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The alloy composition used in orthopedic implants is described in industry standard ASTM-F75: mainly cobalt, with 27 to 30% chromium, 5 to 7% molybdenum, and upper limits on other important elements such as less than 1% each of manganese and silicon, less than 0.75% iron, less than 0.5% nickel, and very small amounts of carbon, nitrogen ...
Stellite alloys include a range of cobalt-based alloys, with significant proportions of chromium (up to 33%) and tungsten (up to 18%). Some of the alloys also contain nickel or molybdenum . Most of them have fairly high carbon content when compared to carbon steels.
In the form of boric acid, price per boron contained. Min. 99% pure. 6: C: Carbon: 2.267: 200 (5.54 × 10 18 kg) 0.122: 0.28: 2018: EIA Coal [19] In the form of anthracite, price per carbon contained, assuming 90% carbon content. There is a wide variation of price of carbon depending on its form.
L-605 is composed primarily of cobalt (Co), with a specified mixture of chromium (Cr), tungsten (W), nickel (Ni), iron (Fe) and carbon (C), as well as small amounts of manganese (Mn), silicon (Si), and phosphorus (P). The tungsten and nickel improve the alloy's machinability, [3] while chromium contributes to its solid-solution strengthening. [2]
The company's alloys are primarily marketed under the Hastelloy and the Haynes brands. They are based on nickel, but also include cobalt, chromium, molybdenum, tungsten, iron, silicon, manganese, carbon, aluminum, and/or titanium. [2]
Stainless steel (chromium, nickel) AL-6XN; Alloy 20; Celestrium; Marine grade stainless; Martensitic stainless steel; Alloy 28 or Sanicro 28 (nickel, chromium) Surgical stainless steel (chromium, molybdenum, nickel) Zeron 100 (chromium, nickel, molybdenum) Tool steel (tungsten or manganese) Silver steel (US:Drill rod) (manganese, chromium, silicon)
These prices are more an indication than an actual exchange price. Unlike the prices on an exchange, pricing providers tend to give a weekly or bi-weekly price. For each commodity they quote a range (low and high price) which reflect the buying and selling about 9-fold due to China's transition from light to heavy industry and its focus on ...
A rise in the price of cobalt in the late 1970s led to the development of cobalt-free maraging steels. [3] The common, non-stainless grades contain 17–19 wt% nickel, 8–12 wt% cobalt, 3–5 wt% molybdenum and 0.2–1.6 wt% titanium. [4] Addition of chromium produces stainless grades resistant to corrosion.
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