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Carbon Steel for Machine Structural Use


Stock list

End applications

washers, skate edges, sewing machine parts, materials for cold-rolled steel strip, clutch plates,
automobile parts, clip springs, chains, torque converter plates, safety buckles,
safety shoe toe plates, knitting machinery parts, thomson blades, roll pins, speed nuts, clips

Usage examples

All-in-one Drive Plate:S35C (AY)

All-in-one Drive Plate:S35C (AY)

Rice planting machine handling arm parts:S45C (AY)

Rice planting machine handling arm parts:S45C (AY)

Chemical Composition

JIS SAE Nisshin Standard Chemical Composition(%)
C Si Mn P S
S09CK     0.07~0.12 0.10~0.35 0.30~0.60 0.025max 0.025max
S10C     0.08~0.13 0.15~0.35 0.30~0.60 0.030max 0.035max
S12C     0.10~0.15 0.15~0.35 0.30~0.60 0.030max 0.035max
    N15CK 0.10~0.15 0.15~0.35 0.30~0.60 0.025max 0.025max
S15CK     0.13~0.18 0.15~0.35 0.30~0.60 0.025max 0.025max
  SAE1015   0.13~0.18 0.15~0.30 0.30~0.60 0.040max 0.050max
S15C     0.13~0.18 0.15~0.35 0.30~0.60 0.030max 0.035max
  SAE1018   0.15~0.20 0.15~0.30 0.60~0.90 0.030max 0.050max
  SAE1019   0.15~0.20 0.15~0.30 0.70~1.00 0.030max 0.050max
S17C     0.15~0.20 0.15~0.35 0.30~0.60 0.030max 0.035max
  SAE1020   0.18~0.23 0.15~0.30 0.30~0.60 0.030max 0.050max
  SAE1022   0.18~0.23 0.15~0.30 0.70~1.00 0.030max 0.050max
S20C     0.18~0.23 0.15~0.35 0.30~0.60 0.030max 0.035max
S20CK     0.18~0.23 0.15~0.35 0.30~0.60 0.025max 0.025max
  SAE1023   0.20~0.25 0.15~0.30 0.30~0.60 0.040max 0.050max
S22C     0.20~0.25 0.15~0.35 0.30~0.60 0.030max 0.035max
S25C     0.22~0.28 0.15~0.35 0.30~0.60 0.030max 0.035max
S28C     0.25~0.31 0.15~0.35 0.60~0.90 0.030max 0.035max
S30C     0.27~0.33 0.15~0.35 0.60~0.90 0.030max 0.035max
  SAE1030   0.28~0.34 0.15~0.30 0.60~0.90 0.030max 0.050max
S33C     0.30~0.36 0.15~0.35 0.60~0.90 0.030max 0.035max
  SAE1035   0.32~0.38 0.15~0.30 0.60~0.90 0.030max 0.050max
S35C     0.32~0.38 0.15~0.35 0.60~0.90 0.030max 0.035max
S38C     0.35~0.41 0.15~0.35 0.60~0.90 0.030max 0.035max
  SAE1040   0.37~0.44 0.15~0.30 0.60~0.90 0.030max 0.050max
