About HSN Code 73221100

HSN Code 73221100 covers Of Cast Iron and attracts a GST rate of 18%. For intra-state supplies, this is split as 9% CGST + 9% SGST. For inter-state supplies, 18% IGST is charged. This code falls under the Metals & Hardware sector (Steel trader, hardware shop, aluminium).

How to Use HSN Code 73221100 on GST Invoices

• Include the HSN code 73221100 on every GST invoice for of cast iron
• Businesses with turnover above ₹5 crore must use 6-digit HSN codes
• Turnover between ₹1.5–5 crore: 4-digit codes are sufficient
• The HSN code must match the product/service description on your invoice
• Incorrect HSN codes can lead to GST notices and ITC mismatches

Related HSN Codes

• 73221900 — Other
• 73229010 — Air Heaters and Hot Air Distributors
• 73229090 — Parts of Air Heaters and Hot Air Distributors

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Last verified: 2026-06-26 · Source: CBIC Master Tariff