In traditional machining, a skilled machinist manually operates a machine to remove or shape
metal based on specifications provided by designers and engineers, typically conveyed through
an engineering drawing or blueprint.
This process involves the use of turn wheels, dials, switches, chucks, vices, and various cutting
tools made of materials such as hardened steel, carbide, and industrial diamond.
Measurement instruments are then utilized to ensure the accuracy of all dimensions.
In contrast to this manual approach, CNC machining performs the same metal cutting, drilling,
milling, boring, grinding, and other metal forming and removal functions, but it relies on computer
numerical control instead of manual operation by a machinist.
It is automated, driven by code, and developed by programmers, offering precision consistently
from the first cut to the 500th. While traditional machining still has a place, CNC machining,
prevalent in digital manufacturing and low-volume production, allows for easy revisions and
alterations for modifications and different materials.
Product Details
Stainless steel is highly resistant to corrosion and rust, making it suitable for situations
where a part may be exposed to the elements for a long period of time.
Stainless steel is also fairly malleable and ductile.
Common Stainless Steel Materials | |
No. | Properties |
Stainless steel 304/304L | The most common alloy and is known for its pristine surface finish. It has significantly higher corrosion and oxidation resistance. Typically used in the manufacture of sensor parts, shafts, machinery parts, medical parts, and more. |
Stainless steel 316/316L | It is slightly higher levels of chromium and nickel that exhibits improved heat tolerance, resistance to creep and pitting, and excellent tensile strength. Typically used in the manufacture of sensor, chemical & pharmaceutical equipment parts, and more. |
Stainless steel 303 | It is a non-magnetic, austenitic stainless steel with good resistance to mildly corrosive atmospheres, but significantly less than 304. Typically used in the manufacture of screw, gears, fittings, bushings, shaft, and more. |
Stainless steel 420 | It is a martensitic stainless steel with good corrosion resistance as well as strength and hardness. It is capable of being heat treated to a hardness of HRC 51 minimum. Typically used in the manufacture of pivots, cams, pump shafts, surgical instrument parts, valve components, and more. |
Stainless steel 440C | It is a martensitic stainless steel, and is the highest carbon content from 400 stainless steel series. It is usually heat treated to reach hardness of 58 - 60 HRC. Typically used in the manufacture of valve seats, piston, shaft, and more. |
Stainless steel 430 | It is a non-hardenable ferritic stainless steel with excellent finish quality. It has good corrosion resistance with good formability and ductility. Typically used in the manufacture of fittings, flanges fasteners, piston, and more. |
Stainless steel 430FR | It is a free-machining solenoid quality alloy, ideal for parts that require corrosion resistance and high electrical resistivity. It has excellent corrosion resistance in fresh water, gaseous, moderately acidic, and low chlorine environments. |
Stainless steel 630 | It is commonly referred to as 17-4 and is a precipitation-hardening martensitic stainless steel that offers superior corrosion resistance. It is magnetic, readily welded. Typically used in the manufacture of sensor housing, valve, pump shaft, and more. |
Stainless Steel Finishing and Post-Processing
We specialize in the production of custom-made products and offer surface treatment services
tailored to meet our customers' specific requirements and industry standards.
Our comprehensive solutions are both efficient and cost-effective, making us a one-stop
destination with the capacity and capability to provide integrated services.
Name | Can be Applied with |
Electropolishing | — |
Electroless nickel plating | Media Blasting, Tumbling |
Media Blasting | All post processes except Electropolish and Powdercoat |
Nickel Plating | Media Blasting, Tumbling |
Passivation | Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting |
Tumbling | All post processes except Electropolish and Powdercoat |
Zinc Plating | Media Blasting, Tumbling, Passivation |
Powder coating | — |
Black oxide | Media Blasting, Tumbling, Passivation |
Applications of Stainless Steel Parts
Parts and products produced through CNC machining find application in many industries, including,
but not limited to, the following:
Industrial, Transportation & Vehicle, Medical, Consumer
Company Profile
FAQ's
1. What are the minimum and maximum dimensions you can machine?
Our comprehensive CNC machining services cover milling (3-axis, 3+2-axis, and 5-axis) and
turning processes. In 3/3+2-axis CNC milling, we can achieve part dimensions up to
2000 x 1500 x 200 mm (78.7 x 59.0 x 7.8 in.).
For 5-axis milling, the maximum part size is 650 x 650 x 300 mm (25.5 x 25.5 x 11.8 in.).
CNC turning accommodates a maximum diameter of 431 mm (17 in.) and a length of 990 mm
(39 in.). Smaller parts are recommended to have dimensions around 10 x 10 x 10 mm
(0.39 x 0.39 x 0.39 in.), with a minimum feature size of 0.5 mm.
It's important to be aware that our platform imposes a maximum part size of 1000 mm (39 in.),
and for larger requirements, we encourage you to contact our sales team for tailored support.
2. What cosmetic standards do you guarantee?
Upholding stringent quality standards, our CNC machined parts undergo standard deburring and
edge-breaking procedures. Clear indications in technical drawings are required for any critical
edges that should be left sharp.
Surfaces are guaranteed to be defect-free, ensuring the absence of scratches, dents, stains,
blemishes, hanging marks, and minor imperfections. Critical surfaces (primary (a) side, as
outlined in technical drawings) will be meticulously free from mill steps and other marks.
On the secondary (b) side, minor hanging marks and up to 2 minor defects are considered
within acceptable limits. Additionally, a range of post-processing and finishing methods can
be applied to enhance surface roughness, visual aesthetics, and wear resistance for CNC
machined parts.
3. How much does CNC machining cost?
The cost of CNC machining is determined by factors such as complexity, quantity, and lead time.
To obtain a precise cost estimate, we encourage you to submit a 3D CAD model, enabling us to
provide an interactive quote accompanied by design for manufacturability (DFM) feedback.
Our use of proprietary software and automated fixturing processes eliminates upfront
non-recurring engineering (NRE) costs, making CNC machining a cost-effective choice for
quantities as low as 1 to 200 parts. While prices may be comparable or slightly higher than
3D printing, CNC machining delivers superior material properties and surface finishes.