| 摘要 |
<p>A cast iron alloy composition comprising 2.5-3.5% carbon, 0.5-1.0% manganese, 0.25-1.5% silicon, 13-19% chromium, and 0.8-3.0% nickel, the balance essentially being iron, this composition being machinable in the annealed condition and abrasion-resistant in the hardened condition.</p><p>The alloy assumes its annealed condition by heating to above the austenitizing temperature followed by furnace- cooling at a rate between 100°C/hr and 350°C/hr; it assumes the hardened condition when the heating is followed by aircooling.</p> |
