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Coupling 1/2" NPT Class 6000 (413 bar) Stainless Steel 316L (1.4404)
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Description
Coupling 1/2" NPT Class 6000 (413 bar) Stainless Steel 316L (1.4404)
- Size: 1/2" (thread diameter: 18.3–18.7 mm)
- Thread type: NPT (tapered thread)
- Material: 316L stainless steel (1.4404)
- Pressure class: Class 6000 (413 bar)
- Dimension D: 38 mm
- Dimension W: 48 mm
- Material grade: ASTM A182 F316L / ASME SA182 F316L
- 3.1 material certificate available on request (free of charge)
- Certification: EN 10204 3.1:2004, PED 2014/68/EU, ANSI B16.11, MSS SP-83
- Origin: European Union

Alternative Name
Coupling 1/2" NPT Class 6000 Stainless Steel 316L (1.4404), High-Pressure NPT Coupling, Female Threaded Coupling, SS316L Coupling, ASTM A182 F316L Coupling, X2CrNiMo17-12-2 Coupling
Information
The 1/2" NPT Class 6000 (413 bar) Coupling is manufactured from 316L stainless steel (1.4404) and is designed for high-pressure threaded piping systems. Its heavy-wall construction provides exceptional mechanical strength, allowing safe operation at pressures up to 413 bar.
The fitting features female NPT tapered threads on both ends, ensuring secure and leak-tight threaded connections in demanding industrial applications.
Material
316 / 316L stainless steel is one of the most widely used austenitic stainless steels. It offers excellent corrosion resistance, outstanding weldability, and excellent forming properties, making it ideal for demanding industrial environments.
Equivalent material designations include:
- DIN 1.4401
- DIN 1.4404
- SS316
- SS316L
- AISI 316
- AISI 316L
- X2CrNiMo17-12-2
Advantages
- Stainless steel (inox)
- Female NPT tapered threads
- Pressure class: Class 6000 (413 bar)
- Excellent corrosion resistance
- Excellent weldability
- Non-magnetic material
- Excellent ductility and impact resistance
- Wide operating temperature range
- 3.1 material certificate available on request
Certifications
- EN 10204 3.1:2004
- PED 2014/68/EU
- ANSI B16.11
- MSS SP-83
Applications
Heat exchangers, pharmaceutical equipment, dairy installations, breweries, marine fittings, coastal structures, food processing, high-pressure piping systems, and industrial process installations.
We also offer NPT stainless steel couplings in many other sizes. If you have any questions, please contact us. Call +48 63 261 42 02 or email biuro@polberis.pl.
Learn more about our threaded fittings here >>
Technical data
| Coupling Type | Coupling |
| Material | Stainless Steel |
| Pressure | Pressure Range > 251 bar |
| Connection 1 | 1/2'' |
| Thread Type – Connection 1 | NPT Thread |
| Connection 2 | 1/2'' |
| Thread Type – Connection 2 | NPT Thread |
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