Description
Factory-Direct 904L Plate — In-house mill production ensures full heat-number traceability from slab to finished sheet.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | 904L Stainless Steel Plate |
| Product Type | Stainless Steel Plate |
| Steel Grade | 904L (Super Austenitic) |
| Standard | TISI (Thai Industrial Standards Institute) |
| Thickness Range | 1mm / 2mm / 3mm / 6mm (22 Gauge and other gauges available) |
| Surface Finish | HL (Hairline) |
| Technique | Cold Rolled / Hot Rolled |
| Cutting Service | Custom cutting per engineering drawings |
| Certification | TISI Certified |
| Application | Office Building / Architectural Cladding / Interior Decoration / Industrial Equipment |
| MOQ | 1 Ton |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Commercial Construction | Office building facades, architectural cladding panels, interior wall decoration |
| Chemical Processing | Acid wash tank linings, corrosion-resistant vessel components, piping flanges |
| Industrial Equipment | Marine environment structural trim, exhaust ductwork, pollution control scrubbers |
Why Chemical Composition Traceability Decides Whether Your 904L Stainless Steel Plate Passes Site Inspection
A 0.8% nickel deviation turns premium super austenitic steel into scrap at port — and the buyer pays for return freight plus delay penalties.
When fabrication is outsourced overseas, buyers face a fundamental trust gap: the Mill Test Certificate may claim 904L chemistry, but without in-house steel production, there is no way to verify that the certificate matches the actual material shipped. Third-party sourcing creates broken traceability chains where heat numbers cannot be cross-referenced to slab chemistry. On a recent Southeast Asian chemical plant project, a batch of 904L plate arrived at destination only to fail SGS re-inspection — nickel content fell short of the super austenitic threshold, triggering full rejection, return shipping costs, and liquidated damages for schedule delay. [NEED_CITE: super austenitic stainless steel corrosion resistance mechanisms in sulfuric acid environments]
Matching 904L Stainless Steel Plate to Aggressive Chemical and Architectural Environments
The 904L alloy’s elevated molybdenum and copper content delivers corrosion resistance far beyond 316L in sulfuric acid, phosphoric acid, and chloride-laden marine atmospheres. For architectural cladding on commercial buildings, the HL (Hairline) surface finish provides a consistent directional grain pattern that conceals handling marks and maintains visual uniformity across large facade areas. Our vertically integrated production — from raw slab melting through cold rolling to final HL finishing — means every 904L stainless steel plate carries a heat number traceable to our own mill chemistry records, eliminating the documentation gaps that plague broker-sourced material.
Engineering Compliance and Surface Finish Selection for 904L Plate
Super austenitic grades like 904L are specified where standard austenitic stainless steels fail — particularly in sulfuric acid concentrations above 5% and in coastal environments with sustained chloride exposure. The TISI certification on our 904L plate ensures compliance with Thai market import requirements, avoiding customs holds that plague uncertified shipments. For interior decoration applications, the HL finish offers a balance between aesthetic appeal and fingerprint resistance, while industrial equipment fabricators may require hot rolled surfaces for subsequent forming operations. CNC plasma and flame cutting services allow precision blanking to exact dimensions per engineering drawings, reducing on-site waste and secondary machining costs. [NEED_CITE: 904L vs 316L pitting resistance equivalent number comparison]
Understanding 904L Alloy Chemistry and Rolling Process Impact on Final Properties
The 904L designation indicates a super austenitic stainless steel with approximately 20% chromium, 25% nickel, 4.5% molybdenum, and 1.5% copper — chemistry that delivers superior resistance to pitting and crevice corrosion compared to 316L. Cold rolled 904L plate in thinner gauges (1mm–3mm) achieves tighter dimensional tolerances and smoother surface finish suitable for architectural applications, while hot rolled material in heavier thicknesses (6mm and above) serves industrial equipment where surface appearance is secondary to corrosion performance. The HL surface finish is achieved through controlled abrasive belt grinding in a single direction, creating the characteristic linear grain pattern that distinguishes architectural-grade stainless steel from mill-finish industrial material. Custom cutting via CNC plasma ensures edge quality consistent with the base material’s corrosion resistance, avoiding heat-affected zone degradation that compromises performance in aggressive environments.
