JIS ( Japanese ) Standard | AISI or SAE Standard


JIS G 3505 : Low Carbon Steel Wire Rods

Symbol
of Class
Chemical Composition %
C Mn P S
MSWR   6 0.08 max. 0.60 max. 0.045 max. 0.045 max.
MSWR   8 0.10 max. 0.60 max. 0.045 max. 0.045 max.
MSWR  10 0.08бн0.13 0.30бн0.60 0.045 max. 0.045 max.
MSWR  12 0.10бн0.15 0.30бн0.60 0.045 max. 0.045 max.
MSWR  15 0.13бн0.18 0.30бн0.60 0.045 max. 0.045 max.
MSWR  17 0.15бн0.20 0.30бн0.60 0.045 max. 0.045 max.
MSWR  20 0.18бн0.23 0.30бн0.60 0.045 max. 0.045 max.
MSWR  22 0.20бн0.25 0.30бн0.60 0.045 max. 0.045 max.


JIS G 3506 : High Carbon Steel Wire Rods
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Symbol
of Class
Chemical Composition %
C Si Mn P S
HSWR   27 0.24бн0.31 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR   32 0.29бн0.36 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR   37 0.34бн0.41 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR 42A 0.39бн0.46 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR 42B 0.39бн0.46 0.15бн0.35 0.60бн0.90 0.040 max. 0.040 max.
HSWR 47A 0.44бн0.51 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR 47B 0.44бн0.51 0.15бн0.35 0.60бн0.90 0.040 max. 0.040 max.
HSWR 52A 0.49бн0.56 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR 52B 0.49бн0.56 0.15бн0.35 0.60бн0.90 0.040 max. 0.040 max.
HSWR 57A 0.54бн0.61 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR 57B 0.54бн0.61 0.15бн0.35 0.60бн0.90 0.040 max. 0.040 max.
HSWR 62A 0.59бн0.66 0.15бн0.35 0.30бн0.60 0.040 max. 0.040 max.
HSWR 62B 0.59бн0.66 0.15бн0.35 0.60бн0.90 0.040 max. 0.040 max.
HSWR 67A 0.64бн0.71 0.15бн0.35 0.30бн0.60 0.030 max. 0.030 max.
HSWR 67B 0.64бн0.71 0.15бн0.35 0.60бн0.90 0.030 max. 0.030 max.
HSWR 72A 0.69бн0.76 0.15бн0.35 0.30бн0.60 0.030 max. 0.030 max.
HSWR 72B 0.69бн0.76 0.15бн0.35 0.60бн0.90 0.030 max. 0.030 max.
HSWR 77A 0.74бн0.81 0.15бн0.35 0.30бн0.60 0.030 max. 0.030 max.
HSWR 77B 0.74бн0.81 0.15бн0.35 0.60бн0.90 0.030 max. 0.030 max.
HSWR 82A 0.79бн0.86 0.15бн0.35 0.30бн0.60 0.030 max. 0.030 max.
HSWR 82B 0.79бн0.86 0.15бн0.35 0.60бн0.90 0.030 max. 0.030 max.
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JIS G 3507 : Carbon Steel Wire Rods for Cold Heading and Cold Forging
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Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Al min. Remark
SWRCH   6R 0.08 max. - 0.60 max. 0.040 0.040 - Rimmed
Steels
SWRCH   8R 0.10 max. - 0.60 max. 0.040 0.040 -
SWRCH 10R 0.08бн0.13 - 0.30бн0.60 0.040 0.040 -
SWRCH 12R 0.10бн0.15 - 0.30бн0.60 0.040 0.040 -
SWRCH 15R 0.13бн0.18 - 0.30бн0.60 0.040 0.040 -
SWRCH 17R 0.15бн0.20 - 0.30бн0.60 0.040 0.040 -
SWRCH   6A 0.08 max 0.10 max. 0.60 max. 0.030 0.035 0.03 Aluminum
Killed
Steel
SWRCH   8A 0.10 max 0.10 max. 0.60 max. 0.030 0.035 0.02
SWRCH 10A 0.08бн0.13 0.10 max. 0.30бн0.60 0.030 0.035 0.02
SWRCH 12A 0.10бн0.15 0.10 max. 0.30бн0.60 0.030 0.035 0.02
SWRCH 15A 0.13бн0.18 0.10 max. 0.30бн0.60 0.030 0.035 0.02
SWRCH 16A 0.13бн0.18 0.10 max. 0.60бн0.90 0.030 0.035 0.02
SWRCH 18A 0.15бн0.20 0.10 max. 0.60бн0.90 0.030 0.035 0.02
SWRCH 19A 0.15бн0.20 0.10 max. 0.70бн1.00 0.030 0.035 0.02
SWRCH 20A 0.18бн0.23 0.10 max. 0.30бн0.60 0.030 0.035 0.02
SWRCH 22A 0.18бн0.23 0.10 max. 0.70бн1.00 0.030 0.035 0.02
SWRCH 10K 0.18бн0.13 0.10бн0.35 0.30бн0.60 0.030 0.035 - Killed
Steel
SWRCH 12K 0.10бн0.15 0.10бн0.35 0.30бн0.60 0.030 0.035 -
SWRCH 15K 0.13бн0.18 0.10бн0.35 0.30бн0.60 0.030 0.035 -
SWRCH 16K 0.13бн0.18 0.10бн0.35 0.30бн0.90 0.030 0.035 -
SWRCH 17K 0.15бн0.20 0.10бн0.35 0.30бн0.60 0.030 0.035 -
SWRCH 18K 0.15бн0.20 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 20K 0.18бн0.23 0.10бн0.35 0.30бн0.60 0.030 0.035 -
SWRCH 22K 0.18бн0.23 0.10бн0.35 0.70бн1.00 0.030 0.035 -
SWRCH 24K 0.19бн0.25 0.10бн0.35 1.30бн1.65 0.030 0.035 -
SWRCH 25K 0.22бн0.28 0.10бн0.35 0.30бн0.65 0.030 0.035 -
SWRCH 27K 0.22бн0.29 0.10бн0.35 1.20бн1.50 0.030 0.035 -
SWRCH 30K 0.27бн0.33 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 33K 0.30бн0.36 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 35K 0.32бн0.38 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 38K 0.35бн0.41 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 40K 0.37бн0.43 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 41K 0.36бн0.44 0.10бн0.35 1.35бн1.65 0.030 0.035 -
SWRCH 43K 0.40бн0.46 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 45K 0.42бн0.48 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 48K 0.45бн0.51 0.10бн0.35 0.60бн0.90 0.030 0.035 -
SWRCH 50K 0.47бн0.53 0.10бн0.35 0.60бн0.90 0.030 0.035 -
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JIS G 4051 : Carbon Steels for Machine Structural Us

Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max.
S 10C 0.08бн0.13 0.15бн0.35 0.30бн0.60 0.030 0.035
S 12C 0.10бн0.15 0.15бн0.35 0.30бн0.60 0.030 0.035
S 15C 0.13бн0.18 0.15бн0.35 0.30бн0.60 0.030 0.035
S 17C 0.15бн0.20 0.15бн0.35 0.30бн0.60 0.030 0.035
S 20C 0.18бн0.23 0.15бн0.35 0.30бн0.60 0.030 0.035
S 22C 0.20бн0.25 0.15бн0.35 0.30бн0.60 0.030 0.035
S 25C 0.22бн0.28 0.15бн0.35 0.30бн0.60 0.030 0.035
S 28C 0.25бн0.31 0.15бн0.35 0.60бн0.90 0.030 0.035
S 30C 0.27бн0.33 0.15бн0.35 0.60бн0.90 0.030 0.035
S 33C 0.30бн0.36 0.15бн0.35 0.60бн0.90 0.030 0.035
S 35C 0.32бн0.38 0.15бн0.35 0.60бн0.90 0.030 0.035
S 38C 0.35бн0.41 0.15бн0.35 0.60бн0.90 0.030 0.035
S 40C 0.37бн0.43 0.15бн0.35 0.60бн0.90 0.030 0.035
S 43C 0.40бн0.46 0.15бн0.35 0.60бн0.90 0.030 0.035
S 45C 0.42бн0.48 0.15бн0.35 0.60бн0.90 0.030 0.035
S 48C 0.45бн0.51 0.15бн0.35 0.60бн0.90 0.030 0.035
S 50C 0.47бн0.53 0.15бн0.35 0.60бн0.90 0.030 0.035
S 53C 0.50бн0.56 0.15бн0.35 0.60бн0.90 0.030 0.035
S 55C 0.52бн0.58 0.15бн0.35 0.60бн0.90 0.030 0.035
S 58C 0.55бн0.61 0.15бн0.35 0.60бн0.90 0.030 0.035
S  9 CK 0.07бн0.12 0.15бн0.35 0.30бн0.90 0.025 0.25
S 15CK 0.13бн0.18 0.15бн0.35 0.30бн0.90 0.025 0.25
S 20CK 0.18бн0.23 0.15бн0.35 0.30бн0.90 0.025 0.25
Note : S 9CK, S 15CK and S 20CK shall not contain as impurities, an excess of 0.25% Cu,
0.20% NI, 0.20% Cr, 0.30% Ni + Cr, and for other notations 0.30% Cu, 0.20% Ni,
0.20% Cr and 0.35% Ni +Cr.
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JIS G 4103 : Nickel Chromium Molybdenum Steels

Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Ni Cr Mo
SNCM 220 0.17бн0.23 0.15бн0.35 0.60бн0.90 0.030 0.030 0.40бн0.70 0.40бн0.65 0.15бн0.35
SNCM 240 0.38бн0.43 0.15бн0.35 0.70бн1.00 0.030 0.030 0.40бн2.70 0.40бн0.65 0.15бн0.35
SNCM 415 0.12бн0.18 0.15бн0.35 0.40бн0.70 0.030 0.030 1.60бн2.00 0.40бн0.65 0.15бн0.35
SNCM 420 0.17бн0.23 0.15бн0.35 0.60бн0.90 0.030 0.030 1.60бн2.00 0.40бн0.65 0.15бн0.35
SNCM 431 0.27бн0.35 0.15бн0.35 0.60бн0.90 0.030 0.030 1.60бн2.00 0.60бн1.00 0.15бн0.35
SNCM 439 0.36бн0.43 0.15бн0.35 0.60бн0.90 0.030 0.030 1.60бн2.00 0.60бн1.00 0.15бн0.35
SNCM 447 0.44бн0.50 0.15бн0.35 0.60бн0.90 0.030 0.030 1.60бн2.00 0.60бн1.00 0.15бн0.35
SNCM 616 0.13бн0.20 0.15бн0.35 0.80бн1.20 0.030 0.030 2.80бн3.20 1.40бн1.80 0.15бн0.35
SNCM 625 0.20бн0.30 0.15бн0.35 0.35бн0.60 0.030 0.030 3.00бн3.50 1.00бн1.50 0.15бн0.35
SNCM 630 0.25бн0.35 0.15бн0.35 0.35бн0.60 0.030 0.030 2.50бн3.50 2.50бн3.50 0.15бн0.35
SNCM 815 0.12бн0.18 0.15бн0.35 0.30бн0.60 0.030 0.030 4.00бн4.50 0.70бн1.00 0.15бн0.35
Note : As impurities, Cu shall not exceed 0.30% for all grades.


JIS G 4104 : Chromium Steels

Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Cr
SCr 415 0.13~0.18 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90~1.20
SCr 420 0.18~0.23 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90~1.20
SCr 430 0.28~0.33 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90~1.20
SCr 435 0.33~0.38 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90~1.20
SCr 440 0.38~0.43 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90~1.20
SCr 445 0.43~0.48 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90~1.20
Note : As impurities, Ni and Cu shall not exceed 0.25% and 0.30% respectively for all grades.


JIS G 4105 : Chromium Molybdenum Steels

Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Cr Mo
SCM 415 0.13бн0.18 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 418 0.16бн0.21 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 420 0.18бн0.23 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 421 0.17бн0.23 0.15бн0.35 0.70бн1.00 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 430 0.28бн0.33 0.15бн0.35 0.60бн0.85 0.030 0.030 1.00бн1.50 0.15бн0.30
SCM 432 0.27бн0.37 0.15бн0.35 0.30бн0.60 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 435 0.33бн0.38 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 440 0.38бн0.43 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 445 0.43бн0.48 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
SCM 822 0.20бн0.25 0.15бн0.35 0.60бн0.85 0.030 0.030 0.90бн1.20 0.15бн0.30
Note : As impurities, Ni and Cu shall not exceed 0.25% and 0.30% respectively for all grades.
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JIS G 4106 : Manganese Steels and
Manganese Chromium Steels for Machine Structural Use

Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Cr
SMn 420 0.17бн0.23 0.15бн0.35 1.20бн1.50 0.030 0.030 -
SMn 433 0.30бн0.36 0.15бн0.35 1.20бн1.50 0.030 0.030 -
SMn 438 0.35бн0.41 0.15бн0.35 1.35бн1.65 0.030 0.030 -
SMn 443 0.40бн0.46 0.15бн0.35 1.35бн1.65 0.030 0.030 -
SMn C 420 0.17бн0.23 0.15бн0.35 1.20бн1.50 0.030 0.030 0.35бн0.70
SMn C 443 0.40бн0.46 0.15бн0.35 1.35бн1.60 0.030 0.030 0.35бн0.70
Note : As impurities, Ni 0.25 Cu 0.30% shall not be exceeded for each class.
Neither Cr 0.35% shall not be exceeded for SMn 433, SMn 438, SMn 443 and SMn 420.


