We get RFQs for transformer core steel that specify a grade name and a thickness and not much else — and half the time, that’s not actually enough information for us to quote confidently, let alone guarantee the material will perform the way the buyer’s design expects. Grade selection (CRGO vs Hi-B, which thickness band) […]
Someone asked us last month whether they could just use leftover CRGO stock for a small batch of motor stampings instead of ordering CRNGO — the CRGO was already sitting in their warehouse, and ordering a new coil felt like unnecessary cost and lead time. It’s a reasonable question on the surface. The answer, though,
We field a lot of first-time RFQs from buyers who’ve never sourced electrical steel from China before, and the questions are almost always the same three: how do I know this mill is real, why does the quote look nothing like the price I saw on a trading site, and what happens if the steel
We still get RFQs where a buyer has specified CRGO for a motor housing because a spec sheet somewhere listed it as “the low-loss grade.” It isn’t wrong, exactly — CRGO does have lower core loss numbers than CRNGO in a lab test. But a motor’s magnetic field spins through 360 degrees, and CRGO’s advantage
The global grain-oriented electrical steel (CRGO) market is dominated by a small number of producers: in Japan, Nippon Steel Corporation (NSC) and JFE Steel; in Korea, POSCO; in China, Baowu (WISCO), Shougang, and specialty producers including Zhongxin Special Steel. When sourcing CRGO for transformer manufacturing, buyers in the Middle East, India, Southeast Asia, and Europe
Transformer core laminations, EV motor stator stampings, and generator core punchings all begin the same way: as wide electrical steel coils that must be slit to precise widths before being cut to their final shape. Precision slitting — the process of longitudinally cutting master coils into narrower strips — is a critical upstream step that
Importing electrical steel — whether grain-oriented CRGO for transformer cores or non-oriented CRNGO for motor stators — involves navigating HS codes, import duties, anti-dumping measures, and documentation requirements that vary significantly by destination market. This guide provides a practical reference for importers across the three largest markets for Chinese electrical steel exports: Europe, North America,
Sourcing electrical steel from China offers significant cost advantages — but it requires a structured qualification process to ensure that the material you receive actually meets the grade specifications your transformer or motor design demands. This guide walks through the complete verification process: from initial supplier screening through Mill Test Certificate (MTC) interpretation, third-party testing,
Silicon steel prices in 2026 are being pulled in opposing directions: EV demand is creating sustained demand growth for CRNGO, while the EU EcoDesign Tier 2 mandate has rewritten the grade mix for CRGO. At the same time, Chinese production capacity has surged, geopolitical trade flows are shifting, and energy costs in Asia have stabilized
The IEC 60076-20 transformer efficiency classification system — AA0, A0, A, and B — is not just a rating scale. Each class sets specific no-load loss limits that translate directly into CRGO grade requirements, core design parameters, and material costs. This guide decodes the efficiency class system and maps each level to the silicon steel
