Number

L1
inch

size

L1
mm

L
mm

Φ
mm

Be-Cu
g

Al-Cu
g

TK261-02
TK261-04
TK261-06
TK261-08
TK261-10
TK261-12
TK261-14
TK261-16
TK261-18
TK261-20
TK261-22

2
3
4
5
6
8
10
12
14
16
18

0
1
1
2
2
3
3
4
4
4
4

50
75
100
125
150
200
250
300
350
400
450

134
159
205
240
265
327
377
427
477
550
600

3
4
5
6
6
8
8
9
9
9
9

35
70
75
100
110
165
185
245
270
295
320

32
63
70
95
105
155
170
230
255
280
300

Beryllium copper:  GBEx ⅡC

Be: 1.8% - 2.3%

Ni: 0.2% - 0.5%

Others: < 0.5%

Cu: Rest

Hardness: 35-40 HRC (HB283-365)

Tensile Strength: 1117 N/mm2 ~ 1326 N/mm2

Aluminum bronze: GBEx ⅡB

Al: 10% - 12%

Ni: 4% - 6%

Fe+Mn: < 5.8%

Cu: Rest

Hardness: 20-30 HRC (HB229-291)

Tensile Strength: 782 N/mm2 ~ 989 N/mm2