Carbon Steel & Alloy Steel

Main Materials: | S50C, SK, SCM, SNCM, etc |
Characteristics: | Parts to be required yield strength |
Main Applications: | General machine tools, agricultural machines, parts for bicycle |
Stainless Steel

Main Materials: | SCS13/14, equivalent to SUS303, etc |
Characteristics: | To be used under severe service conditions due to better corrosion resistance. |
Main Applications: | Parts for Automobile, food machinery, airplane, wheel, etc. |

Aluminum Alloy
Main Materials: | AC4C |
Characteristics: | Good process capability and machinability due to light bulk density. To be used for casings and cooling fins |
Main Applications: | Frame and casings, components for electronic and communication devices |
Others

Main Materials: | CAC502A, Co Alloy, etc |
Welcoming also your inquiry on the materials not to be mentioned bellow. |

Kinds of Steel | Type | Standard | Mechanical Property | Description | ||||
JIS | Foreign Standard |
HeatTreat- ment ![]() |
Tensile Strength kgf/mm2 |
Elong-ation % |
Hardness rockwell |
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Carbon Steel | 1%Sife | AMS 5210 | High permeability, Magnetic materials | |||||
S15C | *(S15C) | AISI 1015 | Q900 Q780 T180 | 55 | 30 | 35B | [Carbon Steel] contains 0.02![]() ![]() ![]() |
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S50C | *(S50C) | AISI 1050 | A Q850 T600 |
55 80 |
30 18 |
87B 23C |
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Carbon Tool Steel | SK3C | *(SK3) | A | <96B | This is high carbon steel included 0.6![]() |
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Alloy Tool Steel |
SKS3C | *(SKS3) | A | <96B | [Alloy Tool Steel] adds the elements Cr, Mo,V, Si, Mn, etc to a carbon tool steel, and depending upon the effect of the alloy element, the alloy tool steel will show various properties such as abrasion resistance, anti- deforming, anti-resistance and heat resistance so as to meet an application |
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SKD11C | *(SKD11) | A | <96B | |||||
SKD61C | *(SKD61) | AISI H113 | Q1000-1050 T540-650 |
>53C | ||||
Ni, Cr, & Mo Steel |
SNCM420C | *(SNCM420) | AISI 4320 | This alloy steel increases the hardenability by adding Mo to SNC steel and the brittle fracture of tempering is significantly improved . This alloy steel shows the strongest strength and the best flexibility . | ||||
Cr Alloy Steel | SCr445C | *(SCr445) | AISI 5147 | A Q850 T600 |
110 | 25 12 |
90B 34C |
This Cr alloy steel shows the effect in hardening, corrosion resistance, heat resistance, tempering resistance, oxidation resistance, abrasion resistance and has strong tackiness. |
Cr/ Mo Alloy Steel |
SCM415C | *(SCM415) | A Q880 Q850 T180 |
90 | 17 | 85B 26C |
This alloy steel shows good hardenability, strong tempering resistance and less brittle fracture, further, the forgeability, weld-ability and tackiness will be increased and the finish will be smooth. | |
SCM440C | *(SCM440) | AISI 4140 AMS 5338 |
A Q850 T500 T600 T650 T700 |
70 135 110 100 90 |
24 6 12 15 17 |
90B 41C 34C 30C 26C |
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Heat Resistance steel |
SCH13 | SCH13 | AISI 309 | >50 | >10 | |||
High Carbon Cr Alloy Bearing Steel |
SUJ2C | *(SUJ2) | AISI 52100 | A Q850 T600 |
75 120 |
20 4 |
95B 35C |
This alloy containing Cr contained 1 % of carbon and 1-2% of Cr. The cost is very low and it is very excellent in machinability, hardenability and durability. |
Stainless Steel |
SCS2 | SCS2 *(SUS420J1) |
AISI 420 | A Q980 T750 |
>60 | >18 | 20C | Martensitic stainless steel is for general structural parts requiring strength and corrosion resistance. This is a general standard of 13 Cr steel and its high hardness will be obtained through hardening. |
SCS2A | *(SUS420J2) | (AISI 420) | A Q950 T200 |
20C 45C |
High hardness will be obtained after hardening due to higher C contents than SCS2. | |||
SCS13 | SCS13 *(SUS304) |
AISI 304 | S1100 Quenchin | >45 | >30 | <90B | This is authenitic stainless steel and the representative steel of 18Cr-8Ni, and shows good properties for casting, corrosion resistance and weld ability. | |
SCS14 | SCS14 *(SUS316) |
AISI 316 AMS 5360 |
S1100 Quenchin | >45 | >30 | <90B | Oxidation resistance and corrosion resistance are better than SCS13 due to addition of Mo, and the strength against high temperature is also increased. | |
SUS303C | *(SUS303) | AISI 303 | S | >45 | >30 | <90B | (HB<187) Authenitic stainless steel with added S and P shows both good machinability and baking high properties, but corrosion resistance is inferior to SCS13. | |
SUS440C | *(SUS440C) | AISI 440C AMS 5352 |
A Q1050 T180 |
27C >58C |
Martensitic stainless steel 440C after hardening has the highest hardness among all stainless steels and also has good properties for corrosion resistance and abrasion resistance. | |||
Al alloy | AC4C | AC4C | Alcoa 356 SAE 323 AMS 4260 |
T6 | >23 >21 |
>3 >3 |
(HB abt.85) Mold test piece (HB abt.75) Sand mold test piece Ai-Si-Mg series show good properties for casting, pressure resistance and corrosion resistance |
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Cu alloy | CAC502A | (PBC2) | Phosphor bronze casting class II is good for abrasion resistance and corrosion resistance. |
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Co alloy | Stellite 12 | This alloy is mainly used for scissors of haircuts at barber and beauty saloon. |

*The word inside parenthesis shows the standard of rolled products. TOP▲
