Claims
- 1. A heat resisting steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, and the balance being Fe with inevitable impurities.
- 2. A heat resisting steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, at least one of 0.001 to 0.050% of B, 0.1 to 3.0% of Nb, 0.001 to 0.50% of Zr and 0.01 to 1.0% of V, and the balance being Fe with inevitable impurities.
- 3. A heat resisting steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, at least one of 0.001 to 0.05% of Mg, 0.001 to 0.05% of Ca and 0.001 to 0.05% of REM (rare earth metal), and the balance being Fe with inevitable impurities.
- 4. A heat resisting steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, to 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, at least one of 0.001 to 0.050% of B, 0.1 to 3.0% of Nb, 0.001 to 0.50% of Zr and 0.01 to 1.0% of V, at least one of 0.001 to 0.05% of Mg, 0.001 to 0.05% of Ca and 0.001 to 0.05% of REM (rare earth metal), and the balance being Fe with inevitable impurities.
- 5. A heat resisting bolt made of steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, and the balance being Fe with inevitable impurities.
- 6. A heat resisting bolt made of steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, at least one of 0.001 to 0.050% of B, 0.1 to 3.0% of Nb, 0.001 to 0.50% of Zr and 0.01 to 1.0% of V, and the balance being Fe with inevitable impurities.
- 7. A heat resisting bolt made of steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, at least one of 0.001 to 0.050% of Mg, 0.001 to 0.05% of Ca, 0.001 to 0.05% of REM (rare earth metal), and the balance being Fe with inevitable impurities.
- 8. A heat resisting bolt made of steel consisting by weight percentage of 0.005 to 0.20% of C, 0.01 to 2.0% of Si, 0.1 to 2.0% of Mn, 20 to 30% of Ni, 10 to 20% of Cr, 3.52 to 4.5% of Ti and 0.1 to 0.7% of Al with the ratio Ti/Al being 7 to 20, at least one of 0.001 to 0.050% of B, 0.001 to 3.0% of Nb, 0.001 to 0.50% of Zr and 0.001 to 0.05% of Ca and 0.001 to 0.05% of REM (rare earth metal), and the balance being Fe with inevitable impurities.
Priority Claims (1)
Number |
Date |
Country |
Kind |
6-064306 |
Feb 1994 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 08/389,657 filed Feb. 16, 1995 abandoned.
Foreign Referenced Citations (6)
Number |
Date |
Country |
56-81661 |
Jul 1981 |
JPX |
58-34129 |
Feb 1983 |
JPX |
61-69950 |
Apr 1986 |
JPX |
61-99659 |
May 1986 |
JPX |
61-217555 |
Sep 1986 |
JPX |
63-213643 |
Sep 1988 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
389657 |
Feb 1995 |
|