Condensers: Optimal Corrosion & Thermal Performance
GNEE Material: CuZn20Al2As (UNS C68700)
GNEE Standard: EN 12449:2018 Compliant
GNEE Application: High-Pressure Steam Condensers
GNEE Properties: Seawater Corrosion Resistance | Anti-Biofouling | High Thermal Conductivity
GNEE Certification: SCC Tested per EN ISO 196 (Ammonia Vapor)
EN12449 Chemical Compositions
| EN Designation | UNS Number | Alloy Name | Cu (+Ag) | Pb | Fe | Sn | Zn | Ni | Al | Mn | P | As | Sb | Other Elements | Cu + Sum Listed Elements |
| CW004A | C11000 | Copper | ≥99.90 | 0.005 | – | – | – | – | – | – | – | – | – | – | ≥99.97 |
| CW008A | C12000 | Phosphorus deoxidized Cu | ≥99.90 | 0.005 | – | – | – | – | – | – | 0.004–0.012 | – | – | – | ≥99.97 |
| CW024A | C21000 | Gilding brass | 94.0–96.0 | 0.05 | 0.05 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW502L | C22000 | Commercial bronze | 89.0–91.0 | 0.05 | 0.05 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW506L | C23000 | Red brass | 84.0–86.0 | 0.05 | 0.05 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW507L | C24000 | Low brass | 78.5–81.5 | 0.05 | 0.05 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW508L | C26000 | Cartridge brass | 68.5–71.5 | 0.07 | 0.05 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW600L | C31400 | Leaded commercial bronze | 87.0–89.0 | 0.7–1.2 | 0.1 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW602N | C31600 | Leaded brass | 85.0–87.0 | 0.7–1.2 | 0.1 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW614N | C33000 | Leaded brass | 65.0–68.0 | 0.25–0.7 | 0.07 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW617N | C33500 | Low-leaded brass | 62.0–65.0 | 0.25–0.7 | 0.15 | – | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW702R | C68700 | Aluminum brass (CuZn20Al2) | 76.0–79.0 | 0.07 | 0.06 | – | Rem. | – | 1.8–2.5 | – | – | 0.02–0.10 | – | – | ≥99.5 |
| CW704R | C44300 | Admiralty brass | 70.0–73.0 | 0.07 | 0.06 | – | Rem. | – | – | – | – | 0.02–0.10 | 0.02–0.10 | – | ≥99.5 |
| CW706R | C44400 | Inhibited brass | 70.0–73.0 | 0.07 | 0.06 | – | Rem. | – | – | – | – | 0.02–0.10 | – | P: 0.02–0.10 | ≥99.5 |
| CW707R | C44500 | Inhibited brass | 70.0–73.0 | 0.07 | 0.06 | – | Rem. | – | – | – | 0.02–0.10 | – | – | – | ≥99.5 |
| CW712R | C46400 | Naval brass | 60.0–63.0 | 0.2 | 0.1 | 0.7–1.0 | Rem. | – | – | – | – | – | – | – | ≥99.5 |
| CW715N | C48600 | Leaded silicon brass | 87.0–90.0 | 0.7–1.4 | 0.2 | 1.3–2.2 | Rem. | – | – | – | – | – | – | Si: 0.5 max | ≥99.5 |
| CW721R | C70600 | CuNi10Fe | Rem. | 0.02 | 1.0–2.0 | – | – | 9.0–11.0 | – | 0.5–1.0 | – | – | – | Mn: 0.5–1.0 | ≥99.5 |
| CW725R | C71500 | CuNi30Fe | Rem. | 0.02 | 0.4–1.0 | – | – | 29.0–32.0 | – | 0.5–1.0 | – | – | – | Mn: 0.5–1.0 | ≥99.5 |
EN12449 Mechanical Properties
| EN Designation | UNS Number | Temper (TP) | Rₘ (MPa) min | Rp₀.₂ (MPa) min | A (%) min¹ | Hardness HBW max |
| CW004A | C11000 | O60 (Soft) | 200 | 40 | 43 | 45 |
| H110 (Hard) | 290 | 250 | 6 | 100 | ||
| CW008A | C12000 | O60 (Soft) | 200 | 40 | 43 | 45 |
| CW024A | C21000 | O60 (Soft) | 240 | 80 | 40 | 65 |
| CW502L | C22000 | O60 (Soft) | 270 | 80 | 42 | 65 |
| CW506L | C23000 | O60 (Soft) | 300 | 100 | 45 | 75 |
| CW507L | C24000 | O60 (Soft) | 330 | 110 | 45 | 80 |
| CW508L | C26000 | O60 (Soft) | 340 | 120 | 42 | 100 |
| H110 (Hard) | 500 | 420 | 10 | 150 | ||
| CW600L | C31400 | O50 (Light annealed) | 270 | 80 | 40 | 75 |
| CW602N | C31600 | O50 (Light annealed) | 270 | 80 | 40 | 75 |
| CW614N | C33000 | O50 (Light annealed) | 340 | 140 | 25 | 95 |
| CW617N | C33500 | O50 (Light annealed) | 340 | 140 | 25 | 95 |
| CW702R | C68700 | O50 (Light annealed) | 450 | 180 | 25 | 130 |
| H110 (Hard) | 650 | 550 | 8 | 210 | ||
| CW704R | C44300 | O60 (Soft) | 340 | 120 | 45 | 100 |
| CW706R | C44400 | O60 (Soft) | 340 | 120 | 45 | 100 |
| CW707R | C44500 | O60 (Soft) | 340 | 120 | 45 | 100 |
| CW712R | C46400 | O60 (Soft) | 380 | 170 | 35 | 115 |
| H110 (Hard) | 550 | 450 | 12 | 200 | ||
| CW715N | C48600 | O50 (Light annealed) | 340 | 140 | 25 | 95 |
| CW721R | C70600 | O50 (Light annealed) | 340 | 120 | 30 | 90 |
| CW725R | C71500 | O50 (Light annealed) | 370 | 120 | 30 | 100 |
EN12449 Supplementary Requirements (All Grades)
| Property | Test Method | Requirement |
| Hydrostatic Test | EN ISO 10896 | Min. pressure: 6 MPa (60 bar) for ≥10 sec; no leakage or deformation |
| Flare Test | EN ISO 8494 | Expand to 25% of OD without cracking (for tubes ≤100mm OD in soft temper) |
| Grain Size (Soft Tubes) | ASTM E112 / ISO 2624 | Min. grain size 0.020 mm (ASTM 6.0) for O60/O50 tempers |
| Stress Corrosion (SCC) | EN ISO 196 / ISO 6957 | Optional: Pass ammonia vapor test (7 days, 35% NH₄OH) for brass alloys |
| Dezincification Resistance² | ISO 6509 | For brass alloys: Max. depth 100 µm (Class B/C requirements vary per alloy) |
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
Square Meters Built
Enterprise Employees
Cooperating Partner
Years Experience
