Items

Unit

Nominal diameter(mm)

75-130

150-200

250-300

Specific resistance not over

Electrode

μΩ.m

6.5

6.5

6.5

Nipple

4.5

4.5

4.5

Bending strength not below

Electrode

MPa

11

11

11

Nipple

18

18

18

Elastic modulus not over

Electrode

GPa

11

11

11

Nipple

14

14

14

Ash content not over

Electrode

%

0.2

0.2

0.2

Nipple

Bulk density not below

Electrode

g/cm3

1.65

1.65

1.65

Nipple

1.78

1.78

1.78

(C.T.E)not over

Electrode

10^-6/℃

2.0

2.0

2.0

Nipple

1.5

1.5

1.5

Items

Unit

Nominal diameter(mm)

350-400

450-500

550-600

Specific resistance not over

Electrode

μΩ.m

6.5

6.5

6.5

Nipple

4.5

4.5

4.5

Bending strength not below

Electrode

MPa

11

11

11

Nipple

18

20

20

Elastic modulus not over

Electrode

GPa

11

11

11

Nipple

16

16

16

Ash content not over

Electrode

%

0.2

0.2

0.2

Nipple

Bulk density not below

Electrode

g/cm3

1.65

1.65

1.65

Nipple

1.78

1.78

1.78

(C.T.E)not over

Electrode

10^-6/℃

2.0

2.0

2.0

Nipple

1.5

1.5

1.5

Nominal Diameters

Allowable Current

Current Desity

mm

A

A∕C㎡

75

1000-1400

22-31

100

1500-2400

19-30

130

2200-3400

17-26

150

3000-4500

16-25

200

5000-6900

15-21

250

7000-10000

14-20

300

10000-13000

14-18

350

15000-22000

15-22

400

20000-28000

15-22

450

24000-34000

15-21

500

28000-42000

13-20

550

33000-51000

13-20

600

38000-58000

13-20

Diameter （mm）

Length （mm）

Norminal Diameter

Max

Min

Min of Blacking

Standard

Tolerance

Short dimension length

75

78

73

72

1000

±50

-255

100

103

98

97

1200

130

132

127

126

1200

150

154

149

148

1600

1800

±100

-275

200

204

201

198

250

256

252

249

300

307

303

300

350

357

353

350

400

408

404

401

1600

1800

2000

2200

2400

2700

450

459

455

452

500

510

506

503

550

562

556

553

600

613

607

604