Innovations to Enhance Rail Performance - Unife
Innovations to Enhance Rail Performance - Unife
Innovations to Enhance Rail Performance - Unife
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Innovative <strong>Rail</strong> Steel Grades - Corus Bainitic <strong>Rail</strong><br />
Grade B320 Grade B360 Grade B440<br />
• Corus B320 has been installed in Eurotunnel (4200m radius)<br />
• <strong>Performance</strong> AFTER >250 MGT<br />
R260 – Visible RCF Present<br />
Corus B320 – Virtually No RCF Present<br />
Increasing Hardness of Bainitic Grades<br />
• Bainitic <strong>Rail</strong> Steels<br />
• Conventional bainitic structure – Ferrite and Carbide<br />
• Have been tried in the past but offered no real advantages<br />
• Low-carbon carbide free structure – Ferrite and Austenite<br />
• Control of composition & residual stress <strong>to</strong> eliminate risks from susceptibility <strong>to</strong><br />
Stress Corrosion Cracking<br />
• Good performance in track tests in SNCF (B320), SBB (B360), Eurotunnel (B320)<br />
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