ASTM B111 C44300 copper tubes complies with ISO standards m-2004 and B171m-2004, as well as ASTM B111/B111M-2009 (American Standard Copper and Copper Alloy Seamless Condenser Tubes and Casings). C44300 tin brass is a high copper alloy that usually has a high copper content and contains a certain amount of tin and other alloying elements such as zinc and trace amounts of arsenic. The addition of these elements gives C44300 tin brass unique properties.
Mechanical properties: It has good mechanical properties, including high tensile strength and elongation. This makes C44300 tube perform well when subjected to mechanical stress such as pressure and stretching.
Corrosion resistance: It has excellent corrosion resistance, especially in environments with corrosive liquids. The addition of trace arsenic can inhibit dezincification corrosion and further improve the corrosion resistance of the alloy. Recent studies have also shown that the addition of trace elements such as boron and nickel can further enhance its corrosion resistance.
Hot and cold processing performance: C44300 tin brass has excellent cold processing performance and is easy to process into various shapes and sizes. At the same time, it also has certain hot processing performance and can be hot pressed, hot rolled and other processes at a certain temperature.
ASTM B111 C44300 Copper Tubing Chemical Composition
| UNS NO. | ASTM B111 C44300 CHEMICAL COMPOSITION % | |||||
|---|---|---|---|---|---|---|
| CU | TI | FE | ZI | AS | MN | |
| C44300 | 70.0-73.0 | 0.9-1.2 | 0.06 MAX | REM | 0.02-0.06 | --- |
ASTM B111 C44300 Copper Nickel Tube Tensile Requirements
| UNS NO. |
Temper Designation |
Tensile Strength min, ksi |
Yield Strength min, ksi |
|
|---|---|---|---|---|
| Code | Name | |||
|
C44300 |
O61 | Annealed | 45 | 15 |
ASTM B111 C44300 Copper Nickel Tube Application
Marine engineering field
Power industry
Food processing field
Construction and decoration field
What are the differences in application areas between ASTM B111 C44300 and C68700?
ASTM B111 C44300 (Navy Brass) copper nickel tube is suitable for various seawater cooled condensers, evaporators, and heat exchangers (marine, power plant, industrial refrigeration), especially for low to medium flow rate seawater, relatively clean water quality, or environments with less suspended solids. At the same time, due to its better resistance to ammonia corrosion, thermal conductivity, and ductility, C44300 copper nickel tubes perform better than C68700 in work environments containing trace amounts of ammonia, requiring good thermal conductivity efficiency, or requiring more expansion and bending tube processing.
ASTM B111 C68700 (aluminum brass) copper nickel tube is suitable for marine main condensers, high-speed pump coolers, or estuarine power plants in high flow rate, high turbulence, high sediment content, or high suspended solids seawater working environments. At the same time, in situations where ammonia is not present, higher requirements are placed on the strength and hardness of the pipe material, and general requirements are placed on thermal conductivity efficiency, C68700 is more suitable than C44300. Under extremely harsh water quality conditions, the erosion resistance life of C68700 is usually better than that of C44300.
Summary:
ASTM B111 C44300 belongs to brass, specifically tin brass, more commonly known as admiralty brass. The core advantage of C44300 copper nickel tubes lies in its good water corrosion resistance and high cost performance. It is a classic choice between pure copper and higher-grade alloys such as aluminum brass C68700 and copper-nickel alloy C71500. However, it should be noted that ASTM B111 C44300 copper nickel tube should be avoided in seawater with high flow rate and high sand content, any environment where ammonia may exist, and polluted seawater with high sulfide content. Because C44300 is not as resistant to erosion corrosion as aluminum brass (C68700) and copper-nickel alloy (C71500/C70600) in seawater with high flow rate and high sand content, its surface protective film is more easily damaged. At the same time, it is difficult to maintain good strength in a working environment containing ammonia or amines, such as the air cooling area of a power plant, and stress corrosion cracking is very likely to occur.
Copper products that GNEE can provide
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High quality 99.9% pure copper pipe / straight copper tube / copper alloy pipe |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Round,Square,Rectangular,etc. |
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Specifications |
Round:wall thickness:0.2mm~120mm,outside diameter:2mm~910mm
Square:wall thickness:0.2mm~120mm,size:2mm*2mm~1016mm*1016mm Rectangularwall thickness:0.2mm~120mm,size:2mm*4mm~1016mm*1219mm |
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Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
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Application |
Copper pipe is the first choice of residential housing water pipes, heating, cooling pipes |
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Straight copper rod/copper round bar |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Round,Square,Rectangular,etc. |
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Specifications |
Diameter:3~200mm |
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Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
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Application |
A copper rod is a type of colored metal processing bar stock with high electrical conductivity. It is mainly divided into brass |
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Size |
Width: 10mm to 2000mm, |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
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Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
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Package |
Plastic film with Wooden case or wooden pallet |
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Delivery time |
Prompt delivery or upon your order quantity. |
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Quality Control |
Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable. |
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Application |
widely used inair conditioners,refrigerators,electric,solar water heater, polished pipe an be used in decorative,such as stair |
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Shape |
Round, Square, Oval, can be customized |
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Item |
Copper Wire |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Round |
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Specifications |
As required. |
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Length |
As required. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Application |
Copper wire, as a conductive material, is widely used in power transmission and electronic devices. Transformers, inductors, |
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Copper CNC machined parts
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Custom CNC Machining Parts of Most Materials
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Quotation
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According to your drawing(size, material, thickness, processing content, and required technology, etc)
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Materials Avaiable
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Brass,Stainless Steel,Q235&Q345 steel, Zinc-plate Sheet,Stainless Steel, Aluminum,Copper, etc.
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Surface Treatment
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Zinc Plating, chrome plate, powder coating, anodizing, wire drawing, silk-screen printing, etc
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Processing
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Laser Cutting, Precision Stamping, CNC Bending, CNC Milling, CNC Turning, Threading, Riveting, Drilling, CNC Punching,Die Casting, Laser Welding, etc.
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Testing Equipment
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CMM/Tool microscope/multi-joint arm/Automatic height gauge/Manual height gauge/Dial gauge/Roughness measurement
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Drawing Formats
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PRO/E, Auto CAD, Solid Works , UG, CAD / CAM / CAE, PDF
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Our Advantages
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1.) 24 hours online service & Quickly Quote/Delivery.
2.) 100% QC quality inspection before delivery, and can provide quality inspection form.
3.) 18+ years of experience in the CNC machining area and have a senior design team to offer perfect modification suggestions. |
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Tolerance丨Surface Roughness
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Generally +/-0.1-0.2mm
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Sample service
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Avaliable before bulk order. Samples charge according your design, The sample fee can be used as the payment for mass goods.
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About Us
Founded in 2008, we specialize in exporting premium copper products. Our manufacturing leverages continuous casting lines and precision drawing machines. Rigorous quality control, including eddy current testing and spectrometer analysis, guarantees the superior performance of our copper tubes and coils for global applications.
If you need any help, please contact us immediately!
Email address：sales@gneemetal.com
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