JIS H 3300 C4430 Admiralty Brass Pipes are seamless copper alloy pipes that are used in freshwater and seawater cooling systems for use in heat transfer equipment. This grade typically includes about 71% of copper, 1% of tin and a controlled amount of arsenic to enhance corrosion resistance and prevent dezincification. It is classified as C4430T according to JIS H 3300, and is widely used in marine condensers, power plant cooling systems, as well as in industrial heat exchanger production that is based on Japanese materials standards. It has good thermal conductivity and corrosion resistance for water-side which is helpful for its reliable condenser performance. Amardeep Steel offers quality inspection and mill test certificate for Admiralty Brass Pipes as per JIS H 3300 C4430 grade to domestic and foreign customers.
Specifications of JIS H 3300 C 4430 Admiralty Brass Pipe
Parameter | Specification |
|---|---|
Standard | JIS H 3300 (copper and copper alloy seamless pipes and tubes) |
Alloy and Form | C4430T, admiralty brass seamless tube |
Outside Diameter | 6 mm to 108 mm |
Wall Thickness | 0.5 mm to 3.0 mm |
Length | Straight up to 15 m, cut lengths or U-bends |
Temper | O (annealed) for condenser tube; others on request |
Tests | Eddy current or hydrostatic, flattening, flaring, expansion, residual stress, grain size |
Documents | EN 10204 3.1 mill test certificate showing the JIS limits; 3.2 or third-party inspection on request |
Chemical Composition of JIS H 3300 C 4430 Admiralty Brass Pipe
Element | JIS H 3300 C4430T (%) |
|---|---|
Copper (Cu) | 70.0 to 73.0 |
Tin (Sn) | 0.9 to 1.2 |
Arsenic (As) | 0.02 to 0.06 |
Lead (Pb), max | 0.05 |
Iron (Fe), max | 0.05 |
Zinc (Zn) | Remainder |
Mechanical Properties of JIS H 3300 C 4430 Admiralty Brass Pipe
Property | Value | Basis / Standard |
|---|---|---|
Tensile Strength, min | 315 MPa | JIS H 3300 C4430T |
Elongation, min | 30% | JIS H 3300 C4430T |
Grain Size | 0.010 to 0.045 mm | JIS H 3300 |
JIS H 3300 C 4430 Admiralty Brass Pipe Physical Properties
Physical Property | Metric | Imperial |
|---|---|---|
Density | 8.53 g/cm³ | 0.308 lb/in³ |
Melting Range | 899 to 938°C | 1,650 to 1,720°F |
Thermal Conductivity (20°C) | 111 W/m·K | 64 Btu/ft·h·°F |
Electrical Conductivity | 25% IACS | 25% IACS |
Thermal Expansion (20 to 300°C) | 20.2 µm/m·K | 11.2 µin/in·°F |
Size Chart of JIS H 3300 C 4430 Admiralty Brass Pipe
Parameter | Range |
|---|---|
Outside diameter | 6 mm to 108 mm (confirm client range) |
Wall thickness | 0.5 mm to 3.0 mm |
Length | Straight up to 15 m, cut lengths or U bends |
Temper | O (annealed) |
Applications and Industrial Uses of JIS H 3300 C 4430 Admiralty Brass Pipe
- Thermal Power Plants
- Marine Engineering
- Shipbuilding Industry
- Retubing Japanese OEM condensers
- Petrochemical Plants
- Desalination Plants
- Chemical Processing Plants
- HVAC and Refrigeration Systems
Frequently Asked Questions
1. What is JIS H 3300 C4430 Admiralty Brass Pipe?
It is a seamless copper-zinc alloy tube containing approximately 71% copper, 1% tin, and a controlled arsenic addition, used in condensers and heat exchangers.
2. Is JIS C4430 equivalent to ASTM B111 C44300?
They are equivalent Admiralty Brass grades, but JIS limits lead and iron more tightly. If your drawing specifies JIS H 3300, order the tubes to that standard.
3. What does the T suffix mean in C4430T?
The suffix T identifies the tube product form under JIS H 3300. C4430T specifies Admiralty Brass tubes.
4. Is C4430 Admiralty Brass suitable for seawater applications?
Yes. Its tin and arsenic additions improve resistance to seawater corrosion and dezincification under suitable operating conditions.
5. What is the tensile strength of JIS C4430T?
In the annealed O temper, JIS H 3300 C4430T requires a minimum tensile strength of 315 MPa and 30% elongation.
6. What are the lead and iron limits for C4430T?
JIS H 3300 limits lead to 0.05% and iron to 0.05%, compared with 0.07% lead and 0.06% iron permitted under ASTM B111 C44300.
