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ASME SB111 C71500 Copper Nickle Alloy Seamless Tube For Refinery Heat Exchangers

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ASME SB111 C71500 Copper Nickle Alloy Seamless Tube For Refinery Heat Exchangers

Brand Name : Yuhong

Model Number : ASME SB111 C71500 Copper Nickle Alloy Seamless Tube

Certification : ABS, BV, DNV, CCS, LR

Place of Origin : China

MOQ : 200~500 KGS

Price : Negotiable

Payment Terms : TT, LC

Supply Ability : According to Clients' requirements

Delivery Time : 35-60 Days (Depend on Customer's Requirements)

Packaging Details : Ply-wooden Cases with Plastic Caps on Tube's Both Ends

Product Name : ASME SB111 C71500 Seamless Tube

Tube Specification : ASME SB111

Tube material : C71500

Tube's OD and WT : Accorfing to Customer

Tube's End : Plain end

Tube's length : Depend on Customer

Application : Condensers and Heat Exchangers;Power Plant Condensers; Cooling Systems; Heat Transfer Equipment

General Test or Inspection : ET, HT, PMI, Flattening Test...(acc to customer)

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ASME SB111 C71500 Copper Nickle Alloy Seamless Tube For Refinery Heat Exchangers

ASTM B111 C71500 refers to a standard specification for copper-nickel (Cu-Ni) alloy seamless tubes, specifically made from C71500 alloy (70/30 copper-nickel). Here’s a detailed breakdown:

Key Features of ASTM B111 C71500 Seamless Tube:

1. Material Composition (C71500 Alloy):

(1) Chemical Composition (ASTM B111 C71500)

Element Composition (% Weight, Max unless specified)
Copper (Cu) Remainder (≈65-70%)
Nickel (Ni) 29.0 – 33.0%
Iron (Fe) 0.40 – 1.0%
Manganese (Mn) 0.50 – 1.5%
Lead (Pb) 0.05% max
Zinc (Zn) 1.0% max
Carbon (C) 0.05% max
Phosphorus (P) 0.02% max
Sulfur (S) 0.02% max
Other Impurities 0.5% max (total)

Notes:

The balance is primarily copper (~65-70%).

Iron (Fe) and manganese (Mn) enhance strength and corrosion resistance.

Low lead (Pb) ensures good weldability and fabrication.

(2) Mechanical Properties (ASTM B111 C71500 Seamless Tube)

Property Annealed (O60) Drawn (H55, H80, etc.)
Tensile Strength (min) 380 MPa (55 ksi) 485–620 MPa (70–90 ksi)
Yield Strength (0.2% offset, min) 170 MPa (25 ksi) 415–550 MPa (60–80 ksi)
Elongation (min, % in 50mm) 30% 10–20% (varies by temper)
Hardness (Rockwell B, max) 65 HRB 75–90 HRB
Density 8.94 g/cm³ Same
Melting Range 1170–1240°C (2140–2260°F) Same

Notes:

Annealed (O60): Softer, more ductile, used for forming/welding.

Drawn (H55, H80, etc.): Higher strength, used for pressure applications.

Typical Tempers:

H55: Half-hard

H80: Hard-drawn (higher strength, lower elongation).

(3) Other Key Properties

  • Corrosion Resistance: Excellent in seawater, brackish water, and marine atmospheres
  • Thermal Conductivity: ~29 W/m·K (lower than pure copper but good for heat exchangers).
  • Electrical Conductivity: ~5% IACS (low, as expected for Cu-Ni alloys).

(4) ASTM B111 Testing Requirements

  • Hydrostatic Test or Eddy Current Test (non-destructive)
  • Flattening Test, Flaring Test, or Reverse Bend Test (for ductility verification).

2. Properties of ASTM B111 C71500 seamless tubes:

  • Excellent corrosion resistance, especially in seawater and marine environments.
  • Good erosion and biofouling resistance
  • High thermal conductivity and ductility.
  • Resistant to stress corrosion cracking.

3. Manufacturing Standard (ASTM B111):

  • Covers seamless copper-nickel tubes for condensers, heat exchangers, and general engineering applications.
  • Includes requirements for dimensions, mechanical properties, and testing (hydrostatic, eddy current, etc.).

4. Equivalent Standards:

UNS: C71500 (Unified Numbering System)

EN: CuNi30 (European Norm)

Other: DIN 2.0882, ISO CN 107

5. Why Choose C71500?

Superior to 90/10 Cu-Ni (C70600) in harsh saline conditions.

More cost-effective than titanium or super duplex stainless steels for many marine applications.


Applications of ASTM B111 C71500 (70/30 Copper-Nickel) Seamless Tubes:

ASTM B111 C71500 seamless tubes are widely used in industries requiring excellent corrosion resistance, high strength, and thermal conductivity, particularly in marine, power generation, and chemical processing environments.

1. Marine & Offshore Applications

Seawater Cooling & Condenser Systems (ships, offshore platforms)

Desalination Plants (heat exchanger and brine heater tubes)

Shipbuilding & Repair (piping systems, heat exchangers)

Ballast & Bilge Systems (resistant to biofouling and erosion)

Why C71500?
✔ Superior resistance to saltwater corrosion and biofouling compared to stainless steel.
✔ Good erosion resistance in high-flow seawater conditions.

2. Power Generation & HVAC

Power Plant Condensers (steam surface condensers, feedwater heaters)

Nuclear Plant Cooling Systems (compatible with high-purity water)

HVAC & Refrigeration Systems (heat exchangers, chiller tubes)

Why C71500?
✔ High thermal conductivity for efficient heat transfer.
✔ Resistant to ammonia, steam, and acidic condensates.

3. Oil & Gas Industry

Cooling Systems (refinery heat exchangers, condensers)

Offshore Platform Piping (seawater injection, firewater systems)

LNG & Petrochemical Processing (corrosion-resistant tubing)

Why C71500?
✔ Handles sour gas (H₂S) environments better than carbon steel.
✔ Resistant to stress corrosion cracking (SCC).

4. Chemical & Process Industries

Chemical Processing Equipment (acid and alkali-resistant tubing)

Pharmaceutical & Food Processing (non-toxic, FDA-compliant)

Distillation & Evaporation Systems

Why C71500?
✔ Excellent resistance to organic acids, alkalis, and saline solutions.
✔ Low corrosion rates in harsh chemical environments.

5. Industrial & General Engineering

Heat Exchangers & Boilers

Hydraulic & Instrumentation Tubing

Water Treatment Plants (cooling loops, brine handling)

ASME SB111 C71500 Copper Nickle Alloy Seamless Tube For Refinery Heat Exchangers


Product Tags:

Copper Nickle Alloy Seamless Tube

      

C71500 Seamless Tube

      

ASME SB111 Seamless Tube

      
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