ASTM B21 Brass | McMaster-Carr

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	Specifications Met Specifications Met	Show

ASTM

ASTM B21

	Specifications Met Specifications Met	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

	Shape Shape

	Sheet and Bar
	Rod and Disc

	System of Measurement System of Measurement

Inch

	Diameter Diameter

	Thickness Thickness

	Width Width

	Material Material

464 Brass

485 Brass

	Tolerance Rating Tolerance Rating

Standard

	Temper Rating Temper Rating

1/2 Hard

	Hardness Rating Hardness Rating

Soft

Not Rated

	Hardness Hardness

Rockwell B55

Rockwell B60

Not Rated

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Yield Strength Yield Strength

20,000 to 22,999 psi

23,000 to 29,999 psi

	Temper Temper

H02

M30

	Appearance Appearance

	Plain

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

DFARS Specialty Metals
COTS-Exempt

	Modulus of Elasticity Modulus of Elasticity

15.0 ksi × 10³

	Surface Resistivity Surface Resistivity

39.9 Ohms

	Elongation Elongation

15%

19%

	Thermal Conductivity Thermal Conductivity

67 Btu/hr. × ft./°F @ 68° F

	Melting Point Temperature Melting Point Temperature

1630° F

	Density Density

0.304 lbs./cu. in.

0.305 lbs./cu. in.

	Fabrication Fabrication

Cold Worked

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About Copper, Brass, and Bronze

A lead-free alternative to 485 brass, 464 brass offers good weldability, strength, and wear resistance. It’s widely used for marine hardware, pump and propeller shafts, and rivets.

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 ACTIVITY after your order ships.

Bars

Yield Strength: 22,000 psi
Hardness: Rockwell B55 (Soft)
Temper: H02 (1/2 Hard)
Heat Treatable: No
Specifications Met: ASTM B21

1/4" Thick. (-0.005" to 0.005" Tolerance)
Wd.	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1"	1/2" per 10 ft.	0000000	000000	000000	000000
1 1/2"	1/2" per 10 ft.	0000000	00000	00000	000000
3/8" Thick. (-0.005" to 0.005" Tolerance)
4"	1/2" per 10 ft.	0000000	000000	000000	000000
1/2" Thick. (-0.005" to 0.005" Tolerance)
1/2"	1/2" per 10 ft.	0000000	00000	00000	00000
1"	1/2" per 10 ft.	0000000	00000	000000	000000
1 1/2"	1/2" per 10 ft.	0000000	00000	000000	000000
2"	1/2" per 10 ft.	0000000	00000	000000	000000
2 1/2"	1/2" per 10 ft.	0000000	000000	000000	000000
3"	1/2" per 10 ft.	0000000	000000	000000	000000
5/8" Thick. (-0.006" to 0.006" Tolerance)
5/8"	1/2" per 10 ft.	0000000	00000	00000	000000
3/4" Thick. (-0.006" to 0.006" Tolerance)
3/4"	1/2" per 10 ft.	0000000	00000	000000	000000
1"	1/2" per 10 ft.	0000000	00000	000000	000000
1 1/2"	1/2" per 10 ft.	0000000	00000	000000	000000
3"	1/2" per 10 ft.	0000000	000000	000000	000000
1" Thick. (-0.006" to 0.006" Tolerance)
1"	1/2" per 10 ft.	0000000	00000	000000	000000
1 1/4"	1/2" per 10 ft.	0000000	000000	000000	000000
1 1/2"	1/2" per 10 ft.	0000000	000000	000000	000000
2"	1/2" per 10 ft.	0000000	000000	000000	000000
3"	1/2" per 10 ft.	0000000	000000	000000	000000
1 1/2" Thick. (-0.007" to 0.007" Tolerance)
1 1/2"	1/2" per 10 ft.	0000000	000000	000000	000000
2" Thick. (-0.007" to 0.007" Tolerance)
2"	1/2" per 10 ft.	0000000	000000	000000	00000000

Weldable Marine-Grade 464 Brass Rods

Yield Strength: 22,000 psi
Hardness: Rockwell B55 (Soft)
Temper: H02 (1/2 Hard)
Heat Treatable: No
Specifications Met: ASTM B21

A lead-free alternative to 485 brass, 464 brass offers good weldability, strength, and wear resistance. It’s widely used for marine hardware, pump and propeller shafts, and rivets.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance Range	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
3/16"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	000000	000000
1/4"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	0000	00000	00000
5/16"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	00000
3/8"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	00000
7/16"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	00000
1/2"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	00000
9/16"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	00000
5/8"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	00000
3/4"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	00000	000000
7/8"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	000000	000000
1"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	000000	000000
1 1/4"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	00000	000000	000000
1 1/2"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	000000	000000	000000
2"	-0.003" to 0.003"	1/2" per 10 ft.	0000000	000000	000000	000000

Marine-Grade 485 Brass

Yield Strength: 25,000 psi
Hardness:
3/16" to 7/16" dia. rods: Not Rated
All other sizes: Rockwell B60 (Soft)
Temper:
3" dia. rods: M30
All other sizes: H02 (1/2 Hard)
Heat Treatable: No
Specifications Met: ASTM B21

Also known as high-leaded naval brass, 485 brass contains lead for good machinability. It is commonly used for marine hardware, valve stems, and screw machine products.

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 ACTIVITY after your order ships.

Dia.	Dia. Tolerance Range		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
3/16"	-0.002" to 0.002"	0000000	00000	000000	000000
1/4"	-0.002" to 0.002"	0000000	0000	00000	00000
5/16"	-0.002" to 0.002"	0000000	0000	00000	00000
3/8"	-0.002" to 0.002"	0000000	0000	00000	00000
7/16"	-0.002" to 0.002"	0000000	00000	00000	00000
1/2"	-0.002" to 0.002"	0000000	00000	00000	00000
5/8"	-0.002" to 0.002"	0000000	00000	00000	000000
3/4"	-0.002" to 0.002"	0000000	00000	00000	000000
7/8"	-0.002" to 0.002"	0000000	00000	000000	000000
1"	-0.002" to 0.002"	0000000	00000	000000	000000
1 1/8"	-0.003" to 0.003"	0000000	00000	000000	000000
1 1/4"	-0.003" to 0.003"	0000000	00000	000000	000000
1 3/8"	-0.003" to 0.003"	0000000	00000	000000	000000
1 1/2"	-0.003" to 0.003"	0000000	000000	000000	000000
1 3/4"	-0.003" to 0.003"	0000000	000000	000000	000000
2"	-0.003" to 0.003"	0000000	000000	000000	000000
3"	-0.005" to 0.005"	0000000	000000	000000	00000000

About Copper, Brass, and Bronze

Weldable Marine-Grade 464 Brass Sheets and Bars

Weldable Marine-Grade 464 Brass Rods

Marine-Grade 485 Brass