Brushing (appearance texture and direction control)
Suitable for panels, chassis shells and visible surfaces. Please note the drawing direction, appearance surface definition and acceptable scratch standards to improve consistency.
Stainless steel_SUS304 (sheet metal fabrication)
Stainless steel_SUS304 is a very common material option in sheet metal fabrication scenarios, suitable for you Corrosion resistance, appearance texture and cost Make a balance between them.
Quote checklist: Upload your 3D model and, when available, a 2D drawing. Identify the required process, material, quantity, critical dimensions, finish, appearance standard, and target delivery date.
Key Material and Manufacturing Parameters
Engineering note: Values below are typical reference ranges. Final manufacturability, tolerances, material condition, surface finish, cost, and lead time depend on the drawing, geometry, quantity, and selected process.
Upload CAD files and mark critical features for an engineering review before production.
| Process | Sheet metal fabrication (laser cutting/number punching/bending/welding/riveting, etc.) |
|---|---|
| Material | Stainless steel_SUS304 (304 stainless steel) |
| Accuracy | ±0.2 mm (common reference; it is recommended to provide 2D tolerance marking for key hole distance/assembly position) |
| Minimum wall thickness | 1.0mm (recommended; depends on structure, bending and appearance requirements) |
| Service temperature | 300–600℃ (engineering reference; actual related to usage conditions/surface condition) |
| Tensile strength | 450–1100MPa (range reference; related to status/standard/heat treatment) |
| Density | 7.7–8.5 g/cm³ |
| Bending recommendations (DFM) | It is recommended to mark the bending angle and benchmark in the drawings, and provide an expansion diagram if necessary; it is recommended to reserve a safe distance for holes/slots close to the bending line, and to set reasonable fillets and bending relief grooves for the inner corners to reduce the risk of cracking and deformation. |
| Hole and Margin Recommendations (DFM) | It is recommended to provide 2D markings (aperture, tolerance, datum) for assembly holes/positioning holes; holes that are too close to the edge/holes to the bend line will lead to an increased risk of deformation or cracking. We can do a DFM before quoting and give manufacturability suggestions. |
| Finishing | Brushing, polishing, electrolytic polishing, passivation, laser engraving |
| Typical lead time | Related to plate thickness, structural complexity, process (bending/welding/surface finishing) and quantity; clear delivery and expedited options will be given after uploading the file |
Finishing
Polishing (increases shine and feel)
Suitable for cosmetic parts that require gloss and touch. It is recommended to provide the target effect (matte/glossy/mirror tendency) or reference sample/reference picture.
Electropolishing (more uniform gloss and cleanliness)
Suitable for parts that are more sensitive to surface cleanliness, detail consistency and corrosion resistance; it can be combined with appearance surface definition and functional condition evaluation.
Passivation (improving corrosion resistance stability)
Suitable for wet, lightly corrosive environments or parts requiring long-term corrosion resistance. If there are media/salt spray and other requirements, please note the usage environment and standards.
Laser engraving (logo, serial number and scale)
Suitable for logo, serial number, QR code, scale and other information. It is recommended to provide the vector file and position and size description, and make it clear whether it is an appearance surface.
Why choose stainless steel_SUS304 (sheet metal fabrication)
Corrosion resistance and peace of mind
Suitable for use in common environments such as chassis, shells, brackets and panels; more reliable for humid and lightly corrosive environments.
Controllable appearance and texture
Supports various surface solutions such as brushing/polishing/electrolytic polishing/passivation, etc., suitable for projects that require appearance consistency.
Sheet metal manufacturing is highly efficient
Suitable for rapid trial production and small batch delivery of bent parts and box structures; cost and lead time can be optimized through DFM.
Adapt to various structural forms
Common structures such as panels, guards, brackets, chassis, and mounting plates are all suitable; secondary processes can be used to achieve complete delivery according to assembly requirements.
Recommended Applications
- Chassis cabinet/panel enclosure: Requires stable appearance and corrosion resistance
- Bracket/shield/mounting plate: Structural component prototypes and small batch delivery
- Controllable appearance: It is hoped that the drawing direction, gloss and logo can be implemented according to standards
- Rapid trial production: Laser cutting + bending route, fast delivery pace and iterability
Not recommended for direct use (recommended to evaluate alternatives)
- More extreme corrosion resistance: Long-term strong corrosive medium environment can evaluate SUS316/higher corrosion resistance system
- Strength/wear resistance priority: High wear or higher strength requirements can evaluate higher strength steel grades or structural optimization
- weight sensitive: Strong lightweight demand can evaluate aluminum alloy sheet metal (such as 5052, etc.)
- Super high appearance mirror: It is recommended to define standards in advance and evaluate electropolishing/polishing routes and costs
Design and DFM Guidelines
- Appearance surface definition and drawing direction: Please mark the appearance surface and drawing direction (texture consistency requirements), which can significantly reduce the risk of rework and color/texture inconsistency.
- Bending accessibility: Short flanges, deep boxes and folded structures are prone to interference; it is recommended to provide bending angles and benchmarks, and provide expansion diagrams for verification if necessary.
- Hole to edge/hole to bend line distance: Holes that are too close will cause deformation, cracking or appearance indentation; it is recommended to leave sufficient margins for key holes and confirm them with DFM in advance.
- Internal corners and risk of cracking: It is recommended that the internal corners be reasonably rounded, and if necessary, add bending relief grooves/avoidance grooves to reduce bending cracking and stress concentration.
- Welding and deformation: If welding is included, it is recommended to state the weld appearance requirements and key assembly benchmarks in advance; we can evaluate fixtures and processes to control deformation.