Item Requirements
○
Article Name: C103 Niobium Alloy Spherical Powder
○ Type and Quantity
Item No.
Item
Q'ty
1
- 15~63 μm (Fine) for DED
- Ingot ASTM B652:
o Niobium (Nb) balance
o Titanium (Ti) 0.7 - 1.3 %
o Hafnium (Hf) 9 - 11 %
o Zirconium (Zr) <0.7 %
o Tungsten (W) <0.5 %
o Tantalum (Ta) <0.5 %
o Oxygen <225 ppm
o Nitrogen <100 ppm
o Carbon <150 ppm
o Hydrogen <15 ppm
5 kg
2
- 63~105 μm (Coarse) for DED
- Ingot ASTM B652:
o Niobium (Nb) balance
o Titanium (Ti) 0.7 - 1.3 %
o Hafnium (Hf) 9 - 11 %
o Zirconium (Zr) <0.7 %
o Tungsten (W) <0.5 %
o Tantalum (Ta) <0.5 %
o Oxygen <225 ppm
o Nitrogen <100 ppm
o Carbon <150 ppm
o Hydrogen <15 ppm
15 kg
○ Delivery Date : Until the end of June, 2025
○ Delivery Item
1. C103 Niobium alloy Spherical Powder described in the above table
2. Material Inspection Sheet (Chemical composition and Powder size distribution) for the
same lot as the powder being delivered
○ Warranty Period : one (1) year after the arrival of Items at KARI site
○ Performance bond : Ten percent (10%) of total Contract Price in the form of irrevocable
stand-by letter of credit, Surety bond, Cash or Bank Guarantee with validity until the end of
warranty period.