The copper based C44300 Admiralty Brass alloy is ideal for manufacturing heat exchanger tubes. The alloy is manufactured to cater engineering requirements and find applications mainly in oil and gas industries that also require its non corrosive properties.
Applications :
- Industrial Evaporator Tubing
- Heat Exchanger Tubing
- Condenser Tube Plates
- Distiller Tubes
- Oil Well Pump Liner
- Ferrules
- Bourdon Tubes
- Condenser Tubes
Equivelent Specifications
SPECIFICATIONS |
DESIGNATION |
ISO |
CuZn28Sn1 |
Europen |
CuZn28Sn1As |
BS |
CZ 111 |
JIS |
C 4430 |
Russian |
L62-1 |
Chemical Composition:
|
As |
Cu |
Fe |
Pb |
Sn |
Zn |
Min/Max |
0.02 - 0.06 |
70.0 - 73.0 |
0.06 |
0.07 |
0.8 - 1.2 |
Rem |
Nominals |
0.0400 |
71.0000 |
- |
- |
1.0000 |
28.0000 |
Fabrication Properties
Joining Technique |
Suitability |
Brazing |
Excellent |
Butt Weld |
Good |
Capacity for Being Cold Worked |
Excellent |
Capacity for Being Hot Formed |
Fair |
Coated Metal Arc Welding |
Not Recommended |
Gas Sheilded Arc Welding |
Fair |
Machinability rating |
30 |
Oxyacetylene Welding |
Good |
Seam Weld |
Not Recommended |
Soldering |
Excellent |
Spot Weld |
Good |
Specifications
End Product |
Specification |
Plate, Clad |
ASTM B432 |
Plate, Condenser Tube |
ASME SB171, ASTM B171 |
Tube |
ASTM B135 |
Tube, Condenser |
ASME SB111, ASTM B111 |
Tube, Finned |
ASME SB359, ASTM B359 |
Tube, U-Bend |
ASME SB395, ASTM B395 |
Tube, Welded |
ASME SB543, ASTM B543 |
Physical Properties
Product Property |
US Customary |
Metric |
Coefficient of Thermal Expansion |
11.2 ·10-6 per oF (68-572 F) |
20.2 · 10 6? per °C (20-300 C) |
Density |
0.308 lb/in3 @ 68 F |
8.53 gm/cm3 @ 20 C |
Electrical Conductivity |
25 %IACS @ 68 F |
0.146 MegaSiemens/cm @ 20 C |
Electrical Resistivity |
41.5 ohms-cmil/ft @ 68 F |
6.9 microhm-cm @ 20 C |
Melting Point Liquid US |
1720 F |
938 C |
Melting Point Solid US |
1650 F |
899 C |
Modulas of Elasticity in Tension |
16000 ksi |
110000 MPa |
Modulas of Rigidity |
6000 ksi |
41370 MPa |
Specific Gravity |
8.53 |
8.53 |
Specific Heat Capacity |
0.09 Btu/lb/°F @ 68 F |
377.1 J/kg · °K at 293 K |
Thermal Conductivity |
64.0 Btu · ft/(hr · ft2 ·°F) @ 68 F |
110.8 W/m · °K at 20 C |
Sizes Available
HOLLOW RODS |
Min Bore Size 20 mm and Max OD 100 mm |
ROUND RODS |
6mm To 130 mm |
HEX |
5mm To 60mm |
SQUARE |
4mm To 60mm |
FLAT |
5mm Min Thickness and max Width 120mm |
PROFILES / SECTIONS |
AS per Customer Drawing |
BILLETS |
Up to 200mm |
INGOTS |
AS per Specification |
Company Information
About Us
Established in the year 1989, Shree Extrusions Limited has earned a prestigious position as a manufacturer, supplier and exporter of Extruded Profile in Non Ferrous Metals. Our never-ending list of products includes Aluminum Bronze Rods, Nickel Silver Wire, Aluminum Bronze, Copper Alloy and Brass Rod. Moreover, we also offer Brass Wire for Leaded Ball Pen Tip, Nickel Silver Wire for Ball Pen Tip, Brass Wire, Aluminum Silicon Bronze Rod and Naval Brass. We have been able to earn the accolades of many renowned organizations such as Govt. of India Ministry Defense, Hindustan Shipyard Ltd, Naval Dockyard and Ship Building Centre owing to the international level of quality.
Though, our products are acclaimed worldwide but we have built a strong client base in Asian Countries. Our well established infrastructural setup is located in Jamnagar, Gujrat. The use of latest technologies such as Spectrometers (spark as well as ERF X-Ray Fluorescence) and Electronic & Computerized UTM makes us offer world-class quality products. The entire range products offered by us are valued for its excellent performance, longer service life, economical prices and high tensile strength. These are mostly used in architectural fittings, hardware, electric components, forged components, industrial valves, defense components and pump rods. We fabricate our range of products using high-grade raw material such as virgin non ferrous metals, scraps and turning.
Our mentor, Shri Radheshyam L. Kabra has more than 35 years of experience in the domain, enabling him to proficiently manage our organizational activities. Under his able guidance, we have been able to achieve enviable market credibility.
Certifications

We offer finest range of extruded non ferrous metals & metal profiles, which are appreciated all through the Asian countries. Due to hard-work and premium quality products, we have earned the certificates & approvals from the following prestigious organizations:
- Govt. of India Ministry Defense
- Our Laboratory has been approved by SQAE(AR), Mumbai
- Garden Reach Shipbuilders & Engineers Limited, Calcutta
- Material Organization Mumbai, Vishakhapatanam, Khambhalia
- Hindustan Shipyard Ltd., Vishakhapatanam
- Mazagon Dock Limited, Mumbai, India
- Naval Dockyard, Mumbai
- Ship Building Centre, Vishakhapatanam
Applications Areas
Our range of aluminium extruded profiles in non ferrous metals finds applications in various areas given below:
- Defense components
- Naval components
- Bearing cages
- Condensed components
- Marine hardware
- Propeller shaft
- Architectural fittings
- Hardware
- Electric components
- Forged components
- Industrial valves
- Pump rods
Along with the standard specifications, we also suffice custom order of clients to meet special applicability.
Contact Us

Shree Extrusions Limited
Contact Person :
Pratik Kabra (CEO)
Address : No. 217/218, G. I. D. C., Phase - 2, Near Dared, Okha Rajkot Road
Jamnagar (India) - 361004
Phone :
+(91) - (288) - 2730249
+(91) - (288) - 2730118
Call Us : 08447564621