 | Henry Colthurst Godwin - 1902 - 386 Seiten
...the "limnoria." They both work from about the high-water mark to the surface of the mud. 228. To test Steel and Iron. — Scientific American. — Nitric...the contrary, remains bright if touched with nitric nciil. Good steel in its soft state has a curved fracture and a uniform gray lustre; in its hard state,... | |
 | Leonard Elliott Brookes - 1906 - 664 Seiten
...ordinary steel, the carbon of which is replaced by other chemical elements. To test steel and iron. Nitric acid will produce a black spot on steel, the...its soft state has a curved fracture and a uniform gray lustre, in its hard state a dull, silvery, unifo'rm white. Cracks, threads or sparkling partieles... | |
 | Calvin Franklin Swingle, Frederick John Prior - 1906 - 676 Seiten
...ordinary steel, the carbon of which is replaced by other chemical elements. To test steel and iron. Nitric acid will produce a black spot on steel, the...nitric acid. Good steel in its soft state has a curved fraoture and a uniform gray lustre, in its hard state a dull, silvery, uniform white. Cracks, threads... | |
 | William Henry Dooley - 1915 - 364 Seiten
...Steel may be recognized by the appearance of a dark spot when nitric acid is placed on its surface. The darker the spot, the harder the steel. Iron, on the contrary, shows no sign when touched with nitric acid. Good steel will not stand a high heat, but will crumble... | |
 | William Henry Dooley - 1915 - 364 Seiten
...Steel may be recognized by the appearance of a dark spot when nitric acid is placed on its surface. The darker the spot, the harder the steel. Iron, on the contrary, shows no sign when touched with nitric acid. Good steel will not stand a high heat, but will crumble... | |
 | William Henry Dooley - 1919 - 498 Seiten
...to set up strains that show themselves when the steel is hardened. 474. Test of Steel Strength.— Nitric acid will produce a black spot on steel; the...with nitric acid. Good steel in its soft state has a clean fracture and a uniform gray luster; in its hard state, a dull, silvery, uniform white luster.... | |
 | Henry O'Connor - 1928 - 474 Seiten
...of hot-short iron. Good iron is readily heated soft under the hammer, and throws out but few sparks. Nitric acid will produce a black spot on steel ; the...its soft state has a curved fracture and a uniform grey lustre ; in its hard state, a dull, silvery, uniform white. Cracks, thread, or sparkling particles... | |
 | 1891 - 1200 Seiten
...of hot-short iron. Good iron is readily heated soft under the hammer, and throws out but few sparks. Nitric acid will produce a black spot on steel ; the...its soft state has a curved fracture and a uniform gray luster; in itshard state, a dull, silvery, uniform white. Cracks, threads, or sparkling particles... | |
| |
Nitric acid will produce a black spot on steel; the darker the spot the harder the steel. Iron, on the contrary, remains bright if touched with nitric acid. Good steel in its soft state has a curved fracture and a uniform gray lustre; in its hard state,... 
