Duplex Steel Tube Fittings

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Rudra Tubefittings, a reputable manufacturer and supplier located in Kolkata, India, specializes in top-notch Duplex Steel Tube Fittings that are crafted for dependable, leak-proof connections in tough industrial piping and instrumentation systems. Built to withstand corrosion, mechanical stress, and the test of time, these fittings guarantee long-lasting performance even in high-pressure and harsh chemical environments. At Rudra Tubefittings, every Duplex Steel Tube Fitting is made to meet international quality standards, showcasing precision engineering and sturdy construction. These fittings are widely utilized in sectors like chemical, petrochemical, offshore, oil and gas, and power generation, enhancing safety, operational efficiency, and reliable fluid handling in critical industrial settings.

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Manufactured from high-quality duplex stainless steel, Duplex Steel Tube Fittings blend austenitic and ferritic microstructures to offer exceptional resistance to corrosion, pitting, and stress cracking. They boast impressive tensile strength, toughness, and stability even under high pressure and temperature conditions. With precision-engineered threads and connections, these fittings ensure a leak-proof assembly, easy installation, and consistent performance. The combination of mechanical durability and chemical resistance makes Duplex Steel Tube Fittings perfect for demanding industrial applications, providing long-term service, low maintenance, and dependable operation in challenging fluid-handling systems.

Duplex Steel Tube Fittings Specifications

Specification	ASTM A276, ASTM A182 ASME SA479, ASME SA182
Tube Size	1/16 OD to 2 OD, Od to 50mm OD
Type	Seamless/ Welded/Fabricated
Thread	BSPT, UNF, SAE, BSP, NPT, ISO, etc.
Material Grades	Duplex 2205 Duplex S31803 Duplex S32205
PTFE Standard	ASTM D1710 and D3294
Pressure Rating	1000/300/6000/3000/10000 PSI for Duplex Steel
Temperature	150-400°C
PACKING DETAIL	size of the wooden box – 382717CM size of carton – 211614CM/312116CM/364550CM

Duplex Steel Tube Fittings Sizes

Duplex SS Seamless Compression Fittings :

Size: 1/8 to 2

Pressure Rating: 3000 psi to 10000 psi

Threads: NPT, BSPT, BSPP

Duplex SS Welded Compression Fitting and Tube Adapters :

Size: 24 to 94 and Custom

Pressure Rating: 30000 psi to 10000 psi

Threads: NPT, BSPT, BSPP

Types of Duplex Steel Tube Fittings

Dimension of Duplex Steel Tube Fittings

Threads Dimension of BSPP and BSPT
SIZE	PITCH & SIZE	OD THREAD		OD THREAD		ID THREAD		ID Thread
DASH	BSPP & BSPT	MALE BSPT		MALE BSPP		FEMALE BSPT		FEMALE BSPP
	Inch to TPI	mm	inch	mm	inch	mm	inch	mm	inch
-4	1/4 to 19	12,8	0.5	13,0	0.51	11,2	0.44	11,9	0.47
-2	1/8 to 28	9,5	0.37	9,6	0.38	8,4	0.33	8,6	0.34
-6	3/8 to 19	16,3	0.64	16,5	0.65	14,7	0.59	15,2	0.6
-10	5/8 to 14	22,5	0.89	22,8	0.9	20,6	0.81	20,8	0.82
-8	1/2 to 14	20,4	0.8	20,8	0.82	18,3	0.72	19,1	0.75
-12	3/4 to 14	25,9	1.02	26,3	1.04	23,9	0.94	24,6	0.97
-20	1.1/4 to 11	41,1	1.62	41,8	1.64	38,6	1.52	39,4	1.55
-16	1 to 11	32,6	1.28	33,1	1.3	29,7	1.17	30,7	1.21
-24	1.1/2 to 11	47,0	1.85	47,7	1.88	44,5	1.75	45,5	1.79
-40	2.1/2 to 11	74,1	2.92	75,1	2.95	71,9	2.83	72,6	2.86
-32	2(11)	58,6	2.31	59,5	2.34	56,4	2.22	57,4	2.26
-48	3 to 11	86,6	3.41	87,9	3.46	84,6	3.33	85,4	3.36

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

Largest Manufacturer and Supplier of Duplex Steel Tube Fittings in Kolkata, Kolkata

At Rudra Tube Fittings, we are proud to be the largest supplier, manufacturer, and exporter of Duplex Steel Tube Fittings in Kolkata, Kolkata. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Kolkata, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.

Duplex Steel Tube Fittings Uses

These fittings are extensively used in industries that require corrosion-resistant, high-strength, and reliable piping solutions. You’ll find them in chemical processing plants, petrochemical units, offshore platforms, oil and gas pipelines, and power generation facilities. They effectively connect tubes, pipes, and instrumentation lines while ensuring leak-proof performance and maintaining system integrity. Additionally, they are essential in high-pressure and high-temperature fluid systems, hydraulic pipelines, and more.