253MA UNS S30815 Лист из жаропрочной нержавеющей стали
253MA UNS S30815 Лист из жаропрочной нержавеющей стали
Chinese Name: 253MA Heat-Resistant Stainless Steel
Grade: 253MA / S30815 / 1.4835
Type: Austenitic heat-resistant stainless steel (nickel-saving type)
Origin: Outokumpu (Sweden)
Standards: DIN/EN 1.4835, ASTM S30815, UNS S30815
Operating Temperature Range: 850°C–1100°C (up to 1150°C for non-pressure-bearing applications)
Key Features: Strengthened with rare earth (Ce) and nitrogen (N); exhibits superior oxidation, creep, sulfidation, and thermal fatigue resistance compared to 310S.
253MA was developed based on 21Cr-11Ni stainless steel through nitrogen alloying and the addition of the rare earth element cerium (Ce); the plate material is typically produced using the electroslag remelting (ESR) process.
253MA UNS S30815 Heat-resistant Stainless Steel Sheet Plate-Size
2 mm
3 mm
4 mm
5 mm
6 mm
8 mm
Hot-rolled plate
Cold-rolled thin sheet
253 MA stainless steel—-Similar grades
| UNS | AISI/ASTM | W.Nr |
| S30815 | 253Ma | 1.4835 |
253MA austenitic stainless steel —- chemical composition
| Alloy | % | nickel | хром | Fe | carbon | manganese | silicon | sulfur | nitrogen | cerium | phosphorus |
| 253MA | small | 10 | 20 | margin | 0.05 | — | 1.4 | 0.14 | 0.03 | ||
| large | 12 | 22 | 0.10 | 0.8 | 2.0 | 0.03 | 0.20 | 0.08 | 0.04 |
253MA Austenitic Stainless Steel – Physical Properties
| Плотность | 7.98g/cm? |
| Melting point | 1398～1420℃ |
253MA Austenitic Stainless Steel — Minimum Mechanical Properties of the Alloy at Room Temperature
| Прочность на разрыв Rm N/mm? | Предел текучести RP0.2 N/mm? | Ductility A5% | Твердость по Бринеллю HB |
| hot rolling | 450 | 180 | 35 | ≦210 |
Wide range of applications for 253MA:
Sintering equipment, blast furnace equipment, steel melting, furnaces and continuous casting equipment, rolling mills (reheating furnaces), heat treatment furnaces and accessories, mineral processing equipment, cement production equipment, etc.
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