BE641974A - - Google Patents

Info

Publication number
BE641974A
BE641974A BE641974DA BE641974A BE 641974 A BE641974 A BE 641974A BE 641974D A BE641974D A BE 641974DA BE 641974 A BE641974 A BE 641974A
Authority
BE
Belgium
Prior art keywords
emi
alloy
following composition
rest
iron
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE641974A publication Critical patent/BE641974A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering

Description

       

   <EMI ID=1.1> 

  
 <EMI ID=2.1>   <EMI ID=3.1> 

  
 <EMI ID=4.1> 

  
 <EMI ID=5.1> 

  
et ses bonnes propriétés physiques. 

  
 <EMI ID=6.1> 

  
 <EMI ID=7.1> 

  
 <EMI ID=8.1> 

  
benne dureté est caractérisé par un alliage de la composition  suivante ; 

  

 <EMI ID=9.1> 


  
le reste étant du fer avec les teneurs habituelles en impuretés

  
 <EMI ID=10.1> 

  
 <EMI ID=11.1> 

  
 <EMI ID=12.1> 

  
 <EMI ID=13.1> 

  
 <EMI ID=14.1> 

  
g ambiante et enfin, d'un revenu à une température comprise entre

  
 <EMI ID=15.1> 

  
 <EMI ID=16.1> 

  
En particulier, l'alliage peut avoir la compost-  tien suivante : 

  

 <EMI ID=17.1> 
 

  
Le Tableau I ci-après montre les résultats de  certains essais de corrosion comportant, entre autres, l'acier  suivant la présente invention. 

  
 <EMI ID=18.1> 

  
 <EMI ID=19.1> 

  

 <EMI ID=20.1> 


  
 <EMI ID=21.1> 

  
la composition suivante 

  
 <EMI ID=22.1> 

  
 <EMI ID=23.1> 

  
 <EMI ID=24.1> 

  
suivant 

  
 <EMI ID=25.1> 

  
 <EMI ID=26.1> 

  
refroidissement à l'air. 

  
 <EMI ID=27.1> 

  
(B - F) sont pratiquement identiques à l'acier du type A en ce

  
 <EMI ID=28.1> 

  
 <EMI ID=29.1> 

  
en molybdène comme indiqué au tableau I, Pour l'essai réel -de 

  
 <EMI ID=30.1> 

  
 <EMI ID=31.1> 

  
 <EMI ID=32.1> 

  
 <EMI ID=33.1> 

  
 <EMI ID=34.1> 

  
 <EMI ID=35.1>  

  
 <EMI ID=36.1> 
 <EMI ID=37.1> 
 le reste étant du fer avec les teneurs habituelles en impuretés  et substances étrangères, le rapport entre les teneurs en --*qui- 

  
 <EMI ID=38.1> 

  
 <EMI ID=39.1> 

  
étant compris entre 0,3 et 0,9, tandis que l'alliage est traité 

  
 <EMI ID=40.1> 

  
ce chauffage étant suivi d'un refroidissement à la température  ambiante et enfin, d'un revenu à une température comprise entre

  
 <EMI ID=41.1> 

  
ainsi formée à raison d'une teneur comprise entre 15 et 40 %.

  
2.- Procédé de fabrication d'un acier soudable et trempable ivant une haute résistance à la corrosion, combinée avec une bonne solidité et une bonne dureté suivant la revendication 1, caractérisé en ce que l'alliage a la composition suivante : 

  

 <EMI ID=42.1> 


  
le reste étant du fer avec les teneurs habituelles en impureté* et substances étrangères.

  
3.- Procédé de fabrication d'un acier soudable et trempable ayant une haute résistance à la corrosion, combinée avec une bonne solidité et une bonne dureté suivant la revendication 1, caractérisé en ce que l'alliage a la composition suivante : 

  

 <EMI ID=43.1> 




   <EMI ID = 1.1>

  
 <EMI ID = 2.1> <EMI ID = 3.1>

  
 <EMI ID = 4.1>

  
 <EMI ID = 5.1>

  
and its good physical properties.

