Tool Steel 1.2709 is commonly used in scenarios requiring high strength and good heat treatment performance, suitable for jigs, mold inserts, and high-strength structural 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 (Mold Steel 1.2709) |
|---|---|
| Material type | Metal | Mold Steel (SLM) |
| Layer thickness | 30–50 μm (commonly used; subject to equipment and parameter set) |
| Dimensional tolerance | ±0.2 mm (common reference; it is recommended that key dimensions be combined with 2D marking/tolerance requirements) |
| Minimum wall thickness | ≥1.0 mm (recommended); affected by the structural shape and forming direction, it is recommended to reinforce or optimize the support strategy for thin-walled/long cantilevers |
| Minimum aperture/channel | It is recommended that the forming hole/channel be ≥2.0–3.0 mm; the internal flow path must consider the powder cleaning path and necessary powder cleaning holes. |
| Text/texture | Raised character height ≥0.4–0.6 mm; concave character depth ≥0.3–0.5 mm; line width ≥0.35–0.50 mm |
| Tensile strength | 1000–1400 MPa (reference range; related to heat treatment status) |
| Service temperature | 400℃ (reference) |
| Density | About 8 g/cm³ |
| Surface roughness | SLM surfaces are often rough; critical surface appearance and fit can be improved through sandblasting and subsequent finishing |
| Recommended use | Jig fixtures, mold inserts, high-strength structural parts; suitable for complex cooling channels and integrated structures |
| Assembly and processing | Common practice: Leave machining allowance for key hole positions/mating surfaces; it is recommended to go ahead when threaded connections are required. Tapping(Indicate thread specifications and quantity). |
| Finishing | Sand blasting and tapping |
| Typical lead time | Relevant to size, quantity, structural complexity, whether it contains internal flow channels and subsequent processing; clear delivery and expedited options will be given after uploading the file |
Used to improve the surface texture and consistency of metal prints and reduce the "graininess" of powder sintering textures; the sandblasting intensity and masking of key surfaces can be selected according to appearance requirements.
Used for threaded assembly and positioning connections; please write down the thread specifications (such as M3/M4/M6), quantity and hole location requirements in the remarks. It is recommended to provide 2D markings for key holes.
More suitable for jigs, mold inserts and load-bearing structural parts; taking into account strength and subsequent processing space, the engineering application direction is clear.
SLM can realize internal flow channels and conformal cooling structures that are difficult to process traditionally, shortening the development cycle and increasing design freedom.
The hardness, assembly accuracy and surface quality of key surfaces can be improved through subsequent heat treatment and finishing, making it suitable for projects with high coordination requirements.
Through "definition of critical surfaces + tolerance/datum marking + clarification of tapping requirements", it is easier to lock in risks and delivery standards in advance during the quote stage.
1.2709 Tool Steel (SLM) is mainly used for jigs, mold inserts and high-strength structural parts. Its advantages are concentrated in:
If the structure is simple and cost is a priority, it is usually recommended to evaluate the CNC machining route simultaneously.
Whether heat treatment is required depends on your goals: the higher the requirements for strength, hardness, dimensional stability and assembly accuracy, the more recommended it is to include the heat treatment path in the evaluation.
When placing an order, it is recommended to note "purpose + whether heat treatment is required/specified status", and we will give more suitable manufacturing and processing suggestions accordingly.
Please refer to the common engineering scope on this page: the accuracy is about ±0.2 mm, and the minimum wall thickness is recommended to be ≥1.0 mm. It is recommended to ensure the critical dimensions through "2D marking + subsequent processing".
It is recommended that the internal flow channel structure be considered "can be cleaned, inspected, and blocked (if necessary)" during the design stage. Common points to note:
You only need to write down "flow channel usage/medium/whether sealing surface is required" in the remarks, and we will give manufacturability suggestions during the evaluation stage.
In addition to volume, SLM metal printing quote will also be affected by the following factors:
If you want to get an accurate quote faster, it is recommended to note: usage, quantity, lead time, critical dimensions/tolerances, whether it contains internal flow channels, whether tapping is required, and critical surface requirements.
This material is post-processed to Sand blasting and tapping shall prevail.
If you have requirements for mirror surface, ultra-low roughness or critical surface matching, additional finishing strategies are usually required; it is recommended to state the target appearance and critical surface definition in advance in the remarks.
For assembly reliability and consistency, it is more recommended to go Tapping:
"Direct thread printing" is not stable enough for scenes with small threads and high assembly requirements, and is generally not recommended as the first choice.
Common risk points for metal SLM usually come from “thin-wall + large plane + thin-thickness mutation + long cantilever”. Tips to reduce risk:
If you provide 2D annotations and usage descriptions, we can provide more targeted DFM recommendations simultaneously during the evaluation phase.
We support mainstream 3D/2D project files:
The combination that is more conducive to quick and accurate quotes is: STEP + 2D annotation(Especially projects with tolerances and assembly datums).
In order to get a faster and more accurate quote, it is recommended that you provide/explain when uploading the file:
You only need three steps: Upload drawings → Confirm project evaluation and quote → Production and delivery after confirmation.
