Working from home meant we could vary snack and coffee breaks.
Call Us: 080 41289810
info@dharanidhargroup.in
No. 3. DatturiRammana Lane, S.P Road Cross, Banglore - 560002
Or Fill Our FormDuplex alloys were originally created to combat corrosion problems caused by chloride-bearing cooling waters and other aggressive chemical process fluids.
Called Duplex because of its mixed microstructure with about equal proportions of ferrite and austenite, duplex stainless steels are a family of grades, which range in corrosion performance depending on their alloy content.
The chemical composition based on high contents of Cr and Mo, improves intergranular and pitting corrosion resistance, respectively. Additions of nitrogen can promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness. Moreover, the two-phase microstructure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steels.
Available forms are Duplex & Super Duplex Steel Seamless Pipe, Duplex & Super Duplex Steel Welded Pipe,Duplex & Super Duplex Steel Seamless Tube,Duplex & Super Duplex Steel Welded Tube,Duplex & Super Duplex Steel Round Bars,Duplex & Super Duplex Steel Welded Wire,Duplex & Super Duplex Steel Sheet,Duplex & Super Duplex Steel Plate,Duplex & Super Duplex Steel Forgings,Duplex & Super Duplex Steel Pipe Fittings and ,Duplex & Super Duplex Steel Flanges
UNS | Typeb | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
S31200 | - | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 24.0-26.0 | 5.5-6.5 | 1.20-2.00 | 0.14-0.20 | - |
S31260 | - | 0.03 | 1.00 | 0.030 | 0.030 | 0.75 | 24.00-26.00 | 5.5-7.5 | 2.5-3.5 | 0.10-0.20 | 0.20-0.80 |
S31803 | - | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | - |
S32001 | - | 0.030 | 4.0-6.0 | 0.040 | 0.030 | 1.00 | 22.0-23.0 | 1.00-3.00 | 0.60 | 0.05-0.17 | 1.00 |
S32205 | 2205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 19.5-21.5 | 4.5-6.5 | 0.14-0.20 | - | |
S32304 | 2304 | 0.030 | 2.50 | 2.50 | 0.030 | 1.00 | 21.5-24.5 | 3.0-5.5 | 0.05-0.60 | 0.05-0.20 | 0.05-0.60 |
S32520 | - | 0.030 | 1.50 | 0.035 | 0.035 | 0.80 | 24.0-26.0 | 5.5-8.0 | 3.0-4.0 | 0.20-0.35 | 0.50-2.00 |
S32550 | 255 | 0.04 | 1.50 | 0.040 | 0.030 | 1.00 | 24.0-27.0 | 4.5-6.5 | 2.9-3.9 | 0.10-0.25 | 1.5-2.5 |
S32760 | - | 0.030 | 1.00 | 0.030 | 0.010 | 1.00 | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.20-0.30 | 0.50-1.00 |
S32900 | 329 d | 0.06 | 1.00 | 0.040 | 0.030 | 0.75 | 23.0-28.0 | 2.5-5.0 | 1.0-2.0 | - | |
S32950 | - | 0.03 | 2.00 | 0.035 | - | - | - | - |