Characteristics & Application
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Writer Admin HitHit 817 admin@domain.com Date 21-04-28 14:08본문
| Type | Chief components | Characteristics | application | series |
| STS 304 |
18Cr-8Ni |
-Most widely used -Corrosion resistance, heat-resistance, Good toughness at low-temperature -Good mechanical properties |
-home tableware, bathtub, indoor piping,
auto parts, construction materials, chemical industry, vessels |
Austenite |
| STS 304L |
18Cr-9Ni-Low C |
-Low-carbon version of 304 -Strict corrosion resistance -No heat treatment after welding |
-Storage equipment (Chemical, coal,
petro, medicine industries) -Heat resistance parts |
Austenite |
| STS 309S |
22Cr-13Ni |
-Good weldability with higher Cr and
Ni and lower C compared with 304 |
-Acetic acid tanks and other chemical
plant facilities, welding wire, muffler |
Austenite |
| STS 310S |
25Cr-20Ni |
-High Cr ratio -Excellent oxidation resistance and heat resistance |
-Acetic acid tanks and chemical plant
facilities, incinerators |
Austenite |
| STS 316 |
18Cr-12Ni-2.5Mo |
-Excellent oxidation resistance and
heat resistance |
-Manufacturing equipment for dyes,
paper-making, chemical fiber, synthetic resin, acetic acid,
fertilizer, photo industry -building materials of coastal zone |
Austenite |
| STS 316L |
18Cr-12Ni-2.5Mo-Low
C |
-Stress removed after welding -Great granular corrosion resistance after heat treatment -Suitable for use in parts that need not tempering |
-Fertilizer industry, Synthetic fiber
and paper industry |
Austenite |
| STS 317 |
18Cr-12Ni-3Mo |
-Improves acidresisting properties
with Mo higher then 316 -high-grade steel together with 310S -Suitable for use against poisonous substance |
-dyeing facilities, ink-making facilities
and petrochemical storage tanks |
Austenite |
| STS 321 |
18Cr-9Ni-Ti |
-Titanium-added steel with high resistance
against grain boundary corrosion -Suitable for use in high temperature in a range from 430~900 degree C. |
-Heat exchanger of Chemical plants, engine turbines, airplane, boiler cover and expansion joint |
|
| STS 410 |
13Cr |
-Great corrosion resistance &
weldability -Hardened by heat treatment -Difficult to endure corrosion environment |
-general use, knife material, machinery
parts, bolts and nuts |
Martensite |
| STS 420J1 |
13Cr |
High hardness and corrosion resistance
in quenched condition |
Knife, Turbineblade |
Martensite |
| STS 420J2 |
13Cr |
After quenching, higher hardness than
420J1 Javing magnetism |
Part, high hardness goods of scissors,
etc |
Martensite |
| STS 430 |
18Cr |
-Cheap & Good formability -Great oxidation resistance -Substitute for austenite series |
-Auto parts, heaters, electric appliance,
computer parts and various tanks, washing machines |
Ferrite |
| STS 409L |
11Cr-2Mo-Low-C |
-Low Carbon, Ti alloy steel -Great oxidation & heat resistance -Good formability & cheap |
-Automotive exhaust parts , heat-resisting equipment, plant facility parts, exterior for freezing container |
Ferrite |
| STS 436L | 18Cr-1Mo-0.3Ti-LCN | With less C, N and high Ti, Nb or Zr on 434, stee that improved processability and weldability | building materials, Auto parts, Auto parts of gas exhauster kitchen utensils water heater | Ferrite |