UNS C44300 Admiralty Brass Tube PDF
|
Item |
Specification |
|
UNS Number |
C44300 |
|
Common Name |
Tin Brass, Naval Brass (Arsenical Brass) |
|
Chinese Designation |
HSn70-1 (GB/T 5232-1985) |
|
European Standard |
CuZn28Sn1 (DIN 17660) |
|
Primary Standards |
ASTM B111/B135, SAE J463, GB/T 5231 |
Product Features
Exceptional Corrosion Resistance: Tin (0.8–1.3%) and arsenic (0.03–0.06%) synergistically inhibit dezincification (ASTM B858 compliant).
High Strength-Ductility Balance: Annealed tensile strength ≥310 MPa, elongation ≥40%; cold-worked strength up to 600 MPa.
Thermal Conductivity: 109 W/(m·K), electrical conductivity 28% IACS, ideal for heat exchange systems.
Stress Corrosion Sensitivity: Low-temp stress relief required after cold working to prevent cracking.
Process Compatibility: Supports cold bending, flaring, brazing; hot working range 700–800°C.
ASTM B111 / ASME SB 111 C44300 Admiralty Brass Chemical Composition
| Grade | As | Fe | Tin | Cu | Pb | Zn |
| C44300 | 0.02-0.06 | 0.06 | 0.9-1.2 | 70.0-73.0 | 0.07 | remainder |




Physical Properties Of Admiralty Brass Square Pipes For Coolers
| Admiralty Brass Tubes For Evaporators & Coolers Properties * | English | Metric |
|---|---|---|
| Melting Point | 1650 ~ 1720 °F | 899 ~ 938 °C |
| Tensile Strength, min. | 45 ksi | 310 MPa |
| Density | 0.308 lb/in³ | 8.53 g/cc |
| Yield Strength, min. | 15 ksi | 105 MPa |
| Specific Heat Capacity | 0.09 BTU/lb-°F @ 70ºF | 0.09 cal/g-°C @ 20ºC |
| CTE, linear | 11.2 10-6/°F @ 70.0 – 570 °F | 20.2 10-6/°C @ 20.0 – 300 °C |
| Thermal Conductivity | 64 BTU/ft2/ft/h/°F @ 70.0 °F | 109 W/m-K @ 20.0 °C |
Admiralty Brass Rectangle Tubes For Evaporators Equivalent
| Standard | Country | Descripion | ||||
|---|---|---|---|---|---|---|
| BS | United Kingdom | 2871 CZ111 |
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| KS | South Korea | D5301 C4430 |
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| ISS | India | Cuzn28Sn | ||||
| ASTM | United States | B111 C44300 |
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| JIS | Japan | H3100(92) C4430 P/R |
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| DIN | German | 2.047 | ||||
| EN | Europe | 1785 CW706R |
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| RUSSIAN (GOST) | Russia | L62 – 1 | ||||
Application:
Copper pipes are used in a variety of industries; including marine environment, power generation, offshore, oil and gas, and defense.
The drawn copper pipe has both cold working and hot working performance, has the highest degree of seawater corrosion and scouring ability, and high strength. Typical users are distillation and desalination plants, as well as marine coolers and heat exchangers.
Using vacuum melting technology, the quality of the pipe is high: the chemical composition is stable, the size is accurate, and the inner and outer surfaces are clean, smooth and bright. Good mechanical properties-no pores, cracks, pinhole leakage and other defects.
Our inventory is in stock
| C44300 copper tube | C44300 condenser tube | Marine grade copper tube |
| C44300 brass tube | Copper alloy C44300 tube | C44300 brass pipe supplier |
| Admiralty brass C44300 tube | C44300 heat exchanger tube | ASTM B111 C44300 |
| C44300 seamless tube | UNS C44300 tube | C44300 welded tube |
| Arsenical brass tube C44300 | C44300 copper pipe | C44300 brass hollow bar |
about us
Our Product Portfolio
We supply an extensive inventory of copper products in various forms, grades, and tempers to meet your exact specifications.
1. Copper & Copper Alloy Tubes/Pipes
Type: Copper Seamless Tube, Copper Welded Tube, Capillary Tube, Refrigeration Tube, Heat Exchanger Tube, Condenser Tube, Dehydrated Tube.
Key Alloys: C10200 (OFHC Copper), C11000 (ETP Copper), C12200 (DHP Copper), C44300, C68700, C70600 (Copper Nickel 90/10), C71500 (Copper Nickel 70/30).
2. Copper & Copper Alloy Sheets/Plates
Type: Copper Sheet, Copper Plate, Copper Foil, Copper Thin Sheet, Copper Thick Plate, Embossed Sheet, Perforated Sheet.
Key Alloys: C10200, C11000, C17200 (Beryllium Copper), C26000 (Cartridge Brass), C26800, C28000 (Muntz Metal).
3. Copper & Copper Alloy Bars/Rods
Type: Copper Round Bar, Copper Square Bar, Copper Hexagonal Bar, Copper Flat Bar, Copper Wire Rod.
Key Alloys: C10100, C11000, C36000 (Free-Cutting Brass), C38500 (Architectural Bronze).
4. Copper & Copper Alloy Strips/Wires
Type: Copper Strip, Copper Coil, Copper Flat Wire, Copper Bare Wire, Copper Braided Wire, Copper Tin-Plated Wire.
Key Alloys: C11000, C26000 (Brass Strip), C51900 (Phosphor Bronze), C52100, C70400.
Quality & Standards
We guarantee that all our products comply with international and national standards, ensuring performance, reliability, and safety.
International Standards: ASTM, EN, DIN, JIS, ISO.
Common Standards: ASTM B111,ASTM B68, B75, B88, B96, B152, B187, B465.
Why Choose Us?
One-Stop Shop: A comprehensive range of copper products simplifies your sourcing.
Quality Assured: Rigorous inspection and material traceability.
Global Logistics: Efficient and reliable shipping to destinations worldwide.
Technical Support: Expert assistance with material selection and specification.






