Manufacturer, Supplier & Exporter of Super Duplex Steel Threaded Cross

Riddhi Siddhi Impex is a leading manufacturer, supplier, and exporter of Super Duplex Steel Threaded Cross in India, catering to various industrial sectors. With over 20 years of experience, the company has established a strong presence in major cities such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nagpur, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Vadodara, Narmada, Surat, Ankleshwar, Navsari, Valsad, Rajpipla..

Riddhi Siddhi Impex is a renowned manufacturer, supplier, and exporter of Super Duplex Steel Threaded Cross in India. With years of industry experience, the company ensures high-quality, durable fittings that meet international standards. Their products are widely supplied to industrial hubs across Indian cities such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, and Rajpipla.

The Super Duplex Steel Threaded Cross is manufactured using high-grade Super Duplex Stainless Steel, combining austenitic and ferritic properties. This unique composition ensures superior corrosion resistance, high strength, and durability, making it suitable for harsh environments such as chemical, petrochemical, and offshore applications. Typical chemical composition includes chromium (24–26%), nickel (6–8%), molybdenum (3–5%), manganese (≤2%), nitrogen (0.18–0.25%), carbon (≤0.03%), phosphorus (≤0.035%), and sulfur (≤0.02%)..

These fittings provide exceptional mechanical strength to withstand high-pressure and high-temperature conditions. Tensile strength is ≥ 750 MPa, yield strength is ≥ 550 MPa, elongation is ≥ 25%, and hardness is ≤ 350 HB. These properties ensure that the fittings maintain integrity and reliability over extended service life, even in challenging industrial conditions..

Super Duplex Steel Threaded Cross fittings are widely used across industries. In chemical processing, they handle aggressive chemicals and acids safely. In oil and gas, they ensure reliable transportation of oil and gas under high pressures. Marine applications benefit from their resistance to seawater corrosion, while petrochemical and power generation industries rely on them for high-pressure pipelines and steam systems..

Super Duplex Steel Threaded Cross

Specification

Grade	Super Duplex Stainless Steel (UNS S32750/S32760)
Standard	ASTM A182 / ASME B16.11
Size	1/2" to 4" (custom sizes available)
Pressure Rating	Class 150, 300, 600
Finish	Polished, Pickled & Passivated, Custom
Thread Type	BSP, NPT, or Custom
Form	Threaded Four-Way Pipe Fitting

Chemical Composition

Element	Content (%)
Chromium (Cr)	24–26
Nickel (Ni)	6–8
Molybdenum (Mo)	3–5
Manganese (Mn)	≤ 2
Nitrogen (N)	0.18–0.25
Carbon (C)	≤ 0.03
Phosphorus (P)	≤ 0.035
Sulfur (S)	≤ 0.02

Mechanical Properties

Property	Value
Tensile Strength	≥ 750 MPa
Yield Strength (0.2% offset)	≥ 550 MPa
Elongation	≥ 25%
Hardness	≤ 350 HB

Dimension Chart

Nominal Size (inch)	Pressure Rating	End Connection
1/2"	150, 300	Threaded
3/4"	150, 300	Threaded
1"	150, 300, 600	Threaded
2"	150, 300, 600	Threaded
4"	150, 300, 600	Threaded

Equivalent Grades

Standard	Grade
ASTM	S32750 / S32760
EN	1.4410 / 1.4501
JIS	SUS 329J4L / SUS 329J1L
GB	0Cr25Ni6Mo5N

Equivalent Standards

Standard	Description
ASTM A182	Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves
ASME B16.11	Forged Fittings, Socket-Welding and Threaded

Other Types of Stainless Steel Fittings

Type	Description
Socket Weld Cross	Four-way fitting for high-pressure systems with socket weld ends
Threaded Tee	Three-way threaded fitting used for piping branch connections
Socket Weld Tee	Three-way socket weld fitting for high-pressure piping
Elbow 45° / 90°	Angled fittings used to change the direction of piping systems

Super Duplex Steel combines the benefits of austenitic and ferritic stainless steel, offering superior mechanical strength and excellent corrosion resistance. This makes Threaded Cross fittings ideal for aggressive industrial environments, including chemical plants, petrochemical refineries, oil and gas pipelines, and marine applications. The fittings resist pitting, crevice corrosion, and stress corrosion cracking, providing long-term reliability..

Frequently Asked Questions (FAQs)

Q1: What industries use Super Duplex Steel Threaded Cross?

A1: It is used in chemical, petrochemical, oil & gas, marine, power, and high-pressure piping systems.

Q2: Can custom sizes and threads be provided?

A2: Yes, Riddhi Siddhi Impex offers customization in sizes, pressure ratings, and threading types according to project requirements.

Q3: What makes Super Duplex Steel suitable for corrosive environments?

A3: Its high chromium, nickel, molybdenum, and nitrogen content provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.

Q4: Which Indian cities are served by Riddhi Siddhi Impex?

A4: They supply fittings across Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, and many other cities nationwide.