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Chainmill Industry is known as one of the professional steel pipe flanges manufacturers who can offer you various steel products at competitive price. And various sizes are available. You can choose the one you need.
Duplex steel pipe flanges-Chainmill’s competitive products
Since 2013,Chainmill Industry is committed to development and production of duplex steel flange.Unit now ,chainmill industry can produce the duplex steel S31803(2205) flanges and S32750(2507) flanges.
◇Compare to austenitic stainless steel flange, the advantage of duplex steel flange is as below
•The Yield strength of duplex steel flange is twice higher than austenitic stainless steel ,and also it has enough ductility to form.
•Duplex steel flange has excellent resistance to stress corrosion.It hard to handle to resistant corrosion for stainless steel flange in the chloride environment.However,duplex steel flange can be worked.
The introduction of duplex steel 2205(S31803) Flange
Duplex stainless steel 2205 (S31803)combine the best attributes of both austenitic and ferritic stainless steels and provide high strength with good corrosion resistance to corrosion (including stress corrosion cracking). This gives them a significant advantage over 316L and 317L stainless steels.
The chemical component of Duplex steel 2205 (S31803):
C≤0.030 Mn≤2.00 Si≤1.00 p≤0.030 S≤0.020 Cr 21.0～23.0 Ni 4.5～6.5 Mo2.5～3.5 N0.08～0.20
The Mechanical property of Duplex steel 2205(S31803):
| Tensile Strength ≥625MPA | Yield Strength ≥450MPA |
| Elongation ≥25 | Hardness ≤290HB |
The duplex steel 2205 (S31803)forged flange Chianmill Industry can offer as below:
•ASTM A182F51 UNS31803 Flange
•ASTM A182F51 UNS S32205 Flange
•ASTM A182F51 Welding Neck Flange
•ASTM A182F51 Slip-on Neck Flange
•ASTM A182F51 Lap Joint Flange
•ASTM A182F51 Socket Weld Flange
•Duplex steel 2205 forged Flange
•Duplex steel2205 Plate Flange
The Introduction of duplex steel 2507(S32750) Flanges
Duplex steel 2507(S32750) which is researched by FranceCL1,Swiss SANDVIK and England MATER+PLATT.The chemical component of these material is similar, but the content of tungsten and bronze is different.
The high chromium and Molybdenum content of Super Duplex Stainless makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid.It is also highly resistant to inorganic acids ,especially if they contain chlorides.
The Chemical Composition of 2507(S32750) flange
C≤0.030 Cr24.00~26.00 Cu≤0.5 Mn≤1.20 Mo3.00~5.00 N0.24~0.32 Ni6.00~8.00 P≤0.035,S≤0.020 Si≤0.80
The Mechanical Property of 2507(S32750)flange
•Tensile strength ≥116KSI（800Mpa）
•Yield strength ≥80KSI(550Mpa)
•Enlongation 15%
•Hardness ≤310
The duplex steel 2507(S32750) forged flange Chianmill Industry can offer as below:
•SAF2507 UNS32750 A182F53 Flange
•Super Duplex steel2507 Flange
•Super Duplex 2507 Flange
•Super Duplex 32750 Forged Flange
•A182F53 Slip-on Flange
•Super Duplex2507 Blind flange
•Super DuplexF53 Orifice Flange
•A182F53 Socket Welding Flange
•Super Duplex2507 Plate Flange
•Super Duplex UNS32750 SO Flange
•Super Duplex UNS32750 WN Flange
•SAF2507 Super Duplex BL Flange
•SAF2507 Super Duplex TH Flange
•SAF2507 Super Duplex SW Flange
The Application Area of duplex steel 2205(S31803) and 2507(S32750)flange
Chemical processing, transport and storage, Oil and Gas exploration and processing equipment, Marine and other high chloride environments, Pulp and paper digesters, liquor tanks and paper machines.
Chainmill Industry Service
•The minimum quantity of order: 10 pcs
•Brand name: CM
•Packing : plastic cap for each duplex steel flange ,then packed with plywood cases to invoice damage during transport.
4.Quality control:
•Raw materials is from famous plant like tsingshan, baosteel
•Inspection for each production process
•100% PT and UT for each flange
Delivery time: 7 days ~30 days.(according to the quantity of flange)
24 hours online service•Whatup:86-13764696806•QQ:290131805 •Skype:sue-feiting
