Jason Wu

Jason Wu is a Tool Steel Technical Sales Engineer on the Fucheng Tool Steel technical desk, where six technical support engineers work alongside twelve export sales staff and read every first enquiry before anything is priced. An enquiry from a distributor or stockholder usually reaches him as a grade name, a section and a quantity per size, sometimes with a drawing. He maps the grade name to one of the fourteen grades the works melts, checks the section against the three forging lines, confirms whether the delivery condition should be annealed or pre-hardened together with the machining allowance to leave, and answers the document list. The reply goes out within 24 hours on a working day with feasibility, stock or production, and lead time.

On this blog he writes across the five categories in the order the questions arrive on the desk. Under Grades & Equivalents he sets out cross-references across AISI, DIN/W-Nr, JIS, GB, ASSAB and BÖHLER the way the desk confirms them in writing. Under Heat Treatment & Process he covers annealed and pre-hardened delivery, annealed hardness windows and what electroslag remelting and EFS grain refining change in the bar. Under Die & Mould Applications he explains grade choice for die casting, stamping and injection mould work by family. Under Machining & Supply he gives the saw cutting, grinding and milling tolerances and the difference between stock and melt lead times. Under Quality & Certification he explains how to read an EN 10204 3.1 material test certificate, the eight inspection steps and the bar-by-bar record from 100% ultrasonic testing to SEP 1921 Class D/d or E/e.

A reader who has finished one of his articles should be able to write a shorter enquiry: the confirmed grade and specification, the delivery condition, the section and quantity per size, and the documents required. Grade lists go to the technical desk through the contact page or to wonderful@fcstoolsteel.com, and a technical support engineer replies within 24 hours on a working day.