C46400 Naval Brass Tubing

Short Description:

C46400 is the classic Naval Brass and gets its name from its historical application in the marine trades. Sometimes referred to as Marine Brass, this metal has been widely used in military applications. Thanks to the addition of tin and zinc, it holds up well in wet conditions - including underwater environments.

Naval Brass has been used as propeller shafts, marine hardware, and fittings. It is a great metal choice to use in both salt water and freshwater applications. In addition, it has many industrial applications.

As mentioned, because of its strong, corrosive-resistant and hardness it is also a great material to use for industrial applications. It has been used for welding rods, condenser tubes, structures, aircraft parts, decorative and more.

Atlas carries C46400 Naval Brass in Sheet, Plate and Rounds and we also have it in a specialty product, C46400 Diamond Cut Naval Brass Plate. We carry a wide range of diameters in solid bar stock and thicknesses in the sheet and plate. We will cut the material to length. C46400 is one of the top choices for industrial and marine atmosphere applications. This is due to it's high corrosion resistance to seawater.

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C46400 Naval Brass has fair to excellent corrosion resistance. Excellent hot workability and hot forgeability. Fabricated by blanking, drawing, bending, heading and upsetting, hot forging, pressing.

C46400 TYPICAL USES

Some of the typical areas that C46400 is used in, is as follows:

· Air Pressure Conveyor Systems

· Sound Proofing Equipment

· Springs

· Chain

· Bead Chain

· Tubing for Instruments

· Tubing for Machines

· Heat Exchangers

· Pump Cylinders

· Wire Screens

· Pumps

· Liners

· Power Cylinders

TYPICAL C46400 CHEMICAL COMPOSITION

(%max., unless shown as range or min.)

	Cu	Fe	Pb	Zn
Min./Max.	68.5-71.5	.05	.07	Rem.
Nominal	70.0	-	-	30.0

Note: Cu + Sum of Named Elements, 99.7% min.

TYPICAL C46400 MECHANICAL PROPERTIES

(measured at room temperature, 68 F (20 C)

Temper	Section Size	Cold Work	Typ/ Min	Temp	Tensile Strength	Yield Strength (0.5% ext. under load)	Yield Strength (0.2% offset)	Yield Strength (0.05% offset)	El	Rockwell Hardness				Vickens Hard.	Brinell Hard.		Shear Strength	Fatigue Strength*	Izod Impact Strength
	in.	%		F	ksi	ksi	ksi	ksi	%	B	C	F	30T	500	500	3000	ksi	ksi	ft-lb
	mm.			C	MPa	MPa	MPa	MPa									MPa	MPa	J
Tube
H80	0.0	35	TYP	68	78	64	-	-	8	82	-	-	73	-	-	-	-	-	0.0
	0.0			20	538	441	-	-	8	82	-	-	73	-	-	-	-	-	0.0
Flat Products
OS015	0.04	0	TYP	68	53	22	-	-	54	-	-	78	43	-	-	-	35	14	0.0
	1			20	365	152	-	-	54	-	-	78	43	-	-	-	241	97	0.0
H02	0.04	0	TYP	68	62	52	-	-	25	70	-	-	65	-	-	-	40	18	0.0
	1			20	427	359	-	-	25	70	-	-	65	-	-	-	276	124	0.0
Flat Products
H06	0.04	0	TYP	68	86	65	-	-	5	88	-	-	76	-	-	-	46	-	0.0
	1			20	593	448	-	-	5	88	-	-	76	-	-	-	317	-	0.0
OS100	0.04	0	TYP	68	44	11	-	-	66	-	-	54	11	-	-	-	-	13	0.0
	1			20	303	76	-	-	66	-	-	54	11	-	-	-	-	90	0.0
OS035	0.04	0	TYP	68	49	17	-	-	57	-	-	68	31	-	-	-	34	14	0.0
	1			20	338	117	-	-	57	-	-	68	31	-	-	-	234	97	0.0
H04	0.04	0	TYP	68	76	63	-	-	8	82	-	-	73	-	-	-	44	21	0.0
	1			20	524	434	-	-	8	82	-	-	73	-	-	-	303	145	0.0
Flat Products
H08	0.04	0	TYP	68	94	65	-	-	3	91	-	-	77	-	-	-	48	23	0.0
	1			20	648	448	-	-	3	91	-	-	77	-

Frequently Asked Questions About Naval Brass

Does naval brass rust?

No, naval brass does not rust. It is a strong alloy that is resistant to corrosion. This is why it makes such a great option for those applications that involve both freshwater and saltwater. In fact, it is highly capable of resisting normal corrosion caused by salt.

What grade of commercial quality is naval brass?

While the composition may vary slightly, naval brass is a copper alloy usually composed of 59% copper, 40% zinc, and 1% tin. It also has a trace amount of lead. It can be categorized in a sub-family for brasses referred to as Alpha Beta Brasses or Duplex Brasses. They get this classification due to their characteristic nature of being harder and stronger than other types of brass.

What is dezincification?

As brass corrodes, it can target zinc which puts it through a dezincification process. What this means is that zinc is removed from the metal and copper is left behind. It can cause changes in the color (often turning brass pink), but in more severe cases it can actually weaken brass and even perforate it.

Dezincification is exactly why brass doesn’t do well in saltwater, soft water, or water with high temperatures.

Naval brass, on the other hand, is able to avoid the dezincification process by keeping a lower zinc content and adding a touch of tin. This is what makes this strong, durable metal so ideal for wet applications.

Can naval brass be welded?

Naval brass can be welded, yes. But unlike some other metals, it can be difficult to do, thanks to its high zinc to copper ratio.

Keep in mind that welding naval brass can be dangerous. So, you will want to always take precaution due to the toxic zinc and copper fumes that can be released during the welding process.

To weld naval brass, you will want to use gas-shielded arc processes like MIG and TIG. And determining the gas to use should be dependent on the thickness of your brass. Argon is a great option for those less than 3mm. And anything greater, a 75/25 mixture of helium and argon will work well.