Copper Pipes, Tubes, Coils & Fittings
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Brass Tubes for Sugar Industries
Product Overview
Brass tubes for sugar industries supplied by R V Metal Corporation are engineered for demanding thermal and corrosive environments commonly found in sugar mills. These tubes are extensively used in evaporators, juice heaters, condensers, and vacuum pans, where resistance to corrosion, excellent heat transfer efficiency, and long service life are critical. Manufactured from high-quality brass alloys such as Admiralty Brass and Aluminium Brass, these tubes offer superior resistance to impingement attack, dezincification, and scaling caused by cane juice, molasses, and high-temperature process water. Our brass tubes are produced under strict dimensional and metallurgical control to ensure consistent wall thickness, precise tolerances, and reliable performance in continuous-duty operations. Available in seamless form with smooth internal surfaces, they help improve thermal efficiency, reduce fouling, and minimize maintenance downtime, making them a trusted choice for EPC contractors, sugar plant consultants, and mill operators seeking dependable tubing solutions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product | Brass Tubes for Sugar Industry Applications |
| Base Alloys | Admiralty Brass, Aluminium Brass, High-Zinc Brass (as per requirement) |
| UNS Grades | C44300 (Admiralty Brass), C68700 (Aluminium Brass) |
| Manufacturing Process | Seamless, Cold Drawn |
| Outside Diameter Range | 12.7 mm to 114.3 mm (1/2" to 4-1/2") |
| Wall Thickness | 1.0 mm to 4.0 mm (custom thickness available) |
| Length | Standard 6 m, 5.8 m, 4 m or cut-to-length |
| Temper | Annealed (O), Half Hard (H55), Hard (H80) |
| Surface Finish | Smooth, Clean, Pickled, Free from Scale and Defects |
| Corrosion Resistance | Excellent resistance to dezincification, impingement attack, and cane juice corrosion |
| Thermal Conductivity | High – suitable for heat exchangers, evaporators, and condensers |
| Pressure Rating | As per ASTM / EN standards and application design conditions |
| Standards | ASTM B111 / B111M, ASTM B395, EN 12451, IS 4074 |
| Testing | Eddy Current Test, Hydrostatic Test, Chemical & Mechanical Testing |
| Quality Documentation | Mill Test Certificate (EN 10204 3.1) |
| Typical Applications | Evaporators, Juice Heaters, Condensers, Vacuum Pans, Heat Exchangers in Sugar Mills |
Chemical Composition
| Element | Admiralty Brass (UNS C44300) |
Aluminium Brass (UNS C68700) |
Typical High-Zinc Brass (Sugar Industry Use) |
|---|---|---|---|
| Copper (Cu) | 70.0 – 73.0 % | 76.0 – 79.0 % | 60.0 – 63.0 % |
| Zinc (Zn) | Balance | Balance | Balance |
| Tin (Sn) | 0.8 – 1.2 % | – | – |
| Aluminium (Al) | – | 1.8 – 2.5 % | – |
| Iron (Fe) | 0.02 – 0.06 % | 0.03 – 0.06 % | ≤ 0.10 % |
| Arsenic (As) | 0.02 – 0.06 % | 0.02 – 0.06 % | ≤ 0.02 % |
| Lead (Pb) | ≤ 0.05 % | ≤ 0.05 % | ≤ 0.10 % |
| Impurities (Total) | ≤ 0.30 % | ≤ 0.30 % | ≤ 0.50 % |
UNS Codes & Grades
| UNS Code | Common Grade Name | Primary Alloy Type | Key Alloying Elements | Typical Standards | Suitability for Sugar Industry |
|---|---|---|---|---|---|
| C44300 | Admiralty Brass | Copper–Zinc–Tin Brass | Cu, Zn, Sn, As | ASTM B111, ASTM B395, EN 12451 | Excellent resistance to dezincification and corrosion in cane juice, evaporators, and condensers |
| C44500 | Admiralty Brass (High Tin) | Copper–Zinc–Tin Brass | Cu, Zn, Sn, As | ASTM B111 | Enhanced corrosion resistance for high-temperature sugar processing and vacuum pans |
| C68700 | Aluminium Brass | Copper–Zinc–Aluminium Brass | Cu, Zn, Al, Fe, As | ASTM B111, ASTM B395, EN 12451 | Superior erosion–corrosion resistance in juice heaters and cooling water circuits |
