Duplex Steel Tube Fittings

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Iyle Tube Fittings is a trusted manufacturer and supplier of Duplex Steel Tube Fittings in South Africa. These fittings are designed to connect and secure tubes in pipelines that carry liquids or gases. Made from high-quality duplex stainless steel, they are highly durable, corrosion-resistant, and strong, making them ideal for harsh industrial environments. Duplex Steel Tube Fittings are widely used in industries such as oil and gas, chemical processing, water treatment, and marine applications. Iyle Tube Fittings ensures every fitting provides leak-free connections, smooth operation, and long-lasting performance, making them suitable for demanding industrial systems.

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Duplex Steel Tube Fittings are made from duplex stainless steel, which combines austenitic and ferritic structures. This gives them excellent strength, toughness, and corrosion resistance, especially against chloride-induced corrosion. They can handle high pressures and temperatures while maintaining leak-proof performance. The threads and sealing surfaces are precise, often paired with PTFE (Teflon) or other sealing materials for secure connections. Duplex Steel Tube Fittings are durable, resistant to wear, and maintain reliable performance even in harsh chemical, marine, and industrial environments.

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 South Africa, Cape Town

At Iyle Tube Fittings, we are proud to be the largest supplier, manufacturer, and exporter of Duplex Steel Tube Fittings in South Africa, Cape Town. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Cape Town, 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

Duplex Steel Tube Fittings are used wherever strong, durable, and corrosion-resistant connections are needed. They are widely used in oil and gas pipelines, chemical plants, water treatment facilities, and marine applications. They are ideal for handling aggressive liquids and gases under high pressure and temperature. Duplex Steel Tube Fittings ensure leak-free, safe, and reliable connections, reducing maintenance and preventing system failures. Their main advantage is providing long-lasting performance in demanding environments, making them essential for industrial, chemical, and marine systems where both strength and corrosion resistance are critical.