Duplex Steel and Engineering Company

Duplex Steel 31803 Buttweld Fittings

What are Duplex Steel 31803 Buttweld Fittings?

Duplex Steel 31803 Buttweld Fittings are high-performance components crafted from a specialized type of stainless steel renowned for its exceptional strength, corrosion resistance, and toughness. These fittings are widely used in industries such as chemical processing, oil and gas, and marine environments due to their superior performance in demanding applications.

Key Features of Duplex Steel 31803 Buttweld Fittings

  • Excellent Corrosion Resistance: Duplex Steel 31803 Buttweld Fittings exhibit exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for applications in harsh environments.
  • Superior Strength: These fittings offer a higher yield strength and tensile strength compared to traditional austenitic stainless steel flanges, ensuring durability and reliability in demanding conditions.
  • Excellent Weldability: Duplex Steel 31803 Buttweld Fittings are known for their excellent weldability, simplifying fabrication processes and reducing costs.
  • High Toughness: These fittings exhibit high toughness and ductility, making them suitable for applications requiring impact resistance.
Specifications ASTM A815 / ASME SA815, ASTM A182 & ASME SA182
Forged Fittings Standards ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Buttweld Fittings Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Buttweld Fittings Size 1/2” NB to 24″NB in. (Seamless & 100% X-Ray Welded, Fabricated)
Forged Fittings Size 1/8” NB to 4” NB (Socketweld & Screwed-Threaded)
Buttweld Fittings Type Seamless / Welded / Fabricated
Forged Fittings Type Socketweld Fittings, Screwed-Threaded Fittings
Forged Fittings Class 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Buttweld Fittings Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Buttweld Fittings Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS

Other Types Of Duplex Steel 31803 Buttweld Fittings

DSS Buttweld Elbow Duplex Steel Stub End
Duplex Steel Fittings Duplex Steel Socket weld Fittings
Duplex Steel Pipe Fittings Duplex Steel Industrial Fittings
Duplex Steel Forged Fittings Duplex Steel Threaded Fittings
Duplex Stainless Steel 90 Degree Elbow Buttweld Pipe Fittings
Duplex Stainless Steel Seamless Fittings Duplex Stainless Steel Welded Fittings
Duplex Half Couplings Duplex Concentric Reducer
ASME SA182 Duplex Steel Forged Fittings ASTM A815 Duplex Steel Butt weld Fittings
Duplex Stainless Steel Pipe Bend Duplex Steel Bushing
Duplex Steel High Pressure Forged Fittings Duplex Steel Threaded Plugs
ANSI B16.11 Duplex Steel Forged Fittings ANSI B16.9 Duplex Steel Pipe Fittings

31803 Buttweld Fittings Equivalent Grade

Grades EN UNS ISO
S31803 1.4462 S31803 4462-318-03-I

Duplex Steel 31803 Buttweld Fittings Chemical Composition

UNS Designation Type Composition, % B
C Mn P S Si Cr Ni N Mo Other Elements C
S31803 . . . 0.030 2.00 0.030 0.020 1.00 21.0-23.0 4.5-6.5 0.08-0.20 2.5-3.5 . . .

Duplex Steel 31803 Buttweld Fittings Mechanical Properties

UNS Designation Type Condition Tensile Strength, min, ksi [MPa] Yield Strength,A min, ksi [MPa] Elongation in 2 in. [50 mm] or 4D, min, % Reduction of Area, min, %B,C Brinell Hardness, max
S31803 . . . annealed 90 [620] 65 [450] 25 . . . 290

APPLICATION

  • Desalination Plants

  • Oil and Gas Industry

  • Pulp and Paper Industry

  • Chemical Processing

  • Water Treatment

  • Marine Applications

  • Construction

Duplex Steel and Engineering Company is a leading supplier of high-quality Duplex Steel 31803 Buttweld Fittings. We offer a wide range of sizes and specifications to meet your specific project requirements. Our commitment to quality and customer satisfaction ensures that you receive products that exceed your expectations.

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Duplex Steel And Engineering Company provides an extensive range of high-quality flanges designed for durability and precision. Our flanges ensure secure, leak-proof connections for various industrial applications.

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46/48, Jamnadas Bldg, Islampura Street, Mumbai-004

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