DIPTI METAL INDUSTRIES
Dipti Metal Industries is a specialist ISO 9001:2015 certified manufacturer of ASTM A182 F73 super austenitic stainless steel flanges. Grade F73 (UNS S33425) is a high-alloy nitrogen-strengthened stainless steel containing significant levels of Chromium (20%) and Nickel (25%), providing exceptional resistance to pitting and crevice corrosion in highly corrosive mineral acids and seawater. We supply premium ASTM A182 F73 forged flanges for chemical processing, offshore exploration, and flue gas desulfurization systems with full heat number traceability.
| Element | ASTM A182 F73 (%) |
|---|---|
| Carbon (C) | 0.030 Max |
| Chromium (Cr) | 19.0 - 21.0 |
| Nickel (Ni) | 24.0 - 26.0 |
| Molybdenum (Mo) | 6.0 - 7.0 |
| Nitrogen (N) | 0.15 - 0.25 |
| Copper (Cu) | 1.0 - 2.0 |
| Iron (Fe) | Balance |
| Property | ASTM A182 F73 Value |
|---|---|
| Tensile Strength (min) | 550 MPa (80 ksi) |
| Yield Strength (min) | 240 MPa (35 ksi) |
| Elongation (min) | 30% |
| Hardness (max) | 201 HBW |
| PREN Value | ≥ 40.0 |
| Flange Type | ASTM A182 F73 Standards | Size Range | Rating / Class |
|---|---|---|---|
| ASTM A182 F73 Weld Neck | ASME B16.5 | 1/2" to 24" | 150# to 2500# |
| ASTM A182 F73 Slip On | ASME B16.5 | 1/2" to 24" | 150# to 1500# |
| ASTM A182 F73 Blind | ASME B16.47 | 26" to 60" | Series A & B |
| ASTM A182 F73 Socket Weld | ASME B16.11 | 1/2" to 4" | 3000# to 9000# |
| ASTM A182 F73 RTJ | API 6A / ASME | All Sizes | Ring Type Joint |
Dipti Metal Industries
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, India
Email: info@diptimetal.com
Phone: +91-22-66381301
WhatsApp: +91-9975266499