New generation 21/4CR steels T/P 23 and T/P 24 weldability and high temperature properties

被引：0

作者：

Dhooge A. ^{[1
]}

Vekeman J. ^{[2
]}

机构：

[1] Belgian Welding Institute, University Ghent

来源：

Welding in the World | 2005年 / 49卷 / 9-10期

关键词：

Boilers; Coarse grained heat affected zone; Creep resisting materials; Creep strength; Hardness; Heat affected zone; Heat treatment; Mechanical properties; Post weld heat treatment; Simulating; Strength; Toughness; Tubes and pipes; Weld zone; Weldability;

D O I：

10.1007/BF03266492

中图分类号：

学科分类号：

摘要：

Creep resistant steels for high temperature service are a vital part in the construction of power stations. The possibilities to increase steam parameters of new boilers are restricted if pressure and temperature in the membrane water-walls cannot be simultaneously increased. The increase of steam parameters requires the development of new high strength and creep resistant materials. This paper gives data on weldability, mechanical properties, toughness and high temperature behaviour (creep) of new materials T/P 24 (7CrMoVTiB10-10) which have been developed by Vallourec & Mannesmann Tubes, and T/P 23 (7CrWVMoNb9-6). It is the outcome of a research project of the Belgian Welding Institute in collaboration with Laborelec and with industrial partners. Both base metals and weldments in tubes and thick walled pipes have been investigated.

引用

页码：75 / 93

页数：18

共 4 条

[1]

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[2]

Gabrel J., Development of T and P23 steel grade, Vallourec and Mannesmann Tubes, Cost 522 - Steam Power Plant - Progress Report No. 04, 4, (2003)

[3]

Nawrocki J.G., Stress relief cracking of a ferritic alloy steel, IIW Document IX-2001-01

[4]

Heuser H., Jochum C., Characterization of Matching Filler Metals for New Ferritic-bainitic Steels Like T/P 23 and T/P 24

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