Nickel

Nickel

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ...driving shafts, spindles, bolts, etc., and for casehardened pivot pins, and cam rollers. The' high' nickel-chromium steels are used in the manufacture of heat-treated gears. The latter compositions are the principal ones used also in the manufacture of both armor plate and of armor-piercing projectiles. The physical Fig. 23.--Mechanical properties of heat-treated "low" nickel-chromium steel; Society of Automotive Engineers, (Bullens, 516) properties of typical compositions of these steels are given in Figs. 23 and 24 in the heat-treated condition. (c) Nickel Steel For Casehardening.--The principal properties of nickel steel which make it invaluable for casehardening are noted above under (4); in addition there exists the possibility in the case of high nickel steels (nickel, 5 to 7 per cent) of obtaining an air or self-hardening casehardened surface layer together with a tough pearlitic core. Typical compositions used for casehardening are given below: Per cent Nickel 1. s-3. s 1 T., __. ooo I Low nickel Carbon 10-. 20) Nickel 5-7 TT., ., __. ' High nickel Carbon 10-15 j (d) Mayari Steel From Cuban Ores.--This is a natural alloy produced in the blast furnace and open-hearth furnace; it has 17634--21 5 been used principally in the form of rails and track bolts. Its composition averages: Percent Nickel i. o-1.5 Chromium 20-. 70 (e) High-nickel STEELS--These are perhaps more properly ferronickel alloys. Percent Nickel 25-40 Carbon 3-.5 These alloys are austenitic and not subject to heat treatment; they are, however, naturally quite tough and strong, have a low FlG. 24.--Mechanical properties of heat-treated "high" nickel-chromium steels; Society of Automotive Engineers, (Bullens, 516) thermal expansivity and are very...show more

Product details

  • Paperback | 38 pages
  • 189 x 246 x 2mm | 86g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236979125
  • 9781236979124