Materials
Material Machining Capabilities
Sterling Machining specialises in CNC machining of a wide range of materials — from standard engineering metals to high-performance alloys and technical plastics. Our experience spans stainless steels, carbon and alloy steels, aluminium, exotic alloys, and polymers used in critical applications across aerospace, oil & gas, extrusion tooling, and specialist engineering sectors.
We routinely machine stainless grades such as 304, 316 and 17-4PH for corrosion-resistant parts, as well as EN8 and EN24 steels for high-strength components. For lightweight, high-strength requirements, we offer expert aluminium machining (6061, 7075 and more).
Our niche is in exotic alloys — including Inconel, Monel, Nimonic, Titanium and Super Duplex — where precision, heat control and work-hardening management are essential. We also support applications in PEEK, Acetal and Nylon, delivering tight-tolerance plastic components with excellent surface finish.
All materials can be sourced in-house as part of a full turnkey supply, including heat treatment and surface finishing via trusted partners. Backed by ISO 9001:2015 and over 50 years’ combined machining experience, we ensure quality, traceability and repeatability across every batch.
Need help machining your specified material?
Contact Sterling Machining for a fast, no-obligation quote.
Our Range of Materials
A
Alloy 400
A nickel-copper alloy known for its high strength and excellent corrosion resistance in a range of media including seawater, hydrofluoric acid, and alkalis.
C
CA104 Aluminium Bronze
A high-strength copper alloy with excellent resistance to corrosion, erosion, and cavitation, particularly in marine environments.
C63200
A nickel-aluminium bronze alloy offering high strength, good ductility, and excellent corrosion resistance, especially in seawater and other aggressive media.
D
Duplex / S31803/S32205
A stainless steel with a mixed microstructure of austenite and ferrite, providing high strength and excellent resistance to stress corrosion cracking and pitting.
H
Hastelloy
A group of nickel-based alloys known for their exceptional corrosion resistance in highly aggressive chemical environments and high temperatures.
H13 / 1.2344
A chromium-molybdenum-vanadium hot work tool steel known for its excellent combination of toughness and resistance to thermal fatigue cracking.
I
Inconel 718 / Alloy 718
A nickel-chromium superalloy characterized by excellent high-yield tensile and creep-rupture properties at temperatures up to 1300°F (704°C).
Inconel 725 / Alloy 725
A nickel-chromium-molybdenum-niobium alloy with excellent corrosion resistance and very high strength, particularly suitable for sour gas applications.
M
Monel K500 / Alloy 500
A nickel-copper alloy that combines the excellent corrosion resistance of Monel 400 with greater strength and hardness.
S
Super Duplex / S32760
A highly alloyed duplex stainless steel offering superior corrosion resistance and strength compared to standard duplex grades, ideal for highly corrosive environments.
#
316/ 316L stainless
Austenitic stainless steels with added molybdenum, providing enhanced corrosion resistance, especially in chloride environments. 316L is the low carbon version.
709M40T / EN19T
A high tensile steel, often used for components requiring good strength and ductility, like axles, bolts, and gears.
817M40T / EN24T
A high-strength alloy steel, typically used for components requiring high tensile strength and toughness, such as shafts, gears, and connecting rods.
FAQs
What industries do you serve with your CNC machining services?
We cater to aerospace, oil & gas, extrusion, and specialist engineering sectors, providing precision-machined components tailored to each industry’s requirements.
Can you handle low to medium-volume production runs?
Yes, our flexible manufacturing capabilities allow us to efficiently manage low to medium-volume production, ensuring quick turnaround times.
Do you provide material certifications?
Absolutely. We supply full material certifications upon request, ensuring traceability and compliance with industry standards.
What is your maximum machining capacity?
Our CNC turning capabilities accommodate diameters from 10 mm to 500 mm and shafts up to 3.5 meters. For CNC milling, we handle travels up to 1500 mm with 4th axis capability.
How do you ensure quality in machining exotic alloys?
Our experienced team utilizes advanced CNC machinery and adheres to ISO 9001:2015 quality standards to ensure precision and consistency when machining exotic alloys.