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Name | 254SMO Hex Nut |
Standard | DIN934,ISO4032,ASME B18.2.2 |
Size Range | M5-M64 or non-standard as requested |
Finish | Bright&Clean |
Marking | HT&FST or customization |
Material | 254SMO,UNS S31254,1.4547,F44 |
Grade | Grade 70,Grade 8MLCuN |
Certificates | EN10204-3.1B |
Non-standards | OEM is available, according to drawing or samples |
Samples | Samples available |
Package | Bulk in box and then in cartons, then on pallets, or according to customers' requirement. |
Payment | T/T,Western Union |
254SMO (designation UNS S31254 / DIN 1.4547) is a copper- and nitrogen-alloyed chromium-nickel-molybdenum super austenitic stainless steel. Its high chromium, molybdenum, and nitrogen content makes it particularly suitable for high chloride environments, exhibiting significantly superior chloride corrosion resistance compared to 904L, 316L, 20 Alloy, and 825 Alloy.
This material offers excellent weldability and can be welded to other common austenitic stainless steels. It demonstrates outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking.
254SMO finds extensive application across multiple industrial sectors, primarily including: seawater treatment and desalination equipment, pulp and paper industries, petroleum refineries, chemical processing equipment, and food processing machinery.
Examples of applications :
• Petroleum production
• Saltwater handling
• Pulp mill bleach systems
• Tall oil distillation columns
• Desalination equipment
• Food and chemical processing equipment
• Flue gas desulphurization scrubbers
• Offshore oil & gas production equipment
Similar brand of corrosion resistant alloy 254SMO
| UNS | AISI/ASME | ID | W.Nr |
| S31254 | 254SMO | F44 | 1.4547 |
Chemical composition of corrosion resistant alloy 254SMO
| Alloy | % | Ni | Cd | Mo | Cu | N | C | Mn | Si | P | S |
| 254SMO | Min. | 17.5 | 19.5 | 6 | 0.5 | 0.18 | |||||
| Max. | 18.5 | 20.5 | 6.5 | 1.0 | 0.22 | 0.02 | 1 | 0.8 | 0.03 | 0.01 |
Physical properties of corrosion resistant alloy 254SMO
| Density | 8.0 g/cm³ |
| Melting point | 1320~1390 ºC |
Minimum value of mechanical properties of corrosion resistant alloy 254SMO at room temperature
| Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation A 5 % |
| 650 | 300 | 35 |
Name | 254SMO Hex Nut |
Standard | DIN934,ISO4032,ASME B18.2.2 |
Size Range | M5-M64 or non-standard as requested |
Finish | Bright&Clean |
Marking | HT&FST or customization |
Material | 254SMO,UNS S31254,1.4547,F44 |
Grade | Grade 70,Grade 8MLCuN |
Certificates | EN10204-3.1B |
Non-standards | OEM is available, according to drawing or samples |
Samples | Samples available |
Package | Bulk in box and then in cartons, then on pallets, or according to customers' requirement. |
Payment | T/T,Western Union |
254SMO (designation UNS S31254 / DIN 1.4547) is a copper- and nitrogen-alloyed chromium-nickel-molybdenum super austenitic stainless steel. Its high chromium, molybdenum, and nitrogen content makes it particularly suitable for high chloride environments, exhibiting significantly superior chloride corrosion resistance compared to 904L, 316L, 20 Alloy, and 825 Alloy.
This material offers excellent weldability and can be welded to other common austenitic stainless steels. It demonstrates outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking.
254SMO finds extensive application across multiple industrial sectors, primarily including: seawater treatment and desalination equipment, pulp and paper industries, petroleum refineries, chemical processing equipment, and food processing machinery.
Examples of applications :
• Petroleum production
• Saltwater handling
• Pulp mill bleach systems
• Tall oil distillation columns
• Desalination equipment
• Food and chemical processing equipment
• Flue gas desulphurization scrubbers
• Offshore oil & gas production equipment
Similar brand of corrosion resistant alloy 254SMO
| UNS | AISI/ASME | ID | W.Nr |
| S31254 | 254SMO | F44 | 1.4547 |
Chemical composition of corrosion resistant alloy 254SMO
| Alloy | % | Ni | Cd | Mo | Cu | N | C | Mn | Si | P | S |
| 254SMO | Min. | 17.5 | 19.5 | 6 | 0.5 | 0.18 | |||||
| Max. | 18.5 | 20.5 | 6.5 | 1.0 | 0.22 | 0.02 | 1 | 0.8 | 0.03 | 0.01 |
Physical properties of corrosion resistant alloy 254SMO
| Density | 8.0 g/cm³ |
| Melting point | 1320~1390 ºC |
Minimum value of mechanical properties of corrosion resistant alloy 254SMO at room temperature
| Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation A 5 % |
| 650 | 300 | 35 |