| C46400 | Naval Brass | Copper–Zinc–Tin Brass | Cu, Zn, Sn | ASTM B21, ASTM B171 | Used for fittings and auxiliary tubing in sugar plants where moderate corrosion resistance is required |
| C26000 | Cartridge Brass | Copper–Zinc Brass | Cu, Zn | ASTM B135, EN 12164 | Limited use; suitable only for non-critical, low-corrosion sugar plant applications |
Mechanical, Physical & Fabrication Properties
| Property Category | Property | Admiralty Brass (UNS C44300) |
Aluminium Brass (UNS C68700) |
Engineering Significance in Sugar Industry |
|---|---|---|---|---|
| Mechanical Properties | Tensile Strength | 380 – 480 MPa | 450 – 550 MPa | Withstands internal pressure and thermal cycling in evaporators and heaters |
| Yield Strength (0.2%) | 150 – 200 MPa | 170 – 220 MPa | Prevents permanent deformation under sustained operating loads | |
| Elongation | 25 – 35 % | 20 – 30 % | Ensures ductility during expansion, rolling, and vibration service | |
| Hardness | HB 70 – 90 | HB 80 – 100 | Balanced wear resistance without brittleness | |
| Physical Properties | Density | 8.5 g/cm³ | 8.3 g/cm³ | Accurate weight calculation for tube bundles and heat exchangers |
| Thermal Conductivity | 110 – 125 W/m·K | 120 – 140 W/m·K | High heat transfer efficiency in juice heaters and condensers | |
| Coefficient of Thermal Expansion | 20.5 × 10⁻⁶ /°C | 19.5 × 10⁻⁶ /°C | Controls tube expansion during temperature fluctuations | |
| Electrical Conductivity | 20 – 28 % IACS | 18 – 25 % IACS | Secondary relevance; confirms alloy purity and stability | |
| Fabrication Properties | Cold Workability | Excellent | Good | Allows tube drawing, bending, and finning without cracking |
| Hot Workability | Good | Very Good | Supports extrusion and hot forming of thick-walled tubes | |
| Brazing & Soldering | Excellent | Good | Reliable joint integrity in tube-to-tube-sheet connections | |
| Weldability | Limited (not preferred) | Limited (special procedures) | Welding generally avoided; expanded or brazed joints preferred |
Common Names & International Identifiers
| Material / Alloy | Common Industry Names | UNS Code | ASTM / ASME | EN / DIN | IS (India) | Typical Usage in Sugar Industry |
|---|---|---|---|---|---|---|
| Admiralty Brass |
Admiralty Brass Tube Arsenical Brass Tube Sugar Mill Brass Tube |
C44300 | ASTM B111 / B111M | EN 12451 – CuZn28Sn1As | IS 407 / IS 1545 | Juice heaters, evaporators, condensers with moderate water velocity |
| Aluminium Brass |
Aluminium Brass Tube High Velocity Brass Tube Condenser Brass Tube |
C68700 | ASTM B111 / B111M | EN 12451 – CuZn20Al2As | IS 1545 | Main condensers, cooling water circuits, high erosion zones |
| Arsenical Brass |
Arsenic Brass Tube Dezincification-Resistant Brass |
C44400 | ASTM B111 | EN 12451 – CuZn28Sn1 | IS 407 | Low-dezincification risk zones in juice heating systems |
| Naval Brass (Occasional Use) |
Naval Brass Tube Tin Brass Tube |
C46400 | ASTM B21 / B21M | EN CW713R | IS 291 | Ancillary piping, mechanical components (not preferred for condensers) |
Standards & International Equivalents
| Alloy / Material | UNS Code | ASTM / ASME Standards | EN / DIN Standards | IS (Indian Standards) | BS Standards | Typical Sugar Industry Equipment |
|---|---|---|---|---|---|---|
| Admiralty Brass | C44300 | ASTM B111 / B111M ASTM B21 |
EN 12451 – CuZn28Sn1As DIN 17660 |
IS 407 IS 1545 |
BS 2871 Part 2 CZ110 | Juice heaters, evaporators, low-to-medium velocity condensers |
| Aluminium Brass | C68700 | ASTM B111 / B111M | EN 12451 – CuZn20Al2As | IS 1545 | BS 2871 Part 2 CZ111 | Main condensers, cooling water lines, high erosion zones |
