Super Duplex S32750 Bars are highly versatile and are used in various industries such as oil and gas, chemical, petrochemical, and many others. These bars have unique physical and mechanical properties that make them suitable for use in extreme environments. In this blog post, we will discuss everything you need to know about Super Duplex S32750 Bars, including their composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance. So, if you’re interested in learning more about this versatile material, keep reading!
What is Super Duplex S32750 Bars?
ASTM A479 UNS S32750 Hex Bar are bars made of stainless steel alloy that offer: higher strength than conventional austenitic stainless steels, superior corrosion resistance compared to most the other duplex alloys, good weldability and formability, and a combination of both improved yield strength and tensile strength. This makes them an ideal choice for applications in aggressive chloride-bearing environments as well as industries such as oil & gas production and chemical processing.
Composition of Super Duplex S32750 Bars
UNS S32750 Round Bar are made up of a combination of austenitic and ferritic stainless steels, which provides them with excellent corrosion resistance and high strength. The chemical composition of these bars includes 24-26% chromium, 3-5% molybdenum, 6-8% nickel, and a small amount of nitrogen. The nitrogen content in UNS S32750 Bar is higher than in standard duplex stainless steel, which gives them superior pitting resistance in chloride-containing environments. These bars also contain small amounts of other elements such as copper, silicon, and carbon for improved performance.
| Weight % | C | Si | Mn | S | P | Cr | Ni | Mo | Cu | N |
| Min. | 24,0 | 6,00 | 3,00 | 0,24 | ||||||
| Max. | 0,03 | 0,80 | 1,20 | 0,020 | 0,035 | 26,0 | 8,00 | 5,00 | 0,50 | 0,32 |
Physical Properties:
ASTM A276 F53 Duplex Round Bar have a density of 7.8 g/cm3, which is slightly higher than that of standard duplex stainless steel. They have excellent toughness and ductility even at low temperatures. These bars have a high thermal conductivity, which makes them useful in heat transfer applications. They also have a low coefficient of thermal expansion, which means they can withstand thermal shocks without deforming.
Mechanical Properties Super Duplex S32750 Bars
The mechanical properties of ASTM A276 F53 Duplex Bar are exceptional. They have a high yield strength of 550 MPa and an ultimate tensile strength of 800 MPa. This means they can handle high stress and strain without deforming or breaking. These bars also have superior fatigue resistance, making them ideal for applications that require cyclic loading. Super Duplex S32750 Bars have excellent machinability, which means they can be easily shaped and formed into various sizes and shapes.
|
Element
|
S32750
|
|
Tensile Strength(MPa)
|
795
|
|
Proof Stress 0.2% (MPa)
|
550
|
|
Elongation A5(%)
|
15
|
|
Hardness Max (HB-HRB)
|
310-32*
|
Super Duplex S32750 Bars Equivalent
| Name | WERKSTOFF NR. | UNS |
| Super Duplex F53 / 2507 | 1.4410 | S32750 |
Uses of Super Duplex S32750 Bars
Super Duplex UNS S32750 Bars are used in a wide range of applications due to their unique properties. They are commonly used in the oil and gas industry for piping, valves, and fittings. They are also used in chemical processing and petrochemical industries for heat exchangers, pressure vessels, and tanks. These bars are also used in marine and seawater applications due to their excellent corrosion resistance in saltwater environments.
Heat Treatment of Super Duplex S32750 Bars
Super Duplex S32750 Bars can be heat-treated to improve their mechanical properties. Solution annealing at 1020-1100°C followed by rapid quenching can increase the bars’ strength and toughness. However, these bars cannot be hardened by heat treatment. To avoid stress corrosion cracking, it is recommended that Super Duplex S32750 Bars are annealed after welding.
Corrosion Resistance of Super Duplex S32750 Bars
ASTM A479 UNS S32750 Hex Bar have excellent resistance to corrosion in a variety of environments. They are highly resistant to pitting and crevice corrosion in chloride-containing environments. They also have good resistance to stress corrosion cracking and corrosion fatigue. These bars have excellent resistance to sulfuric acid, hydrochloric acid, and other acidic environments.
Conclusion:
In conclusion, Super Duplex UNS S32750 Bars are a versatile material with exceptional physical and mechanical properties that make them ideal for use in extreme environments. Their unique composition and high strength make them suitable for use in various industries such as oil and gas, chemical, and petrochemical. These bars have excellent corrosion resistance and can withstand thermal shocks without deforming. If you’re looking for a material that can handle high stress and resist corrosion, Super Duplex S32750 Bars are an excellent choice.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
