What it is
Used for technically reviewed deoxidation, calcium treatment and inclusion control in steelmaking and steel foundries; performance depends on grade, deoxidation state, sulfur, feed form and process stage.
Ferroalloys · Silicon series
Calcium silicon alloy
Used for technically reviewed deoxidation, calcium treatment and inclusion control in steelmaking and steel foundries; performance depends on grade, deoxidation state, sulfur, feed form and process stage.
Product codeFA-CASI
Industry application2
Key indicatorsCa / Si · Al / C / P / S
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
- Combined deoxidation
- Calcium treatment and inclusion control
- Silicon adjustment
Where it fits
- After final deoxidation or during ladle refining
- Post-melt deoxidation or tapping/ladle treatment
Boundary not to miss
- Reactive calcium and variable recovery require control; unsuitable addition may cause splashing, CaS or adverse inclusions and nozzle problems
- Transferring calcium treatment across grades without review may create inclusion, casting or performance risks
SELECTION BOUNDARY
Start with the selection boundary
Calcium silicon is not an unconditional substitute for calcium metal, ordinary ferrosilicon or every calcium-treatment cored wire. Confirm Ca/Si, Al, C, P, S, form, sizing/fill, steel grade, final oxygen/sulfur, equipment and the formal TDS.
PRODUCT MANUFACTURING
Product manufacturing process
Calcium-silicon raw materials and smelting routes vary by producer. Commercial material is generally made through controlled smelting or alloying, casting, cooling, crushing, screening and testing. Lump, powder and cored-wire feed must be managed separately.
- 01Confirm silicon/calcium feeds and process route
- 02Controlled smelting or alloying
- 03Cast, cool and control homogeneity
- 04Crush, screen and control fines
- 05Test Ca/Si, residuals, sizing and pack
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
Ca and Si are the principal indicators, with Al, C, P, S and other residuals controlled by grade. Product form, sizing, cored-wire fill condition and pack must be defined in the formal SKU and TDS.
- 01Confirm Ca/Si family and formal SKU
- 02Check main-element and residual guarantees
- 03Separate lump, powder or cored wire by equipment
- 04Confirm pack, moisture control, SDS 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 01Calcium silicon alloyConfirm 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
Calcium silicon alloy
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- Ca / SiAl / C / P / S
- 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
After final deoxidation or during ladle refining
- Furnace / equipment
- BOF/EAF tapping, LF and ladle treatment
- Material / output
- Carbon, alloy and special steels with a reviewed calcium-treatment practice
Steel foundries
Post-melt deoxidation or tapping/ladle treatment
- Furnace / equipment
- EAF, induction furnace and ladle treatment
- Material / output
- Process-validated carbon and alloy cast steels
APPLICATION METHOD
Application method and effect validation
Calcium-silicon treatment must be designed around steel O/S/Al, temperature, slag, target inclusions, measured product Ca/Si and equipment, then closed by plant trials and resampling.
- 01Define deoxidation, calcium-treatment or inclusion objective
- 02Check steel O/S/Al, temperature and slag
- 03Select feed form, stage and stirring method
- 04Trial and verify chemistry, sulfur and inclusions
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
After final deoxidation or during ladle refining
- Furnace / equipment
- BOF/EAF tapping, LF and ladle treatment
- Material / output
- Carbon, alloy and special steels with a reviewed calcium-treatment practice
- Method
- After oxygen, sulfur, aluminium, temperature and slag are controlled, select lump, powder or cored wire to suit the equipment; avoid wet feed and strongly oxidising stages.
- Quantity determination
- Balance the treatment objective, measured Ca/Si, expected recovery and steel conditions, then validate by plant trial; no fixed dose is published without grade and equipment context.
Expected effects
- Can support deoxidation and designed inclusion-shape control
- Introduces silicon in suitable steel grades
Limits and risks
- Reactive calcium and variable recovery require control; unsuitable addition may cause splashing, CaS or adverse inclusions and nozzle problems
02
Steel foundries
Post-melt deoxidation or tapping/ladle treatment
- Furnace / equipment
- EAF, induction furnace and ladle treatment
- Material / output
- Process-validated carbon and alloy cast steels
- Method
- Confirm the melting route, final oxygen/sulfur, aluminium-deoxidation practice and casting requirement before selecting feed form, timing and stirring.
- Quantity determination
- Base the decision on melt analysis, measured product chemistry, treatment objective and furnace-specific trials, with technical confirmation.
Expected effects
- Supports cast-steel deoxidation and validated inclusion control
Limits and risks
- Transferring calcium treatment across grades without review may create inclusion, casting or performance risks
STORAGE & SAFETY
Storage, handling and risk
- Keep strictly dry and never add wet feed to molten metal; control dust, reaction and splashing under the final SDS and calcium-treatment practice.
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 5051—2016 Calcium silicon alloy ↗Standard · 2026-08-17
- JMC calcium-silicon product and steel-cleaning overview ↗Manufacturer source · 2026-08-17
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 includedFA-CASICalcium silicon alloy
- 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.