BFe10-1-1 Corrosion Resistance Structural PaktongTube For Sea Water Heat Exchanger
1. Description
BFe10-1-1 is a kind of structural iron white copper with less nickel. The addition of Fe and Mn in BFe10-1-1 alloy greatly improves the corrosion resistance of this material.
In clean seawater, the flow rate of the alloy can reach 2.2-2.5% / s. The highest acceptable speed in micro salt liquid is 4 m / s. The alloy can avoid stress corrosion cracking and nickel removal at high temperature. Therefore, the alloy has good corrosion resistance to clean or polluted seawater and river water. So, the tube is widely used in seawater heat exchangers in power plants, desalination plants, petrochemical plants, etc.
The company's brass/copper tube grades mainly include BFe10-1-1, HSn70-1, HSn70-1B, HSn70-1AB, HAl77-2, H68A copper tube, fin tube and U-tube. The products are produced in strict accordance with the standard, and the finished products can be tested by the third party according to the customer's requirements. These copper tubes are mainly used in power plants, desalination, petrochemical, mechanical ships and automotive heat exchangers. We have rich production experience, professional technology, excellent equipment, superior quality, reasonable price, high-quality service, so that our products sell well all over the world, well received by customers.
2. Chemical Composition
| Grade | Chemical Composition | Impurity composition /%, ≤ |
| Cu | Sn | As | B | Ni | Mn | Zn | Fe | Pb | Al | S |
| HSn70-1B | 69.0～71.0 | 0.8～1.3 | 0.03～0.06 | 0.015～0.02 | - | - | allowance | 0.1 | 0.05 | | | ≤0.3 |
| HSn70-1AB | 69.0～71.0 | 0.8～1.3 | 0.03～0.06 | 0.015～0.02 | 0.05～1.00 | 0.02～2.0 | allowance | 0.1 | 0.05 | | | ≤0.3 |
| HAI77-2 | 76～79 | | 0.02～0.06 | | 0.5 | | allowance | 0.06 | 0.07 | 1.8～2.5 | | —— |
| T2 | 99.9 | | 0.002 | | | | | 0.005 | 0.005 | | 0.005 | —— |
| BFe10-1-1 | allowance | | | | 9～11 | 0.5～1.0 | 0.3 | 1.0～1.5 | 0.02 | | 0.1 | ≤0.7 |
| BFe30-1-1 | allowance | | | | 29～32 | 0.5～1.2 | 0.3 | 0.5～1.0 | 0.02 | | 0.01 | ≤0.7 |
3. Physical Properties
| Grade | Supply Status | Specifications/mm | Standard |
| OD | Wall Thickness | Length |
| BFe10-1-1 | soft(M) | 6～30 | 0.5～2.5 | ≤6000 | GB/T8890-2007 |
| Semi hard(Y2)Hard(Y) | 6～30 | 0.5～2.5 | ≤12000 | GB/T8890-2007 |
| BFe30-1-1 | soft(M)Semi hard(Y2) | 6～30 | 0.5～2 | ≤12000 | GB/T8890-2007 |
| HAl77-2;HSn70-1; | soft(M)Semi hard(Y2) | 6～30 | 0.5～2 | ≤12000 | GB/T8890-2007 |
| HSn70-1B; |
| HSn70-1AB; |
| H68A;HSn70A; |
| BFe10-1-1 | Semi hard(Y2) | 9～12(20～35) | 0.75～1.5 | ≤2500 | GB/T8890-2007 |
| LF21Clad pipe |
4. Details Picture
|
|
BFe10-1-1 Corrosion Resistance Structural Paktong Tube For Sea Water Heat Exchanger Images
|
