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Title:
1CR17 FERRITIC STAINLESS STEEL PIPE PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/047624
Kind Code:
A1
Abstract:
Provided is a preparation method of a 1Cr17 ferritic stainless steel pipe. The method comprises the following steps: preheating a 1Cr17 ferritic stainless steel pipe billet and keeping at the temperature; perforation to obtain a hot-rolled perforated tube, wherein the chemical element and mass % ratio of the steel pipe is as follows: 0.08-0.12% of carbon, ≤0.04% of silicon, ≤0.70% of manganese, 16.40-17.00% of chrome, ≤0.035% of phosphorus, ≤0.010% of sulfur and the balance iron; performing thermal refining on the obtained hot-rolled perforated pipe to obtain a perforated pipe; performing normal-temperature cold rolling on the obtained perforated pipe to obtain a cold rolled pipe; and performing thermal treatment on the cold rolled pipe, cooling the same to normal temperature after thermal treatment is finished, and a finished product is obtained.

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Inventors:
WU ZHENHUAN (CN)
JIN RENMING (CN)
QIAN XIANGBAO (CN)
LU YALIN (CN)
LIU KAI (CN)
TAO YUWEN (CN)
BEI LEI (CN)
Application Number:
PCT/CN2018/096741
Publication Date:
March 14, 2019
Filing Date:
July 24, 2018
Export Citation:
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Assignee:
SUZHOU GOLDEN WAY STEEL TUBE CO LTD (CN)
International Classes:
B21C37/06; B21B19/04; C22C38/18; C22C38/02; C22C38/04; C22C38/28
Foreign References:
CN107552567A2018-01-09
CN104874606A2015-09-02
JPH07136702A1995-05-30
JPH08229606A1996-09-10
Other References:
LIU YU ET AL.: "Trial production of seamless steel tubes for 10Cr17 Ferritic Heat Exchangers", SHANXI METALLURGY, vol. 2017, no. 4, 31 August 2017 (2017-08-31), pages 15 - 17, ISSN: 1672-1152
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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