Large Crystal Fused Magnesia 97% from Canada
Fused magnesia featuring large periclase crystals (>100μm) for superior thermal stability in ladle refractories, 97% MgO purity. HTS 2519.90.10.00 covers this fused magnesia critical for secondary steelmaking.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include polarized light microscopy reports documenting crystal size distribution
• Cold crushing strength test results (>150 MPa typical) support industrial refractory grade
• Prevent dust contamination during shipping; use sealed bags within bulk containers