Product Name: SS Threaded Coupling
Product Type: Forged Threaded Pipe Fittings
Size Range: DN6 (1/8") – DN100 (4")
Pressure Rating: Class 3000 / 6000 / 9000
Connection Type: Female Threaded
Thread Standard: NPT / BSP / BSPT
Manufacturing Process: Die Forging / Free Forging + CNC Machining
Surface Finish: Natural, Pickled, Machined
Application: Oil & Gas, Chemical, Power Generation, Industrial Piping
Inspection: Dimensional Inspection, PMI, UT, MT (as required)
SS threaded couplings are high-strength forged pipe fittings designed to connect two male-threaded pipes in a straight line for high-pressure and industrial piping systems.
• Secure and leak-resistant threaded connection
• Suitable for high-pressure and critical service conditions
• Forged structure for superior mechanical strength and durability
• Compliant with ASME, BS, JIS, and GB international standards
As a professional forged pipe fitting manufacturer, we supply SS threaded couplings for global EPC projects and industrial pipeline systems.
| Specification | Range |
|---|---|
| Size | DN6 (1/8") – DN100 (4") |
| Pressure Class | Class 3000 / 6000 / 9000 |
| Thread Type | NPT / BSP / BSPT |
| Connection | Female Threaded |
Suitable for oil & gas, chemical, power, and high-pressure industrial piping systems.
ASME: B16.11
British Standard: BS 3799
Japanese Standard: JIS B2316
Chinese Standards: GB/T 14383, SH 3410, HG/T 21634
SS threaded couplings are multi-standard compatible and can be integrated into international piping systems.
We provide a wide range of materials to meet pressure, corrosion resistance, and temperature requirements:
Stainless Steel
ASTM A182 F304 / F304L
ASTM A182 F316 / F316L
Carbon Steel
ASTM A105
ASME A350 LF2 / LF6
20#, Q235, Q345
Duplex & Super Duplex Steel
ASTM A182 F51 / F53 / F55
S31803 / S32205
Alloy Steel
ASTM F5, F9, F11, F22, F91
Nickel & Copper Alloy
Monel 400
Inconel 600 / 625 / 825
Hastelloy C276
Cu-Ni 90/10, Cu-Ni 70/30
All materials are supplied with Mill Test Certificates (MTC) and full traceability.
• Raw material inspection
• Die forging / free forging
• Heat treatment
• CNC precision machining
• Dimensional inspection & NDT
Forged threaded couplings provide dense metal structure, high strength, and reliable performance under pressure.
Each SS threaded coupling undergoes strict inspection:
• Dimensional inspection
• Chemical composition analysis (PMI)
• Ultrasonic testing (UT)
• Magnetic particle testing (MT)
Ensuring compliance with international standards and stable product quality.
• Oil & gas pipeline systems
• Chemical and petrochemical plants
• Power generation piping
• Industrial and high-pressure pipelines
SS threaded couplings are key components for safe and reliable pipeline connections.
• Full size range from DN6 to DN100
• High-pressure ratings up to Class 9000
• Forged construction for superior strength
• Multiple material options for harsh environments
• Suitable for EPC and long-term industrial projects