S40C     0.37~0.43 0.15~0.35 0.60~0.90 0.030max 0.035max
S43C     0.40~0.46 0.15~0.35 0.60~0.90 0.030max 0.035max
S45C     0.42~0.48 0.15~0.35 0.60~0.90 0.030max 0.035max
  SAE1045   0.43~0.50 0.15~0.30 0.60~0.90 0.030max 0.050max
JIS SAE Nisshin Standard Chemical Composition(%)
C Si Mn P S
    N45B 0.43~0.50 0.15~0.30 0.40~0.65 0.030max 0.035max
    NCL1 0.45~050 0.15~0.30 0.60~0.90 0.035max 0.040max
S48C     0.45~0.51 0.15~0.35 0.60~0.90 0.030max 0.035max
S50C     0.47~0.53 0.15~0.35 0.60~0.90 0.030max 0.035max
    N50S 0.45~0.55 0.15~0.35 0.60~0.90 0.030max 0.035max
  SAE1050   0.48~0.55 0.15~0.30 0.60~0.90 0.030max 0.050max
    N50B 0.48~0.55 0.15~0.30 0.40~0.65 0.030max 0.035max
S53C     0.50~0.56 0.15~0.35 0.60~0.90 0.030max 0.035max
    NU52 0.50~0.58 0.15~0.35 0.60~0.90 0.030max 0.035max
S55C     0.52~0.58 0.15~0.35 0.60~0.90 0.030max 0.035max
    N55D 0.52~0.58 0.10max 0.60~0.90 0.030max 0.035max
  SAE1055   0.50~0.60 0.15~0.30 0.60~0.90 0.030max 0.050max
S58C     0.55~0.61 0.15~0.35 0.60~0.90 0.030max 0.035max
  SAE1060   0.55~0.65 0.15~0.30 0.60~0.90 0.030max 0.050max
    N60C 0.55~0.65 0.15~0.30 0.60~0.90 0.030max 0.035max
  SAE1064   0.60~0.70 0.15~0.30 0.50~0.80 0.030max 0.050max
  SAE1065   0.60~0.70 0.15~0.30 0.60~0.90 0.030max 0.050max
    N63C 0.60~0.65 0.15~0.30 0.70~0.90 0.030max 0.035max
    N65C 0.60~0.70 0.15~0.30 0.60~0.90 0.030max 0.035max
  SAE1566   0.60~0.71 0.15~0.30 0.85~1.15 0.030max 0.050max
    N66C 0.62~0.70 0.17~0.37 0.90~1.20 0.030max 0.035max
    N70C 0.65~0.75 0.15~0.30 0.60~0.90 0.030max 0.035max
    NK11 0.65~0.75 0.35max 0.50~0.80 0.030max 0.030max
  SAE1070   0.65~0.75 0.15~0.30 0.60~0.90 0.030max 0.050max
  SAE1074   0.70~0.80 0.15~0.30 0.50~0.80 0.030max 0.050max
    N75C 0.70~0.80 0.15~0.30 0.60~0.90 0.030max 0.035max
  SAE1075   0.70~0.80 0.15~0.30 0.40~0.70 0.030max 0.050max
  SAE1080   0.75~0.88 0.15~0.30 0.60~0.90 0.030max 0.050max
    N85C 0.80~0.90 0.15~0.30 0.70~1.00 0.030max 0.035max
  SAE1085   0.80~0.93 0.15~0.30 0.70~1.00 0.030max 0.050max
  SAE1090   0.85~0.98 0.15~0.30 0.60~0.90 0.030max 0.050max

