Stainless steels nitrogen

Table 2.25 Breakdown potentials for 316S12 stainless steel (cold worked), high nitrogen stainless steel (cold worked), titanium-6Al-4V and cast-cobalt-chromium-molybdenum alloy in continuously aerated aqueous acidified chloride solution 0.23 m [C1 ] pH 1.5 at 25°C. ...

High nitrogen stainless steel BS7252/9 cold worked 850 300... 

International Organisation for Standardisation Implants for Surgery—Metallic Materials — Wrought High Nitrogen Stainless Steel, Specification Number ISO 5832 Part 9, Geneva (1992)... 

The nitrogen exchange between lithium and several transition metals gives rise to the formation of binary or ternary nitrides, which show analogies with the ternary oxides formed in Na—O—Me systems . In the lithium-nitrogen-stainless steel system, nitrogen is picked-up by the stainless steel due to the getter reaction of the... 

Sum] Sumin, V.V., Chimid, G., Rashev, Ts., Saryivanov, L., The Neutron-Spectroscopy Proof of the Strong Cr-N Interactions in Nitrogen Stainless Steels , Mater. Sci. Forum, 318—320, 31-40 (1999) (Crys. Stracture, Electronic Stracture, Experimental, 11)... 

Speidel, M. O., High Nitrogen Stainless Steels Austenitic, Duplex and Martensitic," Stainless Steels 87, The Institute of Metals, 1988. 

Speidel, M. O. (1992), High nitrogen stainless steels in chloride solutions. Mater. Performance, Vol. 31, No. 9 (1992), 61. 

Cryogenics We use several types of evacuated stainless steel cryostats of about 1 htre capacity to provide the 77 K cooling with hquid nitrogen. The simplest, best valued and easiest to handle one is a ordinary thermos flask available from the supermarket (see fig.3). It is sufficient for a measurement period of more than 12 hours. A specially designed stainless steel vessel gains cooling periods of 30 hours. 

In the spht- or dual-pressure process, low to medium pressure gases (ca 0.3—0.6 MPa) containing nitrogen oxides are compressed to ca 1.1—1.5 MPa for efficient absorption in water to make nitric acid. Stainless steel is used for constmction in this corrosive environment and, because of the potential for... 

Smaller quantities of liquid nitrogen are shipped in liquid cylinders, which are pressurized stainless steel vacuum-insulated containers with capacities of 160—180 L of hquid nitrogen, producing 100—120 (3800—4600 SCF) gaseous nitrogen when vaporized. Moderate quantities of high pressure gaseous... 

The polyesterification reaction is normally carried out in stainless steel vessels ranging from 8,000—20,000 L, heated and cooled through internal cods (Fig. 1). Blade agitators revolving at 70—200 rpm ate effective in stirring the low viscosity mobde reactants, which ate maintained under an inert atmosphere of nitrogen or carbon dioxide during the reaction at temperatures up to 240°C. 

Austenitic Stainless Steels. These steels, based on iron—chromium—nickel alloys, are not hardenable by heat treatment and are predominandy austenitic. They include Types 301, 302, 302B, 303, 304, 304L, 305, 308, 309, 310, 314, 316, 316L, 317, 321, and 347. The L refers to 0.03% carbon max, which is readily available. In some austenitic stainless steels, all or part of the nickel is replaced by manganese and nitrogen in proper amounts, as in one proprietary steel and Types 201 and 202 (see Table 4). 

After separation of the catalyst by filtration, raw succinic anhydride is purified by distillation under reduced pressure, ie, 4—13 kPa (30—98 mm Hg), and flaked. The material of constmction of the plant is stainless steel. Typical specific consumptions for the production of one metric ton of succinic anhydride are maleic anhydride at 1050 kg hydrogen, 300 m steam, 4500 kg cooling water, 100 m electricity, 350 kW nitrogen, 100 m and methane,... 

Sulfurization of unsaturated compounds and meicaptans is normally carried out at atmospheric pressure, in a mild or stainless steel, batch-reaction vessel equipped with an overhead condenser, nitrogen atmosphere, an agitator, heating media capable of 120—215°C temperatures and a scmbber (typically caustic bleach or diethanolamine) capable of handling hydrogen sulfide. If the reaction iavolves the use of H2S as a reactant or the olefin or mercaptan is a low boiling material, a stainless steel pressurized vessel is recommended. 

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