The Hidden Cost of Procuring 904L Stainless Steel Plate from Fragmented Supply Chains
When buyers source from traders rather than integrated producers, material certification becomes a paper exercise rather than a verifiable fact. A Mill Test Certificate from a third-party supplier may document correct chemistry, but without heat-number traceability to actual slab production, there is no guarantee the certificate matches the plate delivered. On international projects, this gap manifests as customs clearance delays when TISI or other national certification cannot be substantiated, as failed third-party inspections requiring re-shipment at buyer’s expense, and as structural safety concerns when corrosion-resistant components underperform in service. [NEED_CITE: material traceability requirements for pressure vessel and structural stainless steel]
Why Integrated Mill-to-Plate Production Eliminates Procurement Risk for 904L Stainless Steel Plate
Our own steel production facility means we control chemistry from the melt shop through final rolling — every 904L stainless steel plate carries a heat number that traces directly to our ladle analysis records, not to a broker’s re-issued certificate. The TISI certification is maintained through continuous compliance auditing, not through batch-by-batch testing of purchased material. Our in-house CNC cutting facility processes plate to exact dimensions per your engineering drawings, eliminating the coordination delays that occur when fabrication is separated from material supply. With over 2,800 specifications in our raw material inventory, we maintain stock of common 904L thicknesses to support typical production lead times without compromising chemistry verification. Professional export packing and loading expertise ensures HL surface finish is protected during ocean transit, preventing cosmetic damage that would require costly re-finishing at destination.
Documentation & Compliance
- Mill Test Certificate documenting 904L chemical composition (Cr, Ni, Mo, Cu content) and mechanical properties per super austenitic standards
- TISI certification for Thai market customs clearance and regulatory compliance
- Material traceability report linking each plate to heat number and ladle chemistry from in-house melt shop
- SGS or BV third-party inspection report available for pre-shipment verification at our facility
- Complete export documentation including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- HL surface 904L plate bundled with protective interleaving paper and edge guards to prevent surface scratching during transit
- Custom-cut plates nested and strapped to steel pallets, optimized for container loading based on 1mm–6mm thickness range
- Heat number and 904L grade identification stenciled on each bundle for site receiving verification
- Seaworthy export packing with moisture-resistant wrapping for ocean shipment to Southeast Asian and Middle Eastern ports
- FOB, CIF, and DDP delivery terms available with professional oversized cargo loading expertise
Initiating Your 904L Stainless Steel Plate Procurement
Submit your engineering drawings with specified thickness, surface finish, and quantity to receive a detailed quotation including material, cutting, and shipping costs. Our engineering team will review shop drawings for material optimization and confirm TISI certification requirements for your destination market before production begins.
Request 904L Stainless Steel Plate Quotation with Mill Test Certificate
Share your project specifications via email at admin@xjystructure.com or contact us at +86 188 5315 7756 (WhatsApp/WeChat) to begin material verification and pricing.
Frequently Asked Questions
Q: What is the difference between 904L and 316L stainless steel plate for chemical processing applications?
A: 904L is a super austenitic grade with higher nickel, molybdenum, and copper content than 316L, providing superior resistance to sulfuric acid, phosphoric acid, and chloride-induced pitting corrosion. Specify 904L when 316L fails in aggressive chemical environments or marine applications with sustained chloride exposure.
Q: Can you provide custom cutting for 904L stainless steel plate per our engineering drawings?
A: Yes, our in-house CNC plasma and flame cutting facility processes 904L plate from 1mm to 6mm thickness to exact dimensions per your drawings. Cutting service is included in quotation with dimensional tolerance confirmation before production.
Q: What certification is provided for TISI market compliance?
A: Our 904L stainless steel plate carries TISI certification maintained through continuous compliance auditing. Mill Test Certificate documents full chemical composition and mechanical properties, with heat-number traceability to our in-house melt shop records.
Q: What is the minimum order quantity for 904L stainless steel plate?
A: The MOQ for 904L plate is 1 Ton. We maintain stock of common thicknesses (1mm, 2mm, 3mm, 6mm) in our vertically integrated inventory to support typical production lead times.
Q: How do you ensure surface finish quality for HL 904L plate during shipping?
A: HL surface 904L plate is bundled with protective interleaving paper and edge guards, then strapped to steel pallets optimized for container loading. Seaworthy export packing with moisture-resistant wrapping prevents surface damage during ocean transit.
Secure Your 904L Stainless Steel Plate with Verified Chemistry and TISI Certification
Submit your specifications to admin@xjystructure.com or call +86 188 5315 7756 for quotation and Mill Test Certificate preview.