Mechanical properties(hot rolled)

  Type of
steel
Hot-rolled
hardness
(HRB)
Hardening Tempering Annealed
hardness
(HRB)
Water quenched
3.15mm max
Oil quenched
below 3.15mm
Temperature(℃) Hardness(HRC)
Temperature
(℃)
Hardness
(HRC)
Temperature
(℃)
Hardness
(HRC)
Water
quenched
Oil
quenched
J
I
S
S10C 76
max
- - - - - - - -
S12C 81
max
- - - - - - - -
S15C 83
max
- - - - - - - -
S17C 85
max
- - - - - - - -
S20C 86
max
- - - - - - - -
S22C 88
max
- - - - - - - -
S25C 90
max
- - - - - - - -
S28C 91
max
- - - - - - - -
S30C 93
max
850~900 46
min
- - 150~200
air cooled
42
min
- 85
max
S33C 97
max
840~890 46
min
- - 150~200
air cooled
42
min
- 85
max
S35C 98
max
840~890 46
min
- - 150~200
air cooled
43
min
- 88
max
S38C 99
max
830~880 46
min
- - 150~200
air cooled
43
min
- 88
max
S40C 99
max
830~880 53
min
830~880 51
min
150~200
air cooled
47
min
45
min
90
max
S43C 100
max
820~870 53
min
830~880 51
min
150~200
air cooled
47
min
45
min
90
max
S45C 101
max
820~870 53
min
830~880 51
min
150~200
air cooled
50
min
45
min
91
max
S48C 102
max
810~860 55
min
810~860 53
min
150~200
air cooled
50
min
48
min
91
max
S50C 104
max
810~860 55
min
810~860 53
min
150~200
air cooled
50
min
48
min
92
max
S53C 106
max
800~850 55
min
810~860 53
min
150~200
air cooled
50
min
48
min
92
max
S55C 107
max
800~850 55
min
810~860 53
min
150~200
air cooled
52
min
50
min
93
max
S58C 108
max
800~850 58
min
800~850 56
min
150~200
air cooled
52
min
50
min
93
max
S09CK
(S9CK)
76
max
- - - - - - - -
S15CK 83
max
- - - - - - - -
S20CK 86
max
- - - - - - - -
  Type of
steel
Hot-rolled hardness Hardning Tempering Annealed
hardness
(HRB)
Water quenched
3.15mm max
Oil quenched
below3.15mm
Temperature(℃) Hardness(HRC)
Temperature
(℃)
Hardness
(HRC)
Temperature
(℃)
Hardness
(HRC)
Water
quenched
Oil
quenched
S
A
E

SAE1015 HRB85
max
- - - - - - - -
SAE1018 HRB90
max
- - - - - - - -
SAE1019 HRB90
max
- - - - - - - -
SAE1020 HRB86
max
- - - - - - - -
SAE1022 HRB93
max
- - - - - - - -
SAE1023 HRB88
max
- - - - - - - -
SAE1030 HRB98
max
850~900 45
min
- - 150~200
air cooled
42
min
- 86
max
SAE1035 HRB99
max
850~900 46
min
- - 150~200
air cooled
43
min
- 88
max
SAE1040 HRB100
max
820~870 53
min
830~880 51
min
150~200
air cooled
47
min
45
min
90
max
SAE1045 HRB104
max
820~870 56
min
830~880 54
min
150~200
air cooled
47
min
45
min
91
max
SAE1050 HRB107
max
810~860 56
min
810~860 54
min
150~200
air cooled
50
min
48
min
92
max
SAE1055 HRB108
max
800~850 56
min
810~860 54
min
150~200
air cooled
50
min
48
min
93
max
SAE1060 HRC34
max
760~820 59
min
790~850 57
min
150~200
air cooled
54
min
52
min
94
max
SAE1064 HRC35
max
760~820 59
min
780~840 57
min
150~200
air cooled
54
min
52
min
94
max
SAE1065 HRC35
max
760~820 59
min
780~840 57
min
150~200
air cooled
54
min
52
min
94
max
SAE1566 HRC38
max
790~850 59
min
780~840 57
min
150~200
air cooled
54
min
52
min
97
max
SAE1070 HRC37
max
760~820 59
min
780~840 57
min
150~200
air cooled
56
min
54
min
96
max
SAE1074 HRC38
max
760~820 59
min
780~840 57
min
150~200
air cooled
56
min
54
min
96
max
SAE1075 HRC38
max
760~820 59
min
780~840 57
min
150~200
air cooled
56
min
54
min
96
max
SAE1080 HRC40
max
760~820 62
min
780~840 60
min
150~200
air cooled
58
min
58
min
96
max
SAE1085 HRC42
max
760~820 62
min
770~830 60
min
150~200
air cooled
59
min
59
min
97
max
SAE1090 HRC43
max
760~820 62
min
770~830 60
min
150~200
air cooled
59
min
59
min
97
max
  Type
of steel
Hot-rolled
hardness
Hardening Tempering Annealed
hardness
(HRB)
Water quenched
3.15mm max
Oil quenched
below3.15mm
Temperature
(℃)
Hardness(HRC)
Temperature
(℃)
Hardness
(HRC)
Temperature
(℃)
Hardness
(HRC)
Water
quenched
Oil
quenched
Nisshin
Standard

