Industry Insights

Send these nine items with your casting RFQ and get accurate quotes in days, not weeks. Free checklist from an IATF 16949 Chinese foundry.

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

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

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

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

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