Yuhong Group Co.,Ltd
| Supply Ability | 1500 tons per month |
| Delivery Time | 2-3 WEEKS |
| Packaging Details | Strong Iron Case Packing |
| Payment Terms | L/C, T/T |
| Standard | EN12449:1999 |
| Material | CuZn20Al2As |
| Test | Tensile test, Hardness tes, Eddy current test, hydraulic test, Peneumatic test |
| Application | Power Plants Condenser, heat exchangers |
| Brand Name | YUHONG |
| Model Number | EN12449 CuZn20Al2As |
| Certification | ABS, BV, DNV-GL , PED, TUV, LR, KR, NK, CCS |
| Place of Origin | CHINA |
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Product Specification
| Supply Ability | 1500 tons per month | Delivery Time | 2-3 WEEKS |
| Packaging Details | Strong Iron Case Packing | Payment Terms | L/C, T/T |
| Standard | EN12449:1999 | Material | CuZn20Al2As |
| Test | Tensile test, Hardness tes, Eddy current test, hydraulic test, Peneumatic test | Application | Power Plants Condenser, heat exchangers |
| Brand Name | YUHONG | Model Number | EN12449 CuZn20Al2As |
| Certification | ABS, BV, DNV-GL , PED, TUV, LR, KR, NK, CCS | Place of Origin | CHINA |
| High Light | ASME SB111 Seamless Tube ，C71500 Seamless Tube ，C68700 Seamless Tube | ||
EN12449 CuZn20Al2As C68700 Brass Seamless Tube for Power Plants Condenser
Plant Condensers: Optimal Corrosion & Thermal Performance
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) |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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