Japanese Industrial Standards -jis Specifications
JIS-G-4051 (1979) CARBON STEELS FOR MACHINE STRUCTURAL USE
Notes : As impurites Cu,Ni,Cr and Ni+Cr for classes S 09 CK,S 15 CK, S 20 CK shall not exceed respectively 0.25%,0.20%,0.20% and 0.30% and Cu, Ni,Cr and Ni +Cr for throughout other classes shall not exceed respectively 0.30%,0.20%, 0.20% and 0.35
JIS G 4052 (1979) STRUCTURAL STEELS WITH SPECIFIED HARDENABILITY BANDS
Remarks :1. As impurities Cu shall not exceed 0.305 throughout all classes 2. As impurities Ni shall not exceed 0.25% excepting nickel chromium steel and nickel chromium molybdenum steel 3. Cr in manganese steel shall not exceed 0.35
JIS G 4102 (1979) NICKEL CHROMIUM STEELS
Remarks  1. As impurities Cu shall not exceed 0.30% throughout all classes
JIS G 4103 (1979) NICKEL CHROMIUM MOLYBDENUM STEELS
Remarks  1. As impurities Cu shall not exceed 0.30% throughout all classes
JIS G 4104 (1979) CHROMIUM STEELS
Remarks : As impurities Ni and Cu shall not exceed 0.25% and 0.30% respectively throughout all classes
JIS G 4105 (1979) CHROMIUM MOLYBDENUM STEELS
Remarks : As impurities Ni and Cu shall not exceed 0.25% and 0.30% respectively throughout all classes
JIS G 4106 (1979) MANGANESE STEELS AND MANGANESE CHROMIUM STEELS FOR MACHINE STRUCTURAL USE
Remarks : As impurities Ni and Cu shall not exceed 0.25% and 0.30% respectively throughout all classes SMn 420,SMn 433,SMn 438 and SMn 443 shall not contain Cr exceeding 0.35%
JIS G 4107 (1977) ALLOY STEEL BOLTING MATERIALS FOR HIGH TEMPERATURE SERVICE
Table 3 CHEMICAL COMPOSITION (LADLE ANALYSIS)
Table 4 CHEMICAL COMPOSITION(PRODUCT ANALYSIS)
JIS G 4108 (1977) ALLOY STEEL BARS FOR SPECIAL APPLICATION BOLTING MATERIALS
Table 2 CHEMICAL COMPOSITION (LADLE ANALYSIS)
JIS G 4108 (1977) ALLOY STEEL BARS FOR SPECIAL APPLICATION BOLTING MATERIALS
Table 3 CHEMICAL COMPOSITION (PRODUCT ANALYSIS)
JIS G 4202 (1979) ALUMINIUM CHROMIUM MOLYBDENUM STEELS
Table 2 CHEMICAL COMPOSITION (LADLE ANALYSIS)
Remarks : As impurities Ni and Cu shall not exceed 0.25% and 0.30% respectively throughout all classes
JIS G 4303 (1981) STAINLESS STEEL BARS
Table 7 chemical composition for Austenitic Bars
Table 8 chemical composition for Austenitic Bars
Remarks- SUS XM 15J1 may be added alloying elements other than those in the above table as required  SUS303-0.60% or less of Mo may be added,SUS303 Se- Se- 0.15 minimum,SUS304N2- Nb- 0.15 max,SUS 347- Nb-10XC% min,SUS 321- Ti-5XC % min
JIS G 4303 (1981) STAINLESS STEEL BARS
Table 9 Chemical Composition for Ferritic Bars
Note: SUS 430F-0.60% or less of Mo may be added Each grade other than SUS 447 J1 and SUS XM27 may contain 0.60% or less of Ni SUS447J1 and SUS XM @& may contain 0.50% or less of Ni, 0.20% or less of Cu and 0.50% or less of Ni + Cu and as required may be added alloying elements other than those in the above table
Table 10 Chemical Composition for Martensitic Bars
Note:-3– 0.60% or less of Ni may be added,-4– 0.60% or less of Mo may be added,-5– 0.75% or less of Mo may be added
Table 11 Chemical Composition for Precipitation hardening Bars
JIS G 4311 (1981) HEAT - RESISTING STEEL BARS
Table 5 Chemical Composition for Austenitic Bars
Remarks: Other Elements in given below grade SUH 38- Boron- 0.001/0.010, SUH- 660- Ti- 1.90/2.35% and  Boron-0.001/0.010 SUH 661- Nb- 0.75/1.25%Â
Table 6 Chemical Composition for Ferritic Bars
Remarks: 0.30% or less of Cu may be contained 0.60% or less of Ni may be contained
Table 7 Chemical Composition for Martensitic Bars
Remarks: 1 in Nickel column  represent 0.60% or less of Ni may be contained 0.30% or less of Cu may be contained
JIS G 4801 (1984) SPRING STEELS
Remarks: As impurities Cu content for each grade shall not exceed 0.30%
JIS G 4804 (1983) RESULPHYRIZED CARBON STEELS
Note : 1. As to silicon no requirement shall be provided as a rule. If the need arises, such range or limiting values as 0.10% and under 0.10 to 0.20% or 0.15 to 0.35% may be selected to be used by agreement between the manufacturer and purchaser. 2. When lead content is reported it shall be expressed by the range of 0.10 to 0.35 %
JIS G 4805 (1970) HIGH CARBON CHROMIUM BEARING STEELS
Note : 1. The steels shall not contain more than 0.25% of Ni and Cu respectively as impurites except that Cu in wire steel shall not exceed 0.20% SUJ 1, SUJ 2 and SUJ 3 shall not contain more than 0.080 % of Mo 2. Not more than 0.25% of elements other than those specified in Table 2 may be added 3.When steel worked in the acid furnaces the steels may contain P and S up to 0.030% respectively and SUJ 1,SUJ 2,and SUJ 4 may contain Si up to 0.40%
