We Piyush steel is the largest manufacturer, supplier and exporter of Duplex Steel UNS S31803 Flange in the global market. These flanges are provided in different specializations like standard, class, size range, surface finish, length, wall thickness, and end finish. As per the demand of the customers, we offer these flanges in a cut made specifications. These flanges are used in many applications in industries such as power generation, petrochemicals, gas processing, pharmaceutical, chemical equipment, and seawater equipment. We are manufacturing the flanges as per the specifications provided by our clients. All the parameters are strictly followed for the manufacturing of these flanges.
Duplex UNS S31803 is the most commonly used duplex grade in the global market. With a combination of its high mechanical strength, it has good resistance to localized and stress corrosion cracking. It contains 25% of chromium, 4% of molybdenum and 7% of a nickel alloy which results in the excellent resistance to crevice corrosion and chloride pitting corrosion attack.
Table Of Content
Attributes of the flanges
The characteristics of the flanges which makes them the highest preferable product in the market are-
It is our first and foremost motive to satisfy our customers’ needs and expectations regarding the product. We provide excellent quality of the flanges to our valuable clients. All the set standards regarding the quality of the product are followed. Our products have been appreciated by our clients for their good quality and various features.
Production of the flanges
Duplex Steel UNS S31803 Flanges are manufactured by the collection of the righteous quality of alloy. This alloy is well tested to avoid any type of poor quality of the material being mistakenly used in the development of the flanges. We have professional experts who look after the quality maintenance of the product by the employees. Moreover, these experts also encourage the employees to work in the direction to achieve the goal of the organization. The ranges are set up in accordance with the set of national and international quality standards and with the set of manufacturing norms.
Testing of the materials
As we are quality conscious, our product before dispatching moves through various tests. These tests are-
Test certification of the flanges
We provide various test certificates to our clients in accordance with the EN 10204/3.1b. They are-
We attach some documents along with the product delivered to our clients, the same is done to ensure them about the material been used in the manufacturing of the flanges. These documents are-
Packaging of the flanges
Duplex Steel UNS S31803 Flanges are packed in bundles and those bundles are covered with the environmental friendly poly bags to keep it safe in extreme weather conditions. To avoid rust during shipment these flanges are put in the wooden boxes, wooden crates, etc. All the information along with the shipment documents is attached to the wooden boxes to avoid doubts about the clients.
Delivery of the product
We have opted for a speedy transportation facility to deliver the product so that the delays created unnecessarily are avoided. We ensure the safe and secure delivery of the product without any damage and destruction in the quality of the flanges.
Specification : ASTM A182 / ASME SA182
Dimension Standard : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2" (15 NB) to 48" (1200NB)
Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
DIN Flanges : DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
JIS Flanges : JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS Flanges : BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.
|Duplex S31803||0.030 max||2 max||1 max||0.030 max||0.020 max||22 - 23||3 - 3.50||4.50 - 6.50||0.14 - 0.20||Bal|
|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 %|
The full identification of the flanges should be continuously marked down its whole length, including :
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