What it is
A natural-dolomite family used as a candidate slag former and MgO source in steelmaking; mineral identity, loss on ignition, sizing and calcination state must be explicit in purchasing documents.
Steelmaking auxiliaries · Slag-forming materials
Dolomite for steelmaking
A natural-dolomite family used as a candidate slag former and MgO source in steelmaking; mineral identity, loss on ignition, sizing and calcination state must be explicit in purchasing documents.
Product codeAX-STEEL-DOLOMITE
Industry application1
Key indicatorsCaO / MgO / SiO₂ · Al₂O₃ / Fe₂O₃ · 灼减 / 水分
Order boundaryQuotation and order confirmation
QUICK DECISION
Four answers before reading the technical detail
This section supports initial screening; final grade, addition and effects require operating conditions, formal documents and plant validation.
What it does
- CaO/MgO source
- Slag batch material
- Slag–lining balance support
Where it fits
- Charge preparation or primary slag-forming stage
Boundary not to miss
- Treating natural dolomite as a calcined material can distort reactivity, heat-load and dose decisions
SELECTION BOUNDARY
Start with the selection boundary
This product is natural dolomite for steelmaking, not light-burnt dolomite; each requires a separate SKU, TDS and charging model.
PRODUCT MANUFACTURING
Product manufacturing process
A natural-mineral steelmaking auxiliary is generally selectively quarried from a qualified source, cleared of foreign matter, crushed, screened, homogenized, sampled and tested for chemistry, mineralogy and sizing. This route excludes calcination; light burning or another heat treatment requires a different product identity.
- 01Review quarry source, deposit variation, mineral identity and feed chemistry
- 02Quarry selectively and remove soil, gangue and foreign matter
- 03Crush and screen while controlling fines and cross-source mixing
- 04Homogenize and sample, then test chemistry, mineralogy, loss on ignition, moisture and sizing
- 05Pack or ship bulk with quarry-source and lot identification
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
Specification selection must confirm product identity, guaranteed chemistry, sizing, form, packing, test method and order use together.
- 01Confirm formal product identity, applicable standard, supplier grade and actual production route
- 02Fix principal chemistry, limiting items, physical indicators and the corresponding test methods
- 03Confirm form, size distribution, fines, moisture, flowability or unit mass for storage, handling and charging equipment
- 04Confirm pack, label, TDS, SDS/PSI, sampling rules and lot COA
GRADES & SPECIFICATIONS
Grades, specifications, indicators and packaging
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
| Grade / family | Chemistry | Size and form | Packaging |
|---|---|---|---|
| Specification direction 01Dolomite for steelmakingConfirm grade, applicable standard and guaranteed values before quotation |
| Confirm against the addition method, equipment and order requirements | Confirm pack format, net weight and labels in the quotation and order |
ORDER SPECIFICATION CONFIRMATION
What must be confirmed before this becomes an order specification
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
- 01Confirm the product, grade, application and supply scope
- 02Fix guaranteed chemistry, sizing, form and packing in the quotation and order
- 03Agree sampling, test methods, acceptance rules and lot COA fields
- 04Confirm the required TDS, SDS/PSI, labels and delivery documents
SELECTION AND COMPARISON
Compare specification directions by indicators and operating conditions
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
01Specification direction
Dolomite for steelmaking
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- CaO / MgO / SiO₂Al₂O₃ / Fe₂O₃灼减 / 水分
- Size and form
- Confirm against the addition method, equipment and order requirements
- Packaging
- Confirm in the quotation and order
INDUSTRY APPLICATION
Industry, furnace, material and addition point
Confirm the process position before method and quantity calculations; an application relationship for one furnace or material must not be copied to another.
