Nov 19, 2025 Leave a message

UNS-C44300-Admiralty-Brass-Tube.pdf

ASTM B111 / ASME SB 111 C44300 Admiralty Brass marine environment pipe

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
C44300 tube
ASTM B111 C44300
C44300 copper
C44300 brass pipe

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
KS South Korea D5301
C4430
ISS India Cuzn28Sn
ASTM United States B111
C44300
JIS Japan H3100(92)
C4430 P/R
DIN German 2.047
EN Europe 1785
CW706R
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.

C44300 brass pipe C44300 copper

 

Send Inquiry

whatsapp

Phone

E-mail

Inquiry