Phosphoric Pig Iron for Ductile Iron Production
Nonalloy pig iron blocks with over 0.5% phosphorus, serving as a base charge in ductile iron manufacturing. Classified under HTS 7201.20.00.00 due to its primary form and high phosphorus content, which aids in nodulizing processes. Ideal for producing spheroidal graphite iron castings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lower phosphorus variants
Pig iron with ≤0.5% phosphorus is the base nonalloy classification in 7201.10.
If contains manganese >0.5% or other alloys
Certain alloyed pig irons go to specific alloy subheadings based on element thresholds.
If considered ferrous slag or scale
Phosphorus-rich slags from pig iron production may classify under Chapter 26 minerals.
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Import Tips & Compliance
• Provide mill test reports confirming nonalloy composition and phosphorus levels for CBP verification
• Avoid packaging that implies further working; ship in bulk pigs to maintain primary form classification
• Watch for contamination claims; no duty reduction for pre-entry rust per Chapter 72 notes
Related Products under HTS 7201.20.00.00
High-Phosphorus Foundry Pig Iron
Pig iron cast in standard pig shapes with phosphorus content exceeding 0.5% by weight, primarily used in foundries for gray iron castings. It falls under HTS 7201.20.00.00 as nonalloy pig iron in primary forms with elevated phosphorus levels, distinguishing it from low-phosphorus variants. This composition enhances fluidity for complex castings like engine blocks.
Basic Pig Iron for Steel Mill Charges
Nonalloy pig iron pigs containing more than 0.5% phosphorus, used as a blast furnace charge in basic oxygen steelmaking. Falls under HTS 7201.20.00.00 for its primary form and compositional specs per Chapter 72 notes. Provides carbon and phosphorus for steel refining.
Gray Iron Pig Iron High Phosphorus Grade
Pig iron in pig form with phosphorus over 0.5% by weight, optimized for gray iron foundry applications. Classified in HTS 7201.20.00.00 as nonalloy pig iron in primary blocks or pigs, leveraging high phosphorus for improved castability. Common in manhole covers and machinery bases.
Industrial High-Phosphorus Pig Iron Blocks
Large blocks of nonalloy pig iron containing more than 0.5% phosphorus, for industrial melting operations. Under HTS 7201.20.00.00 as primary forms without further working, per chapter notes on surface treatments. Suited for heavy castings in construction equipment.
White Pig Iron with High Phosphorus Content
High-phosphorus (>0.5%) nonalloy pig iron designed for white cast iron production, cast in pig or block forms. HTS 7201.20.00.00 applies as it meets the nonalloy primary form criteria with excess phosphorus for hardness in castings. Used in applications requiring wear resistance.
Phosphorus-Rich Nonalloy Spiegeleisen Pigs
Primary form pigs of nonalloy pig iron with >0.5% phosphorus, sometimes called high-P spiegeleisen substitute. HTS 7201.20.00.00 covers this as it lacks alloy elements per notes, used in remelting for specialty irons. Enhances deoxidation in foundries.