What it is
A calcined-lime family for slag formation and basicity management in BOF, EAF and ladle metallurgy; reactivity, burn condition, sizing and handling state must be confirmed for the use point.
Steelmaking auxiliaries · Slag-forming materials
Metallurgical lime
A calcined-lime family for slag formation and basicity management in BOF, EAF and ladle metallurgy; reactivity, burn condition, sizing and handling state must be confirmed for the use point.
Product codeAX-MET-LIME
Industry application1
Key indicatorsCaO / MgO / SiO₂ · S / P · 灼减 / 水分 / 活性度
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
- Slag formation
- Basicity adjustment
- Establishing conditions for impurity capture
Where it fits
- Primary slag formation, tapping slag adjustment or ladle refining
Boundary not to miss
- Hydration, over-burning or sizing mismatch can reduce effective reaction and increase dust or splash risk
SELECTION BOUNDARY
Start with the selection boundary
Metallurgical lime is not an alias for raw or light-burnt dolomite; their CaO/MgO sources, calcination state and lining-protection roles require separate accounting.
PRODUCT MANUFACTURING
Product manufacturing process
Calcined-mineral products generally pass through quarry and chemistry review, crushing and screening, controlled calcination, cooling, finished sizing, reactivity/calcination-state and chemistry testing, and moisture-protected logistics. Kiln type, temperature schedule, fuel and specific controls belong to the actual manufacturer's documentation and are not assumed here.
- 01Confirm quarry source, mineral identity, feed chemistry and foreign-material control
- 02Crush and screen to the feed sizing required by the kiln
- 03Calcine and cool under the actual practice while managing underburning, overburning and degradation
- 04Test chemistry, loss on ignition, reactivity/calcination state, sizing and moisture
- 05Store sealed and dry, identify lots and control ageing from production to use
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
The specification must use the applicable standard and actual TDS to fix CaO, MgO, SiO₂, S, P and other chemistry, together with loss on ignition, reactivity/burn condition, sizing, fines, moisture, degradation, packing and sampling method. The page publishes no unapproved chemistry or reactivity guarantee; lime, natural dolomite and light-burnt dolomite require separate acceptance.
- 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 01Metallurgical limeConfirm 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
Metallurgical lime
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- CaO / MgO / SiO₂S / P灼减 / 水分 / 活性度
- 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
Primary slag formation, tapping slag adjustment or ladle refining
- Furnace / equipment
- BOF, EAF, LF and ladle
- Material / output
- Carbon and alloy steel, plus reviewed stainless-steel slag systems
APPLICATION METHOD
Use scenarios, method, effect and risk validation
Metallurgical lime may be used for BOF, EAF and LF/ladle slag formation, but addition must be calculated from target slag mass/basicity after deducting charge, carryover slag and other CaO sources, then closed by slag samples. Qualified material can help establish the target slag; hydration, overburning, underburning or sizing mismatch can reduce reaction, increase dust/splash and affect slag/lining. No universal kg/t can guarantee the effect.
- 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
Primary slag formation, tapping slag adjustment or ladle refining
- Furnace / equipment
- BOF, EAF, LF and ladle
- Material / output
- Carbon and alloy steel, plus reviewed stainless-steel slag systems
- Method
- Add in batches or at approved points according to furnace, carryover slag, target slag system and lining, keeping wet material away from molten steel.
- Quantity determination
- Calculate from target slag mass and basicity after deducting charge, lining, recycled slag and other effective CaO sources, then correct from slag samples.
Expected effects
- Helps establish the target slag system when chemistry, reactivity and charging practice are matched
Limits and risks
- Hydration, over-burning or sizing mismatch can reduce effective reaction and increase dust or splash risk
STORAGE & SAFETY
Storage, handling and risk
- Exclude rain and moisture to prevent hydration heat and caking; control alkaline dust and use PPE specified by the SDS.
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 042—2014 Metallurgical lime, official record ↗Standard · 2026-08-19
- YB/T 105—2025 Physical test methods for metallurgical lime, 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-MET-LIMEMetallurgical lime
- 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.