Relieved	ASTM A108	0000000	0000	0000	00000
3/8"	-0.004" to 0"	Stress Relieved	ASTM A108	0000000	0000	0000	00000
1/2"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	0000	00000	00000
5/8"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	0000	00000	00000
3/4"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	00000	00000	00000
7/8"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	00000	00000	00000
1"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	00000	00000	00000
1 1/4"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	00000	00000	000000
1 1/2"	-0.005" to 0"	Stress Relieved	ASTM A108	0000000	00000	000000	000000
1 3/4"	-0.006" to 0"	Stress Relieved	ASTM A108	0000000	00000	000000	000000
2"	-0.006" to 0"	Stress Relieved	ASTM A108	0000000	00000	000000	000000
2 1/2"	-0.006" to 0"	Stress Relieved	ASTM A108	0000000	000000	000000	000000
3"	-0.006" to 0"	Stress Relieved	ASTM A108	0000000	000000	000000	000000