Search Results for 321

Fig. 3.20 Heavy oxide scales formed on the side of Type 321 recuperator tube that was exposed to the incoming air after 6 months of service with the metal temperatures approximately 620 to 670 °C (1150 to 1240 °F). This tube was from the same batch of tubes that shows surface chromium More

Fig. 3.22 Type 321 heat-exchanger tubes, which were manufactured by two different alloy suppliers, were tested in the same facility as described previously for preheating air at approximate metal temperature of 620 to 670 °C (1150 to 1240 °F) for about 1008 h. (a) Supplier A. (b) Supplier B More

Fig. 3.70 Oxidation behavior of Type 321 and 347 foils (100 μm thick) at 700 and 800 °C (1292 and 1472 °F) in dry air and air with 10% H 2 O. Specimens were cycled to room temperature every 100 h. Source: Ref 111 More

Fig. 11.19 Corrosion of Type 321 superheater tubes with and without Mg(OH) 2 injection in an oil-fired boiler. Source: Ref 8 More

Fig. 4.18 Effect of cold work (%) on the SCC susceptibility of type 321 in boiling magnesium chloride and calcium chloride solutions. After Ref 4.49 More

Fig. 8.80 Micrograph of AISI 321 stainless steel showing titanium carbonitride inclusions. No etching. Polygonal shape and golden color are typical of titanium nitrides and carbonitrides. Courtesy of Villares Metals, Sumaré, Brazil. More

Fig. 18 Type 321 stainless-steel (ASME SA-213, grade TP321H) superheater tube that failed by thick-lip stress rupture. (a) Overall view of rupture. (b) Macrograph of an unetched section from location at arrows showing extensive transverse cracking adjacent to the main fracture (at right More

Fig. 16.15 Fish mouth fracture from creep rupture of a type 321 stainless steel superheater tube More

Fig. 2.31 Cleavage fracture in Armco iron broken at −196 °C (−321 °F), showing river patterns, tongues, and (from bottom right to top left) a grain boundary. TEM p-c replica, 3000× More

Fig. 4.30 Temperature and concentration limits for caustic SCC of types 304, 347, 316, and 321. After Ref 4.113 More

Fig. 5.6. Temperature dependence of fire-side corrosion for 2¼Cr-1Mo ferritic steel and type 321 austenitic stainless steel ( Ref 6 ). More

Fig. 3.19 Surface depletion of chromium observed in a thin-gage commercial heat-exchanger tube in the as-fabricated condition made from Type 321. Source: Ref 30 More

Figure 11.5 Tensile and yield strengths of three austenitic stainless steels — AISI types 304, 321, and 347 — at temperatures between 4 and 300 K ( Handbook on Materials for Superconducting Machinery , 1977 ). More

Fig. 16-7 Distribution of tensile test properties for alloy cast steels heat treated to a Brinell hardness range of 270-321 [120 ksi (827 MPa) minimum tensile strength]. 260 heats More

Fig. 5.15 Plate martensite formed in an austenitic single crystal of an Fe-33.5Ni alloy by cooling to −196 °C (−321 °F). Plates are visible only because of surface relief generated by martensitic transformation, light micrograph, original magnification 200×. Source: Ref 5.42 More

Fig. A10.6 Tensile strengths (in ksi) of austenitic stainless steels (applicable to AISI 301, 302, 304, 304L, 321, and 347, annealed, strength at temperature exposure up to 0.5 h). S values are used for F ty and F tu . Source: Ref A10.6 More

Fig. 6.19 Theoretical strain/effective full power day relationship for stainless steel tubes together with the theoretical boundary between “failure” and “nonfailure.” Also shown are observations for commercial-purity types 321, 316, and 348 stainless steels. Source: Ref 6.26 , 6.27 , 6.81 More

Fig. 2.44 Fracture surface showing a localized zone of plane-strain fracture (left) from shear overload failure of annealed Armco iron sheet at −196 °C (−321 °F). The configuration indicates that the fracture propagated from left to right in this view. Light fractograph, 5× More

Fig. 5.29 Carburization resistance of several wrought and cast Fe-Cr-Ni alloys (Type 304, 321, HT, HU, and HK) after testing in dry ethane (C 2 H 6 ) for 24 h at temperatures from 880 to 1000 °C. Source: Ref 43 More