US4110514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld metal deposit coated tool steel
Assignee: ESAB AB
•
Filing: 1977-07-11
•
Granted: 1978-08-29
•
Expires: 1997-07-11
Abstract
Abstract A weld metal deposit which is not subject to solidification cracks and which is highly wear-resistant, also to the hot wear to which hot forming tools are subjected is disclosed. The weld metal deposit consists essentially of an air-hardening alloy steel containing 0.55% to 2.0% carbon, 0.2% to 4.0% silicon, 0.2% to 3.0% manganese, 4.0% to 6.5% chromium, 2.5% to 15.0% columbium, 0% to 3.5% strong carbide formers other than columbium, 0% to 0.5% nickel, and the remainder iron with or without incidental impurities. The contents of carbon and columbium have to be in a ratio of one to another as defined by the area indicated in FIG. 1 of the accompanying drawings.
Inventors
- 👤 Frederick Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:05
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/308; B23K35/3093; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958; Y10T428/12965; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
95 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of 0.55% to 2.0% C, 0.2% to 4.0% Si, 0.2% to 3.0% Mn, 4.0% to 6.5% Cr, 2.5% to 15.0% Nb, 0% to 0.5% Ni, 0% to 3.5% strong carbide formers other than niobium selected from the group consisting of tungsten, molybdenum, vanadium, and titanium, the remainder being substantially iron, and the carbon and niobium content being in a ratio of one to the other as defined by the shaded area in FIG. 1 of the accompanying drawings.
Claim 2
Dependent Claim
95 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of 0.55% to 2.0% C, 0.2% to 4.0% Si, 0.2% to 3.0% Mn, 4.0% to 6.5% Cr, 2.5% to 15.0% Nb, 0% to 0.5% Ni, 0% to 3.5% strong carbide formers other than niobium selected from the group consisting of tungsten, molybdenum, vanadium, and titanium, the remainder being substantially iron, and the carbon and niobium content being in a ratio of one to the other as defined by the shaded area in FIG. 1 of the accompanying drawings.
Claim 3
Dependent Claim
15 words
A weld metal deposit as claimed in claim 1 containing 0.6% to 1.5% of molybdenum.
Claim 4
Dependent Claim
25 words
A weld metal deposit as claimed in claim 1 in which the silicon content amounts to from about 1 to 2 times the carbon content.
Claim 5
Dependent Claim
51 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 0.65 to 0.70
Si 0.5 to 1.0
Mn 0.75 to 1.25
Cr 4.0 to 6.0
Nb 3.2 to 4.0
Mo 1.0 to 1.25
______________________________________ the remainder being substantially iron.
Claim 6
Dependent Claim
51 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 0.65 to 0.70
Si 0.5 to 1.0
Mn 0.75 to 1.25
Cr 4.0 to 6.0
Nb 3.2 to 4.0
Mo 1.0 to 1.25
______________________________________ the remainder being substantially iron.
Claim 7
Dependent Claim
51 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.0 to 1.2
Si 2.0 to 2.5
Mn 2.0 to 2.5
Cr 4.0 to 6.0
Nb 8.0 to 9.0
Mo 0.9 to 1.1
______________________________________ the remainder being substantially iron.
Claim 8
Dependent Claim
51 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.0 to 1.2
Si 2.0 to 2.5
Mn 2.0 to 2.5
Cr 4.0 to 6.0
Nb 8.0 to 9.0
Mo 0.9 to 1.1
______________________________________ the remainder being substantially iron.
Claim 9
Dependent Claim
51 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.5 to 1.7
Si 2.75 to 3.25
Mn 2.0 to 2.5
Cr 4.0 to 5.0
Nb 11.5 to 12.5
Mo 0.7 to 1.0
______________________________________ the remainder being substantially iron.
Claim 10
Dependent Claim
51 words
A weld metal deposit applied as a coating on a hot working tool, said deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.5 to 1.7
Si 2.75 to 3.25
Mn 2.0 to 2.5
Cr 4.0 to 5.0
Nb 11.5 to 12.5
Mo 0.7 to 1.0
______________________________________ the remainder being substantially iron.
Claim 11
Dependent Claim
103 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of 0.55% to 2.0% C, 0.2% to 4.0% Si, 0.2% to 3.0% Mn, 4.0% to 6.5% Cr, 2.5% to 15.0% Nb, 0% to 0.5% Ni, 0% to 3.5% strong carbide formers other than niobium selected from the group consisting of tungsten, molybdenum, vanadium, and titanium, the remainder being substantially iron, and the carbon and niobium content being in a ratio of one to the other as defined by the shaded area in FIG. 1 of the accompanying drawings.
