3D Printing · SLM

316L Stainless Steel

316L stainless steel is one of the most commonly used stainless steel grades in 3D printing. Thanks to the extremely high temperature gradient and extremely fast solidification rate during the printing process, the material's mechanical properties after molding are better than traditional castings (although some printers also support printing in 17-4 PH stainless steel). 316L is a metal with strong mechanical properties. The printed surface is usually rough and has pitting (melt pool marks). The material can provide a variety of polished or matte post-processing effects and is widely used in jewelry, functional parts, small sculptures and other fields.

Dimensional Stability

Toughness

Rigidity

Heat Resistance

Weather Resistance

unionfab-316l-stainless-steel-cylindrical-connector

Lead Time

5~9 days

Tolerance

± 0.3% (minimum of ± 0.3mm)

Min. Order

1

Reference Unit Price Range

0.30 - 0.66

Advantages

  • Corrosion Resistance
  • Toughness
  • Biocompatibility

Disadvantages

  • Higher weight
  • Lower surface quality

Performance Snapshot

Material Characteristics at a Glance

Relative performance profile across key engineering parameters. Values are contextual — not absolute stress ratings.

Heat Resistance

Excellent

Score de référence : 5/5

Corrosion Resistance

Excellent

Score de référence : 5/5

Dimensional Stability

Excellent

Score de référence : 5/5

Toughness

Excellent

Score de référence : 5/5

Rigidity

Excellent

Score de référence : 5/5

Weather Resistance

Élevé

Score de référence : 4/5

Cost Efficient

Moyen

Score de référence : 3/5

Thermal Conductivity

Moyen

Score de référence : 3/5

ESD Safe

Moyen

Score de référence : 3/5

Surface Finish Options

Surface Finish Options

Available finish options for 316L Stainless Steel.

As Printed
Inclus

As Printed

Color

Silvery-gray

Surface

Ra 15-35 μm (as-built SLM)

Accuracy

± 0.3% (minimum of ± 0.3mm)

unionfab-polishing-surface-look
Disponible

Polishing

Surface result

Smoother, glossier visible surfaces where geometry allows

Best for

Améliorer la douceur et le brillant des pièces en 316L Stainless Steel utilisées pour des pièces métalliques finales, lorsque la géométrie le permet.

Note

Confirmer la rétention des bords et l'impact dimensionnel sur 316L Stainless Steel ; les caractéristiques fines peuvent s'atténuer pendant le polissage.

unionfab-sand-blasting-surface-look
Disponible

Sand Blasting

Surface result

Uniform matte texture

Best for

Créer une texture mate uniforme sur les pièces en 316L Stainless Steel utilisées pour des pièces métalliques finales et des prototypes d'affichage ou fonctionnels.

Note

Confirmer le masquage et la rétention des caractéristiques sur 316L Stainless Steel ; le sabrage abrasif peut modifier la texture et atténuer les détails fins.

unionfab-laser-engraving-surface-look
Disponible

Laser Engraving

Marking result

Permanent text, logo, or identification marking

Best for

Ajouter du texte, des logos ou une identification permanents aux pièces en 316L Stainless Steel utilisées pour des pièces métalliques finales.

Note

Confirmer le contraste, la profondeur de marquage et la sensibilité thermique sur 316L Stainless Steel avant la production.

unionfab-shot-peening-surface-look
Disponible

Shot Peening

Surface effect

Compressive surface treatment for metal parts

Best for

Améliorer l'état de surface des pièces métalliques en 316L Stainless Steel utilisées pour des pièces métalliques finales et des applications portantes.

Note

Confirmer la réponse de l'alliage, la tolérance dimensionnelle et la couverture de surface sur 316L Stainless Steel ; les paramètres du procédé affectent l'état de surface final.

unionfab-heat-treatment-surface-look
Disponible

Heat Treatment

Mechanical result

Adjusted strength, hardness, or stress-relief depending on the alloy

Best for

Ajuster la résistance, la dureté ou l'état de contrainte des pièces en 316L Stainless Steel pour des pièces métalliques finales et des usages fonctionnels exigeants.

