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Brass Tube

C44300 Tin Brass Condenser

Product description:Trace As can inhibit dezincification corrosion and further improve the corrosion resistance properties. It is widely used in thermal power plants to produce high-strength and corrosion-resistant heat exchanger condensation tubes. In recent years, studies have shown that adding the addition of trace elements such as boron and nickel into C44300 can further improve the corrosion resistance properties of the alloy.
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Chemical Composition

Grade

Composition

Cu

As

Al

Zn

Fe

Pb

Other Elements

C68700

76-79

0.02-0.1

1.8-2.5

Rem.

0.06

0.07

0.07

C44300

76-79

0.03-0.1

1.8-2.5

Rem.

0.1

0.05

0.05


Dimension

product

Grade

Shape

Temper

Dimension

O.D.

Wall Thcikness

Length (mm)

Drawn tubes

C68700

Round

H 1/2H 1/2O O

10~100

1.0~10

OD.≤100 L1000~7000
OD.>100 L500~6000


 

Mechancial Properties

Temper

Shape

O.D.

Tensile Strength Rm/ (N/mm2)

Elongation A/ % min

HV

HB

O

Round

6~100 

≥295

40

60~90

55~85

1/2O

≥320

35

70~100

65~95

1/2H

≥370

20

85~110

80~105

H

≥455

-

≥110

≥105





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