316L Stainless Steel is a very commonly used choice of corrosion-resistant stainless steel in metal 3D printing, suitable for parts you want to have "sufficient strength + corrosion resistance + usable end parts."
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.
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 | SLM metal 3D printing (stainless steel 316L) |
|---|---|
| Material positioning | Corrosion-resistant metal functional parts/end-use parts; suitable for complex structures, integrated designs and internal flow channel parts |
| Dimensional tolerance (reference) | ±0.2 mm (common range; it is recommended to process the key hole/datum surface twice or note "precision first") |
| Minimum wall thickness (reference) | ≥1.0 mm (Thin-walled/long cantilevers require evaluation of support and deformation control) |
| Temperature resistance (reference) | 400℃ |
| Tensile strength (reference) | 480–650 MPa |
| Density (reference) | 7.9 g/cm³ |
| Mounting holes and threads | It is recommended to perform secondary processing (enlarging/reaming) on the assembly holes/positioning holes to ensure fit; it is recommended to pass the thread Tapping Obtain more stable assembly quality (please indicate M specification, quantity and location). |
| Finishing | Sand blasting and tapping |
| Typical lead time | Related to structural complexity, quantity, support and finishing; clear delivery and expedited options will be given after uploading the file |
Used to improve metal 3D printing surface uniformity, reduce reflection differences, and make the appearance more "industrially consistent". For the exterior surface, please note the sandblasting grade/thickness preference.
Used to obtain more stable thread assembly quality. Please indicate the thread specification (such as M3/M4/M6), hole position reference and quantity in the remarks.
It is more stable in humidity, salt spray and some chemical media environments, and is suitable for metal terminals that require long-term reliability.
Suitable for load-bearing structural parts and functional parts; parts sensitive to assembly accuracy can be further improved through secondary processing.
It is more suitable for internal structures, special-shaped flow channels and reduced parts assembly design that are difficult to machine with traditional CNC, and improves integration.
Supports finishing such as sandblasting and tapping; machining paths for key holes/sealing surfaces can be planned to meet assembly and sealing requirements.
| Material | Key Advantages | Mainly applicable | Not suitable |
|---|---|---|---|
| Aluminum alloy AlSi10Mg (SLM) | Lighter and stronger, suitable for heat dissipation/thermal conduction and complex structure integrated molding | Radiator, lightweight bracket, complex flow channel metal parts | Strong corrosion resistance is preferred (316L is more stable) |
| TC4 Titanium (SLM) | High strength to weight ratio, corrosion resistance, performance priority | High-end structural parts, lightweight end-use parts, and reliability-first parts | Budget sensitive, general corrosion resistance needs (316L is more economical) |
| Die steel 1.2709 (SLM) | High strength and good heat treatment performance, suitable for jigs/molds | Jigs and fixtures, mold inserts, high-strength structural parts | Strong corrosion resistance requirements (316L is more suitable) |
| Nickel-based superalloy (SLM) | Strong high temperature resistance, suitable for high temperature working conditions | High temperature functional parts, thermal environment verification parts | Only corrosion resistance/general strength needs (316L is more balanced) |
| White Nylon (SLS) | Functional plastic parts, wear-resistant and fatigue-resistant, suitable for batch layout of complex structures | Structural validation parts, assembly parts, wear-resistant moving parts | Metal Strength/High Temperature Resistance/Metal Corrosion Resistance Terminals |
Stainless steel 316L (metal 3D printing SLM) is often used in complex structural functional parts and end-use parts. Its advantages are concentrated in:
Simple judgment:
You can refer to the common range (specifically subject to project review and drawing requirements)
If there are critical fit dimensions or sealing requirements, it is recommended to provide 2D markups and plan for secondary processing.
We support mainstream 3D/2D project files:
Metal 3D printing advice: STEP + 2D (key holes/fitting/sealing surfaces) available for faster and more accurate quotes.
In addition to volume and weight, key factors affecting quotes include:
The finishing of this material is: Sand blasting and tapping.
If you have higher appearance goals (such as mirror/electrolysis, etc.), you can state it in the remarks, and we will evaluate and give suggestions on a project-by-project basis.
Yes, but it must be "powder dischargeable and cleanable". Suggestions:
For assembly consistency and strength stability, it is generally recommended to:
Common risks in metal 3D printing come from thermal stress and support:
It is recommended that you write clearly when uploading the file:
You only need three steps: Upload drawings → Confirm project evaluation and quote → Production and delivery after confirmation.
