Complex brackets and integrated structures
Define the required fit, finish and working environment. Include the intended test or acceptance criteria with your model.
AIHFABS MATERIAL GUIDE
Stainless Steel 18Ni300 3D Printing
SLM 3D Printing
The printed part of 18Ni300 maraging steel has high tensile strength, excellent toughness, and good machinability, making it ideal for applications such as landing gears, rocket motor cases, shafts, bearings, load cells, and injection molds.
START WITH THE APPLICATION
Where this material family fits
Use the application to shortlist a grade, then confirm the exact requirements against the part design and operating conditions.
Flow components and internal channels
Define the required fit, finish and working environment. Include the intended test or acceptance criteria with your model.
Prototype metal parts and specialist tooling
Define the required fit, finish and working environment. Include the intended test or acceptance criteria with your model.
DESIGN & MANUFACTURING
What to review before selecting a grade
- State the exact alloy and required material condition. A printed alloy and a wrought stock grade should not be substituted on name alone.
- Mark bearing seats, threads, sealing faces and other interfaces that require machining after printing.
- Plan support and powder removal access. Agree on inspection and documentation before releasing a critical application.
CATALOG MATERIAL DETAILS
Stainless Steel 18Ni300: process and finishing
- Manufacturing process
- SLM
- Catalog dimensional reference
- ± 0.3%
- Grade / variant
- SLM 3D Printing
Catalog characteristics
- function
- visual
- durable
- heat-resistant
- impact-resistant
Finishing options to review
- Spray Painting
- Electrocoating
- Electroplating
- Frosting
- Bead Blasting
- Polishing
- Powder Coating
- Sandblasting
- Screen Printing
- Tumbling
- Tapping
- Threading
These catalog details help you compare options. Confirm the exact material condition, feature tolerances and compatible finishing operations for your part before placing an order.
COMPARE THE AVAILABLE GRADES
Related materials in this family
SLM
Aluminum Alloy AlSi10Mg
The printed part of Aluminum AlSi10Mg has a high strength-to-weight ratio and good thermal properties and is ideal for aerospace, automotive, and industrial applications such as turbine blades, engine blocks, enclosures, and jigs/fixtures.
View material details →
SLM
Aluminum Alloy 6061
The printed part of Aluminum 6061 has excellent weldability, corrosion resistance and balanced mechanical properties and is ideal for structural components, automotive parts, marine hardware, and aerospace applications requiring lightweight durability.
View material details →
SLM
Stainless Steel 316L
The printed part of 316L Stainless Steel has exceptional corrosion resistance, biocompatibility and mechanical strength and is ideal for medical implants, marine hardware, chemical processing equipment, and food-grade applications.
View material details →MATERIAL QUESTIONS
Frequently asked questions
What should I include when quoting Stainless Steel 18Ni300?
Send the current CAD, quantity and intended use. Add a drawing for critical fits, the required material condition and any finish or inspection requirements. Confirm availability and the delivered specification in the quotation.
Can I use catalog properties as acceptance criteria?
Use the catalog to shortlist a material. Ask for the exact grade data and agreed test conditions before specifying acceptance limits. Geometry, processing and finishing may affect the delivered part.
Are printed metal parts ready for assembly straight from the machine?
Some applications need secondary machining, heat treatment or surface finishing. Define the delivered condition and critical interfaces in the quotation.
Can I replace a CNC part with a printed version?
Review material equivalence, load paths, surface condition and inspection requirements first. A matching shape alone does not establish equivalent performance.
FROM THE AIHFABS BLOG
Recommended reading for material selection
Metal 3D Printing: From SLM Technology to High-Strength Parts
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Read article →SLA vs Other Manufacturing Processes: How to Choose
Compare SLA with DLP, LCD, FDM, SLS, MJF, SLM, and CNC machining. Shortlist processes by material, geometry, finish, cost, and your part's intended use.
Read article →Compare other material families
Choose a material around your part
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