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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

Brand Name YUHONG
Model Number ASTM B111/ASME SB111 C68700 U-TUBE
Certification ABS, GL, DNV, NK, PED, ISO 9001
Place of Origin China
Minimum Order Quantity 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
Detailed Product 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 GradeASTM B111 C68700EN 12451 CuZn20Al2AsDIN 17660/1785 CuZn20Al2BS 2871 CZ 110JIS H3300 C6870GB/T 8890 HAL 77-2
Cu76.0-79.076.0-79.076.0-79.076.0-78.076.0-79.076.0-79.0
Al1.8-2.51.8-2.31.8-2.31.8-2.31.8-2.51.8-2.5
Fe0.06 max0.07 max0.07 max0.06 max0.06 max0.06 max
Pb0.07 max0.05 max0.07 max0.07 max0.07 max0.03 max
ZnBal.Bal.Bal.Bal.Bal.Bal.
As0.02-0.100.02-0.060.02-0.0350.02-0.060.02-0.060.03-0.06
P-0.01 max0.01 max--0.02 max
Mn-0.1 max0.1 max---
Total Impurities-0.3 max0.1 max0.3 max-0.3 max
ConditionO61R390F39MOM
-R340F34TA-Y2
---O--
Yield Strength N/mm2125 min150 min150-230---
-120 min120-180---
------
Tensile trength N/mm2345 min.390 min--373 min370min
-340 min---350 min
------
Elongation (%)-45 min45 min-40 min40 min
-55 min55 min--50 min
------
Hardness Hv5---150 min--
---85-110--
---75 max--

 

 

Chemical Composition

 

 Elements
Cu(1,2)PbZnFeAlAs

 

(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.5% min.

 

Min (%)76.0   1.80.02
Max (%)79.00.07Rem0.062.50.06

 

 

Mechanical Properties

 

FormTemperTemper CodeTensile Strength
(ksi)
YS-0.5% Ext
(ksi)
Elongation
(%)
Rockwell F scale

 

*Measured at room temperature, 68°F (20°C).

 

TubeNominal Grain Size 0.025 mmOS02560 Typ27 Typ55 Typ77 Typ

 

 

Physical Properties

 

Melting Point - Liquidus°F1780
Melting Point - Solidus°F1710
Densitylb/cu in. at 68°F0.301
Specific Gravity8.33
Electrical Conductivity% IACS at 68°F23
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F58
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F)10.3
Specific Heat CapacityBtu/ lb /°F at 68°F0.09

Modulus of Elasticity in Tensionksi

16000

Modulus of Rigidityksi

6000

 

 

Fabrication Properties

 

TechniqueSuitability
SolderingFair
BrazingGood
Oxyacetylene WeldingFair
Gas Shielded Arc WeldingFair
Coated Metal Arc WeldingNot Recommended
Spot WeldGood
Seam WeldFair
Butt WeldGood
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedFair
Machinability Rating30

 

 

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.

 

 

Product Tags: astm b111 u bend tube   c68700 u bend tube   b111m u bend tube  
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