50mm Rods | McMaster-Carr

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29 Products

About Shafts

About Stainless Steel

About Aluminum

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

Tight-Tolerance High-Strength 17-4 PH Stainless Steel

Each piece is precision ground to offer tighter tolerances than standard 17-4 PH stainless steel. With a higher chromium content than 15-5 PH stainless steel, this high-strength material offers better corrosion resistance. It's also known as 630 stainless steel. It maintains its corrosion resistance in temperatures up to 1100° F.

Rods are held to a strict diameter tolerance, so they’re ready for turning in your lathe.

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.

Rods

Yield Strength: 118,000 psi
Hardness: See table
Heat Treatment: Annealed (Softened)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C47
Specifications Met: ASTM A564

Dia.	Dia. Tolerance	Fabrication	Hardness	Straightness Tolerance	Magnetic Properties		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50mm	-0.013mm to 0mm	Cold Worked	Rockwell C28 (Hard)	1/16" per ft.	Magnetic	0000000	0000000	0000000	0000000	0000000	0000000

Hardened Tight-Tolerance Easy-to-Machine 416 Stainless Steel

Hardened for superior wear resistance, these rods are precision ground to a tight diameter tolerance so they’re ready for turning in a lathe. One of the most machinable types of stainless steel available, 416 contains sulfur for fast machining without clogging cutting tools. It's used for gears, screws, and shafts. It maintains its corrosion resistance in temperatures up to 1200° F.

Metric rods are also known as Project 70+.

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 Rods

Yield Strength: 138,000 psi
Hardness: Rockwell C30 (Hard)
Heat Treatment: Hardened
Specifications Met: ASTM A582

Dia., mm	Dia. Tolerance , mm	Fabrication	Mechanical Finish	Straightness Tolerance	Magnetic Properties		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50	-0.0127 to 0	Cold Worked	Precision Ground	1/16" per ft.	Magnetic	00000000	0000000	0000000	0000000

Low-Carbon Steel Rods and Discs

Yield Strength: See table
Hardness: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: See table
Specifications Met: See table

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 fixture clamps, mounting plates, and spacers. This material can be surface hardened with heat treating.

Ground rods are decarb-free for a uniform surface that will consistently accept heat treating.

If you don't see the size you're looking for, please specify a length under additional rod lengths.

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., mm	Dia. Tolerance, mm	Yield Strength, psi	Hardness	Max. Hardness After Heat Treatment	Mechanical Finish	Specifications Met		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50	-0.02 to 0	50,000	Rockwell B85 (Medium)	Not Rated	Ground, Polished, Turned	ASTM A108	00000000	0000000	0000000	0000000
50	-0.07 to 0	60,000	Rockwell B85 (Medium)	Not Rated	__	ASTM A108	0000000	00000	000000	000000

Tight-Tolerance Ultra-Machinable 12L14 Carbon Steel Rods

Yield Strength: 65,000 psi
Hardness: Rockwell B80 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C65
Specifications Met: ASTM A108

Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts.

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	Mechanical Finish	Straightness Tolerance		1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50mm	-0.012mm to 0mm	Precision Ground	1/16" per 3 ft.	0000000	0000000	0000000	0000000	0000000

Tight-Tolerance Multipurpose 4140 Alloy Steel Rods

Yield Strength: 60,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A108

Ready for turning in your lathe, these rods are precision ground and held to a strict straightness tolerance. 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.

Dia.	Dia. Tolerance	Heat Treatment	Mechanical Finish	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50mm	-0.013mm to 0mm	Annealed (Softened)	Precision Ground	1/16" per 3 ft.	0000000	000000	0000000	0000000	0000000	0000000

Chrome-Plated Hardened Multipurpose 4140 Alloy Steel Rods

Yield Strength: 100,000 psi
Hardness: Rockwell C30 (Hard)

The chrome plating on these rods increases corrosion resistance. They are hardened for increased abrasion and impact resistance. 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.

Dia.	Dia. Tolerance	Finish Thick.		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50mm	-0.038mm to 0mm	0.0005"	00000000	0000000	0000000	0000000	0000000	0000000

High-Strength Multipurpose 4140 Alloy Steel Rods

Yield Strength: 130,000 psi
Hardness: Rockwell C32 (Hard)
Specifications Met: ASTM A108

Often called ETD-150, these rods are made from a modified version of 4140 alloy steel and have been drawn at high temperatures for excellent strength. Also known as chrome-moly steel, they are used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. They resist 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.

Dia.	Dia. Tolerance	Heat Treatment	Straightness Tolerance		1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50mm	-0.025mm to 0mm	Hardened	3/16" per 10 ft.	0000000	0000000	0000000	0000000	0000000

Tight-Tolerance Multipurpose 6061 Aluminum Rods and Discs

These rods and discs are precision ground to offer tighter tolerances than standard 6061 rods and discs. The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.

Rods are held to a strict straightness tolerance, so they’re all set for turning in your lathe.

