FAQ
Common questions from international buyers evaluating steel refining and furnace materials.
General
What steel refining materials do you supply?
We supply 15 categories of steel refining materials including carbonizers, aluminum products, ferroalloys, silicon carbide, deoxidizers, covering agents, refined slag, quartz sand, vanadium nitrogen alloy, and cored wire.
Which countries do you ship to?
We ship globally to steel mills, foundries, and metal processing facilities across Asia, Europe, the Middle East, Africa, and the Americas.
What is your typical lead time?
Standard orders ship within 7-15 working days. Custom specifications may require 15-25 working days depending on processing requirements.
Product
How do I choose the right carbonizer grade?
Select based on fixed carbon content, sulfur level, and particle size matched to your furnace type: coarser grades for EAF charge carbon, finer grades for ladle carbon adjustment.
What ferrosilicon grades are available?
We supply FeSi 65%, FeSi 72%, and FeSi 75% grades with controlled aluminum, phosphorus, and carbon content for steelmaking and foundry applications.
What are your aluminum ingot specifications?
Our aluminum ingots are available in minimum 99.0% and 99.5% Al purity grades, typically in 20-25 kg ingots suitable for ladle deoxidation.
What silicon carbide purity levels do you offer?
We offer silicon carbide in 85%, 90%, 95%, and 98% SiC content grades, available as grain or briquetted balls for EAF and ladle applications.
Can you supply custom particle sizes?
Yes, we can supply products in custom particle size ranges to match your handling, feeding, or dissolution requirements.
Quality
How do you control product quality?
We implement lot-specific testing, pre-shipment sampling, and Certificate of Analysis documentation for every production batch.
Can you provide a Certificate of Analysis (CoA)?
Yes, we provide a lot-specific Certificate of Analysis with every shipment documenting the measured chemical composition and physical properties.
How do you ensure lot-to-lot consistency?
We source from qualified producers, maintain specification control at the point of origin, and track lot-to-lot variation through CoA records.
Shipping
What packaging options do you offer?
Standard packaging includes 1-ton bulk bags, 25-50 kg small bags, and bulk loose loading, depending on the product and your handling requirements.
What are your container loading specifications?
We load 20-foot and 40-foot containers with typical net weights of 20-27 tons per container depending on product density and packaging type.
Application
Which deoxidizer is best for my process?
The best deoxidizer depends on your steel grade: aluminum-based for killed steels, silicon-based for silicon-killed grades, and composite deoxidizers for general-purpose continuous casting.
What are the guidelines for core wire injection?
Key parameters include injection speed (50-200 m/min), depth below the slag-metal interface, and argon stirring intensity during and after injection.