254 SMO Vented Screws
Brand RAYCHIN
Product origin China
Delivery time 5-35 DAYS
254 SMO vented screws provide a way to out-gas application contaminents through a vertical hole drilled from the screw head through the threaded shaft. Vented screws are ideal for vacuums / high vacuums. Nimonic vented screws are available a variety of head styles.
Vented Screws | 254 SMO vented screws provide a way to out-gas application contaminents through a vertical hole drilled from the screw head through the threaded shaft. Vented screws are ideal for vacuums / high vacuums. Nimonic vented screws are available a variety of head styles. |
254 SMO (1.4547) Chemistry & Specifications
254 SMO Specifications: UNS S31254, EN Number 1.4547
254 SMO | Fe | Cr | Ni | Mo | Cu | Mn | Si | N | P | C | S |
Min % | - | 19.5 | 17.5 | 6.0 | 0.5 | - | - | 0.18 | - | - | - |
Max % | Bal | 20.5 | 18.5 | 6.5 | 1.0 | 1.0 | 0.8 | 0.20 | 0.03 | 0.02 | 0.01 |
254 SMO Mechanical Properties
Properties | Metric | Imperial |
Tensile Strength | 680 Mpa | 98.6 ksi |
Yield Strength | 300 Mpa | 43.5 ksi |
Elongation at Break | 50% | 50% |
Modulus of Elasticity | 195 GPa | 28300 ksi |
Shear modulus | 75 GPa | 10900 ksi |
254 SMO Seawater Corrosion
Crevice Corrosion Tests in Seawater: Percentage of Sites Attached
UNS | % Sites Attacked | |
AL6XN | N08367 | 0% |
Hastelloy C276 | N10276 | 0% |
254 SMO | S31254 | 6% |
1925hMo | N08926 | 6% |
316 / 316L | S31603 | 75% |
