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US 2016/0102856 A1Published application
High-chromium heat-resistant steel
AssigneeTenaris Connections Limited
InventorsYusuke Minami, Tatsuo Ono, Giuseppe Cumino, Paola Mariani
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Abstract
The present invention provides a high-chromium heat-resistant steel. The steel contains in mass %, C: 0.08% to 0.13%; Si: 0.15% to 0.45%; Mn: 0.1% to 1.0%; Ni: 0.01% to 0.5%; Cr: 10.0% to 11.5%; Mo: 0.3% to 0.6%; V: 0.10% to 0.25%; Nb: 0.01% to 0.06%; N: 0.015% to 0.07%; B: ≦0.005%, and Al: ≦0.04%. The balance consists of Fe and inevitable impurity elements. The steel shows a martensitic microstructure.
Claims13
A high-chromium heat-resistant steel, consisting of, in mass %:
- C:
- 0.08% to 0.13%;
- Si:
- 0.15% to 0.45%;
- Mn:
- 0.1% to 1.0%;
- Ni:
- 0.01% to 0.5%;
- Cr:
- 10.0% to 11.5%;
- Mo:
- 0.3% to 0.6%;
- V:
- 0.10% to 0.25%;
- Nb:
- 0.01% to 0.06%;
- N:
- 0.015% to 0.07%,
- B:
- 0 to 0.005%;
- and
- Al:
- 0 to 0.04%;
- wherein the balance is Fe and inevitable impurity elements.
21 more elements
Dependencies are inferred from the claim text.