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Construction Good Malleability HSn70A Seamless Copper Tube

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Construction Good Malleability HSn70A 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

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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

Construction Good Malleability HSn70A Seamless Copper Tube


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