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EN12449 CuZn20Al2As C68700 Brass Seamless Tube for Power Plants Condenser

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EN12449 CuZn20Al2As C68700 Brass Seamless Tube for Power Plants Condenser

Brand Name : YUHONG

Model Number : EN12449 CuZn20Al2As

Certification : ABS, BV, DNV-GL , PED, TUV, LR, KR, NK, CCS

Place of Origin : CHINA

MOQ : 1000KGS

Price : Negotiable

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

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EN12449 CuZn20Al2As C68700 Brass Seamless Tube for Power Plants Condenser

Plant Condensers: Optimal Corrosion & Thermal Performance

  • YUHONG ​​Material:​​ CuZn20Al2As (UNS C68700)
  • YUHONG ​​​​Standard:​​ EN 12449:2018 Compliant
  • ​​YUHONG ​​Application:​​ High-Pressure Steam Condensers
  • ​​YUHONG ​​Properties:​​ Seawater Corrosion Resistance | Anti-Biofouling | High Thermal Conductivity
  • ​​YUHONG ​​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)

EN12449 CuZn20Al2As C68700 Brass Seamless Tube for Power Plants Condenser


Product Tags:

ASME SB111 Seamless Tube

      

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