Yuhong Group Co.,Ltd
| Product Name | Stainless Steel Flange |
| High Light | ASTM A182 F316L Stainless Steel Flange, Forged Nozzle Flange |
| Payment Terms | L/C,T/T |
| Type | Nozzle Flange |
| Delivery Time | 7 DAYS |
| Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Application | Petroleum,chemical,etc,fittings And Connection,beer |
| Face | RF, FF, RTJ |
| Packaging Details | Ply-wooden Case / pallet |
| Material | F316L |
| Standard | ASTM A182 / ASME SA182 |
| Model Number | ASTM A182 F316L Stainless Steel Nozzle Flange |
| Certification | ISO, API , ABS, DNV, GL , LR, NK |
| Brand Name | YUHONG |
| Place of Origin | CHINA |
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Product Specification
| Product Name | Stainless Steel Flange | High Light | ASTM A182 F316L Stainless Steel Flange, Forged Nozzle Flange |
| Payment Terms | L/C,T/T | Type | Nozzle Flange |
| Delivery Time | 7 DAYS | Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Application | Petroleum,chemical,etc,fittings And Connection,beer | Face | RF, FF, RTJ |
| Packaging Details | Ply-wooden Case / pallet | Material | F316L |
| Standard | ASTM A182 / ASME SA182 | Model Number | ASTM A182 F316L Stainless Steel Nozzle Flange |
| Certification | ISO, API , ABS, DNV, GL , LR, NK | Brand Name | YUHONG |
| Place of Origin | CHINA | ||
| High Light | ASME SA182 F316L stainless steel flange ，forged nozzle flange for pressure vessel ，stainless steel flange with ASME certification | ||
ASTM A182/ ASME SA182 F316L Stainless Steel Nozzle Flange Steel Forgings for Pressure Vessels
ASME SA182 F316L Stainless Steel Forged Nozzle Flange is a pressure-retaining, circular metallic connector manufactured by hot mechanical deformation (forging) from low-carbon austenitic stainless steel (Grade 316L), conforming to the ASME SA-182 material specification. It is designed to be permanently welded (as a neck/nozzle) or bolted to the shell or head of a pressure vessel, providing a standardized, leak-proof interface for attaching piping systems, instrumentation, or access openings, while withstanding internal pressure, external loads, and corrosive process media.
Key Advantages for Pressure Vessel Application
Excellent Corrosion Resistance: The 2-3% Molybdenum content provides superior resistance to pitting and crevice corrosion from chlorides, acids (sulfuric, acetic), and seawater environments.
High Weldability: The low carbon content (0.03% max) prevents carbide precipitation at grain boundaries during welding (sensitization), eliminating the need for post-weld annealing in most thin sections.
Low-Temperature Toughness: Maintains excellent impact properties even at cryogenic temperatures (-196°C / -320°F).
Resistance to Oxidation: Operates reliably up to approximately 870°C (1600°F) in intermittent service.
| Scenario | Recommendation |
|---|---|
| Project in Europe, Asia, or spec calls for PN | Use EN 1092-1 |
| Project in North America, or spec calls for Class | Use ASME B16.5 / B16.47 |
| Connecting to existing flanges | Must match the standard – do not mix EN and ASME directly |
| International oil & gas (offshore) | Often ASME, but some European operators accept EN with PN/Class conversion |
|
* Never directly bolt an EN 1092-1 flange to an ASME B16.5 flange. Bolt circle diameters, hole sizes, and facing dimensions are different. Use a proper adapter flange or a custom-made transition piece designed to both standards. |
|
Equivalent Materials of ASME SA182 F316L Stainless Steel Flange Forged Nozzle Flange for Pressure Vessel
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 316L | 1.4404 | S31603 | SUS 316L | 316S11 | 03Ch17N14M3 | Z3CND17‐11‐02 | X2CrNiMo17-12-2 |
Chemical Composition % of ASME SA182 F316L Stainless Steel Flange Forged Nozzle Flange for Pressure Vessel
| SS | UNS | C | MN | P | S | SI | CR | NI | MO | NB | TI |
| F316L | S31603 | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-15.0 | 2.0-3.0 | --- | --- |
Inspection & Non-Destructive Examination (NDE)
Per ASME SA182 and customer specifications, the following tests are mandatory or optional:
PMI (Positive Material Identification) – to verify chemical composition (XRF).
Hydrostatic Test – to confirm pressure integrity (usually performed on the final welded vessel, but flange forging is tested for soundness).
Ultrasonic Test (UT) – for detecting internal laminations or voids (per SA-388).
Liquid Penetrant Examination (PT) – for detecting surface defects on the machined flange faces and hub.
Dimensional Check – verifying bolt circle, diameter, thickness, hub angle, and concentricity.
Application
Oil & Gas (offshore and onshore platforms)
Petrochemical refineries (distillation columns, reactors)
Chemical processing (handling organic acids)
Pharmaceutical and Food processing (sanitary versions)
Power generation (steam drums, heat exchangers)
Desalination and marine equipment
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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