Duplex Stainless Steel Casting

We specialize in the customized production of duplex stainless steel castings. Our manufacturing capability of duplex stainless steel casting weight ranges from 1g to 220kg. The maximum overall size of casting is 1,000mm * 620mm * 380mm. The minimum wall thickness is 0.5mm.

We maintain proactive communication with our customers to assure that we fully understand our customers’ requirements and produce parts with the desired characteristics in the most cost effective manner.

If you are looking for duplex stainless steel casting, get in touch today and we will provide you with an accurate quote and our best services.

duplex stainless steel casting submersible pump parts

General Duplex Stainless Steel Information

Duplex Stainless Steel 2205 is the most widely used duplex stainless steel grade. Also Known as: UNS: UNS S31803 – UNS S32205; SAF: SAF 2205® 22Cr; ASME SA-182 (F51), SA-182 (F60), SA-240, SA-798, SA-790, SA-815; ASTM A182 (F51), A182 (F60), A240, A276, A479, A480, A789, A790, A815, A928, A988; SAE J405

Duplex Stainless Steel 2205 is also called as Duplex 2205. The term of “Duplex” means that the steel consists of a two-phase microstructure — both ferritic stainless steel and austenitic stainless steel. Nitrogen is enhanced in Duplex 2205 comparing to other duplex stainless steel.

The Advantage of Duplex Stainless Steel Casting:

It combines the benefits of ferritic alloy (which provides high strength & stress corrosion cracking resistance)  and  austenitic alloy (which provides corrosion resistance & easy on fabrication.

Corrosion Resistance:

Duplex Stainless Steel 2205  is very cost-effective for various applications that require corrosion resistance. The combination of chromium, molybdenum and nitrogen provides good resistance to crevice corrosion and chloride pitting. Corrosion resistance is highly important for applications in marine environments, bleaching operations,  and food processing etc.

Chemical Composition of Duplex Stainless Steel 2205
Cr Ni Mo C N
22.0-23.0 4.50-6.50 3.00-3.50 0.030 Max 0.14-0.20
Mn Si P S Fe
2.00 Max 1.00 Max 0.030 Max 0.020 Max Balance
Mechanical Properties of Duplex Stainless Steel 2205
Grade Tensile Strength
ksi (min)
Yield Strength
0.2% ksi (min)
Elongation (%) Hardness (HB) MAX
2205 90 65 25 217

Characteristics of 2205 Duplex Stainless Steel Casting:

  • High Strength
  • Great resistance to chloride crevice and pitting corrosion
  • Great resistance to chloride stress corrosion cracking
  • Good resistance to sulfide stress corrosion resistance
  • Good general corrosion resistance

Applications of 2205 Duplex Stainless Steel Casting:

  • Chemical process vessels, heat exchangers and piping
  • Oil field piping and heat exchangers
  • Bleach washers, chip pre-steaming vessels and pulp mill digesters,
  • Flue gas desulfurization equipment
  • Food processing equipment

Duplex Stainless Steel Casting Parts