24" Springs | McMaster-Carr

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

These fabric-covered rubber springs stretch up to three times their original length—much farther than traditional extension springs, tie downs, and shock cords. All have carabiner ends with spring-loaded latch openings. Do not use to hold overhead loads.

As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch of extension.

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

		Load, lbs.					Carabiner
OD	Extended Lg. @ Max. Load	Min.	Max.	Spring Rate, lbs./in.	Material	Sleeve Material	Lg.	Opening Wd.	Material	Temperature Range, °F		Each
24" Lg.
1"	60"	Not Rated	33	0.92	Latex Rubber	Polypropylene Fabric	2"	5/16"	Black-Oxide Steel	30° to 130°	0000000	000000
1.75"	60"	Not Rated	47	1.31	Latex Rubber	Polypropylene Fabric	2"	5/16"	Black-Oxide Steel	30° to 130°	0000000	00000
1.75"	60"	Not Rated	77	2.14	Latex Rubber	Polypropylene Fabric	2"	5/16"	Black-Oxide Steel	30° to 130°	0000000	00000

Wear-Resistant 1095 Spring Steel Sheets and Strips

Yield Strength: Not Rated
Hardness: Rockwell C50 (Very Hard)

1095 spring steel has a higher carbon content than 1075 spring steel for better wear resistance. It is often fabricated into parts that will be used under continual stress, such as spring clips and washers. This material is also known as blue-tempered steel.

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.

0.004" Thick. (-0.0004" to 0.0004" Tolerance)
Wd.	Lg., ft.	Heat Treatment	Mechanical Finish	Color		Each
6"	2	Hardened	Polished	Blue	00000000	000000
0.005" Thick. (-0.0005" to 0.0005" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
0.008" Thick. (-0.0008" to 0.0008" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
0.01" Thick. (-0.001" to 0.001" Tolerance)
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.015" Thick. (-0.001" to 0.001" Tolerance)
8"	2	Hardened	Polished	Blue	00000000	00000
10"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.02" Thick. (-0.001" to 0.001" Tolerance)
8"	2	Hardened	Polished	Blue	00000000	00000
10"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.025" Thick. (-0.001" to 0.001" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
8"	2	Hardened	Polished	Blue	00000000	00000
10"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.028" Thick. (-0.001" to 0.001" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
8"	2	Hardened	Polished	Blue	00000000	00000
0.03" Thick. (-0.002" to 0.002" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
8"	2	Hardened	Polished	Blue	00000000	00000
0.032" Thick. (-0.002" to 0.002" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
8"	2	Hardened	Polished	Blue	00000000	00000
10"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.035" Thick. (-0.002" to 0.002" Tolerance)
6"	2	Hardened	Polished	Blue	00000000	00000
8"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.042" Thick. (-0.002" to 0.002" Tolerance)
4"	2	Hardened	Polished	Blue	00000000	00000
6"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.05" Thick. (-0.002" to 0.002" Tolerance)
3"	2	Hardened	Polished	Blue	00000000	00000
4"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
0.062" Thick. (-0.002" to 0.002" Tolerance)
2 1/2"	2	Hardened	Polished	Blue	00000000	00000
3"	2	Hardened	Polished	Blue	00000000	00000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000

Easy-to-Form Wear-Resistant 1095 Spring Steel Sheets

Yield Strength: Not Rated
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated

These sheets have a softened temper, which is also known as annealed, so they can be easily formed into shape and then heat treated for spring properties. 1095 spring steel has a higher carbon content than 1075 spring steel for better wear resistance. It is often fabricated into parts that will be used under continual stress, such as spring clips and washers.

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.

				8" × 24"		24" × 24"
Thick.	Thick. Tolerance	Heat Treatment	Flatness Tolerance		Each		Each
0.015"	-0.002" to 0.002"	Annealed (Softened)	3/8"	00000000	000000	000000	00
0.02"	-0.002" to 0.002"	Annealed (Softened)	3/8"	00000000	00000	00000000	000000
0.025"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000	00000000	00000
0.032"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000	00000000	00000
0.035"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000	00000000	00000
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000	00000000	00000
0.05"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000	00000000	00000
0.062"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000	000000	00
0.062"	-0.002" to 0.002"	Annealed (Softened)	3/8"	000000	00	00000000	00000
0.065"	-0.002" to 0.002"	Annealed (Softened)	3/8"	000000	00	00000000	00000
0.072"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000	000000	00
0.072"	-0.002" to 0.002"	Annealed (Softened)	3/8"	000000	00	00000000	00000
0.078"	-0.002" to 0.002"	Annealed (Softened)	3/8"	00000000	00000	00000000	00000
0.083"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000	000000	00
0.094"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000	00000000	00000
0.109"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000	00000000	000000
1/8"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000	00000000	000000
0.134"	-0.003" to 0.003"	Annealed (Softened)	3/8"	00000000	00000	00000000	000000
0.156"	-0.003" to 0.003"	Annealed (Softened)	3/8"	00000000	00000	00000000	000000
0.187"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	000000	00000000	000000

1075 Spring Steel Strips

Yield Strength: Not Rated
Hardness: Rockwell C45 (Hard)

1075 spring steel is easier to bend than 1095, but it has less bounce-back after heat treating. It is often used for springs and shims. This material is also known as scaleless steel.

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.

0.094" Thick. (-0.002" to 0.002" Tolerance)
Wd.	Lg., ft.	Heat Treatment		Each
2"	2	Hardened	00000000	000000
2 1/2"	2	Hardened	00000000	00000
1/8" Thick. (-0.002" to 0.002" Tolerance)
1 1/4"	2	Hardened	00000000	00000
1 1/2"	2	Hardened	00000000	00000

Easy-to-Form 1075 Spring Steel Sheets

Yield Strength: 50,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C64
Specifications Met: ASTM A684

These sheets have a softened temper, which is also known as annealed, so they can be easily formed into shape and then heat treated for spring properties. 1075 spring steel is easier to bend than 1095, but it has less bounce-back after heat treating. It is often used for springs and shims.

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.

				8" × 24"
Thick.	Thick. Tolerance	Heat Treatment	Flatness Tolerance		Each
0.015"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	000000
0.02"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.025"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.032"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.035"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.042"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.05"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.062"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.072"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.083"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.094"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.109"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.125"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	00000
0.187"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	000000

Easy-To-Form Multipurpose 1050 Spring Steel Sheets

Yield Strength: 38,000 psi
Hardness: Rockwell B74
Heat Treatable: Yes
Maximum Hardness After Heat Treatment: Rockwell C58
Specifications Met: ASTM A682, ASTM A684

Containing more carbon than low-carbon steel—but less than 1095 spring steel—1050 spring steel is easily formed into parts such as washers, brackets, and springs before being hardened for use. It resists stress, so it won’t snap when formed or twisted. Because it has a lower carbon content than 1095 spring steel, it’s not as wear resistant.

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.

				8" × 24"
Thickness	Thickness Tolerance	Heat Treatment	Flatness Tolerance		Each
0.025"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	000000
0.032"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.035"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.042"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.05"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.062"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.072"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.083"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	00000
0.094"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	000000
0.109"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	00000000	000000
1/8"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	00000000	000000
0.187"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	00000000	000000

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

Extra-Stretch Extension Springs

Wear-Resistant 1095 Spring Steel Sheets and Strips

Easy-to-Form Wear-Resistant 1095 Spring Steel Sheets

1075 Spring Steel Strips

Easy-to-Form 1075 Spring Steel Sheets

Easy-To-Form Multipurpose 1050 Spring Steel Sheets