Special Steels
Hot Work Tools Steels
Grade DIN (WNr.) DIN (Symbol) JIS AISI
DCV 1.2344 X40CrMoV5-1 SKD61 H13
WM30 1.2367 X38CrMoV5-3    
SRSE 1.2714 55NiCrMoV7 SKT4 6F3
Grade Chemical Composition %wt.
DCV C Si Mn Cr Mo Ni V W Others
0.35-0.42 0.80-1.20 0.25-0.50 4.80-5.50 1.20-1.50   0.85-1.15    
Detail            High strength at elevated temperatures, high hot wear resistance, good toughness, thermal
                       conductivity and resistant to hot cracking, limited water cooling possible.
                       Standard material for hot forming tools, extrusion tools, forging dies, pressure casting tools,
                       hot shear knives, tools for plastic industry.
Grade Chemical Composition %wt.
WM30 C Si Mn Cr Mo Ni V W Others
0.35-0.40 0.30-0.50 0.30-0.50 4.80-5.20 2.70-3.20   0.40-0.60    
Detail            Hot work tool steel with good wear resistance at high temperatures, high hardness and
                       tempering strength.
                       Large die casting tools, tools needing high strength at elevated temperatures, forging dies,
                       mandrels, extrusion dies.
Grade Chemical Composition %wt.
SRSE C Si Mn Cr Mo Ni V W Others
0.50-0.60 0.10-0.40 0.60-0.90 0.80-1.20 0.35-0.55 1.50-1.80 0.05-0.15    
Detail           Ni alloyed die steel with excellent toughness and good through hardening properties.
                      Standard material for forging dies, hot shear knives, punches, backing plates, die holders, hot
                      punching tools.