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Address: NO.288,YOUYI ROAD ,XI SHAN DISTRICT,WUXI CITY,CHINA
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Super Austenite 254SMO According to UNS- S313254 Stainless Steel Plate
Ultra 254 SMO is a 6% molybdenum and nitrogen-alloyed austenitic stainless steel with extremely high resistance to both uniform and localized corrosion. This product was developed especially for oil and gas offshore platforms and the pulp and paper industry.
| Product type | Finishes | Thickness | Width |
|---|---|---|---|
| Black hot band | 1U | 4,50-12,70 | 1000-1600 |
| Cold rolled coil | 2B, 2BB, 2E, 2R | 0,50-6,35 | 30-2040 |
| Cold rolled sheet | 2B, 2E, 2R | 0,50-6,35 | 300-2040 |
| Hot rolled coil, pickled | 1D | 4,50-6,00 | 50-1250 |
| Quarto plate | 1D | 8,00-20,00 | 400-2700 |
| Product type | Finishes | Thickness | Width |
|---|---|---|---|
| Cast billet | 127,00-180,00 | 127-180 | |
| Cast slab | 165,00-175,00 | 1000-1500 | |
| Cold drawn bar hex | 8,00-25,40 | 8-25 | |
| Cold drawn bar round | 6,00-25,40 | 6-25 | |
| Cold drawn bar square | 8,00-25,40 | 8-25 | |
| Forged billet round | 150,00-200,00 | 150-200 | |
| Forged billet square | 150,00-200,00 | 150-200 | |
| Hot rolled / Black bar round | 75,00-180,00 | 75-180 | |
| Peeled / turned bar round | 70,00-130,00 | 70-130 | |
| Rolled billet round | 90,00-150,00 | 90-150 | |
| Rolled billet square | 75,00-150,00 | 75-150 | |
| Wire rod (Rod coil) hex | 9,00-27,00 | 9-27 | |
| Wire rod (Rod coil) round | 5,00-27,00 | 5-27 | |
| Wire rod (Rod coil) square | 9,00-24,00 | 9-24 |
The addition of nitrogen to Ultra 254 SMO gives higher proof strength and tensile strength. Despite the greater strength, the possibilities for cold as well as hot forming are very good.
Mechanical properties at room temperature are shown in the table below.
| Standard | Rp0.2 | Rp1.0 | Rm | Elongation | Impact strength | Rockwell | HB | HV |
|---|---|---|---|---|---|---|---|---|
| MPa | MPa | MPa | % | J | ||||
| Product type: Cold rolled coil and sheet | ||||||||
| Typical (thickness 1 mm) | 375 | 415 | 735 | 60 | ||||
| ASME II A SA-240 | ≥ 310 | ≥ 655 | ≤ 223 | |||||
| ASTM A240 | ≥ 310 | ≥ 655 | ≤ 96HRB | ≤ 223 | ||||
| EN 10028-7 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| EN 10088-2 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| EN 10088-4 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| Product type: Hot rolled coil and sheet | ||||||||
| Typical (thickness 4 mm) | ||||||||
| ASME II A SA-240 | ≥ 310 | ≥ 655 | ≤ 223 | |||||
| ASTM A240 | ≥ 310 | ≥ 655 | ≤ 223 | |||||
| EN 10028-7 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| EN 10088-2 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| EN 10088-4 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| LINDE 44-57056 Rev 5 + SC 2015 | ≥ 320 | ≥ 350 | 650-850 | ≥ 35 | ||||
| Product type: Hot rolled quarto plate | ||||||||
| Typical (thickness 15 mm) | 320 | 350 | 680 | 50 | 160 | |||
| ASME II A SA-240 | ≥ 310 | ≥ 655 | ≤ 96HRB | ≤ 223 | ||||
| ASTM A240 | ≥ 310 | ≥ 655 | ≤ 96HRB | ≤ 223 | ||||
| EN 10028-7 | ≥ 300 | ≥ 340 | 650-850 | ≥ 40 | ||||
| EN 10088-2 | ≥ 300 | ≥ 340 | 650-850 | ≥ 40 | ||||
| EN 10088-4 | ≥ 300 | ≥ 340 | 650-850 | ≥ 40 | ||||
| LINDE 44-57056 Rev 5 + SC 2015 | ≥ 300 | ≥ 340 | 650-850 | ≥ 40 | ||||
| Product type: Wire rod | ||||||||
| Typical | 340 | 380 | 680 | 50 | ||||
1)Elongation according to EN standard: A80 for thickness below 3 mm. A for thickness = 3 mm. Elongation according to ASTM standard A2” or A50.
The typical values of some physical properties are given in the table below.
| Density | Modulus of elasticity | Thermal exp. at 100 °C | Thermal conductivity | Thermal capacity | Electrical resistance | Magnetizable |
|---|---|---|---|---|---|---|
| kg/dm3 | GPa | 10-6/°C | W/m°C | J/kg°C | µΩm | |
| 8.0 | 195 | 16,5 | 14 | 500 | 0.85 | No |
The most commonly used international product standards are given in the table below.
| Standard | Designation |
|---|---|
| ASME SA-240M Code Sect. II. Part A | UNS S31254 / 254 |
| ASTM A240/A240M | UNS S31254 / 254 |
| EN 10028-7, PED 2014/68/EU | 1.4547 |
| EN 10088-2 | 1.4547 |
| EN 10088-3 | 1.4547 |
| EN 10088-4 | 1.4547 |
| LINDE 44-57056 Rev 5 + SC 2015-10 Rev 1 | 1.4547 |
