Suitable for the production of ordinary stainless steel exterior parts, home appliance panels, kitchen equipment housings, decorative panels, equipment housings, hardware, and cost-sensitive stainless steel sheet metal parts.
Stainless steel SUS430 is a sheet metal part material based on 430 ferritic stainless steel plates, produced through laser cutting, CNC punching, bending, stamping, spot welding, grinding, wire drawing, polishing, sandblasting, and other processes. SUS430 has certain corrosion resistance, good oxidation resistance, low material costs, and a stainless steel metal appearance. It is commonly used for home appliance panels, kitchen equipment housings, decorative panels, general equipment housings, hardware parts, and cost-sensitive stainless steel sheet metal parts. Compared to SUS304, SUS430 is less expensive and magnetic, but generally has weaker corrosion resistance, toughness, and weldability.
By focusing on application scenarios, boundaries of advantages, and non-recommended scenarios, it helps sales, customer service, and quoting staff quickly determine whether the material meets current part requirements.
The cost is lower than 304 stainless steel, it has a metallic stainless steel texture, is magnetic, has good oxidation resistance, is suitable for brushing and polishing, is suitable for ordinary sheet metal bending, suitable for interior decoration parts, is more corrosion-resistant than ordinary carbon steel bare sheets, and is suitable for home appliances and standard appearance panels.
Home appliance panels, kitchen equipment housings, general equipment housings, instrument panels, decorative panels, electrical appliance housings, hardware accessories, display racks, ordinary protective covers, brackets, mounting boards, advertising display parts, indoor stainless steel exterior parts, low to medium load sheet metal structural parts, magnetic structure-related shell parts.
Highly corrosive environment parts, seaside high salt spray environment parts, long-term outdoor exposed parts, food strongly corrosive long-term contact parts, medical implant parts, chemical equipment parts, high-end corrosion-resistant equipment parts, strong welded structural parts, high-impact structural parts, high elasticity snap-fit parts, and parts requiring corrosion resistance higher than 304 or 316.
The following parameters come from product information and material knowledge fields, used for design review, quotation communication, and preliminary judgment before material selection.
| Material positioning | Suitable for the production of ordinary stainless steel exterior parts, home appliance panels, kitchen equipment housings, decorative panels, equipment housings, hardware, and cost-sensitive stainless steel sheet metal parts. |
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| Precision performance | SUS430 is suitable for laser cutting, CNC punching, bending, stamping, spot welding, and general sheet metal fabrication. The cutting profile and hole position accuracy are relatively good. The overall bent dimensions are affected by plate thickness, bending radius, material hardness, bend springback, number of bendings, and equipment precision. Compared to SUS304, SUS430 generally has weaker forming toughness, and requires more attention to cracking risk during complex bending, deep tensile, and small-radius bending. |
| Dimensional tolerances | Dimensional tolerances for standard laser cutting can be referenced as ± 0.10mm to ±0.30mm; the overall dimensional tolerance after bending can be referenced as ±0.30mm to ±1.00mm; welded structural parts can be evaluated at ±0.50mm-±2.00mm. Small-sized simple bent parts are usually easier to control, while large, multi-bend, welded, and polished parts may have greater deviations. This value is a general reference range and does not guarantee absolute tolerances for all structures. In practice, it should be confirmed by considering plate thickness, structure, number of bendings, welding method, and surface treatment. |
| Minimum Wall Thickness | SUS430 is usually selected based on board thickness, with common thicknesses including 0.4mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, and so on. Standard decorative panels can use 0.4mm-0.8mm; for ordinary shell parts, the board thickness is recommended not less than 0.8mm-1.0mm; for areas requiring welding, riveting, tapping, bearing assembly forces, or structural support, it is recommended to thicken appropriately. |
| Recommended wall thickness | Standard decorative panels and lightweight shells are recommended 0.8mm-1.2mm; appliance housings, equipment housings, protective covers, brackets, and mounting plates are recommended 1.0mm-2.0mm; positions bearing assembly forces, screw tightening, riveting, or medium loads are recommended 1.5mm-3.0mm, and rigidity is improved through edge folding, flanging, rib pressing, reinforcement ribs, or local thickening. |
| Minimum aperture | For laser cutting or CNC punching, the recommended hole diameter should be no less than one of the plate thickness, and for stable design, the hole diameter should be no less than 1.0mm-1.5mm. Small holes, dense holes, and holes near bending lines are prone to deformation, burrs, or unstable machining. Screw holes, positioning holes, riveting holes, and assembly holes should be reasonably allowable according to board thickness, fastener specifications, surface treatment methods, and processing methods. |