Steelmaking plants
Charge preparation or primary slag-forming stage
- Furnace / equipment
- BOF and EAF slag-forming systems
- Material / output
- Steel heats requiring a reviewed CaO/MgO source and heat balance
APPLICATION METHOD
Use scenarios, method, effect and risk validation
Natural dolomite can be a candidate CaO/MgO source in BOF/EAF charges, but loss on ignition, decomposition heat demand, other charge carry-in and target slag MgO require mass and heat balances. Correct batching can supply the target slag; treating it as light-burnt dolomite or lime can distort reactivity, heat load, dose and lining-protection decisions. Verify by slag samples, temperature and furnace response; no fixed replacement ratio applies.
- 01Confirm steel grade, process point, equipment, initial state, process objective and prohibited conditions
- 02Check the actual SKU, lot COA, TDS, SDS/PSI and site history
- 03Run a small site trial from mass/heat balances or the equipment window without copying a fixed cross-plant dose
- 04Resample or record slag, steel, temperature, equipment response, defects and performance before approval, correction or stop
PROBLEM AND SOLUTION
From operating objective to effect verification
Each application explains the role, method, quantity principle and risk boundary; the final proposal is confirmed against operating conditions and lot documents.
01
Steelmaking plants
Charge preparation or primary slag-forming stage
- Furnace / equipment
- BOF and EAF slag-forming systems
- Material / output
- Steel heats requiring a reviewed CaO/MgO source and heat balance
- Method
- Add under the charge practice after confirming mineral chemistry, loss on ignition and heat load; do not assume the reactivity of light-burnt dolomite.
- Quantity determination
- Use mass and heat balances for target slag CaO/MgO, other charge carry-in and loss-on-ignition effects, then verify with slag samples.
Expected effects
- Provides a CaO/MgO source for the target slag when correctly batched
Limits and risks
- Treating natural dolomite as a calcined material can distort reactivity, heat-load and dose decisions
STORAGE & SAFETY
Storage, handling and risk
- Prevent soil, foreign matter and cross-mixing between quarry sources; control dust during crushing, screening and charging.
This section does not replace the company's final SDS/PSI or the plant safety procedure.
REFERENCE AND ORDER BOUNDARY
Use industry references to understand, then order documents to confirm
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
DOCUMENTS & MEDIA
Images, TDS, SDS and COA
Document availability depends on the product, lot, destination market and order agreement.
TDS
Confirms product identity, guaranteed indicators, sizing, form and packing.
SDS / PSI
Confirms storage, handling, protection and market-specific safety information.
COA
Links a specific lot to test items, results, methods and issue information.
INDUSTRY TECHNICAL REFERENCES
Selected external reference material
The following items come from licensed public media or original producer websites and explain similar products or typical processes only. They are not Jinsheng photographs, TDS, SDS or lot COA and create no supply commitment.
COA field template (not a certificate)
A blank structure for lot, chemistry, sizing, method, disposition and issue data. It contains no test result and cannot be used for delivery.
Jinsheng blank COA field template · 2026-08-14Open field template ↗SOURCES
Public references and verification dates
- YB/T 5278—2020 Dolomite for steelmaking, official record ↗Standard · 2026-08-19
Public sources supplement general facts; they do not replace Jinsheng's formal product specification, TDS or lot COA.
INQUIRY PREPARATION
Prepare these operating conditions for a more precise technical response
Please provide the specification, quantity, destination, and contact information.
Already includedAX-STEEL-DOLOMITEDolomite for steelmaking
- 01Target industry, steel grade or casting material
- 02Furnace type, equipment, melt weight and current operating practice
- 03Measured chemistry, target chemistry and permitted residuals
- 04Planned addition point, temperature, slag and stirring conditions
- 05Current product, addition, recovery or operating-issue record
- 06Required size, form, packaging, quantity and destination
- 07Available melt analysis, microscopy, photographs or trial results
TECHNICAL AND QUOTATION CONSULTATION
Send the operating conditions for human review
Domestic inquiries are handled by the Domestic Sales Department and international inquiries by the International Sales Department. Price, availability and lead time are confirmed for each inquiry based on specification, quantity and delivery location.