904L stainless steelUNS라고도 함 N08904 및 W.Nr. 1.4539, is a high-alloy austenitic stainless steel with excellent corrosion resistance in aggressive environments. Its high levels of chromium, nickel, molybdenum, and copper make it highly resistant to sulfuric acid, chloride-induced pitting, and crevice corrosion.
904L is widely used in chemical processing, oil and gas, seawater systems, and pharmaceutical industries. It offers strong performance in acidic and chloride-rich environments, making it an ideal material for heat exchangers, piping, tanks, and components requiring durability and corrosion resistance.
| 요소 | % Present (in product form) |
| 탄소 (C) | 0.02 |
| 규소 (Si) | 0.7 |
| 망가니즈 (Mn) | 2 |
| Phosphorous (P) | 0.03 |
| 황 (S) | 0.01 |
| 크롬 (Cr) | 19.00 – 21.00 |
| 니켈 (Ni) | 24.00 – 26.00 |
| 질소(N) | 0.15 |
| 몰리브덴 (Mo) | 4.00 – 5.00 |
| 구리 (Cu) | 1.20 – 2.00 |
| 철 (Fe) | 밸런스 |
| 비열(0-100°C) | 450 | J.kg-1.°K-1 |
| 열전도율 | 11.5 | W.m -1.°K-1 |
| 열팽창 | 15.8 | μm/μm/°C |
| 모듈러스 탄성 | 190 | GPa |
| 전기 저항률 | 9.52 | Ohm-cm |
| 밀도 | 7.95 | g/cm³ |
| 성질 | 어닐링된 | |
|---|---|---|
| 인장 Rm | 71 | ksi(분) |
| 인장 Rm | 490 | MPa(분) |
| R.p. 0.2% 수율 | 32 | ksi(분) |
| R.p. 0.2% 수율 | 220 | MPa(분) |
| 연신율(2" 또는 4D 글라스) | 35 | %(분) |
| Seamless / Welded Pipe | ASTM A312 TP 904L |
| Seamless / Welded Tubing | ASTM A269 TP 904L |
| 바 / 막대 | ASTM A276 / A479 TP 904L |
| Forging | ASTM A182 F904L |
| 시트 / 플레이트 | ASTM A240 UNS N08904 |
| Welding Consumable | AWS A5.9 ER385 |
Standard product forms of 904L/N08904/1.4539 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at [email protected] 상세 정보를 위해
Korean 
English 
Japanese 
Arabic 
Spanish 
German 
Portuguese 
French 
Russian 
Italian