JPS57188654A - Material for tool joint - Google Patents

Material for tool joint

Info

Publication number
JPS57188654A
JPS57188654A JP7133281A JP7133281A JPS57188654A JP S57188654 A JPS57188654 A JP S57188654A JP 7133281 A JP7133281 A JP 7133281A JP 7133281 A JP7133281 A JP 7133281A JP S57188654 A JPS57188654 A JP S57188654A
Authority
JP
Japan
Prior art keywords
tool joint
steel
resistance
enhance
contg
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.)
Pending
Application number
JP7133281A
Other languages
Japanese (ja)
Inventor
Norioki Uehara
Yasuhiro Kimura
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP7133281A priority Critical patent/JPS57188654A/en
Publication of JPS57188654A publication Critical patent/JPS57188654A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a material for a tool joint with high strength and superior delayed fracture resistance in an acidic atmosphere by using a steel contg. C, Si, Mn, S, Cu, Ni, Cr, Mo and V or contg. further Nb or Ca.
CONSTITUTION: The composition of a steel used as a material for a tool joint consists of, by weight, 0.15W0.50% C, 0.15W1.5% Si, ≤1.0% Mn, ≤0.010% S, ≤0.30% Cu, ≤0.305% Ni, 1.3W5.0% Cr, 0.3W1.5% Mo, 0.05W1.0% V and the balance Fe with inevitable impurities or contains further 0.01W0.10% Nb and/or Sx(1.5W2)% Ca. Among said components C increases the strength, and Si and Mn perform deoxidation and desulfurization when the steel is in the molten state. Cr and Mo increase the temper softening resistance and enhance the corrosion resistance, and V and Nb enhance the mechanical properties. Since S, Cu, Ni and Ca deteriorate the delayed fracture resistance, the contents are regulated to said upper limits or below.
COPYRIGHT: (C)1982,JPO&Japio
JP7133281A 1981-05-14 1981-05-14 Material for tool joint Pending JPS57188654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7133281A JPS57188654A (en) 1981-05-14 1981-05-14 Material for tool joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7133281A JPS57188654A (en) 1981-05-14 1981-05-14 Material for tool joint

Publications (1)

Publication Number Publication Date
JPS57188654A true JPS57188654A (en) 1982-11-19

Family

ID=13457467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7133281A Pending JPS57188654A (en) 1981-05-14 1981-05-14 Material for tool joint

Country Status (1)

Country Link
JP (1) JPS57188654A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100422374C (en) * 2006-04-04 2008-10-01 无锡西姆莱斯石油专用管制造有限公司 Anti-sulfur drill rod and method for manufacturing the same
CN103820737A (en) * 2014-02-24 2014-05-28 无锡双马钻探工具有限公司 Trenchless drill rod steel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100422374C (en) * 2006-04-04 2008-10-01 无锡西姆莱斯石油专用管制造有限公司 Anti-sulfur drill rod and method for manufacturing the same
CN103820737A (en) * 2014-02-24 2014-05-28 无锡双马钻探工具有限公司 Trenchless drill rod steel
CN103820737B (en) * 2014-02-24 2016-04-27 无锡双马钻探工具有限公司 A kind of no-dig technique drilling rod steel

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