Malzeme 1.4410
Duplex Superduplex
1.4410 is an austenitic ferritic stainless steel. It belongs to the group of super duplex steels. Its two phased microstructuree combines the positive characteristics of austenitic and ferritic stainless steels. These characterisitcs result in a high corrosion-resistance and high stength values. 1.4501 is often being used if the resistance of grade 1.4462 is not sufficient enough. 1.4410 is often being used if the resistance of duplex steels is not sufficient enough. It can widely be found in the chemical industry, the oil industry, water management, on- and offshore industry, seawater desalination. The PREN-value of 1.4410 is ranged beetween 38 and 46%. The PREN-value indicates the corrosion-resistance of a stainless steel. Starting at 32% a steel is considered resistant against sea watter. The PREN-value can be reached with the formula: %Cr + 3,3xMo + 16x%N.
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Normen
| DIN / EN | US-Standard | AFNOR | UNI | JIS | istek |
|---|---|---|---|---|---|
| X2CrNiMoN25-7-4 | UNS S32750 ASTM A182F53 | istek |
Werkstoffgruppe: Duplex Superduplex
Kimyasal Bileşim
| C % | Si % | Mn % | P % | S % | Cr % | Mo % | N % | Ni % |
| max 0,03 | max 1,00 | max 2,00 | max 0,035 | max 0,015 | 24,00 - 26,00 | 3,00 - 4,50 | 0,240 - 0,350 | 6,00 - 8,00 |
Mekanik Özellikler
| DIN EN 10272 (10/2016) Stäbe aus nichtrostendem Stahl für Druckbehälter. | |||||||
| Stäbe | |||||||
| lösungsgeglüht | 0,2% Dehngrenze (Rp0,2) / bei Temperatur | Zugfestigkeit (Rm) | Bruchdehnung (A5, 65) | Härte [HBW] | Kerbschlagarbeit KV (ISO-V/Charpy-V) | Probenlage | bei Temperatur |
| <= 160 mm | >= 40 J | ~ -40 ° C | |||||
| <= 160 mm | >= 530 N/mm² | 730 - 930 N/mm² | >= 25 % | <= 290 HBW | >= 100 Joule | längs | ~ 20 ° C |
| >= 380 N/mm² | >= 630 N/mm² | ~ 250 ° C | |||||
| >= 400 N/mm² | >= 640 N/mm² | ~ 200 ° C | |||||
| >= 420 N/mm² | >= 660 N/mm² | ~ 150 ° C | |||||
| >= 450 N/mm² | >= 680 N/mm² | ~ 100 ° C | |||||
| lösungsgeglüht+kalt nachgezogen | Zugfestigkeit (Rm) | Bruchdehnung (A5, 65) | bei Temperatur | Probenlage |
| <= 160 mm | 930 - 1.130 N/mm² | >= 20 % | ~ 20 ° C | längs |
Malzeme talebi