ASME SA105N SELF REINFORCED NOZZLE STEEL FLANGE FOR PRESSURE VESSEL
A carbon steel self-reinforced nozzle is a heavy-duty nozzle designed with integrated structural reinforcement to handle high-pressure, high-temperature, and abrasive environments without requiring external supports. Carbon steel is chosen for its strength, machinability, and cost-effectiveness, while the self-reinforcing design enhances durability and performance.
Key Features of a Carbon Steel Self-Reinforced Nozzle
1. Built-In Reinforcement Techniques
- Thickened walls or tapered internal ribs to resist deformation under pressure.
- Forged construction (e.g., hot/cold forging) for superior grain structure and strength.
- Heat-treated zones(e.g., quenched & tempered 4140 steel) for high fatigue resistance.
2. High Pressure & Impact Resistance
- Handles hydraulic pressures (10,000+ PSI) in oil/gas, waterjet cutting, or mining.
- Resists mechanical shock (e.g., abrasive slurry blasting, drilling mud nozzles).
3. Thermal Stability
- Withstands moderate-high temps (up to 500–700°F depending on grade).
- Hardfacing coatings (e.g., tungsten carbide overlay) for extreme wear/heat applications.
4. Cost-Effective Durability
- More affordable than stainless steel while offering high strength-to-weight ratios.
Manufacturing Methods
| Process | Details | Best For |
| CNC Machining | Precision-cut from solid bar stock. | Custom prototypes/low-volume production. |
| Forging | Hot/cold forged for dense grain structure. | High-stress industrial nozzles. |
| Laser/Wire Cutting | For pre-machining near-net shapes. | Complex geometries. |
| Welded Construction | Multi-piece fabrication with reinforced seams. | Large-scale nozzles (e.g., mining). |
Common Applications
- Oil & Gas:Drill bit nozzles, choke valves, fracking equipment.
- Mining/Blasting:Sandblasting, slurry transport, rock-cutting nozzles.
- Waterjet Cutting: High-pressure abrasive waterjet orifices.
- Agriculture: Heavy-duty spray nozzles for pesticides/fertilizers.
- Firefighting: High-flow water/foam discharge nozzles.
Advantages Over Standard Carbon Steel Nozzles
- Extended service life (reduced cracking/erosion at stress points).
- Lower maintenance (integrated reinforcement avoids bolt-on failures).
- Optimized fluid dynamics (ribbed interiors reduce turbulence).
- Cost savings vs. exotic alloys (with comparable strength in many uses).
| Carbon & Low Temperature | Chromiun | Stainless & Duplex | Copper& Bronze | Titanium | Ni-Alloy |
| A105 /A105N | A182-F1 | A182-F304 | A182-F347H | SB151-C70600 | SB381-GR.F1 | B564-N02200 |
| A516-GR.70 | A182-F11 | A182-F304L | A182-F904L | SB151-C71500 | SB381-GR.F3 | B564-N06022 |
| A350-LF2 | A182-F12 | A182-F304H | A182-F44 | SB151-C71520 | SB381-GR.F5 | B564-N10276 |
| | A182-F22 | A182-F304N | A182-F51 | C44300 | | B564-N04400 |
| | A182-F5 | A182-F309S | A182-F53 | C68700 | | B564-N06600 |
| | A182-F9 | A182-F310S | A182-F55 | C71640 | | B564-N06601 |
| | A182-F91 | A182-F310H | A182-F60 | | | B564-N06625 |
| | | A182-F316 | | | | B564-N08800 |
| | | A182-F316L | | | | B564-N08810 |
| | | A182-F316Ti | | | | B564-N08811 |
| | | A182-F316H | | | | B564-N08825 |
| | | A182-F317L | | | | B564-N10665 |
| | | A182-F321 | | | | B564-N10675 |
| | | A182-F321H | | | | B160-N02201 |
| | | A182-F347 | | | | B462-N08020 |
Type of nozzles:
- LWN Nozzle, “HB” Heavy Barrel Nozzle, “F” Full Body Nozzle
- Variable Body “V1”, “V2”, “V3”
- Self reinforced neck
- Stub End Forging / Studding Outlets
- Design Nozzles per your job
