What is 1.4501 Stainless Steel?
1.4501, also known as UNS S32760, is a super duplex stainless steel that combines the benefits of both austenitic and ferritic structures. It offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, making it suitable for harsh environments such as chemical processing, oil and gas industries, and marine applications.
What material is 1.4501 equivalent to stainless steel?
1.4501 is a super duplex stainless steel, equivalent to UNS S32760 and ASTM A182 F55, commercially known as Zeron 100 or Alloy 32760. Due to its composition containing 25% chromium, nickel, molybdenum, copper, nitrogen, and tungsten, it possesses high strength and excellent corrosion resistance (especially resistance to pitting/stress corrosion cracking).
1.4501 stianless steel Chemical Composition (Specific for Bars)
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | W | PREN |
| Min. | 24,0 | 6,00 | 3,00 | 0,20 | 0,50 | 0,50 | 40 | |||||
| Max. | 0,030 | 1,00 | 0,025 | 0,010 | 1,00 | 26,0 | 8,00 | 4,50 | 0,30 | 1,00 | 1,00 |
PREN = % Cr+3.3 % Mo+16 % N ≥ 40
1.4501 stianless steel Mechanical Properties (Typical)
| Yield strength Rp0.2, MPa |
Tensile strength Rm, MPa |
Elongation [%] |
Hardness [HB] |
Impact, Charpy-V, -46ºC [J] |
|
| BAR | ≥ 550 | ≥ 750 | ≥ 25 | ≤ 300 | ≥ 65 |
| PLATE CR (COIL) | ≥ 550 | 750 – 1000 | ≥ 25 | ≤ 310 | ≥ 45 |
| PLATE HR (COIL) | ≥ 550 | 750 – 1000 | ≥ 25 | ≤ 310 | ≥ 45 |
| PLATE (QUARTO) | ≥ 550 | 750 – 930 | ≥ 25 | ≤ 310 | ≥ 45 |
1.4501 stianless steel Physical Properties
| Property | Value |
|---|---|
| Density | 0.285 lb/in³ (7.8 g/cm³) at 68°F (20°C) |
| Melting Range | 2525-2630°F (1385-1443°C) |
| Modulus of Elasticity at 68°F (20°C) | 29 × 10⁶ psi (200 GPa) |
| Thermal Conductivity at 68°F (20°C) | 15 W/m·K |
| Coefficient of Thermal Expansion (68-212°F/20-100°C) | 13.0 × 10⁻⁶ /K |
| Specific Heat at 68°F (20°C) | 500 J/kg·K |
| Electrical Resistivity | 0.80 Ω·mm²/m |
| Magnetic Permeability | <1.05 at 68°F (20°C) |
What industries commonly use 1.4501 stainless steel?
1.4501 stainless steel is widely used in chemical processing, oil and gas, marine applications, pulp and paper, and desalination plants due to its excellent resistance to corrosion and high strength.
What is the difference between 1.4501 and 304 stainless steel?
1.4501 offers superior corrosion resistance, particularly in chloride-rich environments, and is stronger than 304 stainless steel, making it ideal for more demanding applications.
Is 1.4501 stainless steel suitable for welding?
Yes, 1.4501 stainless steel can be welded with proper precautions to maintain its integrity and corrosion resistance.
Can 1.4501 stainless steel be used at high temperatures?
Yes, 1.4501 stainless steel maintains its strength and resistance to high-temperature corrosion, making it suitable for high-temperature applications.
What are the differences between 1.4501 and 1.4410 stainless steel?
1.4501 is a martensitic stainless steel optimized for high hardness, wear resistance, and heat-treatable strength, while 1.4410 is a duplex stainless steel with balanced austenitic-ferritic microstructure, offering better corrosion resistance (especially pitting and crevice corrosion) and higher toughness, but lower hardness. In short, 1.4501 is suited for mechanical, wear-focused applications, whereas 1.4410 is ideal for corrosion-critical and structural applications.
If you have project requirements for 1.4501 stainless steel bars, please feel free to place an order. GNEE has a large inventory of popular products for your selection. They can be processed into various practical product forms, including plates, coils, tubes, bars, and wires. For detailed chemical compositions and free samples, please contact our factory immediately. We offer competitive prices and excellent service.
Plates, Sheets, and Coils: ASTM A240, EN 10028-7, EN 10088-2, EN 10088-4, Norsok M-630 MDS D55
Bars and Forgings: ASTM A276, ASTM A479, ASTM A182, EN 10088-3, Norsok M-630 MDS D54/D57
Other Products: Compliant with applicable ASTM and/or EN standards and Norsok M-630 MDS standards
