US3627516A - Stainless iron-base alloy and its various applications - Google Patents
Stainless iron-base alloy and its various applications Download PDFInfo
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- US3627516A US3627516A US746285A US3627516DA US3627516A US 3627516 A US3627516 A US 3627516A US 746285 A US746285 A US 746285A US 3627516D A US3627516D A US 3627516DA US 3627516 A US3627516 A US 3627516A
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- niobium
- chromium
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- 229910045601 alloy Inorganic materials 0.000 title abstract description 34
- 239000000956 alloy Substances 0.000 title abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052758 niobium Inorganic materials 0.000 abstract description 13
- 239000010955 niobium Substances 0.000 abstract description 13
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 11
- 239000011651 chromium Substances 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052804 chromium Inorganic materials 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 241000237858 Gastropoda Species 0.000 abstract description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 5
- 229910052710 silicon Inorganic materials 0.000 abstract description 5
- 239000010703 silicon Substances 0.000 abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 238000005275 alloying Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910020015 Nb W Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- IMFJNXMOPRISHP-UHFFFAOYSA-N [Mo].[Nb].[W] Chemical compound [Mo].[Nb].[W] IMFJNXMOPRISHP-UHFFFAOYSA-N 0.000 description 1
- GAYPVYLCOOFYAP-UHFFFAOYSA-N [Nb].[W] Chemical compound [Nb].[W] GAYPVYLCOOFYAP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910000753 refractory alloy Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Definitions
- the present invention essentially relates to iron-base alloys of the type adapted for producing high-temperature operating slugs and exhibiting high mechanical strength, low creep, good resistance to corrosion and to thermal shocks in temperature ranges from about 800 C. to 1250 C., and principally capable of being very readilv welded by the various known industrial processes.
- allovs including nickel in a proportion of about 30 to and chromium in a proportion of about 23 to 27%.
- Such alloys have also a relatively low content of carbon, manganese, silicon, phosphorus and sulphur.
- the present invention aims at overcoming such drawbacks and diificulties by creating a new alloy meeting all of the hereinabove mentioned requirements, containing, besides iron, nickel, chromium, manganese, silicon and very little impurities, said alloy being remarkable especially in that it contains a relatively low quantity of niobium.
- the niobium content ranges substantially from 0.20% and 3.0% by weight.
- the niobium content is of about 0.3 to 2.0% by weight.
- the niobium content is of about 1.20% by weight.
- the components of the alloy conformable to the invention range within the following proportions:
- the alloy is free from tungsten and molybdenum. Indeed, it has been noted that, on the one hand, they were relatively expensive alloying elements and, on the other hand, they decreased rather than improved the qualities of the finished produce.
- EXAMPLE 1 Three tests were effected at a temperature of about 950 C. during 1000 hours and 10,000 hours to evaluate the action of the niobium on the properties of a hot base alloy including 33% of nickel and 25% of chromium. Carbon, manganese, silicon, iron and impurities were 3 present in the proportions corresponding to the hereabove indicated restricted composition.
- Table III clearly points out the peculiar characteristics of the alloy conformable to this invention. The best results are obtained with a limited addition of niobium alone and the addition of other alloying elements such as tungsten and molybdenum in the absence of niobium results in lower creep characteristics while still constituting a more expensive alloy. Likewise, tungsten-niobium and tungsten niobium molybdenum combinations do not present any technical or economical advantage.
- Admixtures of carbon were carried out in each sample, on every mm. deep slice through more than 1 mm.
- the richest layer was that located between 0.2 and 0.3 mm. from the surface.
- the layer located between 1 and 1.1 mm. indicated the intensity of the deep carburizing, the intermediate points being substantially proportional.
- Cementation time (in The invention also covers, by way of new industrial products, the produce obtained by means of the aforementioned alloy as well as its various applications.
