Author name: todd

Gray cast iron absorbs roughly four times more vibration than cast steel. That is why the “weaker” metal is the […]

An engineer redlines a bracket from gray iron to ductile iron after an FEA report flags a stress concentration. Six

CF8, CF8M, and CF3M share nearly the same 18% chromium base and strength minimums within a few ksi of each

Two foundries can read the same drawing and quote different parts. The difference is not in the drawing — it’s

A simple gray iron casting with no cores ships in four to six weeks. Add multiple cores, and that same

Most casting project delays don’t start on the foundry floor. They start in the buyer’s RFQ package — missing tolerances,

You specified RT on your last casting order — but did it actually catch the defect that mattered? Most NDT

ASTM maintains over 80 specifications that touch steel and iron castings, but a typical sand casting purchase order only references

A specifier pastes “ASTM A802 Level III” into a drawing for a structural bracket and ships the RFQ. Three foundries

The average steel foundry converts only 53.3% of the metal it pours into finished castings. The rest — nearly half

Are you comparing casting prices — or total landed costs? The answer determines whether your cost analysis is worth the

How many variables does your team evaluate before choosing between sand casting and forging? If the answer is “cost and

Centrifugal casting specialists love to cite a 30% strength advantage over static casting methods. That number is real — but

How confident are you that the quality requirements in your last casting purchase order actually protect you from field failures?

The first question I get from procurement teams planning a casting project is some version of “how long will this

“Cast iron” and “gray iron” are not two different materials. Gray iron is one specific type within the cast iron

Defects and rework on Chinese castings increase procurement costs by 15-30% — and that’s before you add 25% Section 232

Shell mold casting can hold draft angles down to one degree — sometimes zero. Green sand needs two to three

Every chill and every chaplet I place in a mold solves one of two problems: heat or position. A chill

Most engineers who ask their foundry for better surface finish get the same answer: use finer sand. That advice is

A wood pattern that warps after six months of storage costs you more than the aluminum pattern you avoided buying

Ductile iron is one of the most widely cast ferrous alloys in production. The material is not experimental, niche, or

A six-piece welded pivot arm hits the fabrication floor — cutting, fitting, welding, grinding, stress-relieving. The same part as a

Pick up a sand casting and a die casting side by side. Run your thumb across both surfaces. The sand

When a new casting job lands on my bench, the first two questions I ask are always the same: how

Resin sand casting uses a chemical binder — typically furan or phenolic urethane — instead of the clay-and-water mixture in

Every week someone sends me a drawing with +/-0.5 mm on every dimension and asks if sand casting can hold

Gray iron’s compressive strength reaches 3-4x its tensile strength — a property inversion that makes it the dominant choice for

Sand casting produces roughly 70% of all metal castings worldwide. The blank you receive from a foundry arrives rough —

Which pattern type does your project actually need? Skeleton patterns and sweep patterns get catalogued alongside split patterns as if

Most people walking into a foundry for the first time call the pattern “the mold.” It is not the mold.

A pattern that’s off by half a percent in shrinkage produces castings that miss the machining envelope — and the

Every stainless steel family — austenitic, ferritic, martensitic, duplex, and precipitation-hardened — has established cast equivalents with ASTM designations. I’ve

On a recent order of fifty 1,000-lb steel castings, 91% of all grinding time went to remediating casting defects —

Yes. Steel is sand cast every day — for valve bodies, pump housings, structural brackets, and pressure-containing components across every

A $10,000 savings on tooling sounds like a clear win — until a 20-minute CNC cycle on every unit burns

A $50,000 die casting mold adds $50 to every part at 1,000 units — but only $0.50 at 100,000. That

Every “top 10 sand casting companies” list I’ve reviewed in the past year was written by a foundry that ranked

The first 3D printed sand mold I unpacked looked wrong. The layer lines were visible, the surface felt rougher than

I pull dry sand castings off the line every week that could have been green sand jobs. The tolerance table

Sand-related defects account for 30 to 40 percent of all casting rejections. A large share of those trace directly to

Sand casting is not a permanent mold process. It is an expendable mold process — you break the mold apart

Most sand molds get used exactly once. The mold is destroyed when you break it apart to pull out the

I’ve reviewed thousands of casting quotes over the years, and the most common budgeting mistake I see is treating the

42% of North American foundries run green sand and 40% run no-bake — a near-even split that tells you neither

Automated green sand lines produce over 300 molds per hour — faster than any other sand casting method. That speed,

Sand type and mold type are not the same thing, even though most references use the terms interchangeably. The sand

Sand selection is not one choice but two — the base sand material and the bonding system that holds it

Pick up a handful of beach sand and a handful of casting sand, and you will feel the difference immediately.

Sand casting accounts for roughly 46% of global metal casting volume. The “70% or more” figure often quoted for sand