rakau poroporo

Uara ingoa

Te diameter o te tinana o te rakau D
+0.127-0.254（+0.005-0.010）
mm(i roto)

Roa Lmm士 50mm （Mau 士 2in)

Miro diameter ingoa mm（in）

mm (in）) Miro waho te whanui o waho o te pokohiwi

He pai te rahi o te rakau ngote mm (in)

29

28. 6 (11/8）

2438, 3353, 4877, 6707, 7315, 7925
(8, 11. 16. 22. 24, 26)

24（15/16） PR

一

16 (5/8)

27 （1 1/16） PR

一

19 (3/4)

29

28. 6 (11/8）) ka whakaparahako te rakau ki tetahi pito

2438, 3353, 4877, 6707, 7315, 7925 (8. 11, 16. 22, 24, 26)

24 (15/16 ) SR

31.8+0.127-0.254 (1.250+0.005-0.010)

16 (5/8)

27 (1 1/16 ) SR

38.1+0.127-0.254 (1.500+0.005-0.010)

19 (3/4)

32

31.8（1 1/4）

3353, 4877, ,6707,7315, 7925, 9144, 10973
(11, 16, 22 . 24. 26, 30. 36)

30 (1 3/16 ) PR

一

22(7/8)

32

31.8（1 1/4）a-roo-riri ki tetahi pito

3353, 4877, ,6707,7315, 7925, 9144, 10973
(11, 16, 22 . 24. 26, 30. 36)

30 (1 3/16 ) SR

41.3+0.127-0.254 (1.625+0.005-0.010)

22(7/8)

38

38. 1 (1 1/2）

4877, 6707, 7315, 7925. 9144. 10973
(16, 22. 24, 26, 30. 36)

35（1 3/8）PR

一

25(1)

38

38. 1 (1 1/2）) he rakau-pouri ki tetahi pito

4877, 6707, 7315, 7925. 9144. 10973
(16, 22. 24, 26, 30. 36)

40（1 9/16）SR

57.2+0.381-0.381 (2.250+0.015-0.015)

29(1 1/8)

KOeke

Te Kaha Hua Iti(0.2% Te Huringa Whakanoho)

Te Kaha Tensile Iti

Te Kaha Tensile Morahi

Whakaroa200mm%

Whakahekenga o te Horahanga Z%

HRC

HB

Te ora rohirohi

psi

MPa

psi

MPa

psi

MPa

≥13

≥50

/

/

≥1.0X106

C

60000

414

90000

621

115000

793

≥13

≥50

/

/

/

D

85000

586

115000

793

140000

965

≥13

≥50

/

/

/

KD

85000

590

115000

795

140000

965

≥13

≥50

/

/

/

H

115000

795

140000

965

173339

1195

≥13

≥45

/

/

/

EHL

/

/

188500

1300

217500

1500

/

/

≥50

≥320

≥2.5X106

Kia mahara: Ki te kore e taea te ine i te kaha tuku iti, me whakaaro kia mahia hei tauira paerewa me te whakauru i te extensometer hei ine.

A He mea hanga mai i te maitai waro kounga teitei, ka eke ki nga ahuatanga miihini o te tepu
b Ko te maitai molybdenum (engari kaore i te iti ki tenei momo rino) ka whakamahia, ka taea e te maimoatanga wera whai hua te whakatutuki i nga ahuatanga miihini o tenei tepu

AISI

C

Si

Mn

P

S

Cr

Ni

Mo

V

Cu

Al

4130

0.26-0.33

0.17-0.37

0.4-0.7

≤0.025

≤0.025

0.8-1.1

≤0.3

0.15-0.25

/

≤0.2

/

4140

0.38-0.45

0.17-0.37

0.5-0.8

≤0.025

≤0.025

0.9-1.2

≤0.3

0.15-0.25

0.04-0.09

≤0.2

/

4142

0.38-0.45

0.17-0.37

0.5-0.8

≤0.025

≤0.025

0.9-1.2

≤0.3

0.15-0.25

0.04-0.09

≤0.2

/

4330

0.3-0.35

0.15-0.35

0.8-1.1

≤0.025

≤0.025

0.8-1.1

1.65-2.0

0.2-0.3

0.05-0.10

≤0.2

/

4720

0.19-0.23

0.15-0.35

0.85-1.05

≤0.025

≤0.025

0.8-1.05

0.9-1.2

0.22-0.30

0.02-0.05

0.40-0.60

/