CNC Machining Steel Parts
Steel is one of the most widely used materials in metalworking. With its high strength, excellent machinability, and outstanding cost-performance ratio, steel is extensively applied across various industries, particularly in fields like component manufacturing. CNC steel machining refers to the processing of steel parts using CNC technology. As a professional CNC machining manufacturer, JUNYU is committed to providing high-quality CNC steel parts machining services to our customers.
With decades of experience in precision CNC steel parts machining, our engineers and technical team can quickly optimize product design, prototyping, material selection, and steel production processes according to customer requirements.
Leveraging advanced equipment and manufacturing technology, we offer custom CNC steel part machining services, suitable for both complex and simple geometries. Our CNC machining capabilities include milling, turning, drilling, wire cutting, electrical discharge machining, grinding, and more, along with additional surface treatment services. Whether your needs involve high precision, repeatability, or strict tolerance requirements, our steel parts machining services will perfectly meet your needs.
Steel SKD11
SKD11 is a high-carbon, high-chromium alloy tool steel that belongs to the cold work die steel category. It is widely used for making precision dies and tools due to its excellent wear resistance, toughness, and hardenability. SKD11 is equivalent to D2 (AISI), X153CrMoV12 (DIN), and 1.2379 (Werkstoff) in other international standards.
| Tensile Strength, Yield (MPa) | Shear Modulus (GPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
| Approx.1900 (Tensile Strength) Approx. 1500 (Yield Strength) | Approx. 210-215 | Approx. 10-12 | Annealed: ≤255 HB Quenched & Tempered: ≥60 HRC (Approx. 580-620 HB when converted to Brinell) | 7.85 |
Steel SKH51
SKH51 is a high-speed tool steel that belongs to the M2 grade in the AISI standard. It is widely used in cutting tools due to its excellent wear resistance, high hardness, and good toughness. SKH51 retains its hardness even at elevated temperatures, making it ideal for high-speed
| Tensile Strength, Yield (MPa) | Shear Modulus (GPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
| Approx.2300 (Tensile Strength) Approx.1800 (Yield Strength) | Approx. 210-220 | Approx. 8-10 | Annealed: ≤255 HB Quenched & Tempered: ≥63 HRC (Approx. 620-650 HB when converted to Brinell) | 8.0 |
Steel DC53
DC53 is a high-performance cold work tool steel that is an improved version of SKD11 (D2). It offers superior toughness, wear resistance, and machinability, making it ideal for precision dies, cutting tools, and high-stress mold components. DC53 overcomes the weaknesses of SKD11, such as brittleness and chipping, by modifying its alloy composition and heat treatment properties.
| Tensile Strength, Yield (MPa) | Shear Modulus (GPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
| Approx. 2400 (Tensile Strength)Approx. 2100 (Yield Strength) | Approx. 210-215 | Approx. 12-15 | Annealed: ≤255 HB Quenched & Tempered: ≥62 HRC (Approx. 600-630 HB when converted to Brinell) | 7.85 |
Steel SKS3
SKS3 is a cold work tool steel known for its high toughness, good wear resistance, and excellent machinability. It belongs to the same category as AISI O1 (Oil-Hardening Steel) and DIN 1.2510, making it a widely used material for cutting tools, punches, dies, and knives.
| Tensile Strength, Yield (MPa) | Shear Modulus (GPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
| Approx.780-1100 (Tensile Strength)Approx.600-850 (Yield Strength) | Approx. 190-210 | Approx. 10-20 | Annealed: ≤229 HB Quenched & Tempered: ≥55 HRC (Approx. 530-580 HB when converted to Brinell) | 7.7-7.8 |
Steel S136
S136 is a high-purity stainless tool steel developed for plastic mold applications requiring excellent corrosion resistance, polishability, and wear resistance. It is widely used in the medical, optical, and food packaging industries, where high surface quality and durability are critical.
| Tensile Strength, Yield (MPa) | Shear Modulus (GPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
| Approx.1350 (Tensile Strength) Approx. 1100(Yield Strength) | Approx. 210 | Approx. 12-15 | Annealed: ≤215 HB Quenched & Tempered: ≥50 HRC (Approx. 480-520 HB when converted to Brinell) | 7.8 |
Steel Stavax
STAVAX is a premium-grade stainless tool steel developed by Böhler-Uddeholm, widely recognized for its exceptional corrosion resistance, polishability, and wear resistance. It is a modified version of AISI 420 tool steel, designed specifically for plastic injection molds and other applications requiring a high-gloss surface finish.
| Tensile Strength, Yield Strength (MPa) | Shear Modulus (GPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
| Approx.1400 (Tensile Strength) Approx. 1200 (Yield Strength) | Approx. 210 | Approx. 12-15 | Annealed: ≤215 HB Precipitation Hardened: 50-52 HRC (Approx. 480-520 HB when converted to Brinell) | 7.78 |
Why Choose JUNYU’s CNC Machining Services for Steel Parts?
We offer CNC machining services for various types of steel.
With quality certifications and years of experience providing CNC steel product machining for global clients, along with advanced and sufficient CNC machines and other production equipment, we can quickly respond to customer needs and ensure the quality of every order.
Thanks to our superior location and well-established logistics system, we are able to provide faster delivery services.
With over 15 years of CNC machining experience across different industries and markets, we are flexible and capable of meeting the diverse needs of our clients.
Finishes and Post-Processing Options for CNC Machined Steel Parts
We offer a variety of surface finishing options for CNC steel:
Nickel Plating — A layer of nickel is evenly plated onto the surface of carbon steel to improve its corrosion and wear resistance. This process adds a 0.005 mm thick layer of nickel to the part’s surface.
Black Oxide Treatment — A black oxide layer is formed on the surface of the steel, primarily enhancing the appearance of the workpiece and providing some rust resistance. This process is widely used for mechanical parts, tools, and more.
Carburizing — The performance of steel parts can be significantly improved through carburizing. This process injects additional carbon into the surface of the steel parts during machining, increasing their hardness and wear resistance.
Try JUNYU’s CNC Machining Service for Steel Parts in a Few Simple Steps.
Upload your CAD files
Send us your FDF file drawings and CAD or 3D files.
Receive your price
You will receive the quote within a few hours.
Order your parts online
You confirm the order and make the payment through the secure payment platform.
Receive your parts
In a short period of time, the parts you ordered will be delivered directly to your shipping address. You can track your package anytime through your personal account.
