Sulfur Additive
<p>A controlled sulfur additive for cast-iron metallurgy and free-machining steel production, where sulfur must be raised deliberately rather than removed.</p>
- Grade
- S42 / S25
- Also Known As
- Sulfur Raising Additive
- Product Tier
- Specified Within Available Ranges
- Physical Form
- Granule
Product Information
Technical Overview
A controlled sulfur additive for cast-iron metallurgy and free-machining steel production, where sulfur must be raised deliberately rather than removed.
Product Highlights
- Two grades in one product line — S42 at 40–45% and S25 at 23–27% sulfur
- Granular form for even distribution and controllable addition
- Moisture-proof packing, because the additive must stay dry before use
Reference Technical Parameters
| Property / Element | Symbol | Typical / Reference Value | Unit |
|---|---|---|---|
| Sulfur (S42 grade) | S | 40–45 | % |
| Sulfur (S25 grade) | S | 23–27 | % |
| Iron | Fe | 50–60 | % |
| Carbon | C | ≤0.30 | % |
| Silicon | Si | ≤2.00 | % |
| Moisture | H2O | ≤0.50 | % |
Physical Form & Supply
| Form | granule |
|---|---|
| Particle Size / Dimension | 0.2–3 mm |
| Packaging | Moisture-proof bags 25 kg/bag; Jumbo bags 1,000 kg/bag |
| MOQ | 1 metric ton; trial lots negotiable |
| Lead Time | 15–25 days after technical confirmation |
| Supply Mode | Made to order |
Applications
Used where sulfur is a deliberate addition rather than an impurity to be removed, including free-machining steel and selected cast-iron routes.
Technical Notes
Two grades cover the usual range: S42 at 40 to 45 percent sulfur and S25 at 23 to 27 percent sulfur. Keep dry before use.
The values above are product-reference data for technical evaluation. Final acceptance criteria follow the signed specification, contract and batch MTR.
Product Reference
Specifications And Supply Details
- Specification Notes
- <p>Two grades cover the usual range: S42 at 40 to 45 percent sulfur and S25 at 23 to 27 percent sulfur. Keep dry before use.</p>
- Customization
- Not Available
Applications
- Cast Steel
- Foundry
- Steelmaking
<p>Used where sulfur is a deliberate addition rather than an impurity to be removed, including free-machining steel and selected cast-iron routes.</p>