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Summary
| Description |
English: Diagram of sparks for spark testing various types of steel. Key:
(A) High-carbon steel (B) Manganese steel (C) Tungsten steel (D) Molybdenum steel |
| Date | |
| Source | Oberg, Erik; Jones, Franklin Day (1918), Iron and Steel (1st ed.), The Industrial Press. |
| Author | Wizard191 |
| Other versions |
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Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1931, and if not then due to lack of notice or renewal. See this page for further explanation.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:40, 15 May 2009 | | 630 × 406 (156 KB) | Wizard191 | {{Information |Description={{en|1=Diagram of sparks for spark testing various types of steel. Key: (A) High-carbon steel (B) Manganese steel (C) Tungsten steel (D) Molybdenum steel}} |Source=Oberg, Erik; Jones, Franklin Day (1918), [http://books.google.c |
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