Kanakratna Steelage Pvt. Ltd.
Kanakratna Steelage Pvt. Ltd.
Bhuleshwar, Mumbai, Maharashtra
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Duplex S31803

We are stockists of 31803 duplex alloys in sheet, plate, and bar directly distributed globally from our UK stockholding warehouse, combined with our large capacity cutting capabilities we can meet requirements for many industries.

The following are the properties of 31803:

  • Stainless ferritic-austenitic Cr-Ni-Mo steel with nitrogen addition.

  • High corrosion resistance, especially against stress corrosion cracking in solutions containing chloride.

  • Good strength properties.

  • Resistant to intergranular corrosion in the temperature range up to 300°C.

  • Heat treatment subsequent to welding not necessary.

  • Surface condition for optimum corrosion resistance: pickled, heat treated free from scale or machined.

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Duplex S31803 Fittings
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Duplex S31803 Fittings

Approx. Price: Rs 900 / PieceGet Latest Price
Product Details:
Size1/2 inch, 3/4 inch, 1 inch
ApplicationStructure Pipe, Hydraulic Pipe
TypeBrass, Steel
UsageIndustrial

Duplex S31803 Fittings offered finds application in different industry sectors including in the chemical industry, paper industry, seawater desalination plants, oil and gas production and others. These quality assured and high performance fittings are directly distributed to global customers from our UK stock holding warehouse. As leading and well recognized stockiest, these fittings also come with good strength properties as well as corrosion resistance. We can offer these in both standard and customized finish specifications.

 

Standards –

EN / DIN

ASTM

UNS

AFNOR

<1.4462 >
X2CrNiMoN22-5-3

A240

S31803

Z2CND22-5 Az

Hot Forming –

Forging

1200 to 950°C / Air cooling

Heat Treatment –

Solution annealing

1020 to 1100°C Water , air (thickness below 2mm)

 

Structure –

Ferrite + Austenite

 

Mechanical Properties:

 

Condition: solution annealed –

Product

Dimension
Size
mm

0.2% proof stress
N/mm2
min.

Tensile strength
N/mm2

Elongation A5
% min.
L Q T

Impact strength
(ISO-V)
J min.
L Q T

St

≤ 160

450

650 – 880

25 - – - -

100 - – - -

Bl

≤ 75

460

640 – 840

252) 252) - -

90 60 - -

St = Bar

Bl = Sheet or plate

L = Longitudinal, Q = Transverse, T = Tangential

1) For sheet or plate < 3mm = A80mm specimen

2) The values for other products and dimensions shall be established by agreement.


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