YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T, L/C AT SIGHT |
| Supply Ability | 1000 TONS / month |
| Delivery Time | Depends on order quantity |
| Packaging Details | Wooden box with plastic cap |
| Product Name | Admiralty Brass seamless Tube |
| Standard | ASTM B111/ASME SB111 |
| Material grade | C44300 / CZ111 / C106 / CuZn28Sn1As (2.0470) |
| Temper Designation | O61 Annealed |
| Brand Name | YUHONG |
| Model Number | ASTM B111 C44300 Tube |
| Certification | ISO 9001/TUV/PED |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C AT SIGHT | Supply Ability | 1000 TONS / month |
| Delivery Time | Depends on order quantity | Packaging Details | Wooden box with plastic cap |
| Product Name | Admiralty Brass seamless Tube | Standard | ASTM B111/ASME SB111 |
| Material grade | C44300 / CZ111 / C106 / CuZn28Sn1As (2.0470) | Temper Designation | O61 Annealed |
| Brand Name | YUHONG | Model Number | ASTM B111 C44300 Tube |
| Certification | ISO 9001/TUV/PED | Place of Origin | China |
| High Light | C44300 Admiralty Brass Tube ，ASTM B111 condenser tube ，Admiralty Brass Tube ASTM B111 | ||
Overview of C44300 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 Name | Admiralty Brass |
| Standards | ASTM 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 Strength | 310 – 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
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1990
Total Annual:
50M-75M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor. ... Yuhong Holding Group equipments production base at Jiangsu Jiangyin City, Jinjiang City and Yancheng City. Total production area around 184000 square meters, main products : Heat Exchanger, Condenser, Pressure Vessel , Fired Heater, Economizer, Columns, Reactor. ...
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