Report of Investigations 8080: Preventing Formation of Copper Alloys of Tin, Antimony, and Arsenic on Steel Surfaces During Reheating to Reduce Hot Shortness

Details

• Personal Author:
  Copeland, Mark I. ; Howe, John S.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  The Bureau of Mines discovered that silicon and nickel additions can prevent the formation of copper alloys of sn, sb, and as on the surface of steel during reheating to hot-working temperatures. When molten, these copper alloys cause surface hot shortness during hot working. Wrought steels were reheated isothermally and by simulated industrial practice; the resulting surfaces were metallographically evaluated. The steels contained, in weight-percent, 0.20 C, 0.45 Mn, and up to 1.00 Si, 1.00 Cu, and 0.15 Ni, and up to 0.30 Sn, sb, or as. The larger the cu, sn, sb, and as content of the steels, the greater the amount of silicon necessary to prevent copper alloy formation. A content of 0.10 Ni considerably decreased the amount of silicon necessary for copper steels containing tin and antimony but not for those containing arsenic. Theories for the beneficial effect of silicon and nickel additions are presented. [Description provided by NIOSH]
• Subjects:
  Metals Metal Workers Mining Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• ISSN:
  1066-5552 (print)
• Publisher:
  United States. Bureau of Mines
• Document Type:
  Text
• Genre:
  Case Report
• Rights:
  Public Domain
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  ALRC - Albany Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  32 pdf pages
• NIOSHTIC Number:
  nn:10007589
• NTIS Accession Number:
  PB-247158
• Citation:
  NTIS: PB 247 158 :23 pages
• Federal Fiscal Year:
  1975
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 247 158
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:bfb9e62689132a24396fe0825194a5d428ef44b46a4531e94c90ca4945950270bea828c029a3ff3eac3140f5af73d6a4d5a61695b6529fa31eed8b86cacf73f2
• Download URL:
  https://stacks.cdc.gov/view/cdc/201833/cdc_201833_DS1.pdf
• File Type:
  [PDF - 1.29 MB ]