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Machine translation
1. (WO1979000328) UNMAGNETIZABLE CAST STEEL ALLOY,USE AND MAKING THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000328    International Application No.:    PCT/CH1978/000040
Publication Date: 14.06.1979 International Filing Date: 24.11.1978
IPC:
C22C 38/58 (2006.01)
Applicants:
Inventors:
Priority Data:
14647/77 30.11.1977 CH
Title (EN) UNMAGNETIZABLE CAST STEEL ALLOY,USE AND MAKING THEREOF
(FR) ALLIAGE ACIER-COULE NON MAGNETISABLE, UTILISATION ET PROCEDE DE FABRICATION
Abstract: front page image
(EN)An unmagnetizable cast steel alloy having the composition C max. 0.30%, Si max. 2.00%, Mn 4.00-20.00%, Cr 10.00-20.00%, Ni 4.00-12.00%, Mo max. 3.00%, N2 O.02-0.20% the remainder being iron, with a magnetic permeability (Alpha) <= 1.20 and a Cr NiMn equivalence factor f = 6.5% Cr -0.4.% Ni + 0.1% Mn + 0.075.% Cr .% Ni + 0.013.% Cr .% Mn 0.02.% Ni.% Mn wherein -6 <= f <= + 2 fulfills in an optimum way the whole of the following properties: low permeability; homogeneous resistance and hardness; stable flexibility at low temperatures; homogeneous magnetic permeability in big solidified sections; high capability to form chips and good weldability without microfissure and a sufficient limit to elongation. Other points of the invention relate to the use of these alloys in presence of intense magnetic fields and also to a process according to which after welding the alloy is heat-treated
(FR)Un alliage acier-coule non magnetisable ayant la composition C max. 0,30%, Si max. 2,00%, Mn 4,00 - 20,00%, Cr 10,00 - 20,00%, Ni 4,00 - 12,00%, Mo max. 3,00%, N2 0,02 - 0,20%, le reste etant du fer, avec une permeabilite magnetique (Alpha) <= 1,20 et un facteur d"equivalence CrNiMn f = 6,5 -% Cr - 0,4.% Ni + 0,1.% Mn + 0,075.% Cr .% Ni + 0.013.% Cr.% Mn - 0,02.% Ni.% Mn ou - 6 <= f <= + 2 remplit de maniere optimale l"ensemble des proprietes suivantes: basse permeabilite; resistance et durete homogenes, flexibilite stable a basse temperature; permeabilite magnetique homogene dans les grandes sections solidifiees; bonne aptitude a former des copeaux et bonne soudabilite sans microfissure et une limite a l"allongement suffisante. D"autres objets de l"invention portent sur l"utilisation de ces alliages en presence de champs magnetiques intenses et sur un procede selon lequel, apres soudure, l"alliage est traite thermiquement.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)