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Material 1.4462
Duplex Superduplex
"The material 1.4462 is an austenitic ferritic stainless steel. The material belongs to the group of duplex steels. 1.4462 is the most popular and most commonly used duplex grade. The two-phase structure brings together the positive properties of austenitic and ferritic stainless steels. These properties are evident in the good Corrosion resistance and the high strength values.The material is widely used in the oil and chemical industry, in the construction industry, in shipbuilding, in mechanical engineering and in the paper and pulp industry.The Pren value for the material 1.4462 is between 30.85 and 38.07% .The Pren value indicates how corrosion-resistant stainless steel is to corrosion.The material is considered resistant to seawater from a Pren value of 32. The Pren value is calculated using the formula: %Cr + 3.3XMo + 16x%N . 1.4462 has a density of 7.8 (g/cm³)."
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Standards
| HDIN / EN | US-Standard | AFNOR | UNI | JIS | request |
|---|---|---|---|---|---|
| X2CrNiMoN22-5-3 | UNS S31803 UNS S32205 UNS S39209 | SUS329J3L SUS329J3LTB SUS329J3LTP | request |
Material Category: Duplex Superduplex
Applications
1.4462 is often used in the following industrial areas.
- Oil and gas
- Pressure vessel
- paper industry
- Hydropower
- Chemistry
Heat Treatment
solution annealed
Weldability
1.4462 is very easy to weld.
Chemical Composition
| C % | Si % | Mn % | P % | S % | Cr % | Mo % | N % | Ni % |
| max 0,03 | max 1,00 | max 2,00 | max 0,035 | max 0,015 | 21,00 - 23,00 | 2,50 - 3,50 % | 0,100 - 0,220 | 4,50 - 6,50 |
Product Specifications
DIN EN 10028-7, DIN EN 10088-5, DIN EN 10250-4
DIN EN 10088-2, DIN EN 10216-5, DIN EN 10263-5
DIN EN 10088-3, DIN EN 10217-7, DIN EN 10270-3
DIN EN 10088-4, DIN EN 10222-5, DIN EN 10272
ASTM A276, ASTM A479, ASTM A182
NACE MR0175, NACE MR0103, NORSOK M630 MDS D41/D43/D44/D45/D47
Mechanical Properties
| 1.4462 Flat products made of pressure vessel steels . Stainless steel | |||
Value Rp 0,2 | Samples | Temperature | |
| >=422 N/mm² | lengthwise | ~ 50 C° | |
| >= 422 N/mm² | crosswise | ~ 50 C° | |
| >= 360 N/mm² | lengthwise | ~ 100 C° | |
| >=360 N/mm² | crosswise | ~ 100 C° | |
| >= 335 N/mm² | lengthwise | ~ 150 C° | |
| >= 335 N/mm² | crosswise | ~ 150 C° | |
| >= 315 N/mm² | lengthwise | ~ 200 C° | |
| >= 315 N/mm² | crosswise | ~ 200 C° | |
| >= 300 N/mm² | lengthwise | ~ 250 C° | |
| >= 300 N/mm² | crosswise | ~ 250 C° | |
| Tensile strength (Rm) | |||
| >= 621 N/mm² | ~ 50 C° | ||
| >= 590 N/mm² | ~ 100 C° | ||
| >= 550 N/mm² | ~ 200 C° | ||
| >= 540 N/mm² | ~ 250 C° | ||
| Hot rolled sheet, solution annealed | |||
| Dimension | Yield Stress (RP 0,2) | Samples | Temperature |
| <= 75 mm | >= 445 N/mm² | lengthwise | ~ 20 C° |
| <= 75 mm | >= 460 N/mm² | crosswise | ~ 20 C° |
| Tensile strength (Rm) | |||
| <= 75 mm | 640 - 840 N/mm² | ~ 20 C° | |
| Elongation A5 % | |||
| 3 - 75 mm | >= 25 % | lengthwise | ~ 20 C° |
| 3 - 75 mm | >= 25 % | crosswise | ~ 20 C° |
| Elongation (A 50 mm) | |||
| <= 3 mm | >= 25 % | lengthwise | ~ 20 C° |
| <= 3 mm | >= 25 % | crosswise | ~ 20 C° |
| Elongation (A 80 mm) | |||
| <= 3 mm | >= 25 % | lengthwise | ~ 20 C° |
| <= 3 mm | >= 25 % | crosswise | ~ 20 C° |
| Impact Test (ISO-V/CHARPY-V) | |||
| <= 75 mm | >= 40 Joule | crosswise | ~ 40 C° |
| <= 75 mm | >= 150 Joule | lengthwise | ~ 20 C° |
| <= 75 mm | >= 100 Joule | crosswise | ~ 20 C° |
| Stainless steel sheet and strip | Yield Stress (RP 0,2) | ||
| >= 360 N/mm² | ~ 100 C° | ||
| >= 335 N/mm² | ~ 150 C° | ||
| >= 315 N/mm² | ~ 200 C° | ||
| >= 300 N/mm² | ~ 250 C° | ||
| Hot rolled sheet, solution annealed | |||
| Dimension | Yield Stress (RP 0,2) | Samples | Temperature |
| < = 75 mm | >= 460 N/mm² | crosswise | ~ 20 C° |
| Tensile strength (Rm) | |||
| <= 75 mm | 640 - 840 N/mm² | ~ 20 C° | |
| Elongation A5 | |||
| >= 3 mm | >= 25 % | lengthwise | ~ 20 C° |
| >= 3 mm | >= 25 % | crosswise | ~ 20 C° |
| Elongation (A 50 mm) | |||
| <= 3 mm | >= 25 % | lengthwise | ~ 20 C° |
| <= 3 mm | >= 25 % | crosswise | ~ 20 C° |
| Bruchdehnung (A 80 mm) | |||
| <= 3 mm | >= 25 % | lengthwise | ~ 20 C° |
| <= 3 mm | >= 25 % | crosswise | ~ 20 C° |
| Impact Test (ISO-V/Charpy-V) | |||
| >= 10 mm | >= 100 Joule | lengthwise | ~ 20 C° |
| >= 10 mm | >= 60 Joule | crosswise | ~ 20 C° |
| Forgings for pressure vessels | Yield Stress (RP 0,2) | at Temperature | |
| >= 360 N/mm² | ~ 100 C° | ||
| >= 335 N/mm² | ~ 150 C° | ||
| >= 315 N/mm2 | ~ 200 C° | ||
| >= 300 N/mm² | ~ 250 C° | ||
| <= 350 mm | >= 450 N/mm² | ~ 20 C° | |
| Tensile strength (Rm) | |||
| >= 590 N/mm² | ~ 100 C° | ||
| >= 570 N/mm² | ~ 150 C° | ||
| >= 550 N/mm² | ~ 200 C° | ||
| >= 540 N/mm² | ~ 250 C° | ||
| <= 350 mm | 680 - 880 N/mm² | ~ 20 C° | |
| Elongation A5 % | Samples | Temperature | |
| <= 350 mm | >= 30 % | lengthwise | ~ 20 C° |
| <= 350 mm | >= 25 % | crosswise | ~ 20 C° |
| <= 350 mm | >= 25 % | tangential | ~ 20 C° |
| Impact Test (ISO-V/Charpy-V) | |||
| <= 350 mm | >= 200 Joule | lengthwise | ~ 20 C° |
| <= 350 mm | >= 100 Joule | crosswise | ~ 20 C° |
| <= 350 mm | >= 100 Joule | tangential | ~ 20 C° |
Material request