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From prototypes to full-scale production, we’ve got you covered.
We machine all common stainless steel grades, each selected for optimal performance in your specific application requirements.
The most versatile and widely used stainless steel grade. Excellent corrosion-resistant and formability.
Superior corrosion resistance, especially against chlorides and marine environments.
Enhanced machinability through sulfur addition. Ideal for high-volume precision components.
Achieves exceptional strength through heat treatment while maintaining good corrosion resistance.
Heat-treatable grade with moderate corrosion resistance. Excellent for strength and wear.
Exceptional strength and corrosion resistance. Ideal for oil & gas and chemical applications.
Visit our gallery to view samples of custom-made stainless-steel parts. Every item is a blend of master craftsmanship and top-class finishes, making it ideal for a variety of industrial and commercial applications.
| Material Grade | Tensile Strength | Hardness | Corrosion Resistance | Machinability | Best Applications |
|---|---|---|---|---|---|
|
304 Stainless Steel
Austenitic (18-8)
|
73,200 psi 505 MPa |
201 HB 92 HRB |
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316/316L Stainless
Marine Grade Austenitic
|
79,800 psi 550 MPa |
217 HB 95 HRB |
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303 Stainless Steel
Free-Machining Austenitic
|
90,000 psi 620 MPa |
228 HB 96 HRB |
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17-4 PH Stainless
Precipitation Hardening
|
190,000 psi 1310 MPa |
388 HB 40 HRC |
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410 Stainless Steel
Martensitic
|
180,000 psi 1240 MPa |
415 HB 43 HRC |
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Duplex 2205
Austenitic-Ferritic
|
116,000 psi 800 MPa |
293 HB 31 HRC |
State-of-the-art technology and skilled personnel for intricate stainless steel parts.
Highly complex geometries and undercuts can be done in one go. It diminishes lead time and boosts precision for detailed stainless steel parts.
Components with high precision are turned and then live tooling applied. Swiss type machines are employed for long and slim parts with superb concentricity.
Intricacies and extremely close tolerances in hardened stainless steel. It can be used for tooling and aerospace parts which are complicated.
Passivation, electropolishing, bead blasting, and mirror polish. Full in-house finishing for parts which are ready for production.
Zeiss CMM instruments for size confirmation. First Article Inspection (FAI) reports and complete PPAP documentation.
| Feature Type | Standard | Precision |
|---|---|---|
| Linear Dimensions | ±0.005″ | ±0.0005″ |
| Hole Diameters | ±0.002″ | ±0.0002″ |
| Surface Finish (Ra) | 63 μin | 8 μin |
| Flatness | 0.002″/in | 0.0005″/in |
| Concentricity | 0.002″ TIR | 0.0005″ TIR |
| Thread Class | 2A/2B | 3A/3B |
| Dimension Range | Standard (±) | Precision (±) | Ultra Precision (±) | Classification |
|---|---|---|---|---|
| 0 – 0.5″ (0-12.7mm) | 0.005″ | 0.001″ | 0.0002″ | Most Common |
| 0.5″ – 1.0″ (12.7-25.4mm) | 0.005″ | 0.001″ | 0.0003″ | Standard |
| 1.0″ – 3.0″ (25.4-76.2mm) | 0.005″ | 0.002″ | 0.0005″ | Standard |
| 3.0″ – 6.0″ (76.2-152.4mm) | 0.007″ | 0.003″ | 0.001″ | Standard |
| 6.0″ – 12.0″ (152.4-304.8mm) | 0.010″ | 0.005″ | 0.002″ | DFM Review |
| 12.0″ – 24.0″ (304.8-609.6mm) | 0.015″ | 0.007″ | 0.003″ | DFM Review |
| Hole Diameter | Drilled (±) | Bored (±) | Reamed (±) | H7 Fit (ISO) |
|---|---|---|---|---|
| 0.062″ – 0.125″ (1.5-3.2mm) | 0.003″ | 0.001″ | 0.0004″ | +0.0004″/0″ |
| 0.125″ – 0.250″ (3.2-6.4mm) | 0.003″ | 0.001″ | 0.0005″ | +0.0006″/0″ |
| 0.250″ – 0.500″ (6.4-12.7mm) | 0.004″ | 0.001″ | 0.0005″ | +0.0007″/0″ |
| 0.500″ – 1.000″ (12.7-25.4mm) | 0.005″ | 0.0015″ | 0.001″ | +0.0010″/0″ |
| 1.000″ – 2.000″ (25.4-50.8mm) | 0.007″ | 0.002″ | 0.001″ | +0.0012″/0″ |
