What it is
This page explains the product's principal composition, application directions and inquiry points; confirm the grade, guaranteed indicators, sizing, packing and process fit before quotation.
Cast-iron materials · Treatment alloys
Bismuth-rare-earth composite inoculant
This page explains the product's principal composition, application directions and inquiry points; confirm the grade, guaranteed indicators, sizing, packing and process fit before quotation.
Product codeFD-INOC-BI-RE
Industry application1
Key indicatorsBi / RE species / RE total · Si / Fe · Ca / Al / sizing
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
- Bi/RE compound inoculation
- Candidate graphite nucleation
- Candidate thin-section structure control
Where it fits
- Ladle, transfer, stream or in-mould inoculation point
Boundary not to miss
- Incorrect selection or timing can cause under-/over-inoculation, slag entrainment, fade or structure variation
SELECTION BOUNDARY
Start with the selection boundary
Bi and rare earths are formula- and melt-dependent; separate literature values cannot simply be added. Confirm through supplier TDS, lot COA, base-iron S/O, section and trial microscopy.
PRODUCT MANUFACTURING
Product manufacturing process
A cast-iron inoculant is generally made from verified FeSi-base alloy and a controlled active-element system by a supplier-declared smelting or remelt-alloying route, then cast, cooled, crushed to narrow sizing, de-fined, homogenised, sampled and tested. Formula, feeds and active-element control are supplier-specific; this page does not depict a Jinsheng-owned line.
- 01Bismuth-rare-earth compound inoculant must be verified as a dedicated FeSi-base inoculant with jointly controlled Bi and a declared RE composition; formula balance and process control are generally supplier-specific.
- 02Confirm the FeSi matrix, active-element feeds, returns and supplier's formal formula identity
- 03Complete controlled smelting or remelt alloying and chemical homogenisation by the manufacturer's route
- 04Cast, cool, crush, screen to narrow sizing and remove uncontrolled fines
- 05Homogenise and sample representatively, then test active elements, sizing, moisture and pack
SPECIFICATIONS & PACKAGING
Grades, specifications, indicators and packaging
An inoculant requires a formal SKU by matrix, active-element system and addition point; similar chemistry does not make inoculation performance interchangeable. The supplier TDS, SDS, sample COA and purchase agreement must fix Si, Fe, actual Ca, Ba, Sr, Zr, RE, Bi and other active elements, Al and limiting residuals, size distribution, fines, moisture, pack, sampling and change control. No fixed values are assumed.
- 01The specification must fix Bi, total RE and composition such as Ce/La, Si, Fe and application-specific Ca, Al, Mg, Pb, Sb and other limits together with test methods, sizing, moisture and pack.
- 02Confirm grey iron, ductile iron or validated CGI use and the supplier's formal inoculant grade
- 03Fix the FeSi matrix, all active elements, limiting residuals and corresponding test methods
- 04Fix sizing, fines and moisture for ladle, stream, in-mould or another approved addition point
- 05Confirm moisture-protected pack, label, TDS, SDS, sample/lot COA and formula-change notification
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 01Bismuth-rare-earth composite inoculantConfirm 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
Bismuth-rare-earth composite inoculant
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
- Key indicators
- Bi / RE species / RE totalSi / FeCa / Al / sizing
- 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
Ladle, transfer, stream or in-mould inoculation point
- Furnace / equipment
- Pouring system after cupola, induction or duplex melting
- Material / output
- Grey, ductile or compacted-graphite iron reviewed for melt S/O, temperature, section and target graphite form
APPLICATION METHOD
Application method and effect validation
The inoculation plan must be set from base-iron chemistry, S/O condition, temperature, holding and pouring time, section thickness, target graphite form and fade window. Validate a small trial by thermal analysis, wedge sample, microscopy and casting performance. Furnace silicon adjustment is not equivalent to pre-pour inoculation, and no fixed kg/t, chill reduction or graphite-count claim applies across iron types.
- 01Use only within a validated iron type, base condition, section thickness and pouring window. Bi/RE balance must come from the formal TDS and plant trial and cannot be replaced by separate single-element additions.
- 02Confirm iron type, base-iron S/O, temperature, section thickness, pouring time and target structure
- 03Check lot COA, sizing and dry condition and set a small trial from the site baseline
- 04Add uniformly at the approved ladle, stream, in-mould or post-inoculation point and record fade time
- 05Use thermal analysis, chill, graphite form/count, carbides, defects and performance to decide approval, correction or stop
- 06Validate thermal analysis, chill, graphite form/count, carbides, fade, defects and mechanical properties, with no fixed synergistic effect promised across castings.
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
Ladle, transfer, stream or in-mould inoculation point
- Furnace / equipment
- Pouring system after cupola, induction or duplex melting
- Material / output
- Grey, ductile or compacted-graphite iron reviewed for melt S/O, temperature, section and target graphite form
- Method
- Select an actual SKU from base-iron condition, inoculation point, sizing and fade time; add uniformly and close the loop with thermal analysis, chill and microscopy.
- Quantity determination
- Determine by trials from base-iron condition, section, treatment point, active elements and fade window; this page provides no fixed plant-independent kg/t rate.
Expected effects
- Supports graphite nucleation and chill control under validated iron conditions
Limits and risks
- Incorrect selection or timing can cause under-/over-inoculation, slag entrainment, fade or structure variation
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
- T/CFA 020207-1—2017 Silicon-based inoculants for cast iron ↗Standard · 2026-08-19
- Elkem cast-iron inoculant principles and product families ↗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-INOC-BI-REBismuth-rare-earth composite inoculant
- 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.