Stainless Steel CNC Machining Service
Superior-quality stainless steel machining with precision, strength, and versatility for various industries. Cutting-edge facilities and experienced team delivering custom stainless steel parts that perform reliably in the most demanding environments.
Stainless Steel in CNC Machining
Stainless steel is a family of steel alloys containing chromium, which provides a protective oxide layer and gives the material its excellent resistance to corrosion and oxidation. It is widely used in CNC machining for components that require strength, durability, hygiene, and resistance to moisture or chemicals.
Different stainless steel grades provide different combinations of corrosion resistance, strength, hardness, machinability, and temperature performance. Austenitic grades such as 304 and 316 are widely used for general-purpose and corrosion-resistant applications, while 17-4 PH provides higher strength and hardness after heat treatment.
Stainless steel can be CNC machined into complex and precise components for industries including medical, food processing, aerospace, automotive, marine, chemical processing, and industrial equipment.
Available Stainless Steel at Elite Mold Tech:
| Alliages disponibles | Stainless Steel 304, 316, 17-4 PH |
| Prix | $ |
| Délai de livraison | Moins de 10 jours |
| Épaisseur de la paroi | 0,75 mm |
| Tolérances | ±0,125 mm (±0,005 pouce) |
| Taille maximale des pièces | 200 x 80 x 100 cm |
Acier inoxydable 304
Stainless Steel 304 is one of the most widely used stainless steel grades for CNC machining. It provides excellent corrosion resistance, good strength, and good formability, making it suitable for general industrial, food processing, medical, and consumer applications.<
Limite d'élasticité (MPa)
215
Résistance à la fatigue (MPa)
240
Allongement à la rupture (%)
40
Dureté (Brinell)
123
Densité (g/cm³)
8.00
Stainless Steel 316
Stainless Steel 316 provides improved corrosion resistance compared with 304, particularly in chloride-rich and marine environments. Its molybdenum content improves resistance to pitting and crevice corrosion, making it suitable for chemical, marine, medical, and food-processing applications.
Limite d'élasticité (MPa)
205
Résistance à la fatigue (MPa)
240
Allongement à la rupture (%)
40
Dureté (Brinell)
149
Densité (g/cm³)
8.00
Acier inoxydable 17-4 PH
17-4 PH is a precipitation-hardening stainless steel that provides high strength, hardness, and good corrosion resistance. It can be heat treated to achieve different mechanical properties and is commonly used for demanding aerospace, industrial, and mechanical components.
Limite d'élasticité (MPa)
1000
Résistance à la fatigue (MPa)
510
Allongement à la rupture (%)
10
Dureté (Brinell)
293
Densité (g/cm³)
7.75
Tolérances générales d'usinage CNC
| Description | Tolérance générale ou norme |
|---|---|
| Tolérances dimensionnelles générales | ±0.005″ (±0.127 mm) for metals; ±0.010″ (±0.254 mm) for plastics in line with ISO 2768-mK unless otherwise specified |
| Tolérances serrées | Down to ±0.001″ (±0.025 mm) available upon request, with detailed 2D drawings and GD&T specifications |
| Taille minimale de l'objet | ~0.020″ (0.50 mm), depends on part geometry, tool diameter, and material |
| Tolérance sur le diamètre du trou | ±0.002″ (±0.05 mm) typical; tighter tolerances with boring or reaming |
| Planéité/parallélisme | ≤0.002″ per 6″ (≤0.05 mm per 150 mm), varies by material and fixture setup |
| Tolérances de filetage | Filets métriques et impériaux standard selon ISO/ASME ; filets personnalisés ou fins disponibles sur demande |
| Tolérance angulaire | ±0,5° typique |
| État des bords | Les arêtes vives sont cassées et ébarbées par défaut, sauf indication contraire. |
| Finition de la surface (standard) | Ra 3,2 μm (125 μin) tel qu'usiné ; des finitions améliorées sont disponibles par polissage, microbillage, anodisation, etc. |
| Taille maximale des pièces | Milling: Up to 80″ × 48″ × 24″ (2,032 × 1,219 × 610 mm) Turning: Up to 62″ length × 32″ diameter (1,575 × 813 mm) |
Pièces d'usinage CNC sur mesure fabriquées par Elite Mold Tech
Découvrez les pièces d'usinage CNC fabriquées par Elite Mold Tech, qui fournit des composants de haute précision avec des finitions supérieures et des tolérances serrées pour un large éventail d'industries. Nos services d'usinage CNC garantissent une production fiable, précise et efficace de pièces personnalisées, idéales pour le prototypage et la fabrication à grande échelle.
Advantages and Limitations of Stainless Steel CNC Machining
Stainless steel provides an excellent combination of corrosion resistance, strength, durability, and appearance, making it suitable for demanding CNC applications. However, its hardness and work-hardening behavior can make machining more challenging than softer materials.
Avantages
- Excellent Corrosion Resistance: Stainless steel can withstand moisture, chemicals, and many corrosive environments without rapidly degrading.
- High Strength: Many stainless steel grades provide strong mechanical performance for demanding components.
- Excellent Durability: Stainless steel offers good resistance to wear, impact, and mechanical stress.
- Hygienic Surface: Its smooth and corrosion-resistant surface makes it suitable for food processing, medical, and pharmaceutical applications.
- High Temperature Performance: Several stainless steel grades can maintain useful mechanical properties at elevated temperatures.
Limites
- More Difficult to Machine: Stainless steel can generate higher cutting forces and may work harden during machining.
- Higher Tool Wear: Improper cutting conditions can accelerate tool wear, particularly with harder stainless steel grades.
- Higher Material Cost: Stainless steel generally costs more than mild steel and some aluminum alloys.
- Heat Management: Stainless steel can retain heat near the cutting zone, requiring suitable cutting parameters and coolant strategies.
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Stainless steel CNC Machining FAQs
What are the challenges of machining stainless steel?
Machining stainless steel can be challenging due to its tendency to work harden, leading to increased tool wear. Its low thermal conductivity causes excessive heating during machining, affecting both the material and tools. Improper tools or speeds can damage the material, making the process slow and arduous. Moreover, high-performance cutting tools for stainless steel are more expensive than those for softer materials, with frequent tool changes increasing production costs and downtime.
What grade of stainless steel is best for machining?
416 stainless steel is the most machinable of the stainless steels. In general, machining 400 series stainless steel grades is relatively straightforward. Conversely, machining 300 series stainless steel grades poses more challenges. SUS303 is often considered the best for machining among the 300 series while SUS304 provides a good balance between corrosion resistance and machinability, making it a versatile choice for many applications.
Why is stainless steel low maintenance?
Stainless steel’s inherent corrosion resistance and durability reduce the need for frequent maintenance, providing long-lasting performance in various applications. It also resists bacterial growth and is easy to clean and sterilize, making it low maintenance. It can be effectively cleaned with a swab and an all-purpose cleaner, making it ideal for use in kitchens and hospitals.