| 2.000″ – 4.000″ (50.8-101.6mm) | 0.010″ | 0.002″ | 0.0015″ | +0.0014″/0″ |
| Thread Class | Fit Type | Tolerance Range | Typical Application | Cost Impact |
|---|---|---|---|---|
| 1A/1B | Loose Fit | Widest tolerance, easy assembly | Quick assembly, dirty environments | Base Cost |
| 2A/2B | Standard Fit | General purpose tolerance | Most commercial applications | Base Cost |
| 3A/3B | Close Fit | Tight tolerance, no allowance | Precision assemblies, aerospace | +15-25% |
| Thread Size | 2A Major Ø Tolerance | 2A Pitch Ø Tolerance | 3A Major Ø Tolerance | 3A Pitch Ø Tolerance |
|---|---|---|---|---|
| #4-40 UNC | -0.0015″ | -0.0015″ | -0.0010″ | -0.0010″ |
| #10-32 UNF | -0.0017″ | -0.0014″ | -0.0012″ | -0.0009″ |
| 1/4-20 UNC | -0.0020″ | -0.0016″ | -0.0013″ | -0.0010″ |
| 3/8-16 UNC | -0.0024″ | -0.0018″ | -0.0016″ | -0.0012″ |
| 1/2-13 UNC | -0.0027″ | -0.0020″ | -0.0018″ | -0.0013″ |
Client: Tier 1 aerospace supplier
Client needed 17-4 PH stainless steel manifolds with complex internal passages for a new aircraft platform. Stringent specs included ±0.0005″ positional accuracy and 5000 PSI pressure testing. Previous supplier had a 15% rejection rate.
We utilized 5-axis Mazak Integrex machining and developed a proprietary deep-hole drilling technique with BTA finishing. In-process CMM verification was used after every crucial operation. We also implemented abrasive flow machining for deburring to ensure zero contamination.
“They produced complicated manifolds with the first pass of the FAI, which in a new supplier is seldom to materialize.”
Client: Venture-backed surgical robotics company
Development of FDA-regulated instrument tips requiring 316L stainless steel micromachining (0.3mm features) and electropolished finish. The project involved high frequency design changes during the pilot phase.
Fused Swiss-type turning (Citizen L20) with Kern Micro micro-milling. Established Class 10,000 cleanroom packaging procedures and 100% vision inspection systems. Managed the entire supply chain for electropolishing and traceability.
“Quality documentation and traceability made it easy for us to submit to FDA. When the FDA asked for manufacturing records, we had them!”
Client: Biggest craft brewery equipment manufacturer
Required 304L stainless steel valve patterns with sanitary tri-clamp connections. Strict 3-A Sanitary Standards (0.8 μm finish) and 500+ units annually. Previous supplier failed on delivery during high season.
Developed rapid-changeover fixturing for six valve sizes and an automated deburring cell for consistent finishing. Implemented a Kanban inventory system with safety stock for semi-finished blanks, enabling 72-hour shipping.
“Adopting their Kanban program brought our inventory cost down by 60% while ensuring us a 3-day long delivery.”
Client: International subsea production systems producer
Duplex 2205 housings needed for 3,000m depth and 10,000 PSI pressure. Required NACE MR0175 compliance for sour service and full material traceability for API 6A qualification.
Optimized machining with high-pressure coolant (1,000 PSI) and special carbide inserts for Duplex alloys. Used multi-stage roughing with stress relief cycles. Managed third-party hydrostatic and hardness testing.
“It was a relief to discover they could overcome the strain hardening issue our rejected suppliers had struggled with.”
Client: Early-stage orthopedic startup
Rapid prototyping needed for a spinal fusion cage with lattice-like geometry (0.5mm features) in 316LVM. Required weekly trial-and-error loops and strict biocompatibility constraints for investor presentations.
Built a dedicated prototype cell with universal soft-jaw fixturing to reduce setup time to hours. Provided DfM feedback within 24 hours of design submission. Kept certified 316LVM stock specifically for this program.
“The speed of their prototyping was instrumental for our fundraising timing… They are now our production partners.”
