What it is
A dedicated starter-flux family used to establish early coverage and initial liquid-slag conditions during casting start, potentially with a verified exothermic system; it is not automatically replaceable by regular mould flux.
Continuous-casting auxiliaries · Casting start
A dedicated starter-flux family used to establish early coverage and initial liquid-slag conditions during casting start, potentially with a verified exothermic system; it is not automatically replaceable by regular mould flux.

QUICK DECISION
This section supports initial screening; final grade, addition and effects require operating conditions, formal documents and plant validation.
A dedicated starter-flux family used to establish early coverage and initial liquid-slag conditions during casting start, potentially with a verified exothermic system; it is not automatically replaceable by regular mould flux.
SELECTION BOUNDARY
Starter flux serves the short casting-start stage only; it is not regular mould flux, tundish cover or ladle cover.
PRODUCT MANUFACTURING
Formulation and manufacturing route for casting powders depend on the specific product. A general route may include mineral, fluxing and carbonaceous feed review, metered blending and—according to the supplier route—raw-material, premelted/fused-and-crushed, spray-granulated or another verified process, followed by homogenization, screening, physical-property testing and moisture-protected packing. Different use locations must retain separate product identities.
SPECIFICATIONS & PACKAGING
A starter-flux specification must identify its dedicated casting-start role, principal oxides, exothermic or fluxing system, ignition/reaction and melting behaviour, sizing, spreadability, moisture, pack, storage and lot testing. Exothermic formulations have risks distinct from regular mould flux; the page publishes no unapproved heat output, reaction time or per-start amount.
GRADES & SPECIFICATIONS
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 01Continuous-casting mould starter fluxConfirm 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
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
SELECTION AND COMPARISON
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
Compare the key indicators below, then confirm grade, guaranteed values, sizing and packing against the operating conditions.
INDUSTRY APPLICATION
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
APPLICATION METHOD
Place strictly at the specified location and timing under the caster start card, then transition to the matched regular mould flux after meniscus and initial liquid slag stabilize. A validated product can help establish initial coverage/liquid slag faster; wrong grade, exothermic behaviour or timing can cause abnormal reaction, agglomeration, entrainment and unstable lubrication. Verify start stability, level, slag film and strand quality; do not use continuously as regular mould flux or as tundish cover.
PROBLEM AND SOLUTION
Each application explains the role, method, quantity principle and risk boundary; the final proposal is confirmed against operating conditions and lot documents.
Steelmaking plants
STORAGE & SAFETY
This section does not replace the company's final SDS/PSI or the plant safety procedure.
REFERENCE AND ORDER BOUNDARY
Supply specifications, packaging, lead time and quality documents are subject to the formal quotation and order confirmation.
DOCUMENTS & MEDIA
Document availability depends on the product, lot, destination market and order agreement.
Confirms product identity, guaranteed indicators, sizing, form and packing.
Confirms storage, handling, protection and market-specific safety information.
Links a specific lot to test items, results, methods and issue information.
INDUSTRY TECHNICAL REFERENCES
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.
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 sources supplement general facts; they do not replace Jinsheng's formal product specification, TDS or lot COA.
INQUIRY PREPARATION
Please provide the specification, quantity, destination, and contact information.
TECHNICAL AND QUOTATION CONSULTATION
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.