ICNEA 3120—Steelmaking

Where 3120 sits

1. C Manufacturing industry
2. 31 Ferrous metal smelting and rolling processing industry
3. 312 Steelmaking
4. 3120 Steelmaking

What 3120 includes

• Refers to metal purification activities that use oxygen from different sources (such as air and oxygen) to oxidize impurities contained in the charge (mainly pig iron).
• Including smelting activities for the following steels：
• Non-alloy steel, crude steel;
• General purpose carbon structural steel, other ordinary quality non-alloy steel;
• High-quality carbon structural steel, non-alloy steel for cold-rolled rods and wires, non-alloy steel for electricians, high-quality cast carbon steel, easy-to-cut non-alloy structural steel, and other high-quality non-alloy steels;
• Special carbon structural steel, non-alloy steel for special wire bar steel and steel wire, special non-alloy structural steel for aviation, weapons, etc., non-alloy steel for nuclear energy, carbon spring steel, special easy-to-cut steel, carbon tool steel and hollow steel, electromagnetic pure iron, raw material pure iron, otherSpecial quality non-alloy steel;
• Low alloy steel, crude steel;
• General low-alloy structural steel, low-alloy reinforced steel, general low-alloy steel for railways, and other general-quality low-alloy steels;
• High-quality low-alloy structural steel, low-alloy steel for railways, low-alloy steel for oil and gas pipelines, low-alloy weather-resistant steel, and other high-quality low-alloy steels;
• Special low-alloy structural steels, special low-alloy steels for railways, low-alloy steels for nuclear energy, low-alloy steels for low temperatures, and other special-quality low-alloy steels;
• Alloy steel, crude steel;
• Alloy steel for general structures, silicon (aluminum) steel for electricians, alloy steel for geology and petroleum drilling, and other high-quality alloy steels;
• Alloy structural steel, alloy reinforced steel, alloy steel for geology and drilling, alloy spring steel, alloy tool steel, high-alloy tool steel, high-speed tool steel, high-temperature alloy steel, precision alloy steel, corrosion-resistant alloy steel, bearing steel, high-resistance electric heating steel and alloy, non-magnetic steel, permanent magnet steel, Other special quality alloy steels;
• Stainless steel crude steel: chromium-based stainless steel, chromium-nickel-based stainless steel, heat-resistant stainless steel;
• Continuous casting billet: square billet, rectangular billet, slab billet, round billet, special-shaped billet, tube billet;
• Die-cast steel ingot;
• Liquid steel for casting;
• Sedated steel, boiling steel, semi-sedated steel;
• Converter steel: top blown converter steel, bottom blown converter steel, side blown converter steel, composite blown converter steel;
• Electric arc furnace steel: ordinary electric arc furnace steel, DC arc furnace steel;
• Induction furnace steel: vacuum induction furnace steel, non-vacuum induction furnace steel;
• Other furnace types smelt steel.

3120 in other systems