- Iron-base alloy for making high-temperature working slugs, usuable at temperatures as high as l2001250 C., containing carbon, nickel, chromium and the minimum usual impurities, said alloy consisting essentially of: Carbonfrom about 0.10% to 0.60% by Weight Chromiurnfrom about 23% to 28% by weight Nickelfrorn about 30% to 36% by weight Niobiumfrom about 0.3% to 2% by weight Manganese-from about 0.8% to 2% by weight Siliconfrom about 0.8% to 2% by weight Nitrogen-from about 0.02% to 0.20% by weight References Cited the rest being iron and said usual impurities. UNITED STATES PATENTS 2.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
IRON-BASE ALLOY FOR MAKING HIGH-TEMPERATURE WORKING SLUGS, CONTAINING CARBON, NICKEL, CHROMIUM, MANGANESE, SILICON AND THE USUAL IMPURITIES AND HAVING A NIOBIUM CONTENT COMPRISED BETWEEN 0.3 AND 2.0% BY WEIGHT, SAID ALLOY HAVING PREFERABLY THE FOLLOWING COMPOSITION: CARBON-FROM ABOUT 0.05% TO 0.70% BY WEIGHT CHROMIUM-FROM ABOUT 20% TO 30% BY WEIGHT NICKEL-FROM ABOUT 30% TO 40% BY WEIGHT NIOBIUM-FROM ABOUT 0.20% TO 3% BY WEIGHT SILICON-FROM ABOUT 0.50% TO 2.50% BY WEIGHT MANGANESE-FROM ABOUT 0.50% TO 2.50% BY WEIGHT NITROGEN-FROM ABOUT 0.02% TO 0.20% BY WEIGHT PHOSPHORUS AND SULPHUR-LESS THAN 0.05% BY WEIGHT THE TEST BEING IRON.
Description
United Stt atent Patented Dec. 14, 1971 U.S. Cl. 75-128 G 2 Claims ABSTRACT OF THE DISCLOSURE Iron-base alloy for making high-temperature working slugs, containing carbon, nickel, chromium, manganese, silicon and the usual impurities and having a niobium content comprised between 0.3 and 2.0% by weight, said alloy having preferably the following composition:
Carbon-frorn about 0.05% to 0.70% by weight Chromiumfrom about to by weight Nickelfrom about 30% to 40% by weight Niobium-from about 0.20% to 3% by weight Siliconfrom about 0.50% to 2.50% by weight Manganesefrom about 0.50% to 2.50% by weight Nitrogenfrom about 0.02% to 0.20% by weight Phosphorus and sulphurless than 0.05% by weight the rest being iron.
The present invention essentially relates to iron-base alloys of the type adapted for producing high-temperature operating slugs and exhibiting high mechanical strength, low creep, good resistance to corrosion and to thermal shocks in temperature ranges from about 800 C. to 1250 C., and principally capable of being very readilv welded by the various known industrial processes.
It is already known to make alloys endowed with characteristics interesting for their mechanical strength and corrosion resistance, said allovs including nickel in a proportion of about 30 to and chromium in a proportion of about 23 to 27%. Such alloys have also a relatively low content of carbon, manganese, silicon, phosphorus and sulphur.
The mechanical characteristics of these alloys when hot may be improved by adding, in relatively important proportions, expensive alloying elements such as tungsten and molybdenum. However, it could be recorded that their addition generally decreased the weldability properties of the finished produce.
It is certain that, up to now, it was not possible to make an iron-base alloy capable of meeting all the hereinabove mentioned requirements, and in particular an alloy endowed with good mechanical strength, low creep rate, good resistance to corrosion, especially to the action of oxygen, as well as to the penetration of carbon into the alloy when it is in fuel surroundings, good resistance to thermal shocks and high temperature and reliable weldability properties.
The present invention aims at overcoming such drawbacks and diificulties by creating a new alloy meeting all of the hereinabove mentioned requirements, containing, besides iron, nickel, chromium, manganese, silicon and very little impurities, said alloy being remarkable especially in that it contains a relatively low quantity of niobium.
According to another feature of the invention, the niobium content ranges substantially from 0.20% and 3.0% by weight.
According to still another feature of the invention, in the case where the alloy is intended to work at temperatures about 1200 C. to 1250 C., the niobium content is of about 0.3 to 2.0% by weight.
According to still another feature of the invention and in an especially advantageous method of execution, the niobium content is of about 1.20% by weight.
Extremely interesting qualities of the new alloy could be stated from the weldability point of view and confirming the corrosion resistance.
In a general way, the components of the alloy conformable to the invention range within the following proportions:
Carbonfrom about 0.05% to 0.70% Chromiumfrom about 20% to 30% Nickelfrom about 30% to 40% Niobiumfrom about 0.20% to 3% Siliconfrom about 0.50% to 2.50% Manganesefrom about 0.50% to 2.50% Nitrogenfrom about 0.02% to 0.20% Phosphous and sulphur-less than 0.05
the rest being iron.
