6 Ʈ,Ʈ ͼŴ KSB1010 JISB1186,
ASTM A325,ASTM A490 Ǹ ַ
ö տ ȴ.

Ʈ

ϴ ǰ

ũ ġ

Ʈ

Ʈ

ͼ

1

A

F8T

F10(F8)

F35

B

2

A

F10T

F10

B

(3)

A

(F11T)

B


߽

Yield Strength
Kgf/mm

Tensile Strength
Kgf/mm

Elongation
%

Reduction of Area
%

F8T

64min

80 to 100

16min

45min

F10T

90min

100 to 120

14min

40min

F11T

95min

110 to 130

14min

40min


ǰ

(min)(Kgf)



(HRC)

ȣĪ

M12

M16

M20

M22

M24

M27

M30

F8T
F10T
F11T

6.740
8.430
9.270

12.600
15.700
17.300

19.600
24.500
27.000

24.200
30.300
33.300

28.200
35.300
38.800

36.700
45.900
50.500

44.900
56.100
61.700

18-31
27-38
30-40


߳Ʈ


ּ

ִ

F8

HRB85

HRB100

F10

HRB95(HRC16)

HRC 35


߿ͼ

F35

HRC35-HRC45