303 vs 304 vs 316 Stainless Steel: What’s the Real Difference?
Stainless steel isn’t one material it’s a family of iron alloys that all contain at least 10 5 chromium for corrosion resistance and 303 304 and 316 are three of the most common members of that family The difference between them comes down to which elements get added on top of that…
What Does a g5 Tolerance Mean on a Shaft? (And How to Read Any ISO Tolerance Code)
A g5 tolerance on a shaft is an ISO 286 designation the lowercase g sets where the tolerance zone sits relative to the nominal diameter slightly below it guaranteeing the shaft is always a touch undersize and the 5 sets how wide that zone is a tight IT5 grade precision territory Together…
What Is Carbon Steel? Composition, Grades, and How Carbon Content Changes Everything
Carbon steel is an alloy of iron and carbon in which carbon not chromium nickel or other elements is the main property changing ingredient typically making up 0 05 to 2 1 of the mix That carbon content is the single biggest lever on the material’s hardness strength ductility and weldability more…
How to Remove Rust from Stainless Steel
Surface rust on stainless steel can usually be removed without damaging the finish using nothing more exotic than baking soda water and a soft cloth for light cases working up to an oxalic acid cleaner for stubborn spots The key rules are to scrub with the grain never use steel wool and…
How to Drill Stainless Steel
Drilling stainless steel comes down to one core principle keep the bit cutting not rubbing Stainless work hardens quickly when a dull or fast spinning bit slips instead of biting in and once that happens the surface becomes genuinely harder to drill than it was a moment before The fix is a…
Is Zinc Plated Rust Proof? No — Here’s What “Rust-Resistant” Actually Means
No zinc plating is not rust proof It’s rust resistant the zinc layer protects the steel underneath through sacrificial corrosion but it isn’t a permanent shield Once the zinc coating is worn away or consumed the underlying steel is exposed and will rust the way any bare steel does Whether the coating…
How to Calculate, Measure, and Test Tensile Strength
There are two ways to answer what’s the tensile strength depending on what you already have If you already know the maximum force a part carried before failing and its original cross sectional area it’s a one line calculation Fmax A If you don’t have those numbers yet you need to run…