Manufacturer, Supplier & Exporter of Alloy Steel Threaded Half Coupling

Alloy Steel Threaded Half Coupling is a crucial piping component used to connect two pipes or fittings securely in industrial pipeline systems. Unlike full couplings, half couplings are threaded or welded on one side only, which makes them ideal for applications where limited space or a branch connection is required. Riddhi Siddhi Impex is a renowned manufacturer and domestic supplier of these high-quality alloy steel threaded half couplings, trusted for their precision, durability, and adherence to global standards..

Manufactured using premium-grade alloy steels such as ASTM A182 grades F1, F5, F9, F11, F22, and F91, these half couplings offer exceptional resistance to heat, corrosion, and mechanical stress. The threaded design enables easy installation without the need for welding, making it an excellent choice for maintenance-heavy or modification-prone pipelines. Riddhi Siddhi Impex ensures that each coupling meets the highest standards of performance and reliability.

Riddhi Siddhi Impex’s manufacturing process emphasizes precision threading to ensure leak-proof connections and tight fits with mating pipes or fittings. The company utilizes state-of-the-art machinery and quality control procedures including dimensional inspection, chemical analysis, and mechanical testing to guarantee the best product quality. Their threaded half couplings come in various sizes and pressure classes suitable for a wide range of industrial applications..

The domestic supply chain of Riddhi Siddhi Impex covers a broad spectrum of Indian cities such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, and Vadodara. Moreover, they actively serve emerging industrial hubs like Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, and Varanasi. This extensive reach enables them to fulfill urgent and large-volume orders efficiently across India...

Riddhi Siddhi Impex also caters to niche demands from smaller yet significant cities including Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, and Thiruvananthapuram. Industrial sectors in these locations rely heavily on their threaded half couplings for projects in oil and gas, chemical processing, power plants, and infrastructure development..

Alloy Steel Threaded Half Coupling - Specifications & Details

Category	Details
Product	Alloy Steel Threaded Half Coupling
Material Grades	ASTM A182 F1, F5, F9, F11, F22, F91
Applicable Standards	ASME B16.11, ASTM A182, MSS SP-83
Chemical Composition (Typical for ASTM A182 F11)	Carbon: 0.05–0.15% Manganese: 0.30–0.60% Silicon: ≤ 0.50% Chromium: 1.00–1.50% Molybdenum: 0.44–0.65%
Mechanical Properties (ASTM A182 F11)	Yield Strength: ≥ 415 MPa Tensile Strength: 585–760 MPa Elongation: ≥ 20% Hardness: Max 95 HRB
Dimension Chart (ASME B16.11)	Nominal Pipe Size (NPS) Thread Size Length (L) Outside Diameter (D) 1/8" 1/8"-27 NPT 19 mm 17 mm 1/4" 1/4"-18 NPT 22 mm 22 mm 3/8" 3/8"-18 NPT 25 mm 27 mm 1/2" 1/2"-14 NPT 28 mm 34 mm 3/4" 3/4"-14 NPT 32 mm 43 mm 1" 1"-11.5 NPT 38 mm 49 mm
Equivalent Grades	F1, F5, F9, F11, F22, F91 (ASTM A182)
Equivalent Standards	ASME B16.11, ASTM A182, MSS SP-83
Other Types	Socket Weld Half Coupling, Full Coupling, Threaded Coupling, Socket Weld Coupling, Reducing Coupling

The company understands the importance of compliance with international standards. Hence, all threaded half couplings are manufactured following ASME B16.11 and ASTM A182 standards, ensuring compatibility and safety under high pressure and temperature conditions. Riddhi Siddhi Impex’s commitment to quality ensures their products are widely used in critical and hazardous environments.

Frequently Asked Questions (FAQs)

Q1: What applications are Alloy Steel Threaded Half Couplings used for?

A1: They are widely used in high-pressure piping systems in industries like oil & gas, petrochemical, power plants, and refineries where reliable threaded connections are required.

Q2: Can you supply custom sizes or special material grades?

A2: Yes, Riddhi Siddhi Impex offers customization based on project requirements including sizes, grades, and pressure ratings.

Q3: What inspection and certification do you provide?

A3: We provide Mill Test Certificates (MTC) along with third-party inspection reports upon request to ensure compliance with international standards.

Q4: Which Indian cities do you supply to?

A4: We supply across major and emerging industrial cities such as Mumbai, Delhi, Bengaluru, Chennai, Ahmedabad, Surat, Pune, Hyderabad, and many more.