1. Product Overview
MIL-T-16420K(SH) Copper Nickel Alloy Pipes are engineered for extreme environments, combining superior corrosion resistance with high mechanical strength. Designed to meet stringent and industrial standards, these pipes are ideal for marine, offshore, and chemical processing applications. Available in seamless and welded variants, they ensure reliability in high-pressure and high-temperature systems.
2. Key Advantages
- Military-Grade Compliance: Strict adherence to MIL-T-16420K(SH) ensures unmatched performance in naval and defense projects.
- Superior Corrosion Resistance: CuNi alloys (90/10 and 70/30) resist pitting, crevice corrosion, and biofouling in seawater.
- High-Temperature Stability: Maintains structural integrity from -50°C to 400°C.
- Custom Sizing: Tailored dimensions (OD: 6mm-1200mm, WT: 0.5mm-50mm) to meet project-specific needs.
- Certified Quality: ISO 9001, DNV, ABS, and Lloyd's Register certifications guarantee global acceptance.
3. Applications
- Marine Engineering: Shipbuilding, ballast systems, condenser tubes, and desalination plants.
- Oil & Gas: Offshore platforms, subsea pipelines, and LNG processing units.
- Chemical Processing: Acid-resistant piping, heat exchangers, and evaporators.
- Power Generation: Cooling systems, boiler tubes, and nuclear reactors.
4. Technical Specifications
Material Composition
- CuNi 90/10: 90% Copper, 10% Nickel, <1% Iron/Manganese.
- CuNi 70/30: 70% Copper, 30% Nickel, enhanced iron content for higher strength.
Mechanical Properties
| Property |
CuNi 90/10 |
CuNi 70/30 |
| Tensile Strength |
≥370 MPa |
≥450 MPa |
| Yield Strength |
≥170 MPa |
≥210 MPa |
| Elongation |
≥30% |
≥25% |
| Hardness (HV) |
90-120 |
110-140 |
Chemical Resistance
- Seawater: Excellent resistance to saltwater corrosion.
- Chlorides/Sulfides: Ideal for sour gas and acidic environments.
- Biofouling: Inhibits marine organism growth.
5. Quality Assurance
- Third-Party Testing: PMI (Positive Material Identification), hydrostatic testing, and ultrasonic inspection.
- Traceability: Mill test certificates with heat numbers for full material history.
- Surface Protection: Anti-rust oil coating and plastic end caps for safe transit.
6. Packaging & Logistics
- Export-Standard Packaging: Wooden crates with waterproof film and shock-absorbent padding.
- Global Shipping: FOB, CIF, or EXW terms; support for L/C, T/T, and Western Union payments.
Copper Alloy Conde Tube,Heat Exchanger Tube
Applicatian:
Engine cooler, power plant condenser, marine heat exchanger, compressor cooler, petrochemical refinery cooler,
motor cooler, seawater desalination evaporator, air conditioning cooling system and other fields.
Good characteristics:
Thermal conductivity, good conductivity, wear resistance, plasticity, good cold bending property,
easy to welding and machining, the seawafer corrosion resistance is strong.
Grade and control table:
| Material |
GB |
ASTM |
BS |
DIN |
Eu |
JIS |
| Copper Nickel |
BFelO-1-1 |
C70600 |
CN 102 |
CuNilOFelMn |
CuNilOFelMn |
|
| C70610 |
CN 102 |
CuNilOFelMn |
CuNilOFelMn |
|
| BFe3O-I-I |
C71500 |
|
CuNi30Fe |
|
C7150 |
| |
CN107 |
CuNi30Mnl Fe |
CuNi30MnlFe |
|
| C71640 |
CN 106 |
CuNi30 |
CuNi30 |
|
| Fe2Mn2 |
Fe2Mn2 |
| aluminum brass |
HA177-2 |
C68700 |
CZ110 |
CuZn20Al2 |
CuZn20Al2As |
C6870 |
| Admiraltybrass |
HSn70-I |
C41100 |
|
|
|
|
| C44300 |
CZ111 |
CuZn28Snl |
CuZn28Snl As |
C4430 |
| C44500 |
|
|
|
|
| Copper |
T2 |
Cl 1000 |
C102 |
E-Cu58 |
Cu-ETP |
Cl 100 |
| Tpl |
Cl 2000 |
|
SW-Cu |
Cu-DLP |
C1201 |
| Tp2 |
Cl 2200 |
C106 |
|
Cu-DHP |
Cl 220 |
Supply material according to customer is designatal standard Such as GB GB/T8890,American Standard- 111,American Standard ASTMB111,Britain standard BS2781, European standard EN12451,DIN 1785,JIS and other special standard and so on.
