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B43 Seamless Red Brass Pipe

B43 Seamless Red Brass Pipe is a type of red brass pipe made primarily of copper (around 85%), with smaller amounts of zinc and tin. It is known for its excellent corrosion resistance, high durability, and smooth interior, which makes it ideal for fluid handling and plumbing applications.

Chemical Composition

Element

Composition (%)

Copper

84.0 - 86.0

Lead

0.05 max

Iron

0.05 max

Zinc

Rem.

The pipe is manufactured from Copper Alloy UNS No. C23000, which consists of approximately 85% copper, with strict limits on lead and iron content, and the remainder being zinc

Physical Properties

Property

Value

Density

8.75 g/cm³

Melting Point

1010°C (1850°F)

Thermal Conductivity

159 W/m·K

Electrical Conductivity

28% IACS

Coefficient of Thermal Expansion

18.7 µm/m·K (20-300°C)

Modulus of Elasticity

110 GPa

Poisson's Ratio

0.33

Mechanical Properties

Property

Annealed (O61)

Drawn General Purpose (H58)

Tensile Strength (min)

40,000 psi (275 MPa)

50,000 psi (345 MPa)

Yield Strength (min)

12,000 psi (83 MPa)

30,000 psi (205 MPa)

Elongation in 2 in. (50.8 mm) (min)

35%

15%

Rockwell Hardness (approx.)

B40

B65

Thermal Properties

Property

Value

Melting Point (Liquidus)

1027°C (1880°F)

Melting Point (Solidus)

988°C (1810°F)

Thermal Conductivity

159 W/m·K (92 Btu/ft·hr·°F)

Coefficient of Thermal Expansion

18.7 µm/m·K (10.4 × 10⁻⁶ in/in/°F)

Specific Heat Capacity

377 J/kg·K (0.09 Btu/lb/°F)

Fabrication Properties

Property

Characteristic

Machinability

Good

Formability

Excellent (annealed), Good (drawn)

Weldability

Good

Brazeability

Excellent

Solderability

Excellent

Annealing Temperature

425-600°C (800-1100°F)

Hot Working Temperature

650-750°C (1200-1400°F)

Common Applications

Common applications for B43 Seamless Red Brass Pipe include:

  • Plumbing Systems: Used in residential and commercial water supply lines due to its corrosion resistance.
  • Water Distribution: Employed in potable water systems and distribution lines for drinking water.
  • Wastewater Systems: Suitable for carrying wastewater and drainage due to its anti-corrosive properties.
  • Heat Exchangers: Used in heat exchanger tubes because of its excellent thermal conductivity.
  • Industrial Piping: Employed in general-purpose industrial piping systems handling gases or liquids.
  • Marine Applications: Used in seawater piping and other marine hardware exposed to corrosive environments.
  • Air Conditioning and Refrigeration: Suitable for components in HVAC systems due to its thermal properties.
  • Fire Sprinkler Systems: Employed in fire suppression systems for its durability and reliability under pressure.
  • Instrumentation and Gauges: Used in instrumentation requiring corrosion-resistant and pressure-resistant materials.

How Can Drawn Metal Help

If you have any queries about the metal products that we offer, don’t hesitate to get in touch with us. 

 

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