JIS H 3300 C7150 Copper Nickel Condenser Tubes are for use in heat exchangers, seawater-cooled condensers, marine cooling systems and more. This is a 70/30 copper nickel alloy containing about 30% nickel, with additions of iron and manganese which enhance resistance to seawater corrosion and erosion under suitable operating conditions. Power plants, shipbuilding, desalination facilities, and industrial cooling equipment rely on the use of these tubes for their reliable heat transfer needs. C7150 corresponds to ASTM UNS C71500, but the buyer must check chemical composition, dimensions and pertinent standards for substitution. Amardeep Steel is manufacturing and exporting copper nickel condenser tubes for industrial purposes, also help to select material and enquiring about the product.
Technical Data
Specifications of JIS H 3300 C 7150 Copper Nickel Condenser Tube
| Parameter | Details |
|---|---|
|
Standard |
JIS H 3300 (seamless copper and copper alloy pipes and tubes) |
|
Grade |
C7150 (C7150T), 70/30 copper nickel |
|
Type |
Seamless |
|
Technique |
Cold drawn / extruded |
|
Surface |
Bright annealed / polished |
|
Size |
Up to 4 inch OD. Custom sizes on request (confirm with mill) |
|
Ends |
Plain or bevelled |
|
Testing |
Eddy current, hydrostatic, flattening |
|
Packing |
Seaworthy export packing |
Chemical Compositions of JIS H 3300 C 7150 Copper Nickel Condenser Tube
| Element | Limit (%) | Nominal (%) |
|---|---|---|
|
Copper (Cu) |
Remainder |
69.5 |
|
Nickel (Ni) |
29.0 to 33.0 |
30.0 |
|
Iron (Fe) |
0.40 to 1.0 |
0.5 |
|
Manganese (Mn) |
1.0 max |
Not stated |
|
Lead (Pb) |
0.05 max |
Not stated |
|
Zinc (Zn) |
1.0 max |
Not stated |
JIS H 3300 C 7150 Copper Nickel Condenser Tube Mechanical Properties
| Property | Value |
|---|---|
|
Yield strength, min |
100 MPa |
|
Elongation, min |
30% |
|
Hardness |
80 to 120 HV |
Physical Properties of C 7150 Copper Nickel Condenser Tube
| Property (at 20°C / 68°F) | Metric | Imperial |
|---|---|---|
|
Density |
8.94 g/cm³ |
0.323 lb/in³ |
|
Melting range (solidus to liquidus) |
1171°C to 1238°C |
2140°F to 2260°F |
|
Thermal expansion (20°C to 300°C) |
16.2 µm/m·°C |
9.0 x 10⁻⁶ /°F |
|
Thermal conductivity |
29 W/m·K |
17 Btu/ft·hr·°F |
|
Specific heat |
377 J/kg·K |
0.09 Btu/lb·°F |
|
Electrical conductivity |
4% IACS |
4% IACS |
|
Electrical resistivity |
0.374 µΩ·m |
225 ohm·cmil/ft |
|
Modulus of elasticity (tension) |
152 GPa |
22,000 ksi |
|
Modulus of rigidity |
57 GPa |
8,300 ksi |
Equivalent Grades of JIS H 3300 C 7150 Copper Nickel Condenser Tube
| Standard | Designation |
|---|---|
|
JIS H 3300 (Japan) |
C7150 (C7150T for tube) |
|
ASTM B111 / ASME SB111 |
UNS C71500 |
|
EN 12451 (European) |
CuNi30Mn1Fe, CW354H |
|
ISO |
CuNi30Mn1Fe |
|
BS 2871 (former UK) |
CN107 |
|
DIN (former German) |
2.0882 |
|
IS (India) |
IS 8362, 70/30 |
Applications and Industrial Uses of JIS H 3300 C 7150 Copper Nickel Condenser Tube
- Marine Power Plant Main Condensers
- Thermal & Nuclear Power Station Cooling Systems
- Multi-Stage Flash (MSF) & MED Desalination Plants
- Offshore Oil & Gas Cooling & Heat Exchangers
- Petrochemical & Refinery Heavy-Duty Heat Exchangers
- Shipboard Auxiliary Coolers & Evaporators
- Retubing & Maintenance of Japanese-Built Equipment
- Low-Fin Extended Surface Heat Exchangers
Frequently Asked Questions
What is JIS H 3300 C7150?
C7150 is the 70/30 copper nickel grade in JIS H 3300, the Japanese standard for seamless copper and copper alloy pipes and tubes. It contains 29% to 33% nickel and 0.40% to 1.0% iron, with copper as the remainder.
What does the T in C7150T mean?
JIS H 3300 adds T to a grade to show the product is tube. C7150T is C7150 copper nickel tube.
What is the difference between C7150 and C7060?
C7150 is 70/30 copper nickel with about 30% nickel; C7060 is 90/10 with about 10% nickel. C7150 handles higher water velocities and more polluted seawater; C7060 costs less.
How are JIS H 3300 C7150 tubes tested?
Tubes are eddy current or hydrostatically tested, with flattening tests and dimensional checks.
Can C7150 tubes withstand high-velocity seawater flow?
Yes, C7150 copper nickel tubes offer good resistance to erosion and corrosion in high-velocity seawater applications when operated within recommended design limits.
What is the difference between C71500 and C7150T?
C71500 is the UNS designation used for 70/30 copper nickel alloy, while C7150T is the Japanese JIS H 3300 designation for the corresponding tube grade.
Are JIS H 3300 C7150 condenser tubes seamless?
Yes, JIS H 3300 C7150 condenser tubes are supplied as seamless tubes, subject to the applicable standard and purchase requirements.
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