| Assembly clearance | For ordinary sheet metal assembly, it is recommended to reserve 0.20mm-0.50mm on one side; for insertion, flanging, slots, and multi-bend combination structures, it is recommended to appropriately enlarge the clearance according to plate thickness, bending error, and surface treatment requirements. When assembling brushed exterior and mirror-finished parts, avoid excessive tightness to prevent surface scratches. If fingerprint resistance, protective films, spraying, or other surface treatments are needed later, additional consideration should be given to the thickness of the film layer and the space for surface protection. |
| Detailed performance | SUS430 sheet metal is suitable for making holes, grooves, edges, flanges, pressed ribs, counterbos, louver holes, reinforcement ribs, decorative panels, and standard sheet metal markings. Fine text, logos, and markings are recommended to be achieved through laser marking, etching, silkscreen printing, etching coloring, or nameplates. The cutting details on the appearance should not be too fine to avoid burrs, deformation, and weakening of details after polishing and brushing. |
| Surface effect | The original surface of SUS430 is typically silver-gray stainless steel with a metallic texture. Common household metal textures can be achieved through brushing, polishing for a glossy finish, mirror polishing for higher reflectivity, and sandblasting for a matte industrial look. In appearance, SUS430 can resemble SUS304, but when exposed to humid or corrosive environments for extended periods, it is more prone to dark spots, rust spots, or surface discoloration. If you pursue a long-term high-end appearance, it is recommended to prioritize the SUS304 or SUS316. |
Based on material characteristics and suitable product ranges, customer needs are broken down into easier application directions to determine.
Home appliance panels, kitchen equipment housings, general equipment housings, instrument panels, decorative panels, electrical appliance housings, hardware accessories, display racks, ordinary protective covers, brackets, mounting boards, advertising display parts, indoor stainless steel exterior parts, low to medium load sheet metal structural parts, magnetic structure-related shell parts.
Suitable for the production of ordinary stainless steel exterior parts, home appliance panels, kitchen equipment housings, decorative panels, equipment housings, hardware, and cost-sensitive stainless steel sheet metal parts.
SUS430 is a ferritic stainless steel with magnetic properties, and its material cost is generally lower than SUS304 and SUS316. It is suitable for making interior decoration parts, home appliance panels, ordinary shells, and general hardware, with surfaces that can be brushed, polished, sandblasted, and other treatments. SUS430 has better corrosion resistance than ordinary carbon steel but is weaker than SUS304 and SUS316. It is more prone to rust spots, pitting, or surface discoloration in humid conditions, salt spray, acids and alkalis, kitchen grease, and long-term outdoor environments.
Based on wall thickness, hole position, assembly clearance, dimensional tolerances, and material usage risks, determine in advance whether the part structure is suitable forSUS 430 Stainless Steel.
Post-processing ofSUS 430 Stainless Steel affects appearance, dimensions, hole position, assembly clearance, and usage validation results, and should be explained in advance during quotation, DFM review, and sample confirmation stages.
Post-processing should focus on appearance display, dimensional fitting, connection assembly, and testing verification. Parts involving assembly positions need to be reserved in advance for machining, coating, and trial assembly allowances.
For common issues such as threads, snaps, strength, temperature resistance, and weather resistance, identify in advance whether the material needs to be replaced or if another processing method should be used.
When customer demand exceedsSUS 430 Stainless Steel material boundaries, it is necessary to combine strength, temperature resistance, toughness, long-term stability, and mass production goals to promptly recommend alternative materials or processing technologies.
If better corrosion resistance and versatility are needed, SUS304 stainless steel can be chosen; If stronger resistance to salt spray, seaside, or chemical environments is required, SUS316 or SUS316L can be chosen; If lower costs and subsequent powder and painting are needed, SPCC, SECC, or Q235 sheet metal can be chosen; If lightweight is needed, AL5052 aluminum alloy sheet metal can be chosen; If higher strength or load-bearing capacity is required, options such as Q235, Q345, cold-rolled steel reinforced structures, or carbon steel spraying solutions can be chosen.
If customers mainly care about stainless steel appearance, cost control, magnetic needs, and general indoor use, SUS430 is a more suitable choice. If the customer's product needs to be exposed to humidity, moisture, salt spray, acids and alkalis, or outdoor environments for extended periods, it is not recommended to prioritize SUS430; SUS304, SUS316 should be selected, or surface protection solutions should be added. If customers require long-term stability in a high-end appearance, it is also recommended to prioritize SUS304 or SUS316.
After uploading 3D/2D drawings and supplementing materials, quantities, tolerances, surface treatments, and delivery requirements, XPartsLab will provide next steps in 3D printing manufacturability, cost, and delivery pathways.