Claim 12
Dependent Claim
103 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of 0.55% to 2.0% C, 0.2% to 4.0% Si, 0.2% to 3.0% Mn, 4.0% to 6.5% Cr, 2.5% to 15.0% Nb, 0% to 0.5% Ni, 0% to 3.5% strong carbide formers other than niobium selected from the group consisting of tungsten, molybdenum, vanadium, and titanium, the remainder being substantially iron, and the carbon and niobium content being in a ratio of one to the other as defined by the shaded area in FIG. 1 of the accompanying drawings.
Claim 13
Dependent Claim
21 words
A hot working tool as claimed in claim 7 in which said weld metal deposit contains 0.6% to 1.5% of molybdenum.
Claim 14
Dependent Claim
30 words
A hot working tool as claimed in claim 7 in which the silicon content of said weld metal deposit amounts to from about 1 to 2 times the carbon content.
Claim 15
Dependent Claim
59 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 0.65 to 0.70
Si 0.5 to 1.0
Mn 0.75 to 1.25
Cr 4.0 to 6.0
Nb 3.2 to 4.0
Mo 1.0 to 1.25
______________________________________ the remainder being substantially iron.
Claim 16
Dependent Claim
59 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 0.65 to 0.70
Si 0.5 to 1.0
Mn 0.75 to 1.25
Cr 4.0 to 6.0
Nb 3.2 to 4.0
Mo 1.0 to 1.25
______________________________________ the remainder being substantially iron.
Claim 17
Dependent Claim
59 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.0 to 1.2
Si 2.0 to 2.5
Mn 2.0 to 2.5
Cr 4.0 to 6.0
Nb 8.0 to 9.0
Mo 0.9 to 1.1
______________________________________ the remainder being substantially iron.
Claim 18
Dependent Claim
59 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.0 to 1.2
Si 2.0 to 2.5
Mn 2.0 to 2.5
Cr 4.0 to 6.0
Nb 8.0 to 9.0
Mo 0.9 to 1.1
______________________________________ the remainder being substantially iron.
Claim 19
Dependent Claim
59 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.5 to 1.7
Si 2.75 to 3.25
Mn 2.0 to 2.5
Cr 4.0 to 5.0
Nb 11.5 to 12.5
Mo 0.7 to 1.0
______________________________________ the remainder being substantially iron.
Claim 20
Dependent Claim
59 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of: ______________________________________
Percent
______________________________________
C 1.5 to 1.7
Si 2.75 to 3.25
Mn 2.0 to 2.5
Cr 4.0 to 5.0
Nb 11.5 to 12.5
Mo 0.7 to 1.0
______________________________________ the remainder being substantially iron.
Claim 21
Dependent Claim
116 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of 0.55% to 2.0% C, 0.2% to 4.0% Si, 0.2% to 3.0% Mn, 4.0% to 6.5% Cr, 2.5% to 15.0% Nb, 0% to 0.5% Ni, 0% to 3.5% strong carbide formers other than niobium selected from the group consisting of tungsten, molybdenum, vanadium, and titanium, the remainder being substantially iron, and the carbon and niobium content being in a ratio of one to the other as defined by the shaded area in FIG. 1 of the accompanying drawings, said steel body having a composition outside the range of compositions above specified.
Claim 22
Dependent Claim
116 words
A hot working tool comprising a body of steel and a weld metal deposit forming a wear-resistant coating thereon, said weld metal deposit consisting essentially of 0.55% to 2.0% C, 0.2% to 4.0% Si, 0.2% to 3.0% Mn, 4.0% to 6.5% Cr, 2.5% to 15.0% Nb, 0% to 0.5% Ni, 0% to 3.5% strong carbide formers other than niobium selected from the group consisting of tungsten, molybdenum, vanadium, and titanium, the remainder being substantially iron, and the carbon and niobium content being in a ratio of one to the other as defined by the shaded area in FIG. 1 of the accompanying drawings, said steel body having a composition outside the range of compositions above specified.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |