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B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
Specifications
Brand Name :
YUHONG
Model Number :
ASTM B111/ASME SB111 C68700 U-TUBE
Certification :
ABS, GL, DNV, NK, PED, ISO 9001
Place of Origin :
China
MOQ :
200KGS
Price :
Negotiable
Payment Terms :
T/T, L/C AT SIGHT
Supply Ability :
100 tons per month
Delivery Time :
Depends on order quantity
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Standard :
ASTM B111, ASME B111
Material :
C68700 (Aluminum brass)
Technique :
Cold Drawn
Temper Designation :
O61 Annealed
Shape :
U-Shape
Application :
Heat exchangers, condensers, marine systems, and HVAC equipment
Description

B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn

Overview

B111 C68700 Aluminum Brass Seamless Tube refers to a specific grade of seamless tube made from C68700 Aluminum Brass that meets the ASTM B111 standard. The ASTM B111 standard outlines the requirements for Seamless Copper and Copper-Alloy Condenser and Heat Exchange Tubes, including C68700 (Aluminum Brass), which is commonly used for heat exchangers, condensers, and similar applications where high corrosion resistance and thermal conductivity are crucial.

B111 C68700 Aluminum Brass Seamless Tube is a high-performance material that combines the corrosion resistance of aluminum brass with the mechanical benefits of a seamless construction. Adhering to ASTM B111 specifications, it is ideal for applications that require reliable, durable, and corrosion-resistant tubes, such as heat exchangers, condensers, marine systems, and HVAC equipment. The seamless nature of these tubes provides superior strength, resistance to internal pressure, and smoother internal surfaces, making them particularly suited for high-stress and high-performance environments.

ASTM B111/B111M Standard Specification for Copper and Copper-Alloy Seamless Tubes

Standard Grade ASTM B111 C68700 EN 12451 CuZn20Al2As DIN 17660/1785 CuZn20Al2 BS 2871 CZ 110 JIS H3300 C6870 GB/T 8890 HAL 77-2
Cu 76.0-79.0 76.0-79.0 76.0-79.0 76.0-78.0 76.0-79.0 76.0-79.0
Al 1.8-2.5 1.8-2.3 1.8-2.3 1.8-2.3 1.8-2.5 1.8-2.5
Fe 0.06 max 0.07 max 0.07 max 0.06 max 0.06 max 0.06 max
Pb 0.07 max 0.05 max 0.07 max 0.07 max 0.07 max 0.03 max
Zn Bal. Bal. Bal. Bal. Bal. Bal.
As 0.02-0.10 0.02-0.06 0.02-0.035 0.02-0.06 0.02-0.06 0.03-0.06
P - 0.01 max 0.01 max - - 0.02 max
Mn - 0.1 max 0.1 max - - -
Total Impurities - 0.3 max 0.1 max 0.3 max - 0.3 max
Condition O61 R390 F39 M O M
- R340 F34 TA - Y2
- - - O - -
Yield Strength N/mm2 125 min 150 min 150-230 - - -
- 120 min 120-180 - - -
- - - - - -
Tensile trength N/mm2 345 min. 390 min - - 373 min 370min
- 340 min - - - 350 min
- - - - - -
Elongation (%) - 45 min 45 min - 40 min 40 min
- 55 min 55 min - - 50 min
- - - - - -
Hardness Hv5 - - - 150 min - -
- - - 85-110 - -
- - - 75 max - -

Chemical Composition
Elements
Cu(1,2) Pb Zn Fe Al As

(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.5% min.
Min (%) 76.0 1.8 0.02
Max (%) 79.0 0.07 Rem 0.06 2.5 0.06

Mechanical Properties
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Rockwell F scale

*Measured at room temperature, 68°F (20°C).
Tube Nominal Grain Size 0.025 mm OS025 60 Typ 27 Typ 55 Typ 77 Typ

Physical Properties
Melting Point - Liquidus°F 1780
Melting Point - Solidus°F 1710
Densitylb/cu in. at 68°F 0.301
Specific Gravity 8.33
Electrical Conductivity% IACS at 68°F 23
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 58
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 10.3
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09

Modulus of Elasticity in Tensionksi

16000

Modulus of Rigidityksi

 6000

Fabrication Properties
Technique Suitability
Soldering Fair
Brazing Good
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Not Recommended
Spot Weld Good
Seam Weld Fair
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Fair
Machinability Rating 30

Applications:

  • Aluminum Brass Tube for condenser and heat-exchangers.
  • Water Evaporators.
  • Boiler Blowdown Heat Exchangers
  • Air coolers.
  • Gland Steam Condensers.
  • Steam Ejector.
  • Turbine Oil Coolers.
  • Fuel Oil Heaters.
  • Compressed Air Inter and After Coolers.
  • Ferrules, Oil Well Pump Liner, and Distiller etc.

B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn

Product tags

titanium clad tube sheet

,

u-bent seamless stainless steel tube

,

copper alloy seamless tubes
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B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM B111/ASME SB111 C68700 U-TUBE
Certification :
ABS, GL, DNV, NK, PED, ISO 9001
Place of Origin :
China
MOQ :
200KGS
Price :
Negotiable
Contact Supplier
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn
B111 C68700 Aluminium Brass o61 Annealed U Bend Tube Copper Alloy Cold Drawn

Yuhong Group Co.,Ltd

Verified Supplier
13 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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