The SS female thread half coupling is a forged stainless steel pipe fitting designed with internal threads on one end and a plain end on the other, commonly used for branch connections, extensions, or terminations in industrial piping systems. Manufactured through die forging / free forging and CNC machining, this fitting ensures high mechanical strength, precise threading, and reliable sealing performance.
Compliant with international standards including ASME B16.11, BS 3799, JIS B2316, GB/T14383, the stainless steel female threaded half coupling is widely applied in oil & gas, petrochemical, marine, power generation, and industrial piping systems, particularly where compact installation and pressure integrity are required.
| Feature | Specification |
|---|---|
| Product Type | SS Female Thread Half Coupling |
| Size Range | 1/8” (DN6) – 4” (DN100) |
| Pressure Rating | Class 3000 / 6000 / 9000 |
| Connection Type | Female Threaded (NPT / BSP) or Socket Welding |
| Material Grades | Stainless Steel, Carbon Steel, Duplex & Super Duplex Steel, Alloy Steel, Nickel & Copper Alloys |
| Surface Treatment | Sand Blasting, Cold Galvanized, Hot Dip Galvanized |
| Manufacturing Process | Cutting, Heat Treatment, Die Forging / Free Forging, CNC Machining |
| Standards | ASME B16.11, BS 3799, JIS B2316, GB/T14383, SH3410, HG/T21634 |
Stainless Steel
ASTM A182 F304 / F304L / F316 / F316L
Carbon Steel
ASTM A105 / ASME A350 LF2 / LF6 / 20# / Q235 / Q345
Duplex & Super Duplex Steel
ASTM A182 F51 / F53 / F55
UNS S31803 / S32205 / S22053 / S22253
Alloy Steel
ASTM A182 F5 / F9 / F11 / F22 / F91
Copper Alloy Steel
ASTM / ASME SB466
UNS C70600 (Cu-Ni 90/10)
UNS C71500 (Cu-Ni 70/30)
Nickel Alloy
ASTM / ASME SB336, SB564 / SB160 / SB163 / SB472
UNS N02200 (Nickel 200)
UNS N02201 (Nickel 201)
UNS N04400 (Monel 400)
UNS N08020 (Alloy 20 CB3)
UNS N08825 (Inconel 825)
UNS N06600 / N06601 / N06625 (Inconel 600 / 601 / 625)
UNS N10276 (Hastelloy C276)
Oil & gas pipelines
Petrochemical and chemical processing systems
Power generation and boiler piping
Marine and offshore piping systems
Industrial water, steam, and fluid transport
Branch connections in pressure piping systems
Forged Stainless Steel Construction: High strength and pressure resistance
Female Thread Half Coupling Design: Compact solution for branch or extension connections
High Pressure Rating: Suitable for Class 3000 / 6000 / 9000 systems
Precision Internal Threads: NPT or BSP for reliable sealing
Wide Material Options: Stainless, carbon, duplex, alloy, nickel, and copper alloys
Surface Treatment Options: Enhanced corrosion protection
Standards Compliance: ASME B16.11, BS 3799, JIS B2316, GB/T14383
Long Service Life: Designed for demanding industrial applications
Raw material chemical composition and mechanical testing
Dimensional and thread inspection using gauges
Visual and surface inspection prior to shipment
Compliance with international manufacturing and inspection standards
Q1: What is a female thread half coupling used for?
It is commonly used for branch connections, extensions, or terminations in piping systems where a compact threaded fitting is required.
Q2: What thread standards are available?
Standard options include NPT and BSP. Other thread types can be supplied upon request.
Q3: Can custom sizes or materials be provided?
Yes. OEM and custom production is available based on drawings or technical specifications.
Q4: Which industries typically use this fitting?
Oil & gas, petrochemical, marine, power generation, and industrial piping systems.
