US2019169721A1PendingUtilityA1
Martensitic steel with delayed z-phase formation, and component
Est. expiryApr 15, 2036(~9.7 yrs left)· nominal 20-yr term from priority
C22C 38/52C22C 38/001C22C 38/54C22C 38/46F01D 25/005C22C 38/44C22C 38/04C22C 38/02C22C 38/48F22B 37/04C21D 6/002C22C 38/40
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Claims
Abstract
An iron-based steel comprising at least (in wt. %): carbon (C): 0.01%-0.10%; silicon (Si): 0.02%-0.7%; manganese (Mn): 0.3%-1.0%; chromium (Cr): 8.0%-10%; molybdenum (Mo): 0.1%-1.8%; cobalt (Co): 0.8%-2.0%; nickel (Ni): 0.008% -0.20%; boron (B): 0.004% -0.01%; nitrogen (N): 0.03% -0.06%; vanadium (V): 0.1% -0.3%, particularly 0.15% -0.022% of vanadium (V), more particularly 0.185% of vanadium (V); niobium (Nb): 0.01% -0.07%; optionally tungsten (W): 2.0% -2.8%, particularly 2.4% of tungsten; the remainder being iron (Fe); wherein said steel consists in particular of these elements.
Claims
exact text as granted — not AI-modified1 . An iron-based alloy comprising at least (in % by weight):
Carbon (C): 0.01%-0.10%, Silicon (Si): 0.02%-0.7%, Manganese (Mn): 0.3%-1.0%, Chromium (Cr): 8.0%-10%, Molybdenum (Mo): 0.1%-1.8%, Cobalt (Co): 0.8%-2.0%, Nickel (Ni): 0.008%-0.20%, Boron (B): 0.004%-0.01%, Nitrogen (N): 0.03%-0.06%, Vanadium (V): 0.1%-0.3%, Niobium (Nb): 0.01%-0.07%, balance iron (Fe).
2 . A component or powder comprising at least an alloy as claimed in claim 1 .
3 . The alloy or component as claimed in claim 1 consisting of iron, carbon, silicon, manganese, chromium, molybdenum, cobalt, nickel, boron, nitrogen, vanadium, and niobium.
4 . The alloy or component as claimed in claim 1 which does not contain copper.
5 . The alloy or component as claimed in claim 1 which does not contain titanium.
6 . The alloy or component as claimed in claim 1 which does not contain aluminum.
7 . The alloy or component as claimed in claim 1 containing tungsten.
8 . The alloy or component as claimed in claim 1 containing 0.01%-0.05% of carbon.
9 . The alloy or component as claimed in claim 1 containing 0.3%-0.4% of silicon.
10 . The alloy or component as claimed in claim 1 containing 0.4%-0.6% of manganese.
11 . The alloy or component as claimed in claim 1 containing 8.6%-9.6% of chromium.
12 . The alloy or component as claimed in claim 1 containing 0.1%-0.2% of molybdenum (Mo).
13 . The alloy or component as claimed in claim 1 containing 1.6%-2.0% of cobalt.
14 . The alloy or component as claimed claim 1 containing 0.005%-0.015% of nickel.
15 . The alloy or component as claimed in claim 1 containing 0.004%-0.008% of boron.
16 . The alloy or component as claimed in claim 1 containing 0.03%-0.07% of niobium.
17 . The alloy or component as claimed in claim 1 containing 0.06%-0.1% of carbon.
18 . The alloy or component as claimed in claim 1 containing 0.04%-0.06% of silicon.
19 . The alloy or component as claimed in claim 1 containing 0.7%-0.9% of manganese.
20 . The alloy or component as claimed in claim 1 containing 1.4%-1.6% of molybdenum.
21 . The alloy or component as claimed in claim 1 containing 0.85%-1.1% of cobalt.
22 . The alloy or component as claimed in claim 1 containing 0.1%-0.2% of nickel.
23 . The alloy or component as claimed in claim 1 containing 0.007%-0.01% of boron.
24 . The alloy or component as claimed in claim 1 containing 0.015%-0.025% of niobium.
25 . The alloy or component as claimed in claim 1 which does not contain tungsten.
26 . The alloy or component as claimed in claim 7 containing 2.0%-2.8% tungsten.Join the waitlist — get patent alerts
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