Manufacturer, Supplier & Exporter of Super Duplex Steel Socket Weld Tee

Riddhi Siddhi Impex is a prominent manufacturer, stockist, and supplier of Super Duplex Steel Socket Weld Tee fittings in India. Headquartered in Mumbai, the company delivers high-quality forged fittings to industries requiring superior corrosion resistance and mechanical strength. The Super Duplex Steel Socket Weld Tee is one of their flagship products, designed to connect three pipes of equal or different diameters at a 90° angle in high-pressure piping systems. Manufactured using advanced forging technology, these tees ensure leak-free performance and durability even in harsh environments..

A Socket Weld Tee is a type of forged pipe fitting used to combine or divide the flow of fluids. Riddhi Siddhi Impex manufactures Super Duplex Steel Socket Weld Tees in both equal and reducing types, depending on the pipeline configuration. These fittings are available in pressure classes 3000, 6000, and 9000 LBS, and comply with ASME B16.11 and ASTM A182 F53/F55 standards. The Super Duplex grades (UNS S32750 and S32760) offer exceptional resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion — making them suitable for both offshore and onshore industrial use..

The Super Duplex alloy used in these Socket Weld Tees provides a unique combination of austenitic and ferritic microstructures, giving it twice the strength of standard austenitic stainless steels. With a high chromium, molybdenum, and nitrogen content, Super Duplex offers exceptional corrosion resistance in aggressive environments, including seawater and chemical processing applications. Riddhi Siddhi Impex sources premium raw materials from reputed mills and follows stringent quality control measures to ensure consistent metallurgical properties in every fitting produced..

Riddhi Siddhi Impex operates advanced manufacturing facilities equipped with precision forging and CNC machining technology to produce Socket Weld Tees with accurate dimensions and tight tolerances. Each product undergoes 100% quality inspection, including hydrostatic testing, hardness testing, ultrasonic testing, and PMI (Positive Material Identification). All fittings are delivered with complete Material Test Certificates (MTCs) in accordance with EN 10204 3.1/3.2 standards, ensuring full traceability. The company’s dedication to quality has made it one of India’s most reliable domestic suppliers of Super Duplex forged fittings...

Riddhi Siddhi Impex has built a strong supply network across India, covering all major industrial cities. The company supplies Super Duplex Steel Socket Weld Tee to cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Jaipur, Lucknow, and Coimbatore. It also caters to growing industrial regions like Dahej, Ankleshwar, Valsad, Narmada, Vilayat, and Rajpipla, ensuring timely delivery and technical support. Their robust logistics and customer-centric approach have made Riddhi Siddhi Impex a preferred domestic supplier for EPC contractors, refineries, and fabrication companies.

Super Duplex Steel Socket Weld Tee

Specification

Product	Super Duplex Steel Socket Weld Tee
Grade	UNS S32750 / S32760 (F53 / F55)
Standard	ASTM A182 / ASME SA182
Type	Equal Tee / Reducing Tee
Size Range	1/8” NB to 4” NB
Pressure Class	3000 / 6000 / 9000 LBS
Connection Type	Socket Weld (ASME B16.11)
Surface Finish	Mill Finish, Polished, Pickled
Manufacturer	Riddhi Siddhi Impex, Mumbai, India

Chemical Composition

Element	Content (%)
Chromium (Cr)	24.0 – 26.0
Nickel (Ni)	6.0 – 8.0
Molybdenum (Mo)	3.0 – 5.0
Manganese (Mn)	≤ 1.20
Carbon (C)	≤ 0.030
Silicon (Si)	≤ 0.80
Phosphorus (P)	≤ 0.035
Sulfur (S)	≤ 0.020
Nitrogen (N)	0.24 – 0.32
Iron (Fe)	Balance

Mechanical Properties

Property	Value
Tensile Strength	≥ 795 MPa
Yield Strength (0.2% Offset)	≥ 550 MPa
Elongation	≥ 25%
Hardness	≤ 32 HRC
Impact Strength	≥ 100 J at Room Temperature

Dimension Chart (Approximate)

Nominal Size (NB)	Center to End (C)	Run Diameter (mm)
1/2"	28	21.3
3/4"	33	26.7
1"	38	33.4
1 1/2"	51	48.3
2"	57	60.3
3"	76	88.9
4"	86	114.3

Equivalent Grades

Standard	Grade
ASTM / ASME	A182 F53 / F55
UNS	S32750 / S32760
EN	1.4410 / 1.4501
DIN	X2CrNiMoN25-7-4 / X2CrNiMoCuWN25-7-4

Equivalent Standards

Standard	Description
ASTM A182 / ASME SA182	Forged or Rolled Alloy and Stainless Steel Pipe Fittings
ASME B16.11	Forged Fittings – Socket Welding and Threaded
ASTM A815	Wrought Ferritic, Austenitic, and Duplex Stainless Steel Pipe Fittings
EN 10222-5	Steel Forgings for Pressure Purposes – Stainless Steels

Other Types of Super Duplex Fittings

Type	Description
Super Duplex Socket Weld Elbow 45° / 90°	Used to change flow direction in high-pressure pipelines
Super Duplex Socket Weld Coupling	Connects two pipes using socket weld joints
Super Duplex Socket Weld Cross	Allows flow division at right angles in piping networks
Super Duplex Socket Weld Cap	Seals the end of pipelines securely
Super Duplex Socket Weld Union	Provides easy disassembly and maintenance of piping systems

The Super Duplex Steel Socket Weld Tee is widely used in industries such as oil and gas, petrochemical, marine, power generation, paper and pulp, desalination, and chemical processing. In coastal cities like Kochi, Chennai, Mangalore, and Visakhapatnam, these tees are used in seawater systems due to their high resistance to pitting and corrosion. In inland manufacturing hubs like Ahmedabad, Vadodara, and Surat, they are commonly used in process piping systems that handle acids, chlorides, and high-pressure fluids. Their strength and versatility make them indispensable in both upstream and downstream industrial operations..

Frequently Asked Questions (FAQs)

Q1: What are the common applications of Super Duplex Steel Socket Weld Tee?

A1: These tees are used in oil & gas pipelines, chemical processing plants, marine systems, power generation, desalination, and offshore platforms where superior strength and corrosion resistance are essential.

Q2: Do you provide customized or reducing type Socket Weld Tees?

A2: Yes, Riddhi Siddhi Impex manufactures both Equal and Reducing Socket Weld Tees in various pressure classes and dimensions as per client requirements and project specifications.

Q3: What are the benefits of using Super Duplex Steel for Socket Weld Fittings?

A3: Super Duplex Steel offers high tensile strength, excellent pitting resistance, low thermal expansion, and superior performance under high pressure and temperature compared to standard stainless steels.

Q4: Which Indian cities do you supply these fittings to?

A4: Riddhi Siddhi Impex supplies Super Duplex Steel Socket Weld Tee across India, including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Coimbatore, Kochi, and more industrial cities.