THÉP CARBON
 

THÉP HỢP KIM
 

THÉP HỢP KIM CÔNG CỤ
 

Thép carbon công cụ

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Bộ phận xích
Phụ tùng dây an toàn ô tô
Lò xo và vòng đệm
Bánh răng
Phụ tùng ô tô AT
 

Phụ tùng ô tô ghế ngả
Phụ tùng khóa cửa
Giảm chấn
 

Dao
Lưỡi cưa
Công cụ
 

Lò xo
Lưỡi dao cạo
Kiêm tiêm
Dụng cụ đo lường
 

Mác Thép

C

Si

Mn

P

S

Cr

Ni

Mo

SCR420

0.17 - 0.23

0.15- 0.35

0.55 - 0.90

≤ 0.030

≤0.030

0.85 – 1.25

≤0.25

-

Cu ≤0.30

SCR440

0.37 – 0.44

0.15 – 0.35

0.55 – 0.90

≤ 0.030

≤0.030

0.85- 1.25

≤0.25

-

Cu ≤0.30

SCM415

0.13 – 0.18

0.15- 0.35

0.60 – 0.90

≤ 0.030

≤0.030

0.90 – 1.20

≤0.25

0.15 – 0.25

Cu ≤0.30

SCM420

0.18 – 0.23

0.15- 0.35

0.60 – 0.9

≤ 0.030

≤0.030

0.90 – 1.20

≤0.25

0.15 – 0.25

Cu ≤0.30

SCM430

0.28 – 0.33

0.15- 0.35

0.60 – 0.9

≤ 0.030

≤0.030

0.90 – 1.20

≤0.25

0.15 – 0.30

Cu ≤0.30

SCM435

0.33 – 0.38

0.15- 0.35

0.60 – 0.9

≤ 0.030

≤0.030

0.90 – 1.20

≤0.25

0.15 – 0.30

Cu ≤0.30

SCM440

0.38 – 0.43

0.15- 0.35

0.60 – 0.9

≤ 0.030

≤0.030

0.90 – 1.20

≤0.25

0.15 – 0.30

Cu ≤0.30

S20C

0.18 – 0.23

0.15 – 0.35

0.30 – 0.60

≤ 0.030

≤0.035

≤0.20

≤0.20

Cu ≤0.30

S35C

0.32 – 0.38

0.15 – 0.35

0.6 – 0.9

≤ 0.030

≤0.035

≤0.20

≤0.20

Cu ≤0.30

S45C

0.42 – 0.48

0.15 – 0.35

0.6 – 0.9

≤ 0.030

≤0.035

≤0.20

≤0.20

S50C

0.47 – 0.53

0.15 – 0.35

0.6 – 0.9

≤ 0.030

≤0.035

≤0.20

≤0.20

SKD11

1.4 – 1.6

≤ 0.40

≤ 0.60

≤ 0.030

≤ 0.030

11.0 – 13.0

0.8 – 1.2

V  0.2 – 0.5

SKD61

0.35 – 0.42

0.8 – 1.2

0.25 – 0.50

≤ 0.030

≤ 0.030

4.80 – 5.50

1.0 – 1.5

V 0.8 – 1.15

Nhật Bản

Hàn QUốc

Đức

Mỹ

Trung Quốc

Thép tròn đặc Carbon JIS G4051:

S10C

SM10C

Ck10
C10E

1.1121

S15C

SM15C

SAE1015

S18C

SM18C

SAE1018

S20C

SM20C

C22

1.0402

SAE1020

S25C

SM25C

SAE1055

S30C

SM30C,

S35C

C35

1.0501

SAE1035

S45C

S45Cr, S45CM, S45CS, SM45C(D),

Ck45
c45E

1.0503

SAE1045

S48C

S48CM, SM48C

SAE1048

S50C

SM50C(D),

C50

1.0540

SAE1050

S53C

S53CM, S53CrB SM53C,

SAE1053

S55C

S55CKN SM55C,

Ck55
c55E

1.0535

SAE1055

Thép hợp kim Cr+Niken
JIS G4102

SNC236

SNC415

SNC631

SNC815

SNC836

JIS G4103 thép hợp kim Cr +Niken

SNCM220

21NiCrMo2

1.6523
 

8620

SNCM240

SNCM415

SNCM431

SNCM439

34CrNiMo6
 

1.6582

4340

GB/T 3077

SNCM447

SNCM616

SNCM625

SNCM630

SNCM815

Thép hợp kim Chrome
JIS G4104

SCr415

1.7015

SCr420

SCr420H, SCr420H1,

SCr425

SCr430

28Cr4

1.7033

5130

SCr435

34Cr4

1.7034

5135

SCr440

SCr440H(M)

41Cr4
41CrS4

1.7035

5140

Thép hợp kim Chrome – Molyb
JIS G4105

SCM415

SCM415H,
SCMH1, SCMH1ST, SCMH1MD,

1.7262

SCM420

SCM420H, SCM420H1
SCM420HD,

25CrMo4
 

1.7218

4120

SCM435

SCM435, SCM435H

34CrMo4
 

1.7220

4130

SCM440

SCM440H,

42CrMo4

1.7225
 

4140

42CrMo

SCM445

SCM445,

1.7228

4145
4147

SCM822

SCM822H, SCM822HST

1.7258

JIS G4401
Thép công cụ

SK1

SK2

Sk3

SK4

SK5

SK6

SK7

JIS G4403 High-Speed
Tool Steel

SKH2

SKH3

SKH4

SKH10

SKH51

SKH52

SKH53

SKH54

SKH55

SKH56

SKH57

SKH58

SKH59

JIS G4404 Alloy Tool
Steel
 

SKD1

SKD11

SKD12

SKD4

SKD5

SKD6

SKD61

SKD62

SKD7

SKD8

JIS G4801 Spring Steel

SUP3

SUP6

61SiCr7

1.7108

9260

SUP7

SUP9

55Cr3

1.7176

5155

SUP9A

SUP10

51CrV4

1.8159

SUP11A

SUP12

SUP13

JIS G4804 Sulfuric and
Sulfur Compound
Free Cutting Steel

SUM11

SUM12

SUM21

SUM22

SUM22L

SUM23

SUM23L

SUM24L

SUM25

SUM31

SUM31L

SUM32

SUM41

SUM42

SUM43

JIS G4805 High Carbon
Chrome
Bearing
Steel

SUJ1

SUJ2

100Cr6

52100

100Cr6

SUJ3

SUJ4

SUJ5