Note

Confirmer le cycle spécifique à l'alliage, le changement dimensionnel et les exigences post-traitement pour 316L Stainless Steel avant la production.

Industries & Applications

Where 316L Stainless Steel Delivers

unionfab-industrial-manufacturing

Industrial Manufacturing

  • End-use metal parts
  • Functional prototype testing
  • Assembly testing
  • Mounting brackets
unionfab-equipment

Equipment

  • End-use metal parts
  • Functional prototype testing
  • Assembly testing
  • Energy equipment parts
  • Mounting brackets
unionfab-automotive

Automotive

  • Prototype and fit-check components
  • Interior and non-safety-critical parts
  • Custom fixtures and production aids
  • Low-volume validation builds
unionfab-jewelry

Jewelry

  • Design concept models
  • Pattern and master-model development
  • Display and presentation pieces
  • Low-volume custom accessories
unionfab-fine-jewelry-accessories

Fine Jewelry & Accessories

  • Fine accessory concept models
  • Pattern and master-model development
  • Display and presentation pieces
  • Low-volume custom accessories
unionfab-robotics

Robotics

  • Prototype end-effectors and brackets
  • Custom assembly and test fixtures
  • Low-volume functional validation builds
  • Integration and fit-check components
unionfab-industrial-automation

Industrial Automation

  • End-use metal parts
  • Functional prototype testing
  • Assembly testing
unionfab-shipbuilding

Shipbuilding

  • Prototype marine equipment components
  • Custom fixtures and maintenance aids
  • Low-volume engineering validation builds
  • Functional fit-check parts
unionfab-marine

Marine

  • End-use metal parts
  • Functional prototype testing
  • Assembly testing
  • Marine applications
  • Corrosion-resistant equipment parts

Technical Specifications

Design Guidelines

Material Properties

Density
7.9 g/cm³
Hardness
Rockwell 28
Tensile Strength
600 MPa
Tensile Modulus
180000 MPa
Elongation at Break
≥32%
Flexural Modulus
180000 MPa
Yield Strength
≥400 MPa
HDT @ 0.45 MPa
300-400 °C
HDT @ 1.8 MPa
250-350 °C

Process & Dimensional Specs

Maximum Part Size
300 × 300 × 400 mm
Default Layer Height
0.05 mm
Surface Roughness
Ra 15-35 μm
Dimensional Tolerance
± 0.3% (minimum of ± 0.3mm)

Ready to Order?

Upload your 3D file and receive a quote for 316L Stainless Steel parts. Typical turnaround is 5~9 days from order confirmation.

Every order includes: Dimensional inspection report · NDA-ready file handling · Pre-shipment QC photography · DDP door-to-door logistics · Engineering review on request

Parler à un Ingénieur Procédé

Vous avez des exigences de tolérances serrées ou une géométrie complexe ? Nos ingénieurs étudient votre plan avant l'établissement du devis pour signaler les points d'attention.

Compare & Decide

Related & Alternative Materials

SLM · Metals

17-4PH Stainless Steel

SLM · Silvery-gray

17-4 PH stainless steel is a martensitic precipitation hardening stainless steel. The material is known for its excellent corrosion resistance and extremely high strength and hardness, especially after heat treatment. 17-4 PH can be adjusted to different hardness and toughness levels through heat treatment, allowing users to tailor the properties of the alloy after sintering to suit a wide range of application scenarios, including: mechanical equipment, chemical processing, food processing, pump components, valves, fasteners, jigs and fixtures.

MBJ · Metals

SS316L

MBJ · Gray-Black

In the MBJ process, 316L stainless steel usually appears silver gray to dark gray after sintering due to its excellent corrosion resistance and toughness, making it an ideal choice for preparing fluid parts with complex structures.

MBJ · Metals

SS17-4PH

MBJ · Gray-Black

The strength and hardness of 17-4PH precipitation hardened stainless steel can be significantly improved through heat treatment after sintering. The color of its printed parts is dark gray to black gray in the sintered state. It has good mechanical properties and moderate corrosion resistance, and is suitable for structural parts that require both strength and precision.

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