China New Fashion Design for Cw110c Bar - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou factory and suppliers | Kinkou

New Fashion Design for Cw110c Bar - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou


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New Fashion Design for Cw110c Bar - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou Detail:

1. Chemical Composition of C72700

Model

Ni

Sn

Mn

Pb

Zn

Fe

P

Impurities

Cu

C72700

8.5-9.5

5.5-6.5

0.05-0.3

≤0.03

≤0.15

≤0.05

≤0.05

≤0.5

Remnant

2. Physical Properties of C72700

Density

8.9

(g/cm3)

Melting Point

968-1078

(℃)

Thermal Expansion Coefficient

17.25

(X10-6/℃) 20-200℃

Elastic Modulus

120

(GPa)

Electrical Resistivity at 20℃

 

μΩ*cm

Quench

≤19.5

 

Precipitation Hardening

≤15

 

Electrical Conductivity(IACS,%)

 

(% IACS)

≥9

 

Precipitation hardening(3 hours)

≥12

 

Torsional Modulus

50

(GPa)

Thermal Conductivity at 20℃

53.6

(W/m.K)

Bending Fatigue Strength

450
Number of cycles:108

(MPa)

3. Mechanical Properties/State of C72700
1) Rolled Products

State

Hardness

Tensile Strength

Yield Strength

Elongaion

Bending*

Hardness, Elasticity and Bending Fatigue Properties(MPa)

HV

Rm (MPa)

Rp 0.2 (MPa)

A50mm (%)

Longitudinal//

Transverse⊥

Longitudinal//

Transverse⊥

Quenching

TB

90-125

420-500

≥200

≥30

0.2

0.2

302

220

Quenching/Cold Rolling

TD1

140-180

460-560

≥300

≥15

0.2

0.2

216

359

TD2

160-200

540-640

≥400

≥10

0.2

0.2

275

390

TD3

200-240

620-720

≥550

≥3

0.5

0.5

444

523

TD4

220-260

700-820

≥600

≈1

2

1

467

568

TDX

≤320

≥780

≥650

≈1

10

2

472

613

Quenching/Precipitation Heat Treatment

TF

230-270

740-860

≥510

≥10

0.5

0.5

566

634

Quenching/Cold Rolling/Precipitation Heat Treatment

TH1

270-310

850-950

≥650

≥8

0.5

0.5

684

724

TH2

290-320

880-980

≥720

≥8

1

1

730

770

TH3

310-340

950-1050

≥800

≥4

1

1

829

≥840

TH4

320-360

1000-1100

≥900

≈3

2

2

≥830

≥840

THX

≤390

≥1050

≥950

≈1

/

/

≥830

≥840

*:According to DIN 5011(25/10/85),bending 90 ° along the rolling direction, divide the minimum bending radius by the thickness to determine the R /t ratio

2) Drawn products

State

Hardness

Tensile Strength

Yield Strength

Elongaion

Expansion Coefficient

HV

Rm (MPa)

Rp 0.2 (MPa)

A50mm (%)

Z%

Quenching

TB

≤150

400-500

≥200

≥30

≥80

Quenching/Cold Rolling

TD1

150-180

500-580

≥300

≥10

≥75

TD2

180-230

550-720

≥500

≥3

≥70

TD3

220-260

700-800

≥600

≥2

≥65

TD4

230-300

780-880

≥700

≥1.5

≥60

TDX

250-320

880-1000

≥800

≥0.1

≥50

 

 

 

 

 

 

State

HV

Rm (MPa)

Rp 0.2 (MPa)

A50mm (%)

Z%

Quenching/Precipitation Heat Treatment

TF

≤260

770-870

≥500

≥20

≥40

Quenching/Cold Rolling/Precipitation Heat Treatment

TH1

260-300

870-970

≥700

≥13

≥30

TH2

290-310

930-1030

≥800

≥8

≥30

TH3

310-330

1000-1100

≥900

≥5

≥30

TH4

330-360

1100-1200

≥1000

≥2

≥30

THX

≥350

1175-1300

≥1100

≥0.5

≥30

4. Standard Tolerance of Rod and Wire of C72700

Type

Diameter

Tolerance of Diameter

Tolerance of Straightness

inch

mm

inch

mm

inch

mm

Wire

0.2-0.39

6.35-9.9

+/-0.002

+/-0.05

length=10ft,deviation<0.25 inches

length=3048mm,deviation<6.35mm

0.4-0.74

10-18.9

+0.005/-0

+0.13/-0

Rod

0.75-1.6

19-40.9

+0.02/+0.08

+0.5/+2.0

length=10ft,deviation<0.5 inches

length=3048mm,deviation<12mm

1.61-2.75

41-70

+0.02/+0.10

+0.02/+0.10

2.76-3.25

70.1-82

+0.02/+0.145

+0.02/+0.145

3.26-6.00

83-152.4

+0.02/+0.187

+0.02/+0.187

<0.4

<10

+/-0.002

+/-0.05

 

 

5. Application of C72700
Substituting beryllium copper alloy
It is used for glasses, electricians, electromechanical, electronics, connectors, automobiles, household appliances, spectade industry, turning parts


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New Fashion Design for Cw110c Bar - KINKOU-96 copper alloy(Cu-9Ni-6Sn  C72700) – Kinkou detail pictures


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With responsible good quality method, good status and excellent client services, the series of solutions produced by our company are exported to lots of countries and regions for New Fashion Design for Cw110c Bar - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou , The product will supply to all over the world, such as: Canada, Madras, Milan, We have been making our products for more than 20 years . Mainly do wholesale , so we have the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we provide good products , but also because of our good after-sale service . We are here waiting for you for your inquiry.
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    5 Stars By EliecerJimenez from Italy - 2017.06.16 18:23
    The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
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