Gray iron or ductile iron for your casting? Compare strength, damping, cost and typical parts, plus the mistakes buyers make with grades.
Gray Iron vs Ductile Iron: Selecting the Right Cast Iron Grade Read More »
Compare WCB carbon steel, CF8M stainless and duplex 2205 for valve body castings. Service limits, cost factors and buyer mistakes explained.
Valve Body Casting Materials Compared: WCB vs CF8M vs Duplex 2205 Read More »
Send these nine items with your casting RFQ and get accurate quotes in days, not weeks. Free checklist from an IATF 16949 Chinese foundry.
Casting RFQ Checklist: What to Send for an Accurate Quote Read More »
Quality engineer auditing an investment casting foundry with checklist documents on site Certificates prove a foundry passed an audit once. Records prove what happens on a night shift in August. Investment casting runs across roughly twenty unit operations between wax injection and a packed box, and most quality escapes happen mid-chain where nobody outside the
Audit a Chinese Investment Casting Foundry: 30-Point Checklist Read More »
Two lost wax castings compared, one with a smooth silica sol finish and one with a coarser water glass finish Send a drawing to a Chinese lost wax foundry and the first process question back is usually the same: silica sol or water glass? Those names describe the binder that builds the ceramic shell, and
Silica Sol vs Water Glass Investment Casting: How to Choose Read More »
Every dimension on a drawing is a cost decision, most of them made before a foundry ever sees the file. Investment casting is uniquely forgiving of complex geometry — that’s why it wins over sand casting on detail and over fabrication on part consolidation — but it still obeys the physics of solidification, shell strength
Design for Castability: 10 DFM Rules to Cut Casting Cost Read More »
A casting that machines cleanly, welds without cracking and passes its pressure test is the result you actually buy — but none of those outcomes are visible on the day the crate arrives. What you receive instead is a stack of paper: a melt certificate, a dimensional layout, maybe a PPAP folder or maybe nothing
Material Certification Guide: EN 10204 3.1, FAIR, ISIR, PPAP Read More »
Valve and pump castings are pressure-containing components. When one fails, the consequence is not a warranty claim — it is a leak, a shutdown, a safety incident, or a lost end-customer. That reality changes what “sourcing from China” means for this category. You are not buying a commodity; you are buying a documented, tested, traceable
Sourcing Valve & Pump Castings from China: 2026 Guide Read More »
Every RFQ for a precision casting eventually lands on the same three-way tension: the drawing calls for a tight tolerance, the buyer wants a low unit price, and the foundry wants a process that does not scrap half the batch. Tolerance grade is the single variable that controls all three. Pick CT4 when CT6 was
Investment Casting Tolerances: CT4 vs CT5 vs CT6 Cost Guide Read More »
1. Why investment casting is a good match for many medical device components Investment casting (lost-wax) lets a single part replace several weldments, fasteners and assemblies. For medical instruments — a retractor blade hub, a forceps hinge, a dental-handle body, an infusion-pump gear housing — that means fewer sterile-trap gaps, fewer autoclave-cycle failure points, fewer parts
Investment Casting for Medical Devices: Buyer’s Guide Read More »
