Description
Factory-direct laser cutting — Every SUS304 and SUS316L sheet is cut in our own workshop with in-house physical and chemical labs verifying each heat number before dispatch.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | SUS304/SUS316L Laser-Cut Stainless Steel Sheet |
| Product Type | Machined Steel Product (Laser-Cut Stainless Steel Sheet & Metal Components) |
| Steel Grade | SUS304, SUS316L |
| Standard | ISO 9001:2015 |
| Section Shape | Sheet / Plate (flat) |
| Size Range | Customized sizes acceptable |
| Wall Thickness | 3.0–100 mm |
| Technique | CNC Machining + Laser Cutting + Deburring |
| Surface Treatment | Per customer’s request |
| Application | Industrial equipment / Structural steel fabrication / Machinery components / Architectural metalwork |
| MOQ | 10 pcs |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| EPC Contractors & Industrial Projects | Stainless steel liners, ductwork, and process piping supports for food processing, chemical, and pharmaceutical plants |
| Machinery Manufacturers | Precision-machined brackets, conveyor rollers, and automation frame components |
| Construction & Architecture | Custom-shaped façade panels, stair stringers, and decorative structural inserts |
Material Traceability Decides Whether Your Container Clears Customs
A missing or mismatched mill test certificate halts shipment at the port — no amount of price negotiation fixes that.
Global buyers ordering a custom laser-cut stainless steel sheet supplier often discover the problem only after the container arrives. The chemical composition on the certificate does not match the heat number stamped on the plate, or the certificate references a different standard than what local inspectors expect. I once watched a full container of laser-cut stainless components get rejected at destination because the supplier’s MTC listed SUS304 but the actual material tested closer to a lower-grade 201 variant. The entire lot was scrapped. [NEED_CITE: stainless steel grade verification requirements for customs clearance]
Fragmented sourcing makes this worse — when the sheet comes from one vendor, the cutting from another, and the surface treatment from a third, nobody owns the full traceability chain.
Matching Thickness and Grade to Corrosive and Structural Demands
When an EPC contractor specifies SUS316L for a coastal chemical plant, the laser-cut profile must hold dimensional accuracy across a 100 mm plate while the molybdenum content resists chloride pitting. As a custom laser-cut stainless steel sheet supplier, we cut SUS304 for general indoor industrial use and SUS316L for marine or chemical exposure — the grade selection happens before the first cut, not after a failed salt-spray test. Our in-house lab verifies every heat number against the purchase order before the laser starts, so the MTC matches the physical material your site team receives.
Engineering Compliance and Surface Finish Selection
Stainless steel components for food processing or pharmaceutical facilities must meet surface roughness and passivation standards that go beyond basic dimensional tolerance. [NEED_CITE: stainless steel surface finish standards for food-grade and pharmaceutical applications] The laser cutting process leaves a heat-affected zone that, if not properly deburred and passivated, becomes the first point of corrosion in a washdown environment. We integrate CNC machining, laser cutting, and deburring in a single workflow so that edge quality and surface treatment are controlled together — brushed, polished, pickled, or passivated per your project specification. For structural applications, the cut profile must also conform to fabrication tolerances that allow field welding without re-machining.
Understanding SUS304 vs. SUS316L and the Laser Cutting Process
SUS304 contains 18% chromium and 8% nickel, offering solid general-purpose corrosion resistance at a lower cost. SUS316L adds 2–3% molybdenum and has lower carbon content, which improves resistance to pitting in chloride environments and reduces sensitization during welding. When a project involves both indoor structural frames and outdoor chemical exposure, specifying the correct grade per zone avoids over-spending on 316L where 304 suffices — or worse, under-specifying and facing premature corrosion.
Laser cutting stainless steel between 3.0 mm and 100 mm requires different power settings, assist gases, and pierce strategies. Thin sheets cut cleanly with nitrogen assist for an oxide-free edge suitable for direct welding. Heavy plates above 25 mm need higher power and careful kerf compensation to maintain dimensional accuracy across the full thickness. [NEED_CITE: laser cutting parameters for thick stainless steel plate] Our CNC-integrated workflow handles the full 3.0–100 mm range without outsourcing, so tolerance control stays under one roof.
The Hidden Cost of Unverified Material and Tolerance Drift
Ordering from a supplier who cannot provide a heat-number-linked mill test certificate creates three downstream risks. First, customs authorities in the EU, Middle East, and Southeast Asia increasingly require traceable MTCs — a generic certificate without a heat number gets rejected, and the container sits at port accruing demurrage. [NEED_CITE: import documentation requirements for stainless steel products] Second, if the actual nickel or molybdenum content falls below the SUS316L specification, the material will corrode prematurely in chloride environments, and the replacement cost falls on the buyer. Third, negative thickness tolerance beyond the allowed range reduces the load-bearing cross-section — a 10 mm plate delivered at 9.2 mm may pass the supplier’s outbound check but fail the engineer’s structural calculation on site.
