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1.4462 Material Suppliers - 1.4410 Material Suppliers - 1.4462 Fittings, 1.4462 Flanges, 1.4462 Pipe, 1.4462 Plate, 1.4462 Sheet, 1.4462 Tube, 1.4462 Round Bar Suppliers India

Stainless Steel Duplex Fasteners Stainless Steel Buttweld Fitting Stainless Steel Flanges Stainless Steel Forged Flanges

1.4462 Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades. Duplex stainless steels are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels.

Whilst duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316.

1.4462 Duplex steels are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless. Property data given in this document is typical for flat rolled products covered by EN 10088-2:2005. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.

Alloy Designations

Grade 1.4462/2205 is similar to but may not be a direct equivalent:

  • UNS S31803
  • UNS S32205
  • BS 318S13

Grade 1.4462 Supplied Forms

Grade 1.4410 Supplied Forms

1.4462 Fittings 1.4410 bolts
1.4462 Flanges 1.4410 strip
1.4462 Pipe 1.4462 Fittings
1.4462 Plate 1.4410 forging
1.4462 Sheet 1.4462 Flanges
1.4462 Tube 1.4462 Pipe
1.4462 Round Bar 1.4462 Plate
  1.4462 Sheet
  1.4462 Tube
  1.4462 Round Bar

Stainless Steel 1.4462 Chemical Composition

Spec: EN 10088-2:2005

1.4462 Steel

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

Stainless Steel 1.4462 Properties

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

Spec: EN 10088-2:2005

Sheet - Up to 8mm thick

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

Spec: EN 10088-2:2005

Plate - over 8mm to 13.5mm Thick

Mechanical Property Value
Proof Stress 460 Min MPa
Tensile Strength 700 to 950 MPa
Elongation A50 mm 25 Min %

Spec: EN 10088-2:2005

Plate - Over 13.5mm to 75mm Thick

Mechanical Property Value
Proof Stress 460 Min MPa
Tensile Strength 640 to 840 MPa
Elongation A50 mm 25 Min %

Grade 1.4462 Applications

1.4462 Duplex stainless steels are typically used in:

  • ~ Chemical processing, transport and storage
  • ~ Oil and gas exploration and offshore rigs
  • ~ Oil and gas refining
  • ~ Marine environments
  • ~ Pollution control equipment
  • ~ Pulp & paper manufacturing
  • ~ Chemical process plant

Grade 1.4462 Corrosion Resistance

1.4462 Duplex stainless steels are extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulphide environments, duplex stainless steels exhibit very high resistance to stress corrosion cracking.

The super duplex grades are even more resistant to corrosion.


Grade 1.4462 Heat Resistance

The high chromium content of duplex stainless steels that protects against corrosion, causes embrittlement at temperatures over about 300°C.

At low temperatures duplex stainless steels have better ductility than the ferritic and martensitic grades. Duplex grades can readily be used down to at least -50°C.


Grade 1.4462 Fabrication

Fabrication of all stainless steels should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use. These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.


Grade 1.4462 Machinability

Although machinable, the high strengths of duplex stainless steels makes machining difficult. As an example, machining of 2205 is around 20% slower than for 304.

  • Machining can be enhanced by using the following rules:
  • ~ Cutting edges must be kept sharp. Dull edges cause excess work hardening.
  • ~ Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material.
  • ~ Chip breakers should be employed to assist in ensuring swarf remains clear of the work
  • ~ Low thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants and lubricants are necessary and must be used in large quantities.

Grade 1.4462 Heat Treatment

1.4462 Duplex stainless steels cannot be hardened by heat treatment. They can however be work hardened.

Solution treatment or annealing can be done by rapid cooling after heating to around 1100°C.


Grade 1.4462 Weldability

1.4462 Duplex stainless steels have good weldability. All standard welding processes can be used. They are not quite as easily welded as the austenitic grades but low thermal expansion in duplex grades reduces distortion and residual stresses after welding. The recommended filler material for 2205 stainless steel is 2209.

-----------> Stainless Steel 1.4462 Products

  • EN 1.4462 Stainless Steel Sheet
  • EN 1.4462 Stainless Steel Plate
  • EN 1.4462 Stainless Steel Flanges
  • EN 1.4462 Stainless Steel Bolts
    EN 1.4462 Stainless Steel Nuts
    EN 1.4462 Stainless Steel Screws
    EN 1.4462 Stainless Steel Washers
  • EN 1.4462 Stainless Steel Buttweld Fitting
  • EN 1.4462 Stainless Steel  Socketweld Fitting
  • EN 1.4462 Stainless Steel Round Bars
  • EN 1.4462 Stainless Steel Square Bar
  • EN 1.4462 Stainless Steel Flat Bars
  • EN 1.4462 Stainless Steel Hex Bars
  • EN 1.4462 Stainless Steel Bright Bars
  • EN 1.4462 Stainless Steel Black Bars
  • EN 1.4462 Stainless Steel Forged Bars
  • EN 1.4462 Stainless Steel Wire
  • EN 1.4462 Stainless Steel Seamless Pipe
  • EN 1.4462 Stainless Steel Welded Pipe
  • EN 1.4462 Stainless Steel Fabricated Pipe
  • EN 1.4462 Stainless Steel EFW Pipe
  • EN 1.4462 Stainless Steel ERW Pipe
  • EN 1.4462 Stainless Steel Round Pipe
  • EN 1.4462 Stainless Steel Square Pipe
  • EN 1.4462 Stainless Steel Rectangle Pipe
  • EN 1.4462 Stainless Steel Polish Pipe
  • EN 1.4462 Stainless Steel Seamless Tubes
  • EN 1.4462 Stainless Steel Welded Tubes
  • EN 1.4462 Stainless Steel Round Tubes
  • EN 1.4462 Stainless Steel Square Tubes
  • EN 1.4462 Stainless Steel Hollow Pipe
  • EN 1.4462 Stainless Steel Bush Pipe
  • EN 1.4462 Stainless Steel Tube Coil
  • EN 1.4462 Stainless Steel Electro Polish Tube

S32750 (1.4410) Super Duplex Stainless Steel MECHANICAL

Tensile Yield Elongation Hardness 
MPa min MPa min  % min  Brinell max 
795  550  15.25%  310 

S32750 (1.4410) Super Duplex Stainless Steel SPECIFICATIONS : Plate Size

THICKNESS (MM) PLATE SIZES (MM)
12000 x 2000     
6 12000 x 2000  12000 x 2500   
12000 x 2000  12000 x 2500  12000 x 3000 
10 12000 x 2000  12000 x 2500  12000 x 3000 
12  12000 x 2000  12000 x 2500  12000 x 3000 
15  12000 x 2000  12000 x 2500  12000 x 3000 
20  12000 x 2000   12000 x 3000 
25  8000 x 2000    6000 x 3000 
30  6000 x 2000    6000 x 3000 
35 4000 x 2000    6000 x 3000 
40  4000 x 2000    6000 x 3000 
45  4000 x 2000   6000 x 3000 
50  4000 x 2000    6000 x 3000 

S32750 (1.4410) Super Duplex Stainless Steel Properties

Chemical Analysis (% max or range).

CHEMICAL ANALYSIS (% MAX OR RANGE)    
Mn  Si  Cr  Ni Mo 
0.03  1.20 0.035  0.02  0.80 24.0-26.0  6.0-8.0  3.0-5.0  0.24-0.32 

S32750 (1.4410) Super Duplex Stainless Steel Grades

TYPE GRADE EN STEEL NUMBER UNS
Super Duplex S32750 1.4410 2507

 

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