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B111 C44300 Admiralty Brass Seamless Tube, Widely Used In Condenser And Heat Exchanger

B111 C44300 Admiralty Brass Seamless Tube, Widely Used In Condenser And Heat Exchanger

Brand Name YUHONG
Model Number B111/SB111 C44300 Seamless Tube
Certification ISO9001, PED etc.
Place of Origin CHINA
Minimum Order Quantity 300kgs
Price Negotiable
Payment Terms T/T, L/C AT SIGHT
Supply Ability 1000 TONS / month
Delivery Time Depends on quantity
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name: C44300 Admiralty Brass Seamless Tube
Standard ASTM B111/ASME SB111
Material Grade C44300 / CZ111 / C106 / CuZn28Sn1As (2.0470)
Temper Designation O61 Annealed
Detailed Product Description

Admiralty Brass Seamless Tube ASTM B111 C44300, Widely Used In Condenser And Heat Exchanger

 

 

Introduction of C44300 Admiralty Brass Tube

 

ASTM B111 C44300 refers to seamless tubes made from Admiralty Brass, a copper-zinc-tin alloy known for its excellent corrosion resistance, especially in marine and industrial heat exchanger applications. C44300 contains about 70% copper, 28% zinc, and 1% tin, with a small amount of arsenic to prevent dezincification.

 

These tubes are widely used in condenser and heat exchanger systems, particularly in freshwater and brackish water environments, due to their high thermal conductivity, good strength, and resistance to biofouling and erosion. Manufactured according to ASTM B111, the tubes are typically supplied in annealed (O61) or light-drawn tempers, making them suitable for tube expansion, bending, and fabrication.

 

 

C44300 Admiralty Brass Tube – Overview

 

UNS Designation

C44300

Common NameAdmiralty Brass
StandardsASTM B111 (for seamless condenser and heat exchanger tubes)
Composition~70% Copper, ~28% Zinc, ~1% Tin, small amounts of Iron
Form
Seamless tube (most common), rolled, drawn

 

 

Chemical Composition (%) (Typical Range per ASTM B111)

 

Element

Percentage (%)

Copper (Cu)70.0 – 73.0
Zinc (Zn)Remainder (~27–29)
Tin (Sn)0.9 – 1.2
Iron (Fe)0.06 max
Lead (Pb)0.07 max

 

 

Mechanical Properties (Annealed Condition)

 

Property

Value (Typical)

Tensile Strength310 – 450 MPa
Yield Strength (0.5% ext.)~125 MPa
Elongation (in 50 mm)≥ 30%
Hardness~65 HRB

 

 

Key Features of ASTM B111 C44300 tubes

  • Excellent corrosion resistance in fresh, salt, and brackish water.

  • Tin addition improves resistance to dezincification.

  • Good thermal conductivity.

  • Non-sparking, non-magnetic.

  • Easily fabricated, soldered, and brazed.

 

 

Applications of ASTM B111 C44300 tubes

  • Heat exchangers

  • Condenser tubes (especially in steam power plants)

  • Seawater cooling systems

  • Desalination units

  • Evaporators

 

 

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