Why Buyers Choose Xin Jiyuan for Laser-Cut Stainless Components
We operate three dedicated production lines with in-house physical and chemical laboratories, meaning every batch of SUS304 and SUS316L is tested before cutting begins — not sampled after. Our factory holds 41 invention patents and offers over 2,800 specifications across our full product range, so when your drawing calls for a non-standard profile in 60 mm SUS316L, we do not need to subcontract. Every order ships with a mill test certificate linking chemical composition to the specific heat number, and we hold ISO 9001:2015, CE (EN 10210/10219), and Singapore FPC certifications. Third-party inspection through SGS or BV is arranged on request. Our export team has handled shipments to over 50 countries, and I personally review every loading plan for heavy plate orders to ensure the container weight distribution meets port handling requirements.
Documentation & Compliance
- Mill test certificate documenting SUS304 or SUS316L chemical composition (C, Cr, Ni, Mo) and mechanical properties per ISO 9001:2015 quality system, linked to individual heat numbers
- ISO 9001:2015 quality management certificate covering the full laser cutting, CNC machining, and deburring process
- SGS or BV third-party inspection report available upon request for destination-country customs or project owner verification
- Material traceability sheet mapping each cut piece to its original plate heat number, thickness, and certified grade
- Complete customs documentation package: commercial invoice, packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- SUS304 and SUS316L sheets separated by interleaving paper and bundled with stainless steel straps to prevent surface scratching and carbon contamination during ocean transit
- Heavy plates above 25 mm thickness loaded with timber dunnage and edge protectors to preserve laser-cut edge quality and prevent container floor damage
- Custom-cut components wrapped in waterproof film with heat-number labels attached to each piece for on-site traceability verification
- Container loading plans optimized per order — mixed-thickness orders stacked with heaviest plates at the bottom to maintain weight distribution within ISO container limits
- FOB, CIF, and DDP shipping options available to over 50 countries with real-time tracking and door-to-door coordination
Start Your Inquiry with Drawings and Grade Requirements
Send your CAD drawings or dimension lists with the required SUS304 or SUS316L grade, thickness, surface finish, and destination port — we return a detailed quotation including unit price, production lead time, applicable certifications, and a preliminary loading plan within 12 hours. For non-standard profiles or multi-thickness orders, we provide a cutting feasibility review before you commit.
Frequently Asked Questions
Q: What is the difference between SUS304 and SUS316L, and which should I choose for my application?
A: SUS304 offers general corrosion resistance with 18% chromium and 8% nickel, suitable for indoor industrial and architectural use. SUS316L adds molybdenum for superior resistance to chloride pitting, making it the correct choice for marine, chemical, and food processing environments. We can advise on grade selection per zone if your project involves mixed exposure conditions.
Q: Can you provide Mill Test Certificates and third-party inspection reports for customs clearance?
A: Yes. Every batch ships with a mill test certificate documenting chemical composition and mechanical properties, linked to the specific heat number stamped on the material. SGS or BV third-party inspection is available upon request for destination-country compliance.
Q: What is the MOQ for custom laser-cut stainless steel components, and can you accept non-standard sizes?
A: The minimum order quantity is 10 pieces. We accept fully customized sizes across the 3.0–100 mm thickness range and can produce non-standard profiles based on your CAD drawings or specifications.
Q: What surface treatment options are available, and how do they affect corrosion resistance?
A: We offer brushed, polished, pickled, and passivated finishes per your project requirements. Pickling and passivation remove the heat-affected layer from laser cutting and restore the full corrosion resistance of the stainless surface, which is critical for chemical and food-grade applications.
Q: How do you handle packaging and logistics for heavy stainless steel plates and precision-cut parts?
A: Sheets and plates are separated by interleaving paper, bundled with stainless steel straps, and loaded with timber dunnage to protect laser-cut edges. Heavy plates are positioned at the container bottom for weight distribution. We offer FOB, CIF, and DDP terms with real-time shipment tracking.
[Request a Quote with Your Drawings and Grade Specification]
Submit your dimension list, SUS304 or SUS316L grade requirement, thickness, surface finish, and destination port — we respond within 12 hours with pricing, mill test certificate details, and a loading plan.
Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxjysteel.com
