ASTM A182 F304 / F304L Weld Neck Flange
ASME B16.5 WNRF Stainless Steel Flange
ASTM A182 F304 / F304L weld neck flanges are forged austenitic stainless steel flanges designed for high-pressure, high-temperature, and critical piping systems.
Manufactured in accordance with ASME B16.5, these Weld Neck Raised Face (WNRF) flanges provide excellent structural integrity, smooth stress distribution, and reliable sealing performance.
F304 / F304L weld neck flanges are widely used in chemical processing, oil & gas, petrochemical, power generation, food processing, and general industrial pipelines.
We are a China professional Manufacturer of A182 F304/F304L Flange,SS304 Flange,ASME B16.5 A182 F304L Flange,Weld neck flange,SORF flange,SS304 Blind Flange,A182 F304L Thread Flange
A182 F304L Flanges is available in EN 1092-1,DIN,ASME B16.5,ASME B16.47,JIS B2220 Standard.
SS304 stainless steel is the most common stainless steel. The steel contains both chromium (between 18% and 20%) and nickel (between 8% and 10.5%) metals
Dimensions : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN 1092-1 Flanges etc.
Standards : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Size : 1/8″ NB TO 48″NB.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
EN 1092-1 type 01,EN 1092-1 type 02,EN 1092-1 type 05,EN 1092-1 type 11 Flange
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
BS : BS4504 , BS4504, BS1560, BS10
| EN | ASTM/ASME |
|---|---|
| 1.4301 / 1.4307 | AISI 304 / 304L |
| 1.4401 / 1.4404 | AISI 316 / 316L |
| 1.4541 | AISI 321 |
| 1.4571 | AISI 316Ti |
A182 F304L Flange Chemical Composition
| Gr. | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| A182 F304L | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| Maximum | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
SS 304L Flanges Mechanical Properties
| Gr. | Tensile Strength (MPa) minimum | Yield Strength 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SA A182 F304L | 485 | 170 | 40 | 92 | 201 |


How to order our SS304 Flanges,ASME B16.5 A182 F304L Flanges?
Material: AISI 304L (EN 1.4307 / UNS S30403),A182 F304/304L
Size: 16″ (DN400)
Type:Weld neck flange
Standard: ASME B16.5
Pressure: 150lbs
Surface finish facing: Raise Face