Semi Coke

Semi-coke is a critical input in nickel ferroalloy production, particularly within the Rotary Kiln–Electric Furnace (RKEF) process widely used across Asia. Acting as both a reducing agent and energy source, it enables the efficient conversion of nickel ore into nickel pig iron (NPI), a key material in stainless steel manufacturing.

Its cost efficiency, high reactivity, and stable performance make semi-coke the preferred alternative to metallurgical coke for large-scale smelters. As Indonesia continues to lead global nickel production, demand for reliable semi-coke supply remains strong across major industrial hubs.

At HexaHessman Global Group, we provide consistent, high-quality semi-coke tailored to the operational needs of modern smelters. Through strategic sourcing and strong partnerships, we ensure a dependable supply chain that supports performance, efficiency, and growth.

KEY FEATURES

• High fixed carbon content
• Low ash and sulfur
• High reactivity and combustion efficiency
• Lower production cost vs. metallurgical coke
• Environmentally favorable alternative fuel

APPLICATIONS

• Ferroalloy production
• Calcium carbide manufacturing
• Chemical and industrial processes
• Energy generation and heating systems
• Partial replacement for anthracite coal

 GUARANTEED SPECS

• Fixed Carbon: 80–88%
• Ash: 8–15%
• Volatile Matter: 5–10%
• Sulfur: ≤ 0.5%

Metallurgical coke (met coke) is produced through the high-temperature carbonization of coking coal in the absence of oxygen. It is a key raw material in blast furnace ironmaking, where it functions as both a high-energy fuel and a structural support medium, ensuring proper gas flow and furnace permeability during smelting.

In blast furnace operations, met coke enables the reduction of iron ore into molten iron by generating the intense heat required while also acting as the primary carbon source for chemical reduction reactions. Its strength, low impurity levels, and high carbon content make it essential for stable and efficient steel production, directly impacting furnace productivity and output quality.

At HexaHessman Global Group, we focus on supplying consistent, high-quality metallurgical coke that meets the demanding specifications of global steelmakers. Through strategic sourcing and reliable logistics networks, we ensure a stable supply chain that supports uninterrupted blast furnace operations and long-term industrial performance.

KEY FEATURES

• High mechanical strength and stability
• High fixed carbon content
• Low moisture, ash, and volatile matter
• High calorific value
• Excellent permeability for blast furnace efficiency

APPLICATIONS

• Iron and steel production (blast furnaces)
• Foundries and smelting operations
• Ferroalloy manufacturing
• Heavy industrial fuel applications

 GUARANTEED SPECS

• Fixed Carbon:  85–92% 
• Ash:  8–12% 
• Volatile Matter:  ≤ 2% 
• Sulfur:  ≤ 0.7%