Manufacturer, Supplier & Exporter of Acetal (Delrin) Ferrule Fittings

Stainless Steel Threaded Coupling is a vital pipe fitting used to connect two pipes in a secure and leak-proof manner. Manufactured with precision and durability in mind, these couplings are designed to withstand high pressure, temperature, and corrosive environments, making them essential components in various industrial applications. Riddhi Siddhi Impex, a leading manufacturer and supplier, offers premium quality Stainless Steel Threaded Couplings that meet international standards and cater to diverse industry needs..

Riddhi Siddhi Impex has established itself as a trusted name in the Indian domestic market by providing Stainless Steel Threaded Couplings with excellent mechanical properties and corrosion resistance. Their couplings are manufactured using high-grade stainless steel such as SS 304, SS 316, and SS 316L, ensuring longevity and reliability even under harsh operating conditions. This makes them ideal for applications in chemical processing, oil and gas, power plants, water treatment, and food industries..

One of the key features of Stainless Steel Threaded Couplings from Riddhi Siddhi Impex is their precise threading which ensures a tight and secure connection without the risk of leakage. The threading process follows strict industry standards like ASME B1.20.1, guaranteeing compatibility with pipes and fittings of the same standard. This attention to detail ensures that installations are easy, fast, and durable...

The couplings supplied by Riddhi Siddhi Impex come in various sizes and pressure ratings, accommodating the requirements of small to large-scale projects. Their extensive inventory ensures availability across major Indian cities 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, and many more...

Riddhi Siddhi Impex’s stainless steel threaded couplings are also available in custom specifications to suit specific industry needs. Whether it is for high-temperature services or applications requiring enhanced corrosion resistance, they tailor products to meet client demands, ensuring maximum satisfaction and performance..

Stainless Steel Threaded Coupling

Specification

Grade	SS 304, SS 316, SS 316L
Standard	ASME B16.11, ASTM A182
Size Range	1/8" to 4" (DN 6 to DN 100)
Thread Type	NPT, BSPT
Finish	Polished, Pickled & Passivated
Pressure Rating	Class 1500, Class 3000
Form	Threaded Coupling

Chemical Composition (%)

Element	SS 304	SS 316
Carbon (C)	≤ 0.08	≤ 0.08
Chromium (Cr)	18.0 – 20.0	16.0 – 18.0
Nickel (Ni)	8.0 – 10.5	10.0 – 14.0
Manganese (Mn)	≤ 2.00	≤ 2.00
Silicon (Si)	≤ 0.75	≤ 0.75
Phosphorus (P)	≤ 0.045	≤ 0.045
Sulfur (S)	≤ 0.030	≤ 0.030
Molybdenum (Mo)	—	2.0 – 3.0

Mechanical Properties

Property	SS 304	SS 316
Tensile Strength	520 – 750 MPa	515 – 690 MPa
Yield Strength (0.2% offset)	205 MPa (min)	215 MPa (min)
Elongation	40% (min)	40% (min)
Hardness	≤ 95 HRB	≤ 95 HRB

Dimension Chart (Typical Size Range)

Nominal Size (Inch)	Outside Diameter (mm)	Length (mm)
1/8"	10.3	25
1/4"	13.7	30
1/2"	21.3	38
3/4"	26.7	45
1"	33.4	50
2"	60.3	75
4"	114.3	120

Equivalent Grades

Standard	Grade
ASTM	A182 F304 / F316
EN	1.4301 (304) / 1.4401 (316)
JIS	SUS 304 / SUS 316
GB	06Cr19Ni10 / 06Cr17Ni12Mo2

Equivalent Standards

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

Other Types of Stainless Steel Couplings

Type	Description
Socket Weld Coupling	Provides a strong, leak-proof joint with socket-welding technique
Butt Weld Coupling	Welded end coupling for high-pressure applications
Reducing Coupling	Connects pipes of different diameters
Hex Coupling	Hexagonal shape for easy wrench grip and tightening

Apart from supplying standard threaded couplings, Riddhi Siddhi Impex also offers other stainless steel pipe fittings such as elbows, tees, crosses, reducers, and flanges, making them a one-stop solution for piping requirements. Their commitment to quality and service excellence has earned them a loyal clientele across the Indian market..

Frequently Asked Questions (FAQs)

Q1: What sizes are available for Stainless Steel Threaded Couplings?

A1: We offer sizes ranging from 1/8" to 4" to suit various pipe diameters and applications.

Q2: Are custom sizes or pressure ratings available?

A2: Yes, Riddhi Siddhi Impex can supply custom sizes and pressure ratings based on your project requirements.

Q3: What industries commonly use these threaded couplings?

A3: They are widely used in oil & gas, chemical processing, water treatment, power plants, and food industries.

Q4: How is the corrosion resistance of these stainless steel couplings?

A4: Manufactured with SS 304 and SS 316 grades, these couplings offer excellent corrosion resistance suitable for harsh environments.