What it is
A dedicated Mg-RE-FeSi treatment-alloy family for compacted-graphite iron, controlled by actual formula, base iron, target residual Mg and compacted-graphite rate. The slash in the name denotes market wording within one use family.
Cast-iron materials · Treatment alloys
Rare-earth magnesium-ferrosilicon / magnesium-rare-earth CGI treatment alloy
A dedicated Mg-RE-FeSi treatment-alloy family for compacted-graphite iron, controlled by actual formula, base iron, target residual Mg and compacted-graphite rate. The slash in the name denotes market wording within one use family.
Product codeFD-CGI-REMGSIFE
Industry application1
Key indicatorsMg / RE species / RE total · Si / Fe / Ca / Al · sizing / reaction behaviour
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
- Compacted-graphite iron treatment
- Joint Mg/RE control
- Closed-loop compacted-graphite control
Where it fits
- Treatment-ladle, cover-ladle or another validated magnesium-treatment point
Boundary not to miss
- Magnesium reaction, fume, splash and hot-metal risks require SDS and plant controls; both excess and deficiency can lose structure control
SELECTION BOUNDARY
Start with the selection boundary
A dedicated CGI treatment alloy cannot be automatically replaced by an ordinary nodulariser. Determine it from base-iron S/O, temperature, residual-Mg window, interfering elements, thermal analysis and microscopy; the website promises no fixed compacted-graphite rate.
PRODUCT MANUFACTURING
Product manufacturing process
A cast-iron treatment alloy is generally made from a verified FeSi matrix and Mg, RE, Ca or other active elements by a supplier-declared controlled smelting, remelt-alloying or another verified route, followed by casting, cooling, crushing, screening, homogenising and testing. Actual addition method, furnace and controls for reactive elements must be documented by the manufacturer; this page does not depict a Jinsheng-owned line.
- 01Similar names, forms or uses do not make products interchangeable; confirm product identity, specification, application process and order documents separately.
- 02Confirm the FeSi matrix, active elements, returns and product-use identity
- 03Follow manufacturer documents for controlled smelting or remelt alloying and manage reaction and homogeneity
- 04Cast, cool, crush and screen while controlling fines, oxidation and moisture pickup
- 05Homogenise and sample representatively, then test active elements, sizing, safety and pack condition
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
A treatment alloy requires an SKU by target iron, active-element system and treatment method. Formal documents must fix Si, Fe, Mg, RE, Ca and other active/limiting elements, matrix and phase, form, sizing, fines, moisture, pack, sampling, TDS, SDS/PSI and lot COA. This page does not present a family name or reference chemistry as a company stock grade.
- 01The specification must fix Mg, actual RE composition, Si, Fe and Ca, Al and other limits, and state the CGI-specific grade, phase, sizing, fines, moisture, pack and lot COA.
- 02Confirm ductile iron, CGI or another validated iron type and the supplier's formal treatment-alloy grade
- 03Fix Mg, RE, Ca, Si, Fe and all limiting elements and test methods
- 04Fix form, sizing, fines and moisture for pour-over, sandwich, wire-feeding or another approved practice
- 05Confirm moisture-protected pack, label, TDS, SDS/PSI, lot COA and formula-change control
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 01Rare-earth magnesium-ferrosilicon / magnesium-rare-earth CGI treatment 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
Rare-earth magnesium-ferrosilicon / magnesium-rare-earth CGI treatment alloy
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- Mg / RE species / RE totalSi / Fe / Ca / Alsizing / reaction behaviour
- 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.
Iron foundries
Treatment-ladle, cover-ladle or another validated magnesium-treatment point
- Furnace / equipment
- Dedicated treatment ladle after cupola, induction or duplex melting
- Material / output
- Compacted-graphite iron melt reviewed for base S/O, temperature and target compacted-graphite rate
APPLICATION METHOD
Application method and effect validation
The treatment plan must be based on base-iron chemistry, S/O, temperature, treatment-ladle layout, iron mass, target residual active elements and historical recovery. Use measured lot values for the mass balance and validate reaction intensity, residuals, graphite form, slag entrainment and performance in a small trial. Different iron types and treatment methods do not share a fixed kg/t, recovery or effect claim.
- 01The CGI compacted-graphite window must be set from base-iron S/O, temperature, treatment ladle, target residual Mg/RE, section thickness and downstream inoculation; a ductile-iron nodularising plan cannot be copied directly.
- 02Confirm iron type, base-iron S/O, temperature, iron mass, target residual elements and structure
- 03Check lot COA, sizing and dry condition and complete the mass balance with site historical recovery
- 04Run a small trial with the approved ladle layout, cover, pour-over or feeding sequence and control the reaction
- 05Verify residuals, nodular/compacted state, graphite form, slag entrainment, defects and performance
- 06Close by residual Mg/RE, compacted-graphite ratio/form, carbides, slag entrainment, defects and casting performance; correct or stop immediately when the window is missed.
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
Iron foundries
Treatment-ladle, cover-ladle or another validated magnesium-treatment point
- Furnace / equipment
- Dedicated treatment ladle after cupola, induction or duplex melting
- Material / output
- Compacted-graphite iron melt reviewed for base S/O, temperature and target compacted-graphite rate
- Method
- Arrange the actual treatment alloy for the ladle and reaction-control method; after treatment, deslag, inoculate separately and verify residual Mg, thermal analysis and microscopy.
- Quantity determination
- Calculate from base-iron S/O, treatment temperature, target residual Mg, lot-measured Mg/RE and site-validated recovery; this page publishes no fixed rate or guaranteed effect.
Expected effects
- Builds the target compacted-graphite range under closed-loop control
Limits and risks
- Magnesium reaction, fume, splash and hot-metal risks require SDS and plant controls; both excess and deficiency can lose structure control
STORAGE & SAFETY
Storage, handling and risk
- Keep dry and lot-segregated and prevent mix-ups; dust, fume and hot-metal charging controls must follow the SDS/PSI for the actual form and plant procedures.
- Without a formal SKU, TDS, SDS/PSI and lot COA, no chemistry, grade, sizing, pack, stock, dose, recovery or performance is promised.
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
- GB/T 4138—2024 Rare-earth ferrosilicon magnesium alloy ↗Standard · 2026-08-19
- Elkem nodularisers and treatment methods ↗Manufacturer source · 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 includedFD-CGI-REMGSIFERare-earth magnesium-ferrosilicon / magnesium-rare-earth CGI treatment 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.