US2803538A - Self-hardening alloys - Google Patents
Self-hardening alloys Download PDFInfo
- Publication number
- US2803538A US2803538A US466934A US46693454A US2803538A US 2803538 A US2803538 A US 2803538A US 466934 A US466934 A US 466934A US 46693454 A US46693454 A US 46693454A US 2803538 A US2803538 A US 2803538A
- Authority
- US
- United States
- Prior art keywords
- manganese
- silicon
- self
- alloy
- hardening alloys
- 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.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 11
- 239000000956 alloy Substances 0.000 title claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 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 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 239000000470 constituent Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
Definitions
- the higher the manganese the higher should be the silicon.
- the manganese should be 4-7%, and when the silicon is 24%, the manganese should be 5-8%.
- this proportional relationship is adhered to, i. e., increasing the manganese as the silicon is increased, the alloy becomes non-magnetic.
- the alloys in the as Welded condition, have a Rockwell C hardness of 30-45, and the hardness increases to over 50, on peening.
- a self-hardening alloy consisting of from about 1% to about 4.25% carbon, from about 1% to about 4% silicon, from about 4% to about 8% manganese, and from about 10% to about 30% chromium, the remainder being substantially iron, and the silicon and manganese being maintained at all times in such proportional relationship that the alloy is non-magnetic, said alloy having a Rock- Well C hardness, in the as-welded condition, of 30 to 45.
- a self-hardening alloy as defined in claim 1, in which, when the silicon content is in the range of 1 to 3%, the manganese content is from 4 to 7%, and when the silicon content is in the range of 2 to 4%, the manganese content is from 5 to 8%.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Contacts (AREA)
- Earth Drilling (AREA)
Description
SELF-HARDENlNG ALLQYS Enrico M. Zampieri, Union City, N. J., and Arthur '1. Cape, Los Angeles, Calif., assignors to Coast Metals, Inc., Little Ferry, N. 1., a corporation of New Jersey No Drawing. Application November 4, 1954, Serial No. 466,934
2 Claims. (Cl. 75-426) Range Preferred Alloy Carbon 1-4. 25 2. 5 Silicon 1-4 2. 0 Manganese 4-8 6 Chromium 1030 Iron Balance Balance Patented Aug. 20,
In connection with the foregoing range, it is desirable that the higher the manganese, the higher should be the silicon. For example, when the silicon is 1-3%, the manganese should be 4-7%, and when the silicon is 24%, the manganese should be 5-8%. When this proportional relationship is adhered to, i. e., increasing the manganese as the silicon is increased, the alloy becomes non-magnetic.
The alloys, in the as Welded condition, have a Rockwell C hardness of 30-45, and the hardness increases to over 50, on peening.
It is to be understood that the expression the remainder being substantially iron, as used in the claims, is to be construed as including any other ingredients or impurities in relatively small or trace amounts, which are found associated With the various constituents of the alloy.
Having thus described our invention, We claim:
1. A self-hardening alloy consisting of from about 1% to about 4.25% carbon, from about 1% to about 4% silicon, from about 4% to about 8% manganese, and from about 10% to about 30% chromium, the remainder being substantially iron, and the silicon and manganese being maintained at all times in such proportional relationship that the alloy is non-magnetic, said alloy having a Rock- Well C hardness, in the as-welded condition, of 30 to 45.
2. A self-hardening alloy, as defined in claim 1, in which, when the silicon content is in the range of 1 to 3%, the manganese content is from 4 to 7%, and when the silicon content is in the range of 2 to 4%, the manganese content is from 5 to 8%.
References Cited in the file of this patent UNITED STATES PATENTS 1,671,384 Stoody May 29, 1928
Claims (1)
1. A SELF-HARDENING ALLOY CONSISTING OF FROM ABOUT 1% TO ABOUT 4.25% CARBON, FROM ABOUT 1% TO ABOUT 4% SILICON, FROM ABOUT 4% TO ABOUT 8% MANGANESE, AND FROM ABOUT 10% TO ABOUT 30% CHROMIUM, THE REMAINDER BEING SUBSTANTIALLY IRON, AND THE SILICON AND MANGANESE BEING MAINTAINED AT ALL TIMES IN SUCH PROPORTIONAL RELATIONSHIP THAT THE ALLOY IS NON-MAGNETIC, SAID ALLOY HAVING A ROCKWELL C HARDNESS, IN THE AS-WELDED CONDITION, OF 30 TO 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US466934A US2803538A (en) | 1954-11-04 | 1954-11-04 | Self-hardening alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US466934A US2803538A (en) | 1954-11-04 | 1954-11-04 | Self-hardening alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2803538A true US2803538A (en) | 1957-08-20 |
Family
ID=23853640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US466934A Expired - Lifetime US2803538A (en) | 1954-11-04 | 1954-11-04 | Self-hardening alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2803538A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3663214A (en) * | 1970-02-16 | 1972-05-16 | William H Moore | Abrasion resistant cast iron |
| US4586957A (en) * | 1983-03-01 | 1986-05-06 | Tsuyoshi Masumoto | Iron-base alloy materials having excellent workability |
| DE102009010473A1 (en) * | 2009-02-26 | 2010-11-18 | Federal-Mogul Burscheid Gmbh | Steel material composition for the production of piston rings and cylinder liners |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1671384A (en) * | 1925-11-12 | 1928-05-29 | Winston F Stoody | Alloy |
-
1954
- 1954-11-04 US US466934A patent/US2803538A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1671384A (en) * | 1925-11-12 | 1928-05-29 | Winston F Stoody | Alloy |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3663214A (en) * | 1970-02-16 | 1972-05-16 | William H Moore | Abrasion resistant cast iron |
| US4586957A (en) * | 1983-03-01 | 1986-05-06 | Tsuyoshi Masumoto | Iron-base alloy materials having excellent workability |
| DE102009010473A1 (en) * | 2009-02-26 | 2010-11-18 | Federal-Mogul Burscheid Gmbh | Steel material composition for the production of piston rings and cylinder liners |
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