Ferrotungsten 70% Tungsten Lumps
Ferrotungsten lumps containing approximately 70% tungsten and 25-30% iron, used as an alloying additive in steel production to enhance hardness and wear resistance. Classified under HTS 7202.80.00.00 as ferrotungsten, a ferroalloy combining iron with tungsten. Supplied in bulk lumps typically 10-100mm for melting into steel baths.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically processed with fluxes or binders for specialized applications
Mixtures of ferroalloys with non-metallic additives exceed Chapter 72 ferroalloy definitions and fall under chemical preparations.
If ground into powder form exceeding basic ferroalloy scope
Ferroalloy powders with significant further working may shift to 'other ferroalloys' statistical suffixes outside pure ferrotungsten.
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Import Tips & Compliance
• Obtain mill certificates verifying tungsten content (typically 65-85%) and compliance with Chapter 72 purity standards to avoid reclassification
• Ensure proper packaging to prevent oxidation; declare exact chemical composition on entry documents as ferroalloys are subject to precise alloy definitions
Related Products under HTS 7202.80.00.00
Ferrosilicon Tungsten 45% Silicon 20% Tungsten
Ferrosilicon tungsten alloy with 45% silicon, 20% tungsten, and balance iron, used in steelmaking for deoxidation and alloying to improve strength and heat resistance. Falls under HTS 7202.80.00.00 as ferrosilicon tungsten per Chapter 72 ferroalloy definitions. Typically supplied in crushed form for electric arc furnace additions.
Ferrosilicon Tungsten FeW-40Si20 Granules
FeW-40Si20 ferrosilicon tungsten granules with 40% silicon and 20% tungsten, applied in welding electrodes and low-alloy steels. HTS 7202.80.00.00 explicitly includes ferrosilicon tungsten as defined in Chapter 72 ferroalloys. Granular form optimizes recovery rates in submerged arc welding.
High-Carbon Ferrotungsten 75% W Granules
Granulated ferrotungsten with 75% tungsten, 1-2% carbon, and iron balance, designed for precise addition in specialty steel like high-speed tools. HTS 7202.80.00.00 covers ferrotungsten regardless of carbon content per Chapter 72 ferroalloy rules. Granules sized 1-10mm ensure uniform dissolution in ladle metallurgy.
Ferrotungsten Low-Carbon Variant 65% W
Low-carbon ferrotungsten with 65% tungsten and under 0.5% carbon, used in clean steel production for aerospace applications requiring high purity. Classified as ferrotungsten under HTS 7202.80.00.00, distinct from tool steels per U.S. Chapter 72 notes. Lumpy form prevents excessive gas evolution during melting.
Premium Ferrotungsten 80% Tungsten Briquettes
Briquetted ferrotungsten with 80% tungsten content, compacted for dense packing and controlled dissolution in stainless steel production. Remains under HTS 7202.80.00.00 as basic ferrotungsten; briquetting doesn't constitute 'further working' per Chapter notes. High tungsten boosts red hardness in cutting tools.