Cut-to-Size Die Blocks: Machining Allowance Guide for DB6, H13, D2 & P20
Technical guide by Virat Special Steels · Die and tool steel stockists since 1957 Order a Cut-to-Size Die Blocks with too little allowance and it can’t be cleaned up after heat treatment, so it ends up as scrap. Order too much and you pay for steel, sawing and machine time that turns into chips. This manual provides us with a summary of the allowance for machining based on the requirements of the various categories from the Indian forging , die-casting, and toolroom industries including DB6 (DIN 1.2714), H13, H11, D2, D3, and P20. Machining Allowance for Cut-to-Size Die Blocks Plan these ranges per side (per face), then confirm with your supplier: Delivery condition Allowance per side What it has to cover Black (hot-rolled or forged) 3–6 mm for most sizes; more on wide sections Scale, seams, decarburized skin, bow Saw-cut and rough-milled 1–2 mm Remaining geometry error, semi-finishing Six-side milled 0.2–0.4 mm Final sizing; standard programmes ship +0.4 to +0.8 mm...