| Arsenical Brass | C44400 | ASTM B111 | EN 12451 – CuZn28Sn1 | IS 407 | BS 2871 Part 2 CZ109 | Low-dezincification juice heating applications |
| Naval Brass | C46400 | ASTM B21 / B21M | EN CW713R | IS 291 | BS 2871 Part 2 CZ112 | Ancillary piping, structural and mechanical components |
Applications
| Application Area | Specific Equipment / Use | Recommended Brass Grade | Key Performance Requirement | Reason Brass is Preferred |
|---|---|---|---|---|
| Juice Heating Section | Juice Heaters, Clarifier Heaters | Admiralty Brass (C44300) | Resistance to dezincification | Arsenic addition prevents zinc leaching in hot sugar juice |
| Evaporation Section | Multiple-Effect Evaporators | Admiralty Brass (C44300) | Thermal efficiency & corrosion resistance | Good heat transfer with stable performance in sucrose-rich fluids |
| Condensation System | Main Condensers, Barometric Condensers | Aluminium Brass (C68700) | Erosion & seawater corrosion resistance | Aluminium oxide film resists high-velocity and impure cooling water |
| Cooling Water Circuits | Cooling Water Tubes, Heat Rejection Lines | Aluminium Brass (C68700) | High flow velocity tolerance | Superior resistance to erosion-corrosion and biofouling |
| Vacuum System | Vacuum Condenser Tubes | Admiralty Brass (C44300) | Stable performance under low pressure | Maintains structural integrity and heat transfer under vacuum |
| Low-Pressure Steam Heating | Steam Calandrias | Admiralty Brass (C44300) | Steam-side corrosion resistance | Brass handles wet steam and condensate without rapid scaling |
| Auxiliary Heat Exchangers | Lube Oil Coolers, Bearing Oil Coolers | Aluminium Brass (C68700) | Oil-water separation safety | Low reactivity with oils and consistent thermal performance |
| Instrumentation & Utility Lines | Sample Cooling Lines, Small Utility Heat Exchangers | Admiralty Brass / Naval Brass | Dimensional stability & machinability | Easy fabrication and long service life in plant utilities |
| Descaling & Cleaning Systems | Chemical Cleaning Heat Exchangers | Admiralty Brass (C44300) | Chemical compatibility | Better tolerance to controlled acidic cleaning cycles |
Standard Brass Tubes for Sugar Industries Dimensional Chart
| Brass Tube Dimensional Chart (Sugar Industry – Condenser / Evaporator / Heater Service) | |||||||
|---|---|---|---|---|---|---|---|
| Tube OD (in) | OD (mm) | Wall 1.0 mm | Wall 1.2 mm | Wall 1.5 mm | |||
| ID (mm) | Wt (kg/m) | ID (mm) | Wt (kg/m) | ID (mm) | Wt (kg/m) | ||
| 3/8 | 9.52 | 7.52 | 0.227 | 7.12 | 0.266 | 6.52 | 0.320 |
| 1/2 | 12.70 | 10.70 | 0.311 | 10.30 | 0.367 | 9.70 | 0.447 |
| 5/8 | 15.88 | 13.88 | 0.394 | 13.48 | 0.467 | 12.88 | 0.572 |
| 3/4 | 19.05 | 17.05 | 0.478 | 16.65 | 0.566 | 16.05 | 0.696 |
| 7/8 | 22.22 | 20.22 | 0.561 | 19.82 | 0.666 | 19.22 | 0.821 |
| 1 | 25.40 | 23.40 | 0.644 | 23.00 | 0.764 | 22.40 | 0.945 |
| 1-1/8 | 28.58 | 26.58 | 0.727 | 26.18 | 0.862 | 25.58 | 1.069 |
| 1-1/4 | 31.75 | 29.75 | 0.810 | 29.35 | 0.961 | 28.75 | 1.192 |
| 1-1/2 | 38.10 | 36.10 | 0.977 | 35.70 | 1.159 | 35.10 | 1.442 |
| 1-3/4 | 44.45 | 42.45 | 1.144 | 42.05 | 1.357 | 41.45 | 1.691 |
| 2 | 50.80 | 48.80 | 1.311 | 48.40 | 1.555 | 47.80 | 1.940 |
Notes (Important): Dimensions are standard reference sizes commonly used in sugar plant heat-exchanger service. Theoretical weight is calculated using a nominal brass density (~8.47 g/cc) and is for estimation only. Actual weight may vary by alloy family (Admiralty Brass / Aluminium Brass / Brass), temper, and manufacturing tolerances.
Supply Forms: Straight lengths (typ. 3 m / 5 m / 6 m) and cut-to-length available. Special OD/ID/wall on request.
