We share information and tips we’ve learned from our experience in the CNC machining and sheet metal fabrication industry.
5086 aluminum is often discussed when a project needs aluminum strength, corrosion resistance, and reliable fabrication in wet or outdoor environments. For CNC machining, it is not chosen for the same reasons as free-machining 6061 or ultra-high-strength steels. Instead, engineers usually consider it when the part must survive saltwater exposure, vibration, welded assembly, or structural […]
A practical guide to 5083 aluminum CNC machining, covering composition, properties, machined parts, machining challenges, solutions, and a clear comparison with maraging steel for material selection. What Is 5083 Aluminum? 5083 aluminum is a high-magnesium, non-heat-treatable aluminum alloy known for marine corrosion resistance, weldability, toughness, and relatively high strength among 5xxx aluminum grades. For CNC […]
Learn what 3003 aluminum is, how it performs in CNC machining, which parts commonly use it, how it compares with maraging steel, and how to control burrs, gummy chips, tolerance, and surface finish in custom CNC aluminum parts. What Is 3003 Aluminum? 3003 aluminum is a wrought aluminum-manganese alloy in the 3xxx aluminum series. It […]
Learn the melting point of iron, how iron thermal behavior affects CNC machining, and what engineers should know about heat, tool wear, tolerances, coolant, and iron-based material selection. What Is the Melting Point of Iron? The melting point of iron is commonly listed as about 1,538°C, or 2,800°F. This number describes the temperature at which […]
The question “is nickel magnetic” looks simple, but it becomes more practical when a CNC machined part is involved. Nickel itself is a ferromagnetic metal at normal room temperature, so a pure nickel sample can respond to a magnet. However, a finished machined component is rarely just pure nickel. It may be steel, aluminum, brass, […]
440A and 440C stainless steel are often compared because both are hardenable martensitic stainless steels used when a CNC machined part needs wear resistance, moderate corrosion resistance, and stable precision features. The real difference is not only hardness. Engineers also compare carbon content, carbide level, cutting difficulty, heat treatment movement, surface finish, and final cost. […]
Learn what AMS 4027 aluminum alloy is, how 6061-T6 and 6061-T651 are used in CNC machining, and how their machinability compares with maraging steel for precision parts. What Is AMS 4027 Aluminum Alloy? AMS 4027 aluminum alloy is best understood as an aerospace material specification rather than a separate aluminum grade. In most purchasing and […]
AISI/SAE 1008 steel and ASTM A36 steel are both low-carbon steels, but engineers do not usually select them for exactly the same reason. 1008 is commonly associated with low carbon content, ductility, cold rolled sheet, simple forming, and light-duty CNC machined features. A36 is a structural carbon steel specification used for plate, bar, angles, channels, […]
Iron is often selected for machined parts because it offers useful strength, rigidity, damping behavior, and cost advantages in many industrial applications. However, the density of iron is not just a reference number in a material chart. It influences part weight, cutting load, fixturing, shipping cost, vibration, thermal behavior, and the way a CNC shop […]
2020 vs 4040 vs 8020 aluminum is a common search when designers choose a modular frame, fixture, machine stand, 3D printer structure, robotic base, or custom CNC machined aluminum extrusion part. The comparison is useful, but the terms must be understood correctly. 2020 and 4040 usually describe metric profile sizes, while 8020 often means an […]
When silicon is added to an aluminum alloy in an engineering project, it is not included by accident. The addition changes how the alloy behaves during casting, machining, wear, and service. This often leads to a practical question: is silicon a metal, a nonmetal, or something between the two? This article explains elements such as […]
Choosing the correct stainless steel can be difficult because labels such as 18/10, 304, and 316 are often presented as if they describe interchangeable materials. All three are associated with durability, corrosion resistance, and a clean surface, yet their chemistry and service limits are not identical. An incorrect choice can increase machining expenses, shorten component […]
Choosing between stainless steel 18/10 and grade 316 is not simply a matter of selecting the more expensive alloy. For general indoor products, food-contact equipment, decorative components, and consumer items, 18/10 stainless steel usually delivers an effective balance of appearance, durability, and price. The main distinction is chemical composition. The label 18/10 indicates roughly 18% […]
Carbon appears as porous graphite, dense crystalline diamond, fibers, powders, and engineered composites. Because these products have different internal structures, one number cannot represent carbon density in every engineering context. This guide explains practical values, measurement bases, calculations, design implications, and CNC machining considerations. What Is the Density of Carbon? The phrase density of carbon […]
Brushed metal and maraging steel are often searched together by buyers evaluating premium CNC machined parts, but they describe two different decisions. Brushed metal refers to a directional surface texture created on a metallic substrate, while maraging steel is a family of low-carbon, nickel-rich, age-hardenable steels. A CNC project may use maraging steel as the […]
Stainless steel and titanium are both premium engineering metals, but they solve different problems. Stainless steel is usually selected for rigidity, surface durability, availability, and cost control. Titanium is selected when weight reduction, corrosion resistance, and strength-to-weight ratio matter more than raw material price. For CNC machined parts, the best choice also depends on wall […]
Polypropylene and PVC are common thermoplastics, but they solve different design problems. The better choice depends on load, flexibility, chemical exposure, joining method, storage safety, outdoor use, and manufacturing process. This makes the comparison more useful for real drawings and purchase specifications. What Is Polypropylene? Polypropylene, or PP, is a low-density semi-crystalline plastic known for […]
Polypropylene and polyethylene are both polyolefin thermoplastics, so they can look similar in a product catalog. Both are lightweight, moisture resistant, chemically resistant, and commonly used in molded, extruded, fabricated, and machined plastic parts. The important difference is that they do not behave the same under heat, impact, bending, cold service, or precision machining. For […]
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