By using 1.4462 (UNS S31803/ S32205 – F51 – SS2377) you get a stainless duplex steel that has high resistance to various types of corrosion. It has good weldability and can be welded by several methods. The steel is widely used e.g. for propeller shafts, pump parts and piston rods.
The steel grade 1.4462 (also called UNS S31803/ S32205 , F51 and SS2377) is a stainless acid resistant duplex steel with high strength and extremely good corrosion properties. Due to the duplex structure of the steel (austenitic-ferritic) and high contents of chrome and molybdenium it has very high resistance to pitting corrosion, crevice corrosion, uniform corrosion, corrosion fatigue and stress corrosion cracking. It also has high energy absorption and low thermal expansion.
Some typical application areas for 1.4462 are:
- Propeller- and Pumpshafting
- Pump- and Valveparts
1.4462 has good weldability and can be welded by most of the common welding methods e.g. Shielded metal arc welding, Gas tungsten arc welding, Plasma arc welding and Submerged-arc welding. You shall use Avesta Welding 2205 when you weld or something similar as filler metal. The steel can be both cold and hot formed. It is more difficult to machine than common austenitic steel. Machining shall be performed with high-speed tools.
The steelworks has certificate as an approved material supplier of this steel grade from ABS, BV, DNV, GL, Lloyd’s and RINA. 1.4462 is also an approved material according to NACE MR0175 which is an American standard within the oil- and gas industry.
We offer steel grade 1.4462 in the following profiles
Steel grade 1.4462 is available as machined round bar in dimensions 12 – 280 mm.
If there is something you miss or wonder about you can always contact us to discuss your needs.
Product data sheet 1.4462
If you need further information about the properties of the steel grade, machining and welding: