STAINLESS-STEEL FILLER METAL · SPECIFICATION-LED SOURCING
ER316LSi Stainless-Steel Welding Consumables
Technical sourcing of ER316LSi solid wire and rods by exact classification, welding process, diameter, package, documentation and project requirements.
MNK-G.S.A coordinates sourcing for marine repair, stainless-steel fabrication, piping and industrial projects against the specified product and documentation requirements.
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Material classification
- ESAB Exaton 19.12.3.LSi GTAW lists AWS A5.9 ER316LSi and EN ISO 14343-A W 19 12 3 L Si.
- ESAB OK Autrod 316LSi GMAW lists AWS A5.9 ER316LSi and EN ISO 14343-A G 19 12 3 L Si.
- ISO 14343:2025 is published; ISO 14343:2017 is withdrawn. The applicable edition must be confirmed for the offered product.
- The named product classifications do not automatically qualify another process, product form, factory or manufacturer.
Standards and supply requirements
| AWS reference and product classification | Reference: AWS A5.9/A5.9M:2022. ESAB lists AWS A5.9 ER316LSi. |
|---|---|
| International standard | ISO 14343:2025 |
| GMAW wire: manufacturer classification | ESAB OK Autrod 316LSi: EN ISO 14343-A G 19 12 3 L Si |
| GTAW rod: manufacturer classification | ESAB Exaton 19.12.3.LSi: EN ISO 14343-A W 19 12 3 L Si |
| Manufacturer packaging examples | ESAB OK Autrod 316LSi (GMAW): 1.2 mm / 15 kg (1632129820). ESAB Exaton 19.12.3.LSi (GTAW): 1.6 mm / 5 kg (S63216R150). Catalogue examples only, not stock commitments. Confirm the complete item, current availability and batch documentation. ESAB OK Autrod 316LSi - ordering information (Undated public product page; ordering information checked 2026-10-15, p. Ordering information: item 1632129820) ESAB Exaton 19.12.3.LSi GTAW - ordering information (Undated public product page; ordering information checked 2026-10-15, p. Ordering information: item S63216R150) |
| Ordering requirements | Confirm the exact wire or rod, diameter, package, manufacturing location, approvals, batch certificate, quantity and delivery requirements. |
| Selection requirements | Approved WPS/PQR, base material, joint design, service conditions, classification-society and OEM requirements, and customer specification. |
Application and selection limits
ESAB identifies Exaton 19.12.3.LSi for welding 316, 316L and 316Ti stainless steels, among other grades. This product-specific guidance is not blanket approval for every stainless steel, process or service condition. Confirm the base material, service requirements and approved WPS before selection.
RFQ and Quality Controls
- Exact base-material grade and product standard, thickness and joint configuration
- Required AWS and/or EN ISO classification; wire or rod, diameter and package
- Approved WPS/PQR, welding process, shielding and backing gas, heat input and interpass requirements
- Required classification-society, OEM or independent approvals and manufacturing location
- Batch certificate, chemical analysis, traceability, quantity and delivery destination
Related Technical Pages
Technical Sources
Sources checked: 27 September 2026.
GMAW wire and GTAW rod are identified separately above. These classifications are taken from the named manufacturer products, not inferred from the grade number alone. Confirm the current datasheet, standard edition and certificate for the exact offer.
- ESAB Exaton 19.12.3.LSi: GTAW rod: classification and product data
- ESAB OK Autrod 316LSi: GMAW wire: classification and product data
- AWS A5.9/A5.9M:2022: official scope
- ISO 14343:2025: official record
Packaging entries are catalogue examples, not stock commitments or a complete size range. Approvals depend on the product and manufacturing location. The references do not imply a supply partnership or approval for a project; the customer specification and approved welding procedure govern selection.
Relevant ISO Reference
Use the current authorised ISO publication together with the governing specification, manufacturer documentation and project requirements. A reference link alone does not establish grade equivalence, product compliance or application approval.
Send Your Technical Inquiry
Send the base material, filler classification, welding process, approved WPS or project standard, diameter, package, quantity, documentation requirements and delivery destination.