1.product Introduction
Zirconium alloy structural materials for fuel rods are desirable in nuclear fuel assembly construction due to their low neutron absorption cross section properties.The transition joint of zirconium clad stainless steel bar is 30-50 × 2-2.5mm, which is used in the nuclear reactor of nuclear power plant.In order to save zirconium alloy, a rare and precious metal material, and reduce the construction cost of nuclear industry, zirconium clad stainless steel bar can achieve this.
2. Zirconium and zirconium alloy
| Grade | The nuclear industry | |||||||
| Zr-0 （Zr01） | UNS R60001 | Zr-2 （ZrSn1.4-0.1） | UNS R60802 | Zr-4 （ZrSn1.4-0.2） | UNS R60804 | |||
| chemical component | major element | Zr | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. |
| Sn | -- | -- | 1.20～1.70 | 1.20～1.70 | 1.20～1.70 | 1.20～1.70 | ||
| Fe | -- | -- | 0.07～0.20 | 0.07～0.20 | 0.18～0.24 | 0.18～0.24 | ||
| Ni | -- | -- | 0.03～0.08 | 0.03～0.08 | -- | -- | ||
| Cr | -- | -- | 0.05～0.15 | 0.05～0.15 | 0.07～0.13 | 0.07～0.13 | ||
| Fe+Ni+Cr | -- | -- | 0.18～0.38 | 0.18～0.38 | -- | -- | ||
| Fe+Cr | -- | -- | -- | -- | 0.28～0.37 | 0.28～0.37 | ||
| impurity element ≤ | Al | 0.007 5 | 0.007 5 | 0.007 5 | 0.007 5 | 0.007 5 | 0.007 5 | |
| B | 0.000 05 | 0.000 05 | 0.000 05 | 0.000 05 | 0.000 05 | 0.000 05 | ||
| Cd | 0.000 05 | 0.000 05 | 0.000 05 | 0.000 05 | 0.000 05 | 0.000 05 | ||
| Ca | -- | -- | -- | 0.003 | -- | 0.003 | ||
| Co | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | ||
| Cu | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | ||
| Cr | 0.02 | 0.02 | -- | -- | -- | -- | ||
| Fe | 0.15 | 0.15 | -- | -- | -- | -- | ||
| Hf | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | ||
| Mg | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | ||
| Mn | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | ||
| Mo | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | ||
| Ni | 0.007 | 0.007 | -- | -- | 0.007 | 0.007 | ||
| Nb | -- | -- | -- | 0.01 | -- | 0.01 | ||
| Pb | 0.013 | -- | 0.013 | -- | 0.013 | -- | ||
| Si | 0.012 | 0.012 | 0.012 | 0.012 | 0.012 | 0.012 | ||
| Sn | 0.005 | 0.005 | -- | -- | -- | -- | ||
| Ti | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | ||
| U | 0.000 35 | 0.000 35 | 0.000 35 | 0.000 35 | 0.000 35 | 0.000 35 | ||
| V | 0.005 | -- | 0.005 | -- | 0.005 | -- | ||
| W | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | ||
| Cl | 0.01 | -- | 0.01 | -- | 0.01 | -- | ||
| C | 0.027 | 0.027 | 0.027 | 0.027 | 0.027 | 0.027 | ||
| N | 0.008 | 0.008 | 0.008 | 0.008 | 0.008 | 0.008 | ||
| H | 0.002 5 | 0.002 5 | 0.002 5 | 0.002 5 | 0.002 5 | 0.002 5 | ||
| O | 0.16 | A | 0.16 | A | 0.16 | A | ||
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