Study of heat resistance characteristics of metal of centrifugally cast pipes made from 45Kh32N43SB alloy and their welded joints at temperatures up to 1150°C. Part 1: The heat resistance characteristics of pipes at temperatures up to 1100°С

Author:

Oryshchenko A. S.1,Utkin Yu. A.1,Popova I. P.1,Petrov S. N.1,Tsemenko A. V.1

Affiliation:

1. NRC “Kurchatov Institute” – CRISM “Prometey”

Abstract

The paper studies heat resistance properties of 45Cr32Ni43SiNb alloy developed at the CRISM “Prometey” for reformer systems of high-temperature ethylene production plants. The macrocrystalline structure is analyzed and quantitative phase data for metal of centrifugally cast tubes is collected. It is shown that the alloy under investigation is characterized by structural stability, long-term durability, and high-temperature creep resistance up to 1000–1100°С.

Publisher

FSUE CRISM Prometey

Reference13 articles.

1. Yushchenko, K.A., Pinchuk, N.I., Nakonechny, A.A., etal., Issledovanie svarivaemosti zharostoykikh splavov 40KhN35B, 40KhN48V, 15KhN34B dlya tsentrobezhnolitykh trub i razrabotka kompozitsii shva [Study of weldability of heat-resistant alloys 40KhN35B, 40KhN48V, 15KhN34B for centrifugally cast pipes and development of a weld composition], Avtomaticheskaya svarka, 1985, No 7 (388), pp. 26–31.

2. Korolev, N.M., Potapov, I.I., Shishkalov, S.V., Zavarka defektov litya iz splava 50Kh25N35V5K15S [Welding of defects in casting from alloy 50Kh25N35V5K15S], Svarochnoe proizvodstvo, 1983, No 7, p. 39.

3. Zemzin, V. N., Zharoprochnost svarnykh soedineniy [Heat resistance of welded joints], Leningrad: Mashinostroenie, 1972.

4. Song, R., Zhang, M., Dong, J., Du, C., Investigation of Cr34Ni45 ethylene cracking furnace tube in service, Advanced Materials Research, 2013, V. 834–836, pp. 390–400.

5. Materials_Development. Core Technologies. Carburization-resistant/creep-resistant materials. Heat resistant alloy for cracking and reformer tubes KHR45A. URL: https://www.kubota.com/products/materials/technology/materials_development/ (reference date 06/07/2020)

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