N45B HRB102
max
820~870 53
min
830~880 51
min
150~200
air cooled
50
min
45
min
91
max
N50B HRB108
max
800~850 56
min
810~860 54
min
150~200
air cooled
54
min
52
min
92
max
N60C HRC 34
max
760~820 58
min
790~820 56
min
150~200
air cooled
54
min
52
min
94
max
N63C HRC 34
max
760~820 58
min
780~840 56
min
150~200
air cooled
54
min
52
min
94
max
N65C HRC 35
max
760~820 58
min
780~840 56
min
150~200
air cooled
54
min
52
min
94
max
N66C HRC 38
max
760~820 58
min
780~840 56
min
150~200
air cooled
54
min
52
min
97
max
N70C HRC 37
max
760~820 58
min
780~840 56
min
150~200
air cooled
54
min
52
min
96
max
N75C HRC 38
max
760~820 58
min
780~840 56
min
150~200
air cooled
54
min
52
min
96
max
N85C HRC 42
max
760~820 61
min
770~830 59
min
150~200
air cooled
59
min
58
min
97
max
N15CK HRB 81
max
- - - - - - - -
NCL1 HRB102
max
800~850 56
min
810~860 54
min
550~650
air cooled
14
min
14
min
91
max
NU52 HRB105
max
800~850 56
min
810~860 54
min
150~200
air cooled
50
min
48
min
92
max
N50S HRB108
max
800~850 56
min
810~860 54
min
150~200
air cooled
54
min
52
min
91
max
NK11 HRC 37
max
760~820 58
min
780~840 56
min
150~200
air cooled
56
min
54
min
94
max
N55D HRB107
max
810~850 55
min
820~860 53
min
150~200
air cooled
52
min
50
min
93
max

Mechanical properties(cold rolled)

Type of steel Annealing Hardness Deep-Drawing Hardness
Standard Special
HV HV HV
J
I
S

S15C ≦140 ≦130 150~180
S20C ≦150 ≦140 150~180
S25C ≦150 ≦140 150~180
S30C ≦150 ≦140 150~180
S35C ≦150 ≦140 160~240
S40C ≦150 ≦140 160~240
S45C ≦160 ≦150 170~240
S50C ≦160 ≦150 180~260
S55C ≦170 ≦160 180~260
S60C ≦170 ≦160 180~280
S65C ≦170 ≦160 180~280
S70C ≦180 ≦170 180~280
S75C ≦180 ≦170 180~280
S
A
E

SAE1050 ≦160 ≦150 180~260
SAE1055 ≦170 ≦160 180~260
SAE1060 ≦170 ≦160 180~280
SAE1070 ≦180 ≦170 180~280
SAE1080 ≦180 ≦170 180~280
Nisshin
Standard

N63C ≦170 ≦160 180~280
N70C ≦180 ≦170 180~280
N55D ≦160 ≦150 -

For more information on Nisshin Steel materials, click the link below.
Click here for hot rolled catalog
Click here for cold rolled catalog

Notice

These material information in this page is based on Nisshin Steel Co.,Ltd. product catalog.

There are some cases maker do not accept the production depending on the production lot and specification.

Technical information in this website,while every reasonable effort was made to ensure the accuracy at the time of this publication, is general information relating to our products only and is not meant as any warranty,expressed or implied.
Such technical information does not guarantee that any of our products are suitable for your particular application or purpose. Use of any information contained in this website shall be at user's risk. Any information in this website is subject to change without prior notice. Please contact our company for up-dated information.

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ZIP: 559-0032
5-26, 5-Chome, Nankominami, Suminoe-ku, Osaka, JAPAN

tws.en@tenhiko.co.jp

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