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UNS S31803 Round Bar


Duplex Steel UNS S31803 Round Bars are processed from the hold or cold forming operations. These are heat treated or hot worked. These are also annealed after hot working. The cold working operations are also performed that avoids brittleness and attain desired mechanical properties. Its structure also becomes non-magnetic in nature.
Duplex Steel UNS S31803 has higher weldability. This alloy can be welded with all sort of welding operations. These bars also perform excellently in the chemical containing environments such as are chlorides, halides, sulfides, sulfuric acids, nitric acids, phosphoric acids, etc.
Duplex Steel UNS S31803 Hex Bars also offer good service to local corrosive environments. It also performs well in the halide and chloride containing environments. It has great capability to resist pitting and crevice corrosion. Moreover, in the higher temperatures, it has great stability without any distortion and rupture.
These are highly used in Intergranular corrosive environments. In addition to alloying elements, its strength got increased even in the mild reducing environments.
Duplex Steel UNS S31803 Round Bars are offered in either tempered or quenched state. These are developed to offer outstanding welding features. It is the most economical option for engineering applications, due to its higher strength, durability, and functionality.

Primary test-
• Material test
• Positive material test
• Intergranular corrosion test
• Pitting corrosion test
• Radiography
• Ultrasonic test
• Chemical test
• Micro test
• Macro test

Secondary test-
• Mechanical test
• Strength test
• Buckling test
• Compression test
• Crushing test
• Thermal property analysis
• Hardness test

Test reports and documents:
• national board approval lab (NBAL) test report
• material test report
• Welding guide
• NABL test certificates
• fumigation certificates
• mill test report
• quality assurance plan
• heat treatment charts
• stamping details

To offer complete damage-free shipping we use industrial standard techniques. Duplex Steel UNS S31803 Square Bars are delivered in the form of bundles and rolled out in the thin film of plastic to prevent rusting and oxidation.

ASME SA276 UNS S31803 Round Bar Equivalent Grades
STANDARD WERKSTOFF NR. UNS
Duplex S31803 1.4462 S31803
Stock Size Range and Specifications For Duplex Steel UNS S31803 Round Bar

Specification : ASTM A276, A479 / ASME SA276, A479

Dimensions : ASTM, ASME and API

Size : 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length

Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc

Finish : Bright, Polish & Black

Chemical Composition of Duplex Steel UNS S31803 Bars
Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min

Mechanical Properties of Duplex / UNS S31803 / 1.4462 Round Bar
Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 7.805 0.285 1420 – 1465 2588 – 2669

Markings On The Duplex Steel UNS S31803 Round Bar

The full identification of the bars should be continuously marked down its whole length, including :

  •   Rating Designation
  •   Material Designation
  •   “WP” in grade symbol
  •   Grade
  •   Schedule number or nominal wall thickness
  •   Heat Code
  •   Manufacturer’s Name or Symbol

Duplex Steel UNS S31803 Bars Application Industries
  •   Petrochemical Industry
  •   Chemical Industry
  •   Oil and Gas Industry
  •   Pulp & Paper Industry
  •   Power Plant Industry
  •   Food Processing Industry
  •   Pharmaceuticals Industry
  •   Energy Industry
  •   Aerospace Industry

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