C&N Industiral,huitong limtied is professional pipe,flange and fitting manufacturer,our products approved by PDO, SADARA, SWCC,PDO etc.
Coupling NPT P355NH
Information
- size: 0.25”, 0.75”, 2”
- thread: NPT
- material: properties of P355NH low temperature, high pressure)
- welding steel
- pressure class: 3000lbs / 206bar
- temperature application range: from -46°C to +343°C
- impact test at – 46°C
- certificate 3.1 on request (free of charge)
- application: industry, pressure vessels, machine manufacturing, hydraulic installations, outdoor installations, for oil and gas transmission
- origin: European Union
Other name: Coupling NPT P355NH threaded coupling carbon steel fittings, female threat F NPT tapered, thread welding socket straight coupling, special coupling
Coupling NPT P355NH – belongs to threaded fittings “high-pressure fittings.” The couplers are available in all inch sizes. Each coupler is stamped with size, grade, melt and pressure class. It guarantees the safety and durability of the installation. All threaded fittings are certified 3.1.
P355NH is a Fine-grain structural steel for pressure vessels.
Good weldability and good cold and hot-rolling properties under normalised conditions.
P355NH Steel is a normalised steel grade with a minimum yield strength of 275-460 N/mm² we also can supply P355N, P355NL1, P355NL2
P355NH Chemical Composition Max (%)
| Grade | C | Si | Mn | P | S | Al(min) | N |
| P355NH | 0.20 | 0.50 | 0.9-1.70 | 0.03 | 0.025 | 0.02 | |
| Cr | Cu | Mo | Nb | Ni | Ti | V | |
| 0.30 | 0.30 | 0.08 | 0.005 | 0.50 | 0.03 | 0.10 |
Our offer includes a wide range high-pressure couplings and fittings. If you have any questions contact us.