As may be stated, the alloy is free from tungsten and molybdenum. Indeed, it has been noted that, on the one hand, they were relatively expensive alloying elements and, on the other hand, they decreased rather than improved the qualities of the finished produce.
The hereinabove mentioned general composition permits to obtain very satisfactory characteristics at high temperatures ranging from 800 C. to 1200 C. However, it was stated that for more exacting conditions of use, for example between 1200 C. and 1250 C., in steady operation and for important lapses of time, the following more restricted composition values should be observed:
Carbon-from about 0.10% to 0.60% Chromium-from about 23% to 28% Nickelfrom about 30% to 36% Niobiurnfrom about 0.3 to 2% Manganesefrom about 0.8% to 2% Siliconfrom about 0.8% to 2% Nitrogen-from about 0.02% to 0.2%
The rest being iron with the usual minimum impurities. It is preferred to use an alloy having the following composition:
Carbonabout 0.40%
Chromiumabout 26% Nickel-about 32% Niobium-about 1.2%
Manganeseabout 1.1%
Siliconabout 1.2%
Nitrogen-about 0.08%
The rest being iron and residual impurities, the latter kept as low as possible in quantity.
It could be stated that, in some cases of use, a molybdenum content of about 0.5 to 1.5% improves some of the hereinabove mentioned properties of the new alloy. In contrast, in spite of the propitious action of the niobium, the proportions of the latter had to be limited. In what tungsten is concerned, its effects 'were not always profitable and indeed it could be either kept out or brought down to very low content values.
In the following examples, selected from some practical tests, the importance of the new alloy will be pointed out.
EXAMPLE 1 Three tests were effected at a temperature of about 950 C. during 1000 hours and 10,000 hours to evaluate the action of the niobium on the properties of a hot base alloy including 33% of nickel and 25% of chromium. Carbon, manganese, silicon, iron and impurities were 3 present in the proportions corresponding to the hereabove indicated restricted composition.
The tests were performed on an alloy free of niobium and then on a sample wherein 1.26% of niobium has been introduced. The results obtained are indicated in Table I.
TABLE 1 Composition, Creep resistance until breaking percent at 950 in hectobar Ni Cr Nb R 1,000 h. R 10,000 11.
EXAMPLE 2 Still under the same operating conditions and with not mentioned alloying elements in quantities comparable to those characterizing the invention, other comparative tests have been carried out on a series of alloys to point out the action of elements such as tungsten, molybdenum, niobium, alone or in combiation as precised in Table III.
TABLE III Breaking strength at Composition. percent 050 in hectobar Ni Cr Nb W Mo R 1,000 h. R 10,000 11.
It may be seen that Table III clearly points out the peculiar characteristics of the alloy conformable to this invention. The best results are obtained with a limited addition of niobium alone and the addition of other alloying elements such as tungsten and molybdenum in the absence of niobium results in lower creep characteristics while still constituting a more expensive alloy. Likewise, tungsten-niobium and tungsten niobium molybdenum combinations do not present any technical or economical advantage.
Other creep tests to breaking under tension at higher temperatures (from 1050 C. to 1200 C.) and for more extended periods of time have confirmed all points set in evidence by the 950 C. tests hereinabove indicated in Table III, and it was thus possible to be sure of the obvious superiority of the new alloy. Thus, for example, the comparative results according to the combinations indicated in Table III are reused in Table IV, wherein is indicated in hours the time of creeping to breaking for 2 hectobar loads at a temperature of about 1050 C. and for 0.7 hectobar loads at a temperature of about 1200 C.
TABLE IV Compositions, percent Breaking time in hours T.: l,050 C. T.:1,200 Q. Ni Cr Nb W M0 2 hectobar load 0.7 hectobar The resistance to oxidation has been compared with that of a refractory alloy currently used for the whole of its qualities, containing especially 25% of chromium and 20% of nickel, the other alloying elements being similar to those given in the hereinabove mentioned restricted composition.
Measures taken at 950 C. and 10-50 C. after oxidation tests are summarized in Table V, herebelow, in millimetres of thickness lost per year.
Resistance to carburization has been checked by comparing the alloy of the invention with the same well known 25% chromium-20% nickel alloy.
