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| Categories | Seamless Copper Tube |
|---|---|
| Brand Name: | FRANK STEEL |
| Model Number: | HSn70A |
| Certification: | DNV / LR / BV |
| Place of Origin: | P.R.CHINA |
| MOQ: | 1 Tons or negotiation |
| Price: | Negotiation |
| Payment Terms: | T/T |
| Supply Ability: | 1000 Ton per 30 days |
| Delivery Time: | about 30 work days |
| Packaging Details: | Simple packing in hexagon shape per bunch or plywooden boxes |
| Steel grade: | HSn70A |
| Application: | General Corrosion industries |
| Type: | Seamless,round |
| Standard: | GB/T8890-2007, GB5232-85 |
| Thickness: | 0.5～2.5mm |
| Outer diameter: | 6～35mm |
| Length: | Negotiation ≤12M |
| Package: | Plywood wooden box for export |
| tensile Strength: | ≥370 (MPa) |
| Alloy: | Cu 67.0~70.0 Fe≤0.10 |
| Company Info. |
| SUZHOU FRANK STEEL CO.,LTD. |
| View Contact Details |
| Product List |
HSn70A Brass Tube With Highest Malleability, Stable General Corrosion
Performance For Construction And Industrial Product
1. Description
Trace arsenic can inhibit dezincification corrosion and further
improve the corrosion resistance of the alloy. HSn70-1 has good
mechanical properties, HSn70-1 tin brass is used to make heat
exchangers and pipes contacting corrosive liquids, especially
widely used in inland thermal power plants to make high-strength
and corrosion-resistant condenser tubes of heat exchangers. In
recent years, it has been proved that the corrosion resistance of
HSn70-1 alloy can be improved by adding trace elements such as
boron and nickel. HSn70-1 has the tendency of stress corrosion
cracking, so it is necessary to carry out stress relief and low
temperature annealing for cold working pipes. HSn70-1 is easy to
crack during hot pressing, and the content of impurities should be
strictly controlled
Our company's brass tube grades mainly include HAl77-2,HSn70-1,
HSn70-1B, HSn70-1AB,opper 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.
2. Chemical Composition
| Grade | Chemical Composition | Impurity composition /%, ≤ | ||||||||||
| Cu | Sn | As | B | Ni | Mn | Zn | Fe | Pb | Ai | 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 | —— | ||||||
| H68A | 67.0～70.0 | ≤0.01 | allowance | ≤0.01 | ≤0.03 | ≤0.3 | ||||||
3. Physical Properties
| Grade | Supply Status | Specifications/mm | Standard | ||
| OD | Wall Thickness | Length | |||
| 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
|
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