Stainless steel is a special steel featuring a splendid surface and good resistance to rust. As a high value-added product, stainless steel can be used for diverse areas without requiring any additional treatment.
This product specification is subject to change, so please check the latest specifications when ordering or consult with the person in charge.
Austenite
| Type | Chemical Composition (%) | Mechanical Properties | Physical Properties | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KS(JIS) | POSCO | C | Cr | Ni | Mo | Others | Yield Strength (0.2%) (N/mm² |
Tensile Strength (N/mm²) |
Elongation (%) | Hardness (Hv) | Specific Heat J/g °C | Specific Gravity | Thermal Expansion Coefficient W/m·°C (20-100°C) |
Thermal Conductivity W/m·°C (100°C) |
| 301 | 301 | ~0.15 | 16.0~ 18.0 | 6.00~ 8.00 | - | - | 205~ | 520~ | 40~ | ~218 | 0.50 | 7.93 | 16.9 | 16.3 |
| 301L | 301L | 0.030 | 16.0~ 18.0 | 6.00~ 8.00 | - | N ~0.2 |
215~ | 550~ | 45~ | ~218 | 0.50 | 7.93 | 16.9 | 16.3 |
| 304 | 304 | 0.08 | 18.0~ 20.0 | 8.00~ 10.50 | - | - | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.93 | 17.3 | 16.3 |
| 304L | 304L | ~0.030 | 18.0~ 20.0 | 9.00~ 13.00 | - | - | 175~ | 480~ | 40~ | ~200 | 0.50 | 7.93 | 17.3 | 16.3 |
| 304LN | 304LN | ~0.030 | 17.0~ 19.0 | 8.5~ 11.5 | - | N 0.12~0.22 | 245~ | 550~ | 40~ | ~200 | 0.50 | 7.93 | 17.3 | 16.3 |
| 304N1 | 304N1 | ~0.08 | 18.0~ 20.0 | 7.00~ 10.50 | - | N 0.10~0.25 | 275~ | 550~ | 35~ | 220~ | 0.50 | 7.93 | 17.3 | 16.3 |
| 304J1 | 304J1 | 0.08 | 15.0~ 18.0 | 6.0~ 9.0 | - | Cu 1.0~3.0 | 155~ | 450~ | 40~ | ~200 | 0.50 | 7.93 | 17.3 | 16.3 |
| 305 | 305EG | 0.08 | 15.0~ 17.0 | 13.0~ 15.0 | - | - | 175~ | 480~ | 40~ | ~200 | 0.50 | 7.93 | 17.3 | 16.3 |
| 309S | 309S | 0.08 | 22.0~ 24.0 | 12.0~ 15.0 | - | - | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.98 | 15.9 | 14.2 |
| 310S | 310S | ~0.08 | 24.0~ 26.0 | 19.0~ 22.0 | - | - | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.98 | 15.9 | 14.2 |
| 316 | 316 | ~0.08 | 16.0~ 18.0 | 10.0~ 14.0 | 2.00~ 3.00 | - | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.98 | 15.9 | 16.3 |
| 316L | 316L | ~0.08 | 16.0~ 18.0 | 12.0~ 15.0 | 2.00~ 3.00 | - | 175~ | 480~ | 40~ | ~200 | 0.50 | 7.98 | 15.9 | 16.3 |
| 316LN | 316LN | ~0.03 | 16.5~ 18.5 | 10.5~ 14.5 | 2.00~ 3.00 | N 0.12~0.22 | 245~ | 550~ | 40~ | ~220 | 0.50 | 7.98 | 15.9 | 16.3 |
| 316Ti | 316Ti | 0.08 | 16.0~ 18.0 | 10.0~ 14.0 | 2.00~ 3.00 | Ti 5xC% ~ | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.98 | 15.9 | 16.3 |
| 317L | 317L | 0.03 | 18.0~ 22.0 | 11.0~ 15.0 | 3.00~ 4.00 | - | 175~ | 480~ | 40~ | ~200 | 0.486 | 7.98 | 16.5 | 14.4 |
| 321 | 321 | ~0.08 | 17.0~ 19.0 | 9.00~ 13.0 | - | Ti 5xC%~ | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.93 | 16.7 | 16.1 |
| 347 | 347 | 0.08 | 17.0~ 19.0 | 9.00~ 13.0 | - | Nb10xC%~ | 205~ | 520~ | 40~ | ~200 | 0.50 | 7.98 | 16.7 | 16.1 |
| XM15J1 | XM15J1 | ~0.08 | 15.0~ 20.0 | 11.50~ 15.0 | - | Si 3.0~5.0 | 205~ | 520~ | 40~ | ~218 | 0.50 | 7.75 | 13.8 | 16.3 |
Dual-Phase
| Type | Chemical Composition (%) | Mechanical Properties | Physical Properties | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KS(JIS) | POSCO | C | Cr | Ni | Mo | Others | Yield Strength (0.2%) (N/mm²) |
