Origin: China Steel grade: H13/ 1/ 2344/ 4Cr5MoSiV1 Brand name: Fangyuan Special Certificate: ISO9001: 2000 Delivery condition : HBhb180-220 Size( mm) 50-420 ( rounds , 20-300 ( flats/ thickness) Property & Application: Very good toughness by ESR treatment, bear higher tempreratur with good cutting and polishing natures to safeguard its longer usage ; Applied in Aluminium, zinc, and Copper-based Alloy pressure and forged moulds or other hot forged moulds like shear Blades, Small size steel is the idear material for making Mandril as well as for making frequently used plastic moulds.