Client: NewSpace LEO satellite manufacturer
Fabrication of propellant feed tubes using high-strength 316L VIM-VAR stainless steel. Critical requirement for leak detection (≤ 10⁻⁹ sccs) and extreme cleanliness (Level 100A) for orbit operation.
Employed gun-drilling and BTA finishing, followed by Abrasive Flow Machining (AFM) to achieve Ra 0.4 μm internal finish. Managed orbital welding and helium leak testing at accredited labs, packaged in cleanroom.
“Their internal surface finishing capability was the key differentiator… When you are launching a $50 million satellite, failure is not an option.”
| Visual | Ra (μm) | Ra (μin) | N Grade | Finish Type | Typical Process |
|---|---|---|---|---|---|
| 0.1 | 4 | N3 | Mirror Polish | Lapping Superfinishing | |
| 0.2 | 8 | N4 | Fine Polish | Fine Grinding Polishing | |
| 0.4 | 16 | N5 | Smooth | Precision Grinding Honing | |
| 0.8 | 32 | N6 | Fine | Fine Milling Grinding | |
| 1.6 | 63 | N7 | Medium (Standard) | Standard CNC Milling Turning | |
| 3.2 | 125 | N8 | As-Machined | Standard Milling Rough Turning | |
| 6.3 | 250 | N9 | Rough | Heavy Milling Sawing | |
| 12.5 | 500 | N10 | Very Rough | Rough Machining Sand Casting |
Machine CNC stainless steel is a computer numerical control (CNC) method that is meant for maximum durability when working with stainless steel and steel alloys. A CNC machine follows the CAD file to machine raw stainless steel materials such as 316, 304, 303, 316L, 304L, 420, or 440 steel blocks. That is superb precision-based milling or turning held under the best circumstance. Normally produced in prototype quantities, these parts can exhibit tight tolerances and highly controlled surface finishes. The material integrity is still maintained, the production of lower-cost parts is possible, and their physical attributes are unimpaired such as ductility, corrosion resistance, strength, wear resistance, and hardness.
There are several CNC machining materials. Some of them are austenitic stainless steels, like 304, 316, and 430, precipitation- hardening alloys like 17-4, and nickel-containing alloys. The choice of material depends on what kind of machinability, weldability, strength, and corrosion resistance are required. For aerospace or medical devices, high-strength or high-temperature alloys might be selected; for food and easy-to-clean applications, the common choices would be 304 or 316.
Advanced machining capabilities — 5-axis machining and high-precision CNC milling, in particular — allow intricate geometries, less tolerance and a lesser number of setups. These capabilities get rid of sharp edges and burrs for better surface quality on high-precision parts and lead to efficient production of custom stainless steel parts, intricate machine parts, and large number of parts for applications from automotive to medical industries.
Well, precision CNC machining services are reasonably available by a proficient machine shop to produce both prototypes and production parts. They accept CAD or technical drawing file uploads, run CNC machining on mills and lathes, and inspect and verify metal and plastic parts to specification and formal specifications for your high-precision, high-strength components.
Tighter tolerances, difficult-to-machine alloys, and low machinability increase cycle time, tool wear, and setup complexity. Material price (e.g., nickel alloys), required surface finish, post-process welding or heat treatment, and inspection levels all affect pricing. Early definition of tolerances and specifications reduces iteration and lowers overall manufacturing costs.
Finishing services include deburring, passivation to improve the corrosion resistance of such surfaces, welding, heat treatment, anodizing for compatible alloys, and precision assembly. Machine shops that offer metal fabrication services often will incorporate CNC machining and sheet-metal work to provide finished machine parts or custom assemblies for installation.
To request a quote, email or upload a CAD model or technical drawing/specification specifying the material of choice, quantity, tolerances, and required finish. Using multiple online CNC machining services, you can upload a CAD file, select from stainless steel alloys (316/304/303), specify machining techniques such as 5-axis machining, and get quotes for both prototypes and mass-produced parts. Precise requirements can improve the rate of quotation and the production phase.
Quality controls include first-article inspection, in-process gauging, CMM (coordinate measuring machine), and documentation compliance with engineering specifications and general industrial requirements (aerospace, medical devices, ITAR, where applicable). Controlling mechanical properties, tensile strength, hardness, and the traceability of material certificates ensures that parts meet performance and regulatory requirements for critical applications.
