Heat-resistant austenitic stainless steel sheet
AssigneeNippon Steel & Sumikin Stainless Steel Corporation
InventorsYoshiharu Inoue, Fumio Fudanoki, Junichi Hamada
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Abstract
The present invention is directed to a heat-resistant austenitic stainless steel sheet comprising, by mass %, C: 0.03% to 0.06%, N: 0.1% to 0.3%, Si: 1% or less Mn: 3% or less, P: 0.04% or less, S: 0.03% or less, Ni: 5 to 12%, Cr: 15 to 20%, Al: 0.01% to 0.1%, Nb: 0.05% to 0.3%, V: 0.05% to 0.30%, Ti: 0.03% or less, (Nb+V)/(C+N):2 or less and further a balance of Fe and unavoidable impurities, and wherein an amount of precipitates mainly comprised of carbonitrides is 1% or less.
Claims4
A heat-resistant austenitic stainless steel sheet comprising, by mass %,
- C:
- 0.03% to 0.06%,
- N:
- 0.1% to 0.3%,
- Si:
- 1% or less,
- Mn:
- 3% or less,
- P:
- 0.04% or less,
- S:
- 0.03% or less,
- Ni:
- 5 to 12%,
- Cr:
- 15 to 20%,
- Al:
- 0.01% to 0.1%,
- Nb:
- 0.05% to 0.3%,
- V:
- 0.05% to 0.30%,
- Ti:
- 0.03% or less,
- (Nb+V)/(C+N):
- 2 or less and further
- a balance of Fe and unavoidable impurities, and wherein an amount of precipitates mainly comprised of carbonitrides is 1% or less.
Dependencies are inferred from the claim text.