Manufacturer, Supplier & Exporter of Super Duplex Steel Threaded Elbow 45° / 90°

Riddhi Siddhi Impex is a reputed manufacturer, stockist, and supplier of high-performance pipe fittings, including Super Duplex Steel Threaded Elbow 45° / 90°. Based in Mumbai, India, the company specializes in manufacturing forged and threaded fittings that meet international standards like ASTM, ASME, and ANSI. Their Super Duplex threaded elbows are designed to provide leak-free, durable, and corrosion-resistant performance in various industrial applications, catering to domestic markets across India’s leading industrial cities...

A Super Duplex Steel Threaded Elbow is a type of forged fitting that changes the direction of fluid flow in a piping system by either 45° or 90°. These fittings are threaded at both ends to allow quick assembly and disassembly without welding. Made from premium grades such as UNS S32750 (F53) and UNS S32760 (F55), these elbows provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Riddhi Siddhi Impex offers these fittings in different pressure ratings such as 2000, 3000, 6000, and 9000 LBS, ensuring compatibility with a wide range of process systems..

The Super Duplex material used in these threaded elbows is known for its high chromium, nickel, and molybdenum content, resulting in exceptional corrosion resistance and superior mechanical strength. Riddhi Siddhi Impex manufactures its threaded elbows following strict standards like ASTM A182 / ASME SA182 and ASME B16.11, ensuring accurate dimensions, robust performance, and long service life. Each product is subjected to quality tests such as visual inspection, hardness testing, PMI (Positive Material Identification), and hydrostatic testing before dispatch..

Riddhi Siddhi Impex utilizes advanced manufacturing facilities equipped with CNC machinery, forging units, and precision threading tools to produce Threaded Elbows (45° / 90°) with exceptional dimensional accuracy. The company also provides customized solutions—including different sizes, pressure ratings, and surface finishes—to suit specific project needs. Whether for petrochemical plants in Vadodara, oil refineries in Dahej, or marine installations in Kochi, these fittings are designed to withstand extreme environments and provide long-term reliability...

Riddhi Siddhi Impex is recognized as a trusted domestic supplier of Super Duplex Steel Threaded Elbow 45° / 90° across all major industrial zones in India. Their extensive supply network covers key cities like Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Jaipur, Lucknow, Coimbatore, and Visakhapatnam. The company ensures timely delivery and cost-effective pricing, supported by an efficient logistics system that reaches even tier-2 and tier-3 cities such as Valsad, Rajpipla, Akola, Kolhapur, and Narmada..

Super Duplex Steel Threaded Elbow 45° / 90°

Specification

Grade	Super Duplex Stainless Steel UNS S32750 / S32760
Standard	ASTM A182 / ASME SA182
Type	Threaded Elbow 45° / 90° (Forged Fittings)
Size Range	1/8” NB to 4” NB
Pressure Class	2000 / 3000 / 6000 / 9000 LBS
Thread Type	BSP / BSPT / NPT as per ASME B1.20.1
Connection Type	Female Threaded (Screwed Type)
Finish	Mill Finish, Pickled, Polished
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 (Typical Sizes)

Nominal Size (NB)	Thread Type	Approx. Radius (mm)
1/2"	NPT/BSP	38
3/4"	NPT/BSP	45
1"	NPT/BSP	55
1 1/2"	NPT/BSP	83
2"	NPT/BSP	95
3"	NPT/BSP	140
4"	NPT/BSP	165

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 and Parts
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 Threaded Tee	Used to combine or divide the fluid flow in pipelines
Super Duplex Threaded Reducer	Connects pipes of different diameters ensuring smooth transition
Super Duplex Threaded Coupling	Provides threaded connection between two pipes
Super Duplex Threaded Cap	Used to seal or close the pipe ends securely
Super Duplex Threaded Union	Allows easy disassembly of pipe systems for maintenance

The Super Duplex Threaded Elbows are suitable for a variety of high-pressure and high-corrosion applications. Industries like oil & gas, petrochemical, power generation, desalination, marine, paper & pulp, and chemical processing rely on these fittings for their reliability and strength. In coastal cities such as Chennai, Kochi, Mangalore, and Visakhapatnam, these elbows perform exceptionally well in saline environments, while inland plants in Ahmedabad, Surat, and Vadodara use them in chemical processing units where corrosion resistance is critical..

Frequently Asked Questions (FAQs)

Q1: What are the main applications of Super Duplex Steel Threaded Elbow 45° / 90°?

A1: These elbows are commonly used in oil & gas pipelines, marine applications, desalination plants, petrochemical refineries, and high-pressure chemical industries due to their superior corrosion and pressure resistance.

Q2: Can you supply custom-sized or special-grade threaded elbows?

A2: Yes, Riddhi Siddhi Impex provides Super Duplex Steel Threaded Elbows in customized sizes, pressure classes, and grades (S32750 / S32760) according to project requirements and client drawings.

Q3: What are the benefits of using Super Duplex Steel for threaded fittings?

A3: Super Duplex Steel offers high tensile and yield strength, excellent resistance to chloride-induced corrosion, longer service life, and improved weldability compared to standard stainless steels.

Q4: Do you supply these fittings across India?

A4: Yes, Riddhi Siddhi Impex supplies Super Duplex Steel Threaded Elbow 45° / 90° to major Indian cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Coimbatore, Kochi, and more.