Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A240 F904L AWWA C207 Class D Ring Flanges Stainless Steel SOFF Flanges
AWWA C207 Table 2 Class D Steel Ring Flange is typically made from carbon steel/stainless steel/alloy steel, Class D flanges are robust and designed to withstand significant pressure and environmental conditions. Commonly used in waterworks systems, including pipelines, treatment plants, and other infrastructure where reliable connections are essential. The specific dimensions such as bolt holes and flange thickness can be found in Table 2 of the AWWA C207 standard. This usually includes: bolt hole diameter, overall flange diameter and flange thickness. YUHONG can provide various materials such as stainless steel, nickel alloy, duplex steel and other alloy steels to meet your diffierent requirements.
Stainless Steel Flange ASME SA182 F904L Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR | JIS | BS | KS |
| SS 904L | 1.4539 | N08904 | X1NiCrMoCu25-20-5 | Z2 NCDU 25-20 | SUS 904L | 904S13 | STS 317J5L |
Chemical Composition of Grade 904L Stainless Steel Flanges
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
AWWA C207 Flanges Specification and Standards
| Specifications | AWWA C207 Flanges |
|---|---|
| AWWA Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges. |
| ASME B16.5 AWWA Flange size range | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| AWWA Flange Standard AWWA | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K/ Class150, 300, 600, 900, |
| Main Types | Forged / Threaded / Screwed / Plate |
| Most common types of AWWA Flanges |
|
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove |
| AWWA Flanges Standard | ANSI DIN, GOST, AWWA, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
|
Liquid Penetrant Testing (NDT)
Applications
Water Distribution Systems: Class D slip-on flanges are widely used in water distribution systems, including municipal water supply networks, industrial water systems, and irrigation systems. They are used to connect pipes, valves, and fittings, allowing for easy installation, maintenance, and repair of the pipeline system.