Alloy 28
Density: 8.0 g/cm³
Equivalent designations: Alloy 28, UNS N08028, W. Nr. 1.4563, Sanicro 28
Product introduction
Sanicro 28 is a high-alloy multi-purpose austenitic stainless steel for service in highly corrosive conditions. The grade is characterized by:
Very high corrosion resistance in strong acids
Very good resistance to stress corrosion cracking (SCC) and intergranular corrosion in various environments
High resistance to pitting and crevice corrosion
Welded pipe/tube
Seamless pipe/tube
Pipe fittings
Flanges
Bar/Profiles
Sheet/ Plate/Coil/Strip
Wire/Wire rope
Forgings
Welding Rod
Fastener
Very high corrosion resistance in strong acids
Very good resistance to stress corrosion cracking (SCC) and intergranular corrosion in various environments
High resistance to pitting and crevice corrosion
Good weldability
Welded pipe/tube
Seamless pipe/tube
Pipe fittings
Flanges
Bar/Profiles
Sheet/ Plate/Coil/Strip
Wire/Wire rope
Forgings
Welding Rod
Fastener
Chemical composition:
| Grade | Chemical Component % | |||||||||
| C | Si | Mn | S | P | Cr | Ni | Mo | Fe | Cu | |
| Alloy 28 | Max 0.03 | Max 1.0 | Max 2.5 | Max 0.03 | Max 0.03 | 26.0-28.0 | 30.0-34.0 | 3.0-4.0 | Balance | 0.6-1.4 |
Product standards:
| Seamless tube and pipe: | ASTM B 668, EN 10216-5, SEW 400 (Feb 1991), SS 14 25 84, NFA 49-217 | ||||||
| Plate, sheet and strip: | ASTM B 709, EN 10088-2, SS 14 25 84 | ||||||
| Bar steel: | EN 10088-3, EN 10272, SS 14 25 84 | ||||||
| Fittings: | ASTM A 403 (chemical composition and mechanical properties according to ASTM B668) | ||||||
Application:
1. Oil and gas, processing and refining
2. Power generation
3. Boiler and Pressure Vessel