Duplex Steel S31803 Flanges Manufacturer in Istanbul, Turkey

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Hakan Nickel Alloys, located in Istanbul, Turkey, has made a name for itself as a reliable manufacturer and supplier of top-notch Duplex Steel S31803 Flanges, specifically catering to clients in Da Nang, Vietnam. With years of experience in the metallurgical field, the company prides itself on delivering precision-engineered flanges that adhere to international standards. Their products are celebrated for their outstanding durability, resistance to corrosion, and overall reliability, making them perfect for industries that require high-performance components. Hakan Nickel Alloys is dedicated to quality and customer satisfaction, utilizing advanced manufacturing techniques alongside rigorous quality control measures to produce flanges that thrive in tough industrial settings, ensuring consistent performance and a long lifespan.

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Duplex Steel S31803 flanges are crafted from a well-balanced blend of austenitic and ferritic stainless steel, containing about 22% chromium, 5–6% nickel, 3% molybdenum, and trace amounts of nitrogen. This unique composition results in a dual-phase structure that boosts both strength and corrosion resistance. On the mechanical side, these flanges showcase a high yield strength of around 450 MPa, a tensile strength ranging from 620 to 850 MPa, and impressive toughness. They are designed to resist stress corrosion cracking and pitting in chloride environments while also providing good fatigue performance, making them ideal for demanding applications where mechanical strength and corrosion resistance are essential.

Duplex Steel S31803 Flanges Specifications

Specifications	ASTM A182 / ASME SA182
Size	1/8″ NB TO 48″ NB
Standards	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Grades	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Duplex Steel S31803 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

Duplex Steel S31803 Flanges Mechanical Properties

Grades	Density (g/cm 3)	Density (lb/in 3)	Melting Point (°C)	Melting Point (°F)
S31803	7.805	0.285	1420 – 1465	2588 – 2669

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Largest Manufacturer and Supplier of Duplex Steel S31803 Flanges in Istanbul, Turkey

At Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Flanges in Istanbul, Turkey, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Turkey, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.

Types of Duplex Steel S31803 Flanges

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

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Duplex Steel S31803 Flanges Uses

Duplex Steel S31803 flanges are widely used in the chemical processing, oil and gas, petrochemical, and marine industries due to their exceptional corrosion resistance and strength. They are perfect for piping systems, pressure vessels, and high-temperature applications where standard stainless steels may not hold up. These flanges are commonly found in seawater handling, desalination plants, and heat exchangers, ensuring reliable performance even in harsh conditions. Their blend of toughness and durability makes them well-suited for high-pressure and high-stress environments, providing the reliability that industries depend on.

Duplex Steel S31803 Flanges Manufacturer in Istanbul, Turkey

Table of Contents

Duplex Steel S31803 Flanges Specifications

Duplex Steel S31803 Flanges Chemical Composition