Ferritic stainless steel sheet, method for producing the same, and part
AssigneeNippon Steel Stainless Steel Corporation
InventorsJunichi Hamada, Atsutaka Hayashi
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Abstract
The present invention has as its technical problem to prevent cracking when producing a steel sheet by ferritic stainless steel sheet and provide a ferritic stainless steel sheet excellent in toughness and a part using the same. To solve this technical problem, the present invention provides steel comprised of, by mass %, C: 0.001 to 0.030%, Si: 0.01 to 1.00%, Mn: 0.01 to 1.00%, P: 0.010 to 0.050%, S: 0.0002 to 0.0100%, Cr: 10.0 to 20.0%, N: 0.001 to 0.030%, Nb: 0.10 to 0.40%, B: 0.0002 to 0.0030%, Al: 0.005 to 0.100%, and a balance of Fe and unavoidable impurities in which the amount of solute Nb being less than or equal to a smaller value of 0.20 and (Nb content-0.08) mass %.
Claims10
A ferritic stainless steel sheet comprising, by mass %,
- C:
- 0.001 to 0.030%,
- Si:
- 0.01 to 1.00%,
- Mn:
- 0.01 to 1.00%,
- P:
- 0.010 to 0.050%,
- S:
- 0.0002 to 0.0100%,
- Cr:
- 10.0 to 20.0%,
- N:
- 0.001 to 0.030%,
- Nb:
- 0.10 to 0.40%,
- B:
- 0 to 0.0030%,
- Al:
- 0 to 0.100%,
- Ti:
- 0 to 0.20%,
- Ni:
- 0 to 1.00%,
- Mo:
- 0 to 2.0%,
- Cu:
- 0 to 3.0%,
- V:
- 0 to 1.00%,
- Mg:
- 0 to 0.0030%,
- Sn:
- 0 to 0.30%,
- Sb:
- 0 to 0.30%,
- Zr:
- 0 to 0.10%,
- Ta:
- 0 to 0.10%,
- Hf:
- 0 to 0.10%,
- W:
- 0 to 2.00%,
- Co:
- 0 to 0.20%,
- Ca:
- 0 to 0.0030%,
- REM:
- 0 to 0.050%,
- Ga:
- 0 to 0.10%,
- a balance of Fe and unavoidable impurities,
- an amount of solute Nb being less than or equal to a smaller value of 0.20 mass % and (Nb content-0.08) mass %.
Dependencies are inferred from the claim text.