Manufacturer, Supplier & Exporter of Super Duplex Steel Cap / Plug

Riddhi Siddhi Impex is a leading manufacturer and supplier of Super Duplex Steel Cap / Plug, providing high-quality stainless steel fittings suitable for a wide range of industrial applications. These caps and plugs are precision-engineered to ensure a secure and leak-proof closure of pipelines, protecting systems from contaminants and preventing fluid or gas leakage...

The Super Duplex Steel Cap / Plug is made from premium-grade Super Duplex stainless steel (UNS S32750 / S32760), which offers exceptional resistance to corrosion, pitting, and crevice attacks. This makes it highly reliable for use in harsh environments, including chemical processing, petrochemical industries, marine applications, and desalination plants..

Riddhi Siddhi Impex specializes in both threaded and socket weld caps/plugs, providing flexibility to clients depending on the installation requirements. The threaded variants allow easy assembly and disassembly without welding, while socket weld versions ensure a permanent and strong connection...

Domestic distribution by Riddhi Siddhi Impex covers major cities across India, including 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. This wide coverage ensures timely delivery and availability for industrial projects nationwide..

Super Duplex Steel Caps / Plugs from Riddhi Siddhi Impex offer excellent mechanical strength, with high tensile and yield strength, making them suitable for high-pressure piping systems. Their robust construction ensures long service life even under extreme operating conditions..

Super Duplex Steel Cap / Plug

Specification

Grade	Super Duplex Stainless Steel S32750 / S32760
Standard	ASTM A182, ASME B16.11
Pressure Rating	150#, 300#, 600#
Size	1/2" to 12" (custom sizes available)
Connection Type	Threaded / Socket Weld
Finish	Polished, Pickled & Passivated, Customized

Chemical Composition

Element	Content (%)
Chromium (Cr)	24 – 26
Nickel (Ni)	6 – 8
Molybdenum (Mo)	3 – 5
Manganese (Mn)	2
Nitrogen (N)	0.2 – 0.3
Iron (Fe)	Balance
Carbon (C)	≤ 0.03

Mechanical Properties

Property	Value
Tensile Strength	≥ 750 MPa
Yield Strength (0.2% offset)	≥ 550 MPa
Elongation	≥ 25%
Hardness	≤ 40 HRC

Dimension Chart

Size (Inch)	Schedule	Weight (kg)
1/2"	10-160	0.2 – 0.4
1"	10-160	0.5 – 1.0
2"	10-160	1.2 – 2.5
4"	10-160	3.5 – 7.0
6"	10-160	7.5 – 15

Equivalent Grades

Standard	Grade
UNS	S32750 / S32760
EN	1.4410 / 1.4501
JIS	SUS 32750 / 32760
GB	Z3CND17-12

Equivalent Standards

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

Other Types of Stainless Steel Fittings

Type	Description
SS Elbow	Available in 45° / 90° Socket Weld and Threaded variants
SS Tee	Socket Weld / Threaded Tees for branching pipelines
SS Cross	4-way pipeline fittings in threaded or socket weld type
SS Coupling / Half Coupling	Connects two pipes, available in threaded/socket weld
SS Union	Quick disassembly fittings for maintenance

Riddhi Siddhi Impex also provides customization options, offering different thread types, finishes, and sizes according to project-specific needs. This makes it convenient for industries such as oil & gas, chemical processing, power generation, and water treatment to procure fittings that perfectly match their piping systems..

Frequently Asked Questions (FAQs)

Q1: What are the applications of Super Duplex Steel Cap / Plug?

A1: Used in pipelines for sealing ends, in chemical, petrochemical, oil & gas, and marine industries to prevent leakage.

Q2: Are custom sizes and threads available?

A2: Yes, Riddhi Siddhi Impex provides custom dimensions, pressure ratings, and thread types based on client requirements.

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

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

Q4: Which Indian cities are covered for domestic supply?

A4: Major cities like Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, and over 40 more locations across India.