Manufacturing at
the Edge of Precision.
Tube laser cutting. Robotic welding. SFN-grade stainless steel. Passivation and QC that meets the highest international standards.
Tube Laser Cutting
Five-axis CNC tube laser cutting for complex end profiles, notching, and tight tolerances on stainless steel tubes and sections up to 220mm diameter.
Robotic Welding
AWS D1.6 certified robotic MIG and TIG welding for consistent bead geometry and penetration on 304 and 316L stainless steel pipe and sheet fabrications.
Passivation
Chemical passivation per ASTM A967 and ASME BPE standards, restoring the protective chromium oxide layer on all stainless steel components for corrosion resistance and SFN-grade cleanliness.
QC & Testing
Hydrostatic and pneumatic pressure testing per ASME B31.3. Dimensional inspection with CMM. Weld visual inspection and NDT (dye penetrant). Full material traceability.
Stainless Steel —
The Only Choice for Cooling Loops
For liquid cooling loops in data centers, stainless steel is not a premium upgrade — it is the baseline requirement. Here's why: galvanic corrosion from dissimilar metals in cooling loops generates particulate that clogs cold plates and degrades CDU performance. Stainless steel eliminates this risk.
DCE Systems specifies 316L stainless steel for all wetted surfaces in liquid cooling applications. The lower carbon content of 316L makes it ideal for welded assemblies where corrosion resistance in the heat-affected zone is critical. Passivation per ASTM A967 restores and enhances the passive layer after fabrication.
SFN — Stainless Fabrication Network — grade denotes our highest level of surface cleanliness and fabrication quality, developed for data center and semiconductor applications where contamination control is non-negotiable.
Five Steps from Steel to System
Every component that leaves our facility has passed through five rigorous stages of manufacturing and quality control.
Material Selection & ASTM Certification
All raw material is sourced from certified mills with full material test reports (MTRs) confirming chemistry and mechanical properties per ASTM A312 (pipe), A276 (bar), A240 (sheet), and applicable standards. Each heat number is traceable through to the finished assembly. We do not accept material without full documentation.
Tube Laser Cutting
Five-axis CNC tube laser cutting machines produce the complex end profiles, coping cuts, and notches required for clean-fit-up joints on manifolds, headers, and branch connections. Laser cutting eliminates the cold working and burring associated with saw cutting and produces a consistent, repeatable surface for welding preparation. Tolerances held to ±0.1mm on cut profiles.
Robotic Welding — AWS D1.6 Compliance
All structural and pressure-retaining welds are performed by robotic welding systems programmed to qualified welding procedure specifications (WPS). Procedures are qualified to AWS D1.6 Structural Welding Code for Stainless Steel. Robotic execution ensures consistent heat input, travel speed, and shielding gas coverage — producing repeatable radiographic-quality welds at production rates. Manual GTAW (TIG) is used for critical root passes and complex geometries.
Passivation — ASTM A967 / ASME BPE
Following welding and mechanical finishing, all stainless steel components are passivated in our dedicated passivation facility. The process follows ASTM A967 (Standard Practice for Chemical Passivation Treatments for Stainless Steel Parts) and, where required by the application, ASME BPE (Bioprocessing Equipment standard). Passivation removes free iron and other surface contamination, and builds the protective chromium oxide layer that gives stainless steel its corrosion resistance. Post-passivation verification using copper sulfate or high humidity testing confirms treatment effectiveness.
QC, Pressure Testing & Dimensional Inspection
Every pressure-retaining assembly is hydrostatic or pneumatically tested per ASME B31.3 before acceptance. Pressure test records are documented and archived with the job file. Visual weld inspection is performed per AWS D1.6 acceptance criteria. Dye penetrant testing (PT) is applied to critical welds per customer specification or project requirements. CMM dimensional inspection verifies key interfaces. Complete documentation — material certs, weld records, test records, and inspection reports — is delivered with every shipment.
The Standards Behind the Work
Our manufacturing processes are governed by the most demanding international standards in materials, welding, pressure systems, and structural engineering.
Seamless / Welded Pipe
Austenitic stainless steel pipe standard. Governs material chemistry, mechanical properties, and testing requirements for the pipe and tube stock used in our cooling loop fabrications.
Passivation Treatment
The definitive standard for chemical passivation of stainless steel. Specifies nitric acid and citric acid processes, test methods for effectiveness, and requirements for process control. All DCE passivation work conforms to this standard.
Process Piping
ASME Process Piping Code governs design, materials, fabrication, assembly, inspection, and testing of process piping. Our cooling loop piping systems are designed and tested to B31.3 requirements.
Stainless Steel Welding
AWS D1.6 Structural Welding Code — Stainless Steel. Governs welder qualification, welding procedure specification, and weld quality acceptance criteria for all structural welding on stainless steel components.
Structural Steel Design
Applied to structural components in containment systems and ceiling grids. Ensures load-bearing capacity, connection design, and structural integrity for elements that support overhead infrastructure.
Ready to spec your liquid cooling components?
Our engineering team can review your design requirements and provide fabrication recommendations.