Title:
MEMBER FOR PROTECTING BOILER HEAT TRANSFER PIPE FROM CORROSION AND WEAR
Document Type and Number:
Japanese Patent JP2019082283
Kind Code:
A
Abstract:
To provide a member for protecting a boiler heat transfer pipe from corrosion and wear, that resists the deposition of fly ash for a long time, and can remove it even if it is deposited thereon.SOLUTION: One embodiment of a member for protecting a boiler heat transfer pipe from corrosion and wear is a member obtained by applying a chromium diffusion treatment to a stainless steel base material containing Cr: 16.00%-20.00%, Ni: 8.00%-16.00%, with the balance being substantially Fe and inevitable impurities. The stainless steel base material can be one of SUS304, SUS304L, SUS304TB, SUS304LTB, SUS304HTB, SUS316, SUS316L, SUS316TB, SUS316LTB, SUS316HTB, SUS317, SUS317L, SUS317TB, SUS317LTB, SUS321, SUS321TB, SUS321HTB, SUS347, SUS347TB, SUS347HTB. Another embodiment of the member is a member subjected to the chromium diffusion treatment, and then to carburizing treatment or nitriding treatment.SELECTED DRAWING: Figure 2
Inventors:
KITAGAWA HISAO
UCHIYAMA TAKESHI
NAKAYAMA TAKESHI
HIRAYAMA ATSUSHI
KAWASAKI SHOTA
UCHIYAMA TAKESHI
NAKAYAMA TAKESHI
HIRAYAMA ATSUSHI
KAWASAKI SHOTA
Application Number:
JP2017209830A
Publication Date:
May 30, 2019
Filing Date:
October 30, 2017
Export Citation:
Assignee:
JFE ENG CORP
International Classes:
F22B37/10; C23C12/00
Attorney, Agent or Firm:
Satoshi Takaya
Keisuke Matsuyama
Takashi Fujita
Shuzo Sudo
Keisuke Matsuyama
Takashi Fujita
Shuzo Sudo