JIS G 4801 : Spring Steels

Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Cr V B
SUP   3 0.75бн0.90 0.15бн0.35 0.30бн0.60 0.035 0.035 - - -
SUP   6 0.56бн0.64 1.50бн1.80 0.70бн1.00 0.035 0.035 - - -
SUP   7 0.56бн0.64 1.80бн2.20 0.70бн1.00 0.035 0.035 - - -
SUP   9 0.52бн0.60 0.15бн0.35 0.65бн0.95 0.035 0.035 0.65бн0.95 - -
SUP  9A 0.56бн0.64 0.15бн0.35 0.70бн1.00 0.035 0.035 0.70бн1.00 - -
SUP  10 0.47бн0.55 0.15бн0.35 0.65бн0.95 0.035 0.035 0.80бн1.10 0.15бн0.25 -
SUP 11A 0.55бн0.65 0.15бн0.35 0.70бн1.00 0.035 0.035 0.70бн1.00 - 0.0005 min.
SUP  12 0.51бн0.59 1.20бн1.60 0.60бн0.90 0.035 0.035 0.60бн0.90 - -
SUP  13 0.56бн0.64 0.15бн0.35 0.70бн1.00 0.035 0.035 0.70бн0.90 - -
Note : Throughout classes, the value of Cu as impurities shall not exceed 0.30%
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JIS G 4804 : Free Cutting Carbon Steels
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Symbol
of Class
Chemical Composition %
C Mn P S Pb
SUM   11 0.08бн0.13 0.30бн0.60 0.040 max. 0.08бн0.13 -
SUM   12 0.08бн0.13 0.60бн0.90 0.040 max. 0.08бн0.13 -
SUM   21 0.13 max. 0.70бн0.10 0.07бн0.12 0.16бн0.23 -
SUM   22 0.13 max. 0.70бн1.00 0.07бн0.12 0.24бн0.33 -
SUM 22L 0.13 max. 0.70бн1.00 0.07бн0.12 0.24бн0.33 0.10бн0.35
SUM   23 0.09 max. 0.75бн1.05 0.04бн0.09 0.26бн0.35 -
SUM 23L 0.09 max. 0.75бн1.05 0.04бн0.09 0.26бн0.35 0.10бн0.35
SUM 24L 0.15 max. 0.85бн0.15 0.04бн0.09 0.26бн0.35 0.10бн0.35
SUM   25 0.15 max. 0.90бн1.40 0.07бн0.12 0.30бн0.40 -
SUM   31 0.14бн0.20 1.00бн1.30 0.040 max. 0.08бн0.13 -
SUM 31L 0.14бн0.20 1.00бн1.30 0.040 max. 0.08бн0.13 0.10бн0.35
SUM   32 0.12бн0.20 0.60бн1.10 0.040 max. 0.10бн0.20 -
SUM   41 0.32бн0.39 1.35бн1.65 0.040 max. 0.08бн0.13 -
SUM   42 0.37бн0.45 1.35бн1.65 0.040 max. 0.08бн0.13 -
SUM   43 0.40бн0.48 1.35бн1.65 0.040 max. 0.24бн0.33 -


JIS G 4805 : High Carbon Chromium Bearing Steels
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Symbol
of Class
Chemical Composition %
C Si Mn P Max. S Max. Cr Mo
SUJ 1 0.95бн1.10 0.15бн0.35 0.50 max. 0.025 0.025 0.90бн120 -
SUJ 2 0.95бн1.10 0.15бн0.35 0.50 max. 0.025 0.025 1.30бн1.60 -
SUJ 3 0.95бн1.10 0.40бн0.70 0.90бн1.15 0.025 0.025 0.90бн1.20 -
SUJ 4 0.95бн1.10 0.15бн0.35 0.50 max. 0.025 0.025 1.30бн1.60 0.10бн0.25
SUJ 5 0.95бн1.10 0.40бн0.70 0.90бн1.15 0.025 0.025 0.90бн1.20 0.10бн0.25
Note : As impurities, Ni, Cu shall not exceed 0.25%

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