23QG075 Grain-Oriented Electrical Steel — 0.23 mm, 0.75 W/kg
23QG075: what it is and where it belongs
23QG075 is the highest tier at the 0.23 mm thickness — the workhorse gauge of Chinese CRGO production. It reaches 0.75 W/kg at 1.90 T, so it certifies Grade 1 units at a materially lower cost than 0.20 mm, provided the core design has been recalculated for the extra lamination count.
Typical applications
Grade 1 oil-immersed distribution transformers
Grade 1 dry-type transformers
Reactors and units where core loss dominates
Projects needing Grade 1 performance at controlled cost
Selection and processing notes
Substituting 0.23 for 0.20 mm changes lamination count and core window: recalculate, do not swap on the loss number alone.
Processing is noticeably more forgiving than 0.20 mm on standard slitting and stacking lines.
Supply form and documentation
Supplied as master coil 900–1250 mm wide (508 mm ID, 2–5 t per coil), slit strip from approximately 100 mm at ±0.5 mm width tolerance, or cut-to-length sheets to your lamination size. Standard insulation coating is C5, with C6 heat-resistant and chrome-free options. Every shipment carries an MTC to EN 10204 3.1 stating grade, heat number, measured core loss and flux density, plus packing list and — for export — certificate of origin and a standard cross-reference sheet against IEC 60404-8-7, ASTM A876, EN 10107 and JIS C 2553.
Equivalent designations
Nearest mill equivalent: B23R075. Buyers specifying to IEC or ASTM may treat this grade as the 0.23 mm, 0.75 W/kg tier; the equivalence sheet is supplied with the quotation so the substitution can be written into the purchase order without ambiguity.