Samples of each alloy have been cemented for 16 days and 32 days in a solid and carefully renewed cement.
Admixtures of carbon were carried out in each sample, on every mm. deep slice through more than 1 mm.
It could be observed that the richest layer was that located between 0.2 and 0.3 mm. from the surface. The layer located between 1 and 1.1 mm. indicated the intensity of the deep carburizing, the intermediate points being substantially proportional.
The following table gives in percent the different carbon values, at the beginning (0 day) of the cementation, 16 days later and 32 days later. It is thus easy to understand the advantages in corrosion resistance oifered by this new alloy.
TABLE VI Maximum carbon content, 0.2 to 0.3 mm. deep layer Carbon content in deep layer. depth: 1 to 1.1 mm.
Cementation time (in The invention also covers, by way of new industrial products, the produce obtained by means of the aforementioned alloy as well as its various applications.
Of course, the invention is by no means limited to the method of execution and to the compositions indicated only by way of example. In particular, the invention covers all means constituting technical equivalents to the described means as well as their combinations, if the latter are carried out within the scope of the following claims.
What is claimed is:
1. Iron-base alloy for making high-temperature working slugs, usuable at temperatures as high as l2001250 C., containing carbon, nickel, chromium and the minimum usual impurities, said alloy consisting essentially of: Carbonfrom about 0.10% to 0.60% by Weight Chromiurnfrom about 23% to 28% by weight Nickelfrorn about 30% to 36% by weight Niobiumfrom about 0.3% to 2% by weight Manganese-from about 0.8% to 2% by weight Siliconfrom about 0.8% to 2% by weight Nitrogen-from about 0.02% to 0.20% by weight References Cited the rest being iron and said usual impurities. UNITED STATES PATENTS 2. Iron-base alloy for making high-temperature working slugs, usuable at temperatures as high as 1200-1250 C., 2121391 6/1938 Amefss 75 128 N containing carbon, nickel, chromium, and the minimum 5 3381739 5/1968 a 75*128 R usual impurities, said alloy consisting essentially of: 2174025 9/1939 Wlse 75*1285 carbon about 040% b weight 2,432,617 12/1947 Franks 75128 0 2,45l,547 10/1948 German 75-128 by Wmght 3 306 736 2/1967 R d 11 75 12s 5 Nickelabout 32% by weight i un e Niobiumabout 1.20% by weight Manganese-about 1.10% by weight Siliconabout 1.20% by weight U S CL X R Nitr0genabout 0.08% by weight 75128 -N 10 HYLAND BIZOT, Primary Examiner
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR115444A FR1538481A (en) | 1967-07-24 | 1967-07-24 | New iron-based alloy and its various applications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3627516A true US3627516A (en) | 1971-12-14 |
Family
ID=8635684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US746285A Expired - Lifetime US3627516A (en) | 1967-07-24 | 1968-07-22 | Stainless iron-base alloy and its various applications |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3627516A (en) |
| BE (1) | BE790057Q (en) |
| FR (1) | FR1538481A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026699A (en) * | 1976-02-02 | 1977-05-31 | Huntington Alloys, Inc. | Matrix-stiffened heat and corrosion resistant alloy |
| US4058416A (en) * | 1976-02-02 | 1977-11-15 | Huntington Alloys, Inc. | Matrix-stiffened heat and corrosion resistant wrought products |
| US4063934A (en) * | 1975-12-02 | 1977-12-20 | Acieries Du Manoir Pompey | Heat resisting nickel-chromium alloy having high resistance to oxidation, carburization and creep at high temperatures |
| FR2504555A1 (en) * | 1981-04-27 | 1982-10-29 | Kubota Ltd | HEAT RESISTANT ALLOY HAVING EXCELLENT AFTER AGING DEFORMATION PROPERTIES AND DUCTILITY AND PRODUCTS THEREOF |
| US4410362A (en) * | 1981-01-12 | 1983-10-18 | Kubota Ltd. | Heat resistant cast iron-nickel-chromium alloy |
