Nextgen Steel & Alloys is a producer that supply UNS S31803 Buttweld Fittings. A buttweld fitting is a weldable pipe fitting that allows for change of direction of flow, to branch off, reduce pipe size or attach additional equipment.Our fittings are selected for various applications with different specifications depending on system necessity. It includes a variety of types of fittings like reducers, outlets, elbows, caps, tees, etc. These elbows are used to change the direction of the run pipe and reducer is used to reduce the pipe size from big to small. End caps are used to protect ends of the pipe. Tee is also a types of these fittings which is used to divide the flow and used to connect pipes with different diameters. These UNS S31803 Buttweld Fittings are used in different applications such as gas processing, heat exchangers, chemical and pharmaceutical equipment, Seawater pumps and valves piping, heat exchangers, Pulp mill digesters, bleach washers, etc.
Nextgen Steel & Alloys propose duplex grade that is UNS S31803 Buttweld Fittings with excellent mechanical characteristics and superior stability to chloride pitting and crevice corrosion. Thus these fittings are excellently anti-corrosive and it is offered with the facility of custom-value designed specifications on the order of the purchaser. Our fittings are excellent surface finished allowing smooth flow through it. It is widely used in piping systems; thus, the structure ought to leak proof.
UNS S31803 Buttweld Fittings are tough to withstand high-temperature systems and protects from corrosion during the heat. In addition, these fittings are well crevice and crack resistant to avoid damage in high-stress systems. Thus it is recommended for upper thermal ranges as well as loaded system applications. Our fittings are ideal due to its high-value tensile strength with greater flexibility and weldability.
UNS S31803 is ferrite austenitic steel, also recognized as Duplex Steel. It is composed of 40 to 50 percent Ferrite adding high Chromium and Molybdenum and sufficient Nickel value. Also, other basic alloy forming elements are present in adequate quantity. Duplex grades have two phases in their metallurgical construction specially designed to enhance corrosion resistance and strength.
Duplex Steel S31803 Buttweld Fittings Specifications
ASTM A815/ ASME SA815
Duplex Steel S31803 Butt Weld Fittings Dimensions
ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Duplex Steel S31803 Buttweld Fittings Size
Seamless Butt Weld Fittings : 1/2" - 10" / Welded Butt Weld Fittings : 1/2" - 48" (Seamless & 100% X-Ray Welded, Fabricated)
Duplex Steel S31803 Buttweld Fittings Type
Seamless / Welded / Fabricated (DN15-DN1200)
Duplex Steel S31803 Buttweld Fittings Bending Radius
R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Duplex Steel S31803 Butt Weld Fittings Thickness
Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Duplex Steel S31803 Buttweld Fittings Manufacturing process
Push, Press, Forge, Cast, etc.
Duplex Steel S31803 Buttweld Fittings Test Certificates
EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report etc.
Grade | DIN | UNS |
DSS S31803 | 1.4462 | S31803 |
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 |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
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