XIANGJI HEAVY INDUSTRY flanges are manufactured strictly in accordance with international standards, ensuring high strength, excellent sealing performance and long service life. Our flanges are widely used in petrochemical, power, shipbuilding, water treatment, and other industrial piping systems.
Superior material and processing for high pressure resistance.
Strict dimensional control ensures perfect fit and easy installation.
Various face types and pressure ratings meet diverse application needs.
Comply with ASTM/ASME, JIS and GB standards. Trusted worldwide.
| SPECIFICATIONS | ASTM / ASME (USA STANDARD) | JIS (JAPANESE INDUSTRIAL STANDARD) | GB (CHINESE NATIONAL STANDARD) |
|---|---|---|---|
| Applicable Standards | ASME B16.5 (Pipe Flanges) ASME B16.47 Series A/B (Large Diameter Flanges) | JIS B2220 (Pipe Flanges) | GB/T 9112 – GB/T 9124 (Steel Pipe Flanges) |
| Size Range | NPS 1/2" – 24" (DN15 – DN600) | 10A – 600A (DN10 – DN600) | DN15 – DN600 |
| Pressure Rating | Class 150 – 2500 (PN16 – PN420) | 0.6 – 20K, 30K | PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0, PN6.4, PN10.0, PN16.0, PN25.0, PN40.0 |
| Face Type | RF, FF, RTJ, TG, FM | RF, FF, RTJ | RF, FF, RTJ, TG, FM |
| Flange Type | Weld Neck (WN), Slip On (SO), Blind (BL), Threaded (TH), Socket Weld (SW), Lap Joint (LJ) | Weld Neck (WN), Slip On (SO), Blind (BL), Threaded (TH), Socket Weld (SW), Lap Joint (LJ) | Weld Neck (WN), Slip On (SO), Blind (BL), Threaded (TH), Socket Weld (SW), Lap Joint (LJ) |
| Material | Carbon Steel: A105, A350 LF2, A350 LF3, etc. Stainless Steel: A182 F304/304L, F316/316L, etc. Alloy Steel: A182 F11/F22/F5/F9, etc. | Carbon Steel: SS400, SF440, etc. Stainless Steel: SUS304, SUS304L, SUS316, SUS316L, etc. | Carbon Steel: 20#, 16Mn, Q235B, etc. Stainless Steel: 06Cr19Ni10, 022Cr17Ni12Mo2, 00Cr17Ni14Mo2, etc. |
| Surface Treatment | Black Paint, Anti-rust Oil, Hot-dip Galvanized, Electric Galvanized, etc. | Black Paint, Anti-rust Oil, Hot-dip Galvanized, Electric Galvanized, etc. | Black Paint, Anti-rust Oil, Hot-dip Galvanized, Electric Galvanized, etc. |