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., mm	Dia. Tolerance, mm	Fabrication	Heat Treatment	Mechanical Finish	Temperature Range, °F	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
50	-0.013 to 0.013	Extruded	Hardened	Precision Ground	-320° to 300°	0.021" per ft.	0000000	0000000	0000000	0000000

Linear Motion Shafts

Smooth, hard, and wear resistant, linear motion shafts work with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. The smooth surface reduces friction and wear on the bearing—the lower the microinch value a shaft has, the smoother its finish and the less friction it will create. All are turned, ground, and polished to tight diameter and straightness tolerances.

Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1055 and 1060 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 52100 alloy steel shafts are good for high-load applications. They are, however, more difficult to machine than carbon steel shafts.

Stainless steel shafts are more corrosion resistant than steel shafts; however, they’re not as hard as steel shafts and can be more difficult to machine. 420 stainless steel and 440C stainless steel shafts have good corrosion resistance. Shafts with chamfered edges have their edges ground to reduce damage to bearings, housings, and other components during installation.

Case-hardened shafts are hardened only on the surface of the shaft, which increases wear resistance while allowing the center to remain soft for absorbing stresses caused by shifting loads.

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

Metric—1055 Carbon Steel

50 mm Dia. (Tolerance: -0.016 mm to 0 mm)
Lg., mm	Lg. Tolerance, mm	Straightness Tolerance	Surface Smoothness, microinch	Edge Type	Hardness Rating	Hardness	Heat Treatment	Yield Strength, psi		Each
200	-0.5 to 0.5	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	00000000	000000
500	-0.8 to 0.8	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	0000000	000000
1,000	-0.8 to 0.8	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	0000000	000000
1,200	-1.2 to 1.2	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	0000000	000000
1,500	-1.2 to 1.2	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	0000000	000000
2,000	-1.2 to 1.2	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	0000000	000000
2,500	-2 to 2	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C59	Case Hardened	50,000	000000	000000

Metric—1060 Carbon Steel

50 mm Dia. (Tolerance: -0.015 mm to 0 mm)
Lg.	Straightness Tolerance	Surface Smoothness, microinch	Edge Type	Hardness Rating	Hardness	Heat Treatment	Yield Strength, psi		Each
152mm	0.050 mm per 300 mm	10	Chamfered	Very Hard	Rockwell C60	Case Hardened	50,000	00000000	000000
305mm	0.050 mm per 300 mm	10	Chamfered	Very Hard	Rockwell C60	Case Hardened	50,000	00000000	000000
914mm	0.050 mm per 300 mm	10	Chamfered	Very Hard	Rockwell C60	Case Hardened	50,000	00000000	000000
1,829mm	0.050 mm per 300 mm	10	Chamfered	Very Hard	Rockwell C60	Case Hardened	50,000	00000000	000000

Metric—52100 Alloy Steel

50 mm Dia. (Tolerance: -0.025 mm to -0.009 mm)
Lg., mm	Lg. Tolerance, mm	Straightness Tolerance	Surface Smoothness	Edge Type	Hardness Rating	Hardness	Heat Treatment	Yield Strength, psi		Each
400	-0.5 to 0.5	0.050 mm per 300 mm	0.4 microns	Chamfered	Very Hard	Rockwell C60	Case Hardened	57,000	00000000	0000000
600	-0.8 to 0.8	0.050 mm per 300 mm	0.4 microns	Chamfered	Very Hard	Rockwell C60	Case Hardened	57,000	00000000	000000

Metric—420 Stainless Steel

50 mm Dia. (Tolerance: -0.016 mm to 0 mm)
Lg., mm	Lg. Tolerance, mm	Straightness Tolerance	Surface Smoothness, microinch	Edge Type	Hardness Rating	Hardness	Heat Treatment	Yield Strength, psi		Each
500	-0.8 to 0.8	0.03 mm per 300 mm	12	Chamfered	Very Hard	Rockwell C52	Case Hardened	33,000	00000000	0000000

Keyed Rotary Shafts

Combine these shafts with a machine key (not included) to transmit torque to gears, sprockets, and other power transmission components. All have an ANSI standard keyway (keys not included; see our selection of key stock). Their edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.

Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1045 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use.

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

Fully Keyed

	Keyway
Lg.	Lg.	Wd.	Dp.	ANSI Keys Included	Edge Type	Yield Strength, psi		Each
Metric—1045 Carbon Steel (Rockwell B95)
50mm Dia.
300mm	300mm	14mm	5.5mm	No	Chamfered	75,000	00000000	000000
500mm	500mm	14mm	5.5mm	No	Chamfered	75,000	00000000	00000
1,000mm	1,000mm	14mm	5.5mm	No	Chamfered	75,000	00000000	000000
1,200mm	1,200mm	14mm	5.5mm	No	Chamfered	75,000	00000000	000000
1,500mm	1,500mm	14mm	5.5mm	No	Chamfered	75,000	00000000	000000
1,800mm	1,800mm	14mm	5.5mm	No	Chamfered	75,000	0000000	000000