Standard: ASTM, AISI, DIN, EN, GB, JIS
Technique: Hot Rolled/Cold Rolled/Galvnized
Processing Service: Welding, Punching, Cutting
Available Size Range: Click here
Get A QuoteUNS S34565 is a super austenitic stainless steel.
Chemical Composition
| Element | Composition (%) |
| Iron (Fe) | 43.2 - 51.6 |
| Chromium (Cr) | 23 - 25 |
| Nickel (Ni) | 16 - 18 |
| Manganese (Mn) | 5.0 - 7.0 |
| Molybdenum (Mo) | 4.0 - 5.0 |
| Silicon (Si) | 0 - 1.0 |
| Nitrogen (N) | 0.4 - 0.6 |
| Niobium (Nb) | 0 - 0.1 |
| Carbon (C) | 0 - 0.030 |
| Phosphorus (P) | 0 - 0.030 |
| Sulfur (S) | 0 - 0.010 |
Mechanical Properties
| Property | Value |
| Tensile Strength: Ultimate (UTS) | 900 MPa (130 x 10³ psi) |
| Tensile Strength: Yield (Proof) | 470 MPa (68 x 10³ psi) |
| Elongation at Break | 39% |
| Reduction in Area | 45% |
| Brinell Hardness | 200 |
| Rockwell B Hardness | 88 |
| Shear Strength | 610 MPa (89 x 10³ psi) |
| Fatigue Strength | 400 MPa (58 x 10³ psi) |
| Elastic (Young's, Tensile) Modulus | 210 GPa (30 x 10⁶ psi) |
| Shear Modulus | 80 GPa (12 x 10⁶ psi) |
| Poisson's Ratio | 0.28 |
Standard Specifications
| Country/Region | Standard | Specification |
| USA | ASTM A276 | Cold-finished or hot-finished bars in S34565 stainless steel, available in form of rounds, square, hexagons and other hot rolled extruded shapes. |
| USA | ASTM A182 | Forging material specification for S34565 grade stainless steel used for manufacturing bare forgings or forged and machined products for applications involving high temperature service. |
| Europe | EN 1.4162 | X2CrNiNb18-10. |
Popular Grades
•Alloy 24: It is the common industry name for UNS S34565.
•F49: Another common designation for this material.
Popular Questions and Answers
Q: What are the main alloying elements in UNS S34565 and what are their functions?
A: The main alloying elements include chromium (Cr), nickel (Ni), manganese (Mn), and molybdenum (Mo). Chromium provides corrosion resistance. Nickel enhances the alloy's toughness and ductility at low temperatures. Manganese improves ductility at elevated temperatures and allows for a higher nitrogen content. Molybdenum further enhances corrosion resistance, especially in chloride-containing environments.
Q: What are the advantages of UNS S34565 compared to other stainless steels?
A: Compared to some common stainless steels, UNS S34565 has higher strength and better corrosion resistance, especially in harsh corrosive environments such as seawater and acidic solutions. It also has good ductility and toughness, making it suitable for various processing and application requirements.
Q: In which industries is UNS S34565 widely used?
A: It is widely used in the chemical processing industry for handling aggressive chemicals, such as in heat exchangers, valves, and pipelines. In the marine environment, it is used for ship components, offshore platforms, etc. It is also used in the food processing industry, power generation, pollution control, automotive and aerospace industries, etc..
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