Thép khuôn nhựa - NAK80

JIS

DIN

HITACHI

DAIDO

HB

HS

HRC

SCM440

1.7225

HIT-82

PDS3

265~300

37.5~42

26~30

P20

1.2311

HPM2

-

300~330

42~46

30~33

NAK80

2796ESR

CENA 1

NAK80

336~421

49~60

38~42

SUS420J2

1.2083

HPM38

S-STAR

276~301

42~44

29~33

600~680

74~80

55~58

Mác Thép

Thành Phần Hoá Học (%)

C

SI

Mn

P

S

Cr

Ni

Mo

S50C

0.47~0.53

0.15~0.35

0.6~0.9

0.03

0.035

-

0.25

-

S55C

0.52~0.58

0.15~0.35

0.6~0.9

0.03

0.035

-

-

-

SCM440

0.43

0.3

0.7

0.03

0.03

1.2

-

0.3

P20

0.35

0.3

0.95~1.1

0.03

0.03

1.8

0.25

0.5

SUS420J2

0.35~0.42

≤ 0.4

≤ 1.0

0.03

0.03

13~15

-

-

NAK80

≤ 0.14

≤ .03

≤ 1.4

0.03

0.03

0.3

2.5~3.0

0.3

SNCM439

0.43

0.3

0.7

0.03

0.03

1.0

1.6~2.0

0.35

2085

~0.33

~0.3

~0.8

~0.07

~16

~0.3