JPS5719321A - Improvement for sulfide stress corrosion cracking of low alloy steel - Google Patents

Improvement for sulfide stress corrosion cracking of low alloy steel

Info

Publication number
JPS5719321A
JPS5719321A JP9304480A JP9304480A JPS5719321A JP S5719321 A JPS5719321 A JP S5719321A JP 9304480 A JP9304480 A JP 9304480A JP 9304480 A JP9304480 A JP 9304480A JP S5719321 A JPS5719321 A JP S5719321A
Authority
JP
Japan
Prior art keywords
alloy steel
low alloy
stress corrosion
corrosion cracking
sulfide stress
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9304480A
Other languages
Japanese (ja)
Other versions
JPH0127126B2 (en
Inventor
Yasushi Inoue
Hirobumi Morikawa
Tomoyoshi Murata
Hirokichi Higashiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP9304480A priority Critical patent/JPS5719321A/en
Priority to CA000381289A priority patent/CA1188963A/en
Publication of JPS5719321A publication Critical patent/JPS5719321A/en
Publication of JPH0127126B2 publication Critical patent/JPH0127126B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE: To impart superior sulfide stress corrosion cracking characteristics to a low alloy steel by hardening the low alloy steel from an austenite temp. region to turn the greater part thereof to martensite structure then tempering the same for a shor time at a prescribed temp. region below an Ac1 transformation point.
CONSTITUTION: A low alloy steel contg. 0.05W0.35% C, 0.01W0.30% Si, 0.15W 1.5% Mn, and 0.005W0.10% Al is prepd. Next, this low alloy steel is hardened from an austenite temp. to turn ≥90% to martensite structure. Thence, said low alloy steel turned mostly to martensite structure is tempered in a short time in respective temp. regions of ≥700°C and below the Ac1 point in the case of ≤30sec holding time and ≥680°C and below the Ac1 point in the case of ≥30sec. As a result, the steel which has 60W80kgf/mm2 yield point and is superior in sulfide stress corrosion cracking resistance characteristics is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP9304480A 1980-07-08 1980-07-08 Improvement for sulfide stress corrosion cracking of low alloy steel Granted JPS5719321A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9304480A JPS5719321A (en) 1980-07-08 1980-07-08 Improvement for sulfide stress corrosion cracking of low alloy steel
CA000381289A CA1188963A (en) 1980-07-08 1981-07-07 Method for producing steels having improved resistance to sulfide stress corrosion cracking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9304480A JPS5719321A (en) 1980-07-08 1980-07-08 Improvement for sulfide stress corrosion cracking of low alloy steel

Publications (2)

Publication Number Publication Date
JPS5719321A true JPS5719321A (en) 1982-02-01
JPH0127126B2 JPH0127126B2 (en) 1989-05-26

Family

ID=14071499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9304480A Granted JPS5719321A (en) 1980-07-08 1980-07-08 Improvement for sulfide stress corrosion cracking of low alloy steel

Country Status (2)

Country Link
JP (1) JPS5719321A (en)
CA (1) CA1188963A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056055A1 (en) * 2007-10-26 2009-05-07 Baoshan Iron & Steel Co., Ltd. Steel plate with yield strength of 800mpa grade and low weld cracking sensitivity, and manufacture method thereof
CN102814630A (en) * 2012-09-19 2012-12-12 南通超达机械科技有限公司 Method for improving mold hardness of EPP foaming mold
CN105603315A (en) * 2016-03-24 2016-05-25 攀钢集团攀枝花钢铁研究院有限公司 Hot-rolling production method of V, Ti, Cr, Ni and Cu microalloy high-strength steel
CN105624552A (en) * 2016-03-24 2016-06-01 攀钢集团攀枝花钢铁研究院有限公司 V, Ti, Cr, Ni and Cu microalloyed high-strength steel and smelting method thereof
CN113403530A (en) * 2021-05-22 2021-09-17 江苏铸鸿重工股份有限公司 High-strength corrosion-resistant alloy steel forged circle and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056055A1 (en) * 2007-10-26 2009-05-07 Baoshan Iron & Steel Co., Ltd. Steel plate with yield strength of 800mpa grade and low weld cracking sensitivity, and manufacture method thereof
US8702876B2 (en) 2007-10-26 2014-04-22 Boashan Iron & Steel Co., Ltd. Steel plate having a low welding crack susceptibility and a yield strength of 800MPa and manufacture method thereof
CN102814630A (en) * 2012-09-19 2012-12-12 南通超达机械科技有限公司 Method for improving mold hardness of EPP foaming mold
CN105603315A (en) * 2016-03-24 2016-05-25 攀钢集团攀枝花钢铁研究院有限公司 Hot-rolling production method of V, Ti, Cr, Ni and Cu microalloy high-strength steel
CN105624552A (en) * 2016-03-24 2016-06-01 攀钢集团攀枝花钢铁研究院有限公司 V, Ti, Cr, Ni and Cu microalloyed high-strength steel and smelting method thereof
CN113403530A (en) * 2021-05-22 2021-09-17 江苏铸鸿重工股份有限公司 High-strength corrosion-resistant alloy steel forged circle and preparation method thereof

Also Published As

Publication number Publication date
CA1188963A (en) 1985-06-18
JPH0127126B2 (en) 1989-05-26

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