ASTM A182 UNS S31803 Blind Flanges

ASME SA182 BLRF Flange Manufacturer in India

Nitron Alloys Overseas is one of the leading manufacturers, exporter and suppliers of all types of Flanges. We are offering all types of Flanges in different grades of Duplex Steel. We fabricate Duplex Steel UNS S31803 Blind Flanges in all suitable materials and grades. By following all industrial and international standards, we are producing high-grade Duplex Steel UNS S31803 Blind Flanges. Our excellent quality Blind Flanges are widely used in many industrial sectors to complete various applications. Our Duplex Steel UNS S31803 Blind Flanges has many unique attributes like robustness, accurate size, precise design, smooth performance, longer service life, and corrosion-proof. We are offering these premium quality Blind Flanges in the different specifications and dimensions. We also fabricate these Flanges as per the demanded specifications from our esteem clients.


Our high-grade Duplex Steel UNS S31803 Blind Flanges are most conveniently suitable to use in many complex industrial applications because of their beneficial qualities. We fabricate these Duplex Steel UNS S31803 Blind Flanges using modern machinery, defined processes, and the latest technology in our well-equipped manufacturing unit. By implementing advanced technology, we have enhanced the production and quality standards of these Flanges. Our highly qualified, skilled professionals and experts are helping to maintain the quality of Duplex Steel UNS S31803 Blind Flanges by strictly supervising the process and referring defined manufacturing processes. We are providing customized and non-customized Blind Flanges to satisfy the needs of our esteemed clients from various industrial sectors.


We, Nitron Alloys Overseas, are also focusing on offering dimensionally accurate Duplex Steel UNS S31803 Blind Flanges . To avoid errors or defects, we perform different destructive and non-destructive tests during manufacturing. We are offering these well-tested Flanges with the proper packing and fast shipping. We also complete the urgent requirements of clients by supplying these Flanges in the required amount. We are ensuring to offer on-time delivery, excellent quality at affordable price. By packing these Duplex Steel UNS S31803 Blind Flanges in damage-proof materials, we ensure safe and convenient transportation. We are ensuring to satisfy the demands of our buyers by providing top quality Flanges with all required features and beneficial service.

Specification of Duplex Steel S31803 Blind Flanges

Spec bag
Blind Flange

Specifications: ASTM A182 / ASME SA182

Dimensions: 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: 1/4" - 48"

Class/Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type: flat face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Types of Duplex Steel Blind Flanges

Duplex Steel S31803 Flat Face Blind Flanges

Duplex Steel Flat Face Blind Flanges

Duplex Steel S31803 Raised Face Blind Flanges

Duplex Steel Raised Face Blind Flanges

Equivalent Grades for Duplex Steel S31803 Blind Flanges

UNS WERKSTOFF NR.
S31803 1.4462

Duplex Steel S31803 Blind Flanges Chemical Composition

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 Steel S31803 BLRF Flanges

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 %