| US4419129A (en) * | 1981-01-12 | 1983-12-06 | Kubota Ltd. | Heat resistant cast iron-nickel-chromium alloy |
| US4421558A (en) * | 1980-01-10 | 1983-12-20 | Kubota Ltd. | Iron-based heat-resistant cast alloy |
| US4448749A (en) * | 1981-10-12 | 1984-05-15 | Kubota Ltd. | Heat resistant cast iron-nickel-chromium alloy |
| US4853185A (en) * | 1988-02-10 | 1989-08-01 | Haynes International, Imc. | Nitrogen strengthened Fe-Ni-Cr alloy |
| US6644358B2 (en) | 2001-07-27 | 2003-11-11 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US20060157161A1 (en) * | 2005-01-19 | 2006-07-20 | Govindarajan Muralidharan | Cast, heat-resistant austenitic stainless steels having reduced alloying element content |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512050B1 (en) * | 1970-07-14 | 1976-01-22 | ||
| FR2123768A6 (en) * | 1971-01-29 | 1972-09-15 | Pompey Acieries |
-
0
- BE BE790057D patent/BE790057Q/en not_active IP Right Cessation
-
1967
- 1967-07-24 FR FR115444A patent/FR1538481A/en not_active Expired
-
1968
- 1968-07-22 US US746285A patent/US3627516A/en not_active Expired - Lifetime
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063934A (en) * | 1975-12-02 | 1977-12-20 | Acieries Du Manoir Pompey | Heat resisting nickel-chromium alloy having high resistance to oxidation, carburization and creep at high temperatures |
| US4026699A (en) * | 1976-02-02 | 1977-05-31 | Huntington Alloys, Inc. | Matrix-stiffened heat and corrosion resistant alloy |
| US4058416A (en) * | 1976-02-02 | 1977-11-15 | Huntington Alloys, Inc. | Matrix-stiffened heat and corrosion resistant wrought products |
| US4421558A (en) * | 1980-01-10 | 1983-12-20 | Kubota Ltd. | Iron-based heat-resistant cast alloy |
| US4410362A (en) * | 1981-01-12 | 1983-10-18 | Kubota Ltd. | Heat resistant cast iron-nickel-chromium alloy |
| US4419129A (en) * | 1981-01-12 | 1983-12-06 | Kubota Ltd. | Heat resistant cast iron-nickel-chromium alloy |
| FR2504555A1 (en) * | 1981-04-27 | 1982-10-29 | Kubota Ltd | HEAT RESISTANT ALLOY HAVING EXCELLENT AFTER AGING DEFORMATION PROPERTIES AND DUCTILITY AND PRODUCTS THEREOF |
| US4444589A (en) * | 1981-04-27 | 1984-04-24 | Kubota, Ltd. | Heat resistant alloy excellent in bending property and ductility after aging and its products |
| US4448749A (en) * | 1981-10-12 | 1984-05-15 | Kubota Ltd. | Heat resistant cast iron-nickel-chromium alloy |
| US4853185A (en) * | 1988-02-10 | 1989-08-01 | Haynes International, Imc. | Nitrogen strengthened Fe-Ni-Cr alloy |
| US6644358B2 (en) | 2001-07-27 | 2003-11-11 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US20060062646A1 (en) * | 2001-07-27 | 2006-03-23 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US20070178328A1 (en) * | 2001-07-27 | 2007-08-02 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US20090158807A1 (en) * | 2001-07-27 | 2009-06-25 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making |
| US20100215454A1 (en) * | 2001-07-27 | 2010-08-26 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US20100275753A1 (en) * | 2001-07-27 | 2010-11-04 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US8033767B2 (en) | 2001-07-27 | 2011-10-11 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US8070401B2 (en) | 2001-07-27 | 2011-12-06 | Manoir Industries, Inc. | Apparatus for making centrifugally-cast tube |
| US20060157161A1 (en) * | 2005-01-19 | 2006-07-20 | Govindarajan Muralidharan | Cast, heat-resistant austenitic stainless steels having reduced alloying element content |
| US7749432B2 (en) | 2005-01-19 | 2010-07-06 | Ut-Battelle, Llc | Cast, heat-resistant austenitic stainless steels having reduced alloying element content |
| US8003045B2 (en) | 2005-01-19 | 2011-08-23 | Ut-Battelle, Llc | Cast, heat-resistant austenitic stainless steels having reduced alloying element content |
Also Published As
| Publication number | Publication date |
|---|---|
| BE790057Q (en) | 1973-02-01 |
| FR1538481A (en) | 1968-09-06 |
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