Tensile Strength (N/mm²) |
Elongation (%) | Hardness (Hv) | Specific Heat J/g °C | Specific Gravity | Thermal Expansion Coefficient W/m·°C (20-100°C) |
Thermal Conductivity W/m·°C (100°C) |
| 329J3L | 329J3L | ~0.03 | 21.0~ 24.0 | 4.5~ 6.5 | 2.5~ 3.5 | N 0.08~0.20 | 450~ | 620~ | 18~ | ~320 | 0.4 | 7.8 | 13.7 | 19.0 |
| 329LD | 329LD | ~0.03 | 19.0~ 22.0 | 2.0~ 4.0 | 1.0~ 2.0 | N 0.14~02 Mn 2.0~4.0 |
450 | 620~ | 25~ | ~310 | 0.52 | 7.71 | 13.2 | 16.5 |
Ferrite
| Type | Chemical Composition (%) | Mechanical Properties | Physical Properties | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KS(JIS) | POSCO | C | Cr | Ni | Mo | Others | Yield Strength (0.2%) (N/mm²) |
Tensile Strength (N/mm²) |
Elongation (%) | Hardness (Hv) | Specific Heat J/g °C | Specific Gravity | Thermal Expansion Coefficient W/m·°C (20-100°C) |
Thermal Conductivity W/m·°C (100°C) |
| 409L | 409L | 0.03 | 10.50~ 11.75 | - | - | Ti 6xC%~0.75 | 175~ | 360~ | 25~ | ~175 | 0.46 | 7.75 | 6.5 | 24.9 |
| - | HIPOS | ~0.03 | 12~14 | - | - | Si~1.3 | 175~ | 360~ | 22~ | ~180 | - | - | - | - |
| 410L | 410L | ~0.03 | 11.0~ 13.5 | - | - | - | 195~ | 360~ | 22~ | ~200 | 0.46 | 7.75 | 9.9 | 25.1 |
| - | 429EM | 0.020 | 13.0~ 15.0 | - | - | Si~1.5 | 205~ | 400~ | 25~ | ~180 | 0.456 | 7.62 | 10.6 | 20.9 |
| 430 | 430 | ~0.12 | 16.0~ 18.0 | - | - | - | 205~ | 450~ | 22~ | ~200 | 0.46 | 7.70 | 10.5 | 23.9 |
| 430J1L | 430J1L | ~0.025 | 16.0~ 20.0 | - | - | N~0.025 | 205~ | 390~ | 22~ | ~200 | 0.46 | 7.70 | 10.4 | 26.2 |
| 430Ti | 430Ti | ~0.02 | 19.5~ 20.5 | - | - | Ti 0.3~0.6 | 206~ | 422~ | 25~ | ~180 | 0.46 | 7.70 | 10.4 | 26.4 |
| 436L | 436L | ~0.025 | 16.0~ 19.0 | - | 0.75~ 1.5 | Ti, Nb, Zr 8x(C%+N%)~0.8 | 245~ | 410~ | 20~ | ~230 | 0.46 | 7.70 | 9.3 | 23.9 |
| - | 439 | 0.03 | 17.0~ 19.0 | - | - | Ti 0.2~1.0 | 175~ | 400~ | 22~ | ~175 | 0.46 | 7.70 | 10.5 | 26.4 |
| - | 441 | ~0.03 | 17.5~ 18.5 | ~1.0 | - | Si~1.0 Ti 0.1~0.6 Nb 9C+0.3~1.0 | 250 | 430~ 630 | 25~ | ~175 | 0.462 | 7.60 | 10.1 | 27.1 |
| 444 | 444 | ~0.025 | 17.0~ 20.0 | - | 1.75~ 2.5 | Ti, Nb, Zr 8x(C%+N%)~0.8 | 245~ | 410~ | 20~ | ~230 | 0.427 | 7.75 | 11.0 | 26.8 |
| - | 445NF | ~0.015 | 20.0~ 23.0 | ~0.5 | - | Ti+Nb 10(C+N)~0.6 | 245~ | 410~ | 22~ | ~200 | 0.44 | 7.74 | 10.5 | 23 |
| 446M | 446M | 0.015 | 25~ 28.5 | ~0.3 | 1.5~2.5 | Ti+Nb 8~(C+N) | 270~ | 430~ | 20~ | ~210 | 0.5 | 7.75 | 11.0 | 18.84 |
Martensite
| Type | Chemical Composition (%) | Mechanical Properties | Physical Properties | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KS(JIS) | POSCO | C | Cr | Ni | Mo | Others | Yield Strength (0.2%) (N/mm²) |
Tensile Strength (N/mm²) |
Elongation (%) | Hardness (Hv) | Specific Heat J/g °C | Specific Gravity | Thermal Expansion Coefficient W/m·°C (20-100°C) |
Thermal Conductivity W/m·°C (100°C) |
| 410 | 410 | ~0.15 | 11.5~ 13.5 | - | - | - | 205~ | 440~ | 20~ | 210~ | 0.46 | 7.70 | 9.9 | 24.9 |
| - | 410B | ~0.15 | 11.5~ 13.5 | 0.6 | - | - | 205~ | 440~ | 20~ | ~210 | 0.46 | 7.75 | 9.9 | 24.9 |
| - | 420N1 | ~0.17 | 12.0~ 14.0 | - | - | N~0.14 | 225~ | 520~ | 18~ | ~218 | 0.46 | 7.75 | 10.3 | 23.8 |
| 420J2 | 420J2 | 0.26~ 0.4 | 12.0~ 14.0 | - | - | - | 225~ | 540~ | 18~ | ~247 | 0.46 | 7.75 | 10.3 | 23.8 |
