duplex stainless steel 1.4462 equivalent

What is duplex stainless steel 1.4462?

1.4462 (X2CrNiMoN22-5-3) is a high-strength, austenitic-ferritic duplex stainless steel exhibiting excellent corrosion resistance. It possesses exceptional resistance to chloride pitting and crevice corrosion in seawater, and its strength is twice that of standard 316L stainless steel. It is commonly processed into various practical product forms,including plates, coils, tubes, bars, and wires,and is primarily utilized in oil and gas equipment, chemical vessels, marine structural components, and seawater desalination facilities.

 

What is the ASTM equivalent of 1.4462 duplex?

The primary ASTM equivalents for the German DIN 1.4462 duplex stainless steel are UNS S31803 and UNS S32205, often referred to as 2205 stainless steel. Specific ASTM standards include A182 F51/F60 (forgings), A240 (plates/sheets), and A276/A479 (bars). It is a 22% chromium duplex steel designed for high strength and corrosion resistance.

 

1.4462 chemical Composition

Chemical Element	% Present
Carbon (C)	0.0 - 0.03
Chromium (Cr)	21.00 - 23.00
Manganese (Mn)	0.0 - 2.00
Silicon (Si)	0.0 - 1.00
Phosphorous (P)	0.0 - 0.03
Sulphur (S)	0.0 - 0.02
Nickel (Ni)	4.50 - 6.50
Nitrogen (N)	0.10 - 0.22
Molybdenum (Mo)	2.50 - 3.50
Iron (Fe)	Balance

 

duplex stainless steel 1.4462  Mechanical

Mechanical Property	Value
Proof Stress	500 Min MPa
Tensile Strength	700 to 950 MPa
Elongation A50 mm	20 Min %

 

1.4462 duplex Physical Property

Physical Property	Value
Density	7.805 g/cm³
Thermal Expansion	13.7 x10^-6 /K
Modulus of Elasticity	200 GPa
Thermal Conductivity	19.0 W/m.K
Electrical Resistivity	0.085 x10^-6 Ω .m

 

What is the difference between 1.4462 and 316L?

1.4462 (Duplex 2205) is a high-strength duplex stainless steel; compared to 316L (> 170–205 MPa), its yield strength (> 450 MPa) is approximately double that of the latter, and it possesses exceptional corrosion resistance. It is suitable for applications in high-pressure marine and chemical environments. In contrast, 316L (an austenitic stainless steel) is better suited for applications requiring high ductility, ease of welding, and where cost sensitivity is a factor and corrosive conditions are less severe.

 

What is the difference between 1.4462 and 904L?

1.4462 (Duplex 2205) is a high-strength, duplex (austenitic-ferritic) stainless steel with superior stress corrosion cracking resistance, while 1.4539 (904L) is a high-alloy austenitic stainless steel designed for maximum corrosion resistance in severe acidic environments. 1.4462 boasts nearly double the yield strength of 316L, while 1.4539 excels in chemical processing with higher nickel and molybdenum.

 

Is 1.4462 magnetic?

Yes, it is strongly magnetic. Unlike 304 or 316 (austenitic), 1.4462 is a "Duplex" steel, meaning its microstructure is 50% Ferrite and 50% Austenite. The ferrite phase makes it ferromagnetic.

 

What is the welding filler for 1.4462?

The standard filler metal is ER2209 (or 22.9.3.L). It contains slightly more Nickel (approx. 9%) than the base 1.4462 to ensure the weld pool maintains the correct 50/50 balance of austenite and ferrite after cooling.

 

Is 1.4462 more expensive than 316L?

Yes, the price of 1.4462 (S32205) is typically higher than that of 316L. The price of 1.4462 is generally 1.5 to 2.5 times that of 316L; alternatively-depending on the specific product form and market conditions,it is approximately 20% to 40% higher.
Typical Prices (as of early 2026):
1.4462 (2205): $9–12/kg ($4,500–7,000/ton)
316L: $6–9/kg ($3,000–4,500/ton)

 

1.4462 (Duplex 2205) Stainless Steel Supplier

GNEE offers high-quality 1.4461 stainless steel in various product forms at wholesale prices. As a purchasing manager, you can find the best deals tailored to your industry's specific requirements. We provide a wide range of stainless steel grades-including plates and tubes-to meet your diverse needs. With our reliable supply chain and cost-effective solutions, we are a partner you can trust.

 

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1.4462 (Duplex 2205) Stainless Steel Specifications

Product Category	Specific Form	International Standards (EN / ASTM)	Typical Size Range
Flat Products	Hot Rolled Plate	EN 10088-2, ASTM A240	Thickness: 3.0mm – 100mm
	Cold Rolled Sheet	EN 10088-2, ASTM A240	Thickness: 0.3mm – 6.0mm
	Strip / Coil	EN 10088-2, ASTM A240	Width: 600mm – 2000mm
Tubular Products	Seamless Pipe	EN 10216-5, ASTM A790	OD: 6mm – 610mm (Sch 10 - XXS)
	Welded Pipe	EN 10217-7, ASTM A790/A928	OD: 12.7mm – 2000mm
	Instrumentation Tubing	EN 10216-5, ASTM A789	OD: 6mm – 38.1mm
Long Products	Round Bar	EN 10088-3, ASTM A276/A479	Diameter: 5mm – 500mm
	Hexagonal / Square Bar	EN 10088-3, ASTM A276	Size: 10mm – 100mm
	Flat Bar	EN 10088-3, ASTM A479	Width: 20mm – 300mm
	Wire Rod	EN 10088-3, ASTM A276	Diameter: 5.5mm – 25mm