254 SMO Security Screws
Brand RAYCHIN
Product origin China
Delivery time 5-35 DAYS
254 SMO set screws are a headless fastener with a slotted or socket driver on one end and a special tip on the other. Set screws are available with cup, cone, flat, dog and half-dog points.
254 SMO Security Screws
 Security Screws | 254 SMO tamper-proof security screws provide protection from unwanted removal because they cannot be unfastened using an common driver. Tamper-proof screws are produced in a wide variety of head styles, as well as custom per print. |
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% |
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