Choose D2 tool steel<\/a> for dry abrasive wear; choose 440C stainless steel<\/a> when you need high hardness combined with corrosion resistance.<\/p>\n\n\n\n We supply both from Huangshi, China. D2 cold-work bar and plate, and 440C martensitic stainless bar. Tell us the part, how it fails, and the size you need, and we’ll quote the grade that fits.<\/p>\n\n\n\n D2 tool steel bars<\/a> \u00b7 440C stainless steel bars<\/a><\/p>\n<\/div>\n\n\n\nD2 vs 440C: Quick Selection Guide<\/h2>\n\n\n\n
If your requirement is…<\/th> Choose<\/th> Why<\/th><\/tr><\/thead> Dry industrial environment with heavy abrasive wear<\/td> D2<\/td> High carbide volume gives superior wear resistance and edge retention.<\/td><\/tr> Long production runs and tooling life<\/td> D2<\/td> Reduces resharpening frequency and improves tool life economics.<\/td><\/tr> Precision tooling with low distortion requirement<\/td> D2<\/td> Air hardening provides excellent dimensional stability.<\/td><\/tr> Severe cold forming or high compressive stress<\/td> D2<\/td> Performs well at high hardness in cold-work applications.<\/td><\/tr> Humid, wet, or mildly corrosive environment<\/td> 440C<\/td> High chromium enables true corrosion resistance.<\/td><\/tr> High hardness combined with corrosion resistance<\/td> 440C<\/td> Maintains hardness while resisting rust and pitting.<\/td><\/tr> Precision mechanical parts such as bearings, valves, and pump components<\/td> 440C<\/td> Suitable for contact components requiring both hardness and corrosion resistance.<\/td><\/tr> Clean or corrosion-sensitive service conditions<\/td> 440C<\/td> Better resistance to staining, oxidation, and chemical attack.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Need D2 or 440C steel?<\/h3>\n\n\n\n