F51 Duplex Stainless Steel Plate / UNS S31803 Sheet For Manufacturing Processing Machinery
Duplex stainless steel F51/S31803 Sheet for Manufacturing Processing Machinery
F51 stainless steel, also known as UNS S31803, is a duplex stainless steel that has the following characteristics:
- Two-phase structure: F51 stainless steel is composed of approximately equal parts ferrite and austenite phases. This structure gives the material a unique combination of properties.
- High strength: Compared with traditional austenitic stainless steel, F51 stainless steel has higher yield strength and tensile strength.
- Good corrosion resistance: F51 stainless steel has excellent corrosion resistance, especially in resisting pitting corrosion, crevice corrosion and stress corrosion cracking. This makes them suitable for use in highly corrosive environments such as marine environments and the chemical industry.
- Resistant to chloride corrosion: F51 stainless steel is particularly suitable for chloride-containing environments because chloride is a major corrosion factor in many traditional stainless steels.
- Good welding properties: F51 stainless steels generally have good welding properties, which makes them easier to process during construction and manufacturing.
- Lower coefficient of thermal expansion: Compared to austenitic stainless steels, F51 stainless steels have a lower coefficient of thermal expansion, which makes them more dimensionally stable under temperature changes.
- Higher creep resistance: In some high-temperature applications, F51 stainless steel has better creep resistance than austenitic stainless steel.
Due to these characteristics, F51 stainless steel is the material of choice in many industrial sectors such as chemicals, oil, gas, pulp and paper, and marine engineering.
| Grade | UNS | density | DIN | ||||
| F51 | S31803 | 7.8g/cm³ | W.Nr.1.4462 | ||||
| Chemical Composition(%) | Ni | Cr | C | Fe | Mn | Si | S |
| 4.5-6.5 | 21-23 | 0.3max | Remainder | 2max | 1max | 0.02max | |
| P | N | Mo | |||||
| 0.03max | 0.08-0.2 | 2.5-3.5 | |||||
| Physical Properties | Tensile Strength ( Mpa min) | Yield Strength ( Mpa min) | Reduction of Area ,min (%) | Elongation min(%) | Hardness (HRC) | ||
| 620 MPa min | 450 MPa min | …. | 25% min | HRC 24.2max | |||
DINGSCO
Hunan Dinghan New Material Technology Co., Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.We are dedicated to providing our customers with best quality products, fastest possible deliveries, most competitive prices of Nickel Based Corrosion Resistant and High Temperature alloys in bars, rods, forged flanges, valve parts (Ball, Stem, Seat Ring, etc), forged shapes (shafts, discs, blocks, hubs, rings, cylinders and other custom shapes) according to ASTM, ASME, API, AMS, NACE and other industry standards.
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- Monel, Incoloy, Inconel, Hastelloy
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- Round Bar, Ball, Stem, Ring, Flange, etc
- ISO9001, API-6A, API-20B, PED, NORSOK
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