Sodium perborate as a bleach

• Publisher: Elsevier Science
• Year: 1912
• Tongue: English
• Weight: 73 KB
• Volume: 174
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(12)91211-9

✦ Synopsis

ingot of manganese steel is as brittle as glass, but when re-heated to a temperature of IOOO ° C. or higher, and suddenly chilled by plunging into, water, it becomes as ductile as soft carbon steel or wrought iron, and has three times their tensile strength. Manganese steel cannot be forged except with great difficulty, and, as there is no method known of softening it, cannot be machined for practical purposes. Articles made of manganese steel are therefore cast, re-heated, and chilled.