Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
112 words
Iron-containing alloys which have an elastic limit higher than 600 Newtons per mm 2 after quenching and ageing and are resistant to corrosion by seawater, for at least 30 months, said alloys consisting essentially of, by weight, less than 0.15% of carbon, less than 2% of manganese, less than 1.5% of silicon, less than 0.03% of sulphur and phosphorus, from 34 to 40% of nickel, from 16 to 21% of chromium, from 6 to 18% of cobalt, from 2 to 3.5% of molybdenum, less than 0.25% of aluminum, from 2.5 to 3.5% of titanium, less than 2% of tungsten, and less than 0.015% of boron, the balance being iron and unavoidable impurities.
Claim 2
Dependent Claim
112 words
Iron-containing alloys which have an elastic limit higher than 600 Newtons per mm 2 after quenching and ageing and are resistant to corrosion by seawater, for at least 30 months, said alloys consisting essentially of, by weight, less than 0.15% of carbon, less than 2% of manganese, less than 1.5% of silicon, less than 0.03% of sulphur and phosphorus, from 34 to 40% of nickel, from 16 to 21% of chromium, from 6 to 18% of cobalt, from 2 to 3.5% of molybdenum, less than 0.25% of aluminum, from 2.5 to 3.5% of titanium, less than 2% of tungsten, and less than 0.015% of boron, the balance being iron and unavoidable impurities.
Claim 3
Dependent Claim
90 words
Iron-containing alloys as set forth in claim 1, which consist essentially of, by weight, less than 0.08% of carbon, less than 1% of manganese, less than 1.5% of silicon, less than 0.03% of sulphur and phosphorus, from 34 to 40% of nickel, from 16 to 21% of chromium, from 6 to 11% of cobalt, from 2 to 3.5% of molybdenum, less than 0.25% of aluminum, from 2.5 to 3.5% of titanium, from 0.5 to 2% of tungsten, and less than 0.015% of boron, the balance being iron and unavoidable impurities.
Claim 4
Dependent Claim
21 words
A fabricated article for use in seawater, said article being formed of an iron-containing alloy as set forth in claim 1.
Claim 5
Dependent Claim
21 words
Iron-containing alloys as set forth in claim 1 consisting essentially of 0.048-0.075 carbon 0.10-0.62 manganese 0.20-0.32 silicon 0.004-0.006 sulphur 0.005-0.011 phosphorous
Claim 6
Dependent Claim
23 words
62-37.84 nickel 17.40-18.58 chromium 2.25-3.06 molybdenum 10.07-16.03 cobalt 2.58-2.81 titanium 0.06-0.25 aluminum 0.01-0.92 tungsten 0.0050-0.0066 boron the balance being iron and unavoidable impurities.
Claim 7
Dependent Claim
23 words
62-37.84 nickel 17.40-18.58 chromium 2.25-3.06 molybdenum 10.07-16.03 cobalt 2.58-2.81 titanium 0.06-0.25 aluminum 0.01-0.92 tungsten 0.0050-0.0066 boron the balance being iron and unavoidable impurities.
Claim 8
Dependent Claim
44 words
Iron-containing alloys as set forth in claim 1 consisting essentially of 0.075 carbon 0.13 manganese 0.21 silicon 0.006 sulphur 0.008 phosphorous 34.74 nickel 17.44 chromium 2.25 molybdenum 10.07 cobalt 2.58 titanium 0.12 aluminum 0.92 tungsten 0.0066 boron the balance being iron and unavoidable impurities.
Claim 9
Dependent Claim
44 words
Iron-containing alloys as set forth in claim 1 consisting essentially of 0.059 carbon 0.10 manganese 0.22 silicon 0.006 sulphur 0.008 phosphorous 34.62 nickel 17.40 chromium 2.25 molybdenum 10.08 cobalt 2.71 titanium 0.06 aluminum 0.92 tungsten 0.0066 boron the balance being iron and unavoidable impurities.
Claim 10
Dependent Claim
33 words
Iron-containing alloys as set forth in claim 1 consisting essentially of 0.047 carbon 0.50 manganese 0.32 silicon 0.006 sulphur 0.0005 phosphorous 36.92 nickel 18.24 chromium 2.99 molybdenum 16.03 cobalt 2.81 titanium 0.22 aluminum
Claim 11
Dependent Claim
11 words
60 tungsten 0.0050 boron the balance being iron and unavoidable impurities.
Claim 12
Dependent Claim
11 words
60 tungsten 0.0050 boron the balance being iron and unavoidable impurities.
Claim 13
Dependent Claim
44 words
Iron-containing slloys as set forth in claim 1 consisting essentially of 0.048 carbon 0.62 manganese 0.20 silicon 0.006 sulphur 0.010 phosphorous 37.84 nickel 18.58 chromium 3.06 molybdenum 15.50 cobalt 2.81 titanium 0.25 aluminum 0.75 tungsten 0.0056 boron the balance being iron and unavoidable impurities.
Claim 14
Dependent Claim
31 words
Iron-containing alloys as set forth in claim 1 consisting essentially of 0.065 carbon 0.45 manganese 0.23 silicon 0.004 sulphur 0.011 phosphorous 35.43 nickel 17.95 chromium 2.80 molybdenum 11.20 cobalt 2.75 titanium
Claim 15
Dependent Claim
13 words
15 aluminum 0.01 tungsten 0.0052 boron the balance being iron and unavoidable impurities.
Claim 16
Dependent Claim
13 words
15 aluminum 0.01 tungsten 0.0052 boron the balance being iron and unavoidable impurities.