Duplex Steel S31803 Hex Nuts Manufacturers In India.

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Duplex S31803 is a type of stainless steel alloy, which means it contains a combination of both austenite and ferrite phases in its microstructure. Duplex stainless steels are known for their excellent corrosion resistance and mechanical properties, making them suitable for a wide range of applications.

A Duplex S31803 hex nut is a type of fastener made from Duplex S31803 stainless steel. Hex nuts are used in various industries to secure bolts and screws in place. They have a hexagonal shape and are threaded internally to mate with the threads of a bolt or screw. Here are some features and applications of Duplex S31803 hex nuts:

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UNS
S31803
WNR
1.4462
ASTM / ASME
ASTM A479 / SA479
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Features:
Corrosion Resistance: Duplex S31803 stainless steel is highly resistant to corrosion, particularly in aggressive environments such as those containing chlorides. This makes it suitable for applications in marine, chemical processing, and offshore industries.
Strength: Duplex stainless steels, including S31803, offer a combination of high strength and toughness. This makes them suitable for use in structural components, pressure vessels, and equipment subjected to high mechanical loads.
Good Weldability: Duplex S31803 is known for its good weldability, which allows for ease of fabrication. It can be welded using common welding techniques, such as TIG (Tungsten Inert Gas) welding and MIG (Metal Inert Gas) welding.
Resistance to Stress Corrosion Cracking: Duplex stainless steels like S31803 are resistant to stress corrosion cracking, which is a type of corrosion that can occur in certain environments, especially when exposed to tensile stress.

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Duplex Steel S31803 Hex Nuts Specification

Specifications	ASTM A479 / ASME SA479
Size	Cold Forming process: M2-M24 Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg CNC Machining for M100 / 4” Dia, up to 1500mm lg Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Duplex Steel Hex Nuts
Diameter	1/4 "-4" Metric:M3 to M100
Types	Heavy Hex Nuts, Large Heavy Hex Nuts, Heavy Hex Jam Nut, Heavy Hex Coupling Nut, Heavy Duty Hex Nuts
DIN Standard	DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315
Dimensions	ASME B18.2.2 Heavy Hex Nuts, ASME B18.2.4.6M Metric Heavy Hex Nuts, ASME B18.16.6 / ASME B18.16.4 / ASME B18.2.2
Threads	METRIC, BSW, UNC, UNF, BSF or as required
Hex Nuts Forming	Hot Forged Hex Nuts & Cold Forged Hex Nuts
UTS – Unified Thread Standard	UNC, UNF, NPT, UNS, UNEF, NPTF

Applications:
Oil and Gas Industry: Duplex S31803 hex nuts are commonly used in the oil and gas industry for a wide range of applications, including pipeline systems, offshore platforms, and subsea equipment.
Chemical Processing: Due to their resistance to corrosion by various chemicals, these hex nuts find applications in the chemical processing industry, including in pumps, valves, and reactors.
Marine and Coastal Structures: The corrosion resistance of Duplex S31803 makes it suitable for use in marine environments, such as in the construction of boats, ship components, and coastal structures.
Pulp and Paper Industry: This alloy is used in the pulp and paper industry for equipment like pulp digesters and bleaching equipment where corrosion resistance is crucial.
Desalination Plants: Duplex S31803 stainless steel is used in desalination plants where it is exposed to saline environments.
Aerospace and Automotive: In certain specialized applications where high-strength fasteners are required, Duplex S31803 hex nuts may find use in aerospace and automotive industries.

Quality Assurance

To preserve the high standards of our selection of industrial hex nuts, we have always adhered to a systematic quality management process.

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Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of hex nuts.

Equivalent Grades Of Duplex Steel S31803 Hex Nuts

WERKSTOFF NR.	UNS
1.4462	S31803

Chemical Composition of Duplex S31803 Hex Nuts

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 DSS S31803 Hex Nuts

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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Types of Duplex Steel S31803 Hex Nuts