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Copper alloy tubes for petroleum industry
Applicatian:
Oil pump,oil pump,oil transmission pipeline, engine oil, oil, oil field gas station.
Good characteristics:
High hardness,certain intensity, compression strength,corrosion resistance,strong wear resistance.
Grade and control table:
| Material |
GB |
ASTM |
BS |
DIN |
EU |
JIS |
| Tinbrass |
HSn62-1 |
C46200 |
CZ112 |
|
|
C4620 |
| C46420 |
|
|
|
C4642 |
| Aluminumbrass |
HAI66-6-3-2 |
C67000 |
|
|
|
|
| Admiraltybrass |
HSn70-1 |
C44300 |
CZ111 |
CuZn28Sn1 |
CuZn28Snl As |
C4430 |
Supply material according to customer is designatal standard Such as GB GB/T8890
American Standard- 111,American Standard ASTMB111,Britain standard BS2781,
European standard EN 12451,DIN1785, JIS and other special standard and so on.
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Copper alloy piping products
Applicatian:
Shipbuilding, marine engineering, marine cage culture,construction and other fields.
Good characteristics:
machinability, corrosion resistanle,adapt to contact with sea water environment; good mechanical properties, bending,
compression strength, excellent electroplate apply for varions demand in architectural engineering field,
adapt to the various needs in the field of construction engineering Ling.
Grade and control table:
| Material |
GB |
ASTM |
BS |
DIN |
Eu |
JIS |
| Brasstube |
H96 |
C21000 |
CZ125 |
CuZn5 |
CuZn5 |
C2100 |
| H90 |
C22000 |
CZ101 |
CuZnIO |
CuZnIO |
C2200 |
| H85 |
C23000 |
CZ102 |
CuZnl5 |
CuZnl5 |
C2300 |
| H80 |
C24000 |
CZ103 |
CuZn20 |
CuZn20 |
C2400 |
| Aluminumbronze |
Qal5 |
C60600 |
CA101 |
CuAl5 |
CuAI5 |
|
|
| C60800 |
|
|
|
|
| Qal7 |
C61000 |
CAI 02 |
CuAl8 |
CuAl8 |
|
| Cupronickel |
B19 |
C71000 |
CN104 |
CuNi20Fe |
|
C7100 |
| C70600 |
|
CuNilOFe |
|
C7060 |
| BZn15-20 |
C75400 |
NS 105 |
CuNil8Zn20 |
CuNil8Zn20 |
C7521 |
| C75700 |
|
CuNil2Zn24 |
CuNil2Zn24 |
|
Supply material according to customer is designatal standard Such as GB GB/T8890,American
Standard- 111,American Standard ASTMB111,Britain standard BS2781,European standard
EN12451,DIN 1785,JIS and other special standard and so on.
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Copper and copper alloy tube
Applicatian:
Mainly used in precision instrument oil circuit, all kinds of locomotive pipeline, electronic products and other fields.
Good characteristics:
With long length, good toughness, convenient transportation and so on.
Grade and control table:
| Material |
GB |
ASTM |
BS |
DIN |
Eu |
JIS |
| Brasstube |
H70 |
C26000 |
CZ 106 |
CuZn30 |
CuZn30 |
C2600 |
| H70A |
C26130 |
CZ 126 |
|
CuZn3OAs |
|
| H68 |
C26200 |
|
CuZn33 |
CuZn33 |
|
| C26800 |
|
|
|
C2680 |
| H65 |
C27000 |
CZ 107 |
CuZn36 |
CuZn36 |
C2700 |
| H63 |
C27200 |
CZ 108 |
CuZn37 |
CuZn37 |
C2720 |
| C27400 |
|
|
|
|
| H62 |
C28000 |
CZ 109 |
CuZn40 |
CuZn40 |
C2800 |
| Aluminum brass |
HA177-2 |
C68700 |
CA 110 |
CuZn20Al2 |
CuZn20Al2As |
C6870 |
| Tinbronzetube |
Qsn6.5-0.1 |
C51900 |
|
CuSn6 |
|
|
|
| CuSn8 |
|
|
|
|
|
| Copper Nickel |
BFelO-1-1 |
C70600 |
CN 102 |
CuNilOFelMn |
CuNilOFelMn |
|
|
| C70610 |
CN 102 |
CuNilOFelMn |
CuNilOFelMn |
|
| BFe30-I-1 |
C71500 |
|
CuNi30Fe |
|
C7150 |
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