  
 <EMI ID = 6.1>

  
 <EMI ID = 7.1>

  
 <EMI ID = 8.1>

  
bucket hardness is characterized by an alloy of the following composition;

  

 <EMI ID = 9.1>


  
the rest being iron with the usual content of impurities

  
 <EMI ID = 10.1>

  
 <EMI ID = 11.1>

  
 <EMI ID = 12.1>

  
 <EMI ID = 13.1>

  
 <EMI ID = 14.1>

  
g ambient and finally, tempering at a temperature between

  
 <EMI ID = 15.1>

  
 <EMI ID = 16.1>

  
In particular, the alloy can have the following compost:

  

 <EMI ID = 17.1>
 

  
Table I below shows the results of certain corrosion tests comprising, inter alia, the steel according to the present invention.

  
 <EMI ID = 18.1>

  
 <EMI ID = 19.1>

  

 <EMI ID = 20.1>


  
 <EMI ID = 21.1>

  
the following composition

  
 <EMI ID = 22.1>

  
 <EMI ID = 23.1>

  
 <EMI ID = 24.1>

  
next

  
 <EMI ID = 25.1>

  
 <EMI ID = 26.1>

  
air cooling.

  
 <EMI ID = 27.1>

  
(B - F) are practically identical to type A steel in

  
 <EMI ID = 28.1>

  
 <EMI ID = 29.1>

  
molybdenum as indicated in Table I, For the actual test -of

  
 <EMI ID = 30.1>

  
 <EMI ID = 31.1>

  
 <EMI ID = 32.1>

  
 <EMI ID = 33.1>

  
 <EMI ID = 34.1>

  
 <EMI ID = 35.1>

  
 <EMI ID = 36.1>
 <EMI ID = 37.1>
 the rest being iron with the usual contents of impurities and foreign substances, the ratio between the contents of - * qui-

  
 <EMI ID = 38.1>

  
 <EMI ID = 39.1>

  
being between 0.3 and 0.9, while the alloy is processed

  
 <EMI ID = 40.1>

  
this heating being followed by cooling to ambient temperature and finally, by tempering at a temperature between

  
 <EMI ID = 41.1>

  
thus formed in an amount of between 15 and 40%.

  
2.- A method of manufacturing a weldable and hardenable steel having a high resistance to corrosion, combined with good strength and good hardness according to claim 1, characterized in that the alloy has the following composition:

  

 <EMI ID = 42.1>


  
the rest being iron with the usual contents of impurity * and foreign substances.

  
3.- A method of manufacturing a weldable and hardenable steel having high resistance to corrosion, combined with good strength and good hardness according to claim 1, characterized in that the alloy has the following composition:

  

 <EMI ID = 43.1>

Claims (1)

<EMI ID=44.1> <EMI ID = 44.1> <EMI ID=45.1> <EMI ID = 45.1> <EMI ID=46.1> <EMI ID = 46.1> <EMI ID=47.1> <EMI ID = 47.1> <EMI ID=48.1> <EMI ID = 48.1> <EMI ID=49.1> <EMI ID = 49.1> <EMI ID=50.1> <EMI ID = 50.1> donné' des résultats analogues, given 'similar results, <EMI ID=51.1> <EMI ID = 51.1> trempable ayant une haute résistance la corrosion, combiner hardenable with high corrosion resistance, combine <EMI ID=52.1> <EMI ID = 52.1> <EMI ID=53.1> <EMI ID = 53.1> <EMI ID=54.1> <EMI ID=55.1> <EMI ID = 54.1> <EMI ID = 55.1>
BE641974D 1964-01-03 BE641974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR959271A FR1389542A (en) 1964-01-03 1964-01-03 Manufacturing process for weldable and hardenable steel and steel prepared according to this process

Publications (1)

Publication Number Publication Date
BE641974A true BE641974A (en)

Family

ID=8820211

Family Applications (1)

Application Number Title Priority Date Filing Date
BE641974D BE641974A (en) 1964-01-03

Country Status (2)

Country Link
BE (1) BE641974A (en)
FR (1) FR1389542A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297873B (en) * 1965-06-25 1969-06-19 Int Nickel Ltd Use of a red-free predominantly martensitic steel alloy for cutting tools
JPS5010216A (en) * 1973-06-01 1975-02-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297873B (en) * 1965-06-25 1969-06-19 Int Nickel Ltd Use of a red-free predominantly martensitic steel alloy for cutting tools
JPS5010216A (en) * 1973-06-01 1975-02-01

Also Published As

Publication number Publication date
FR1389542A (en) 1965-02-19

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