Buderus Edelstahl recommends the following Mould Steel for different applications:
Forging Unit
Tool Type
Stress and tool life quantity criterion Forging quantity - batch size
Die steel and impression typology.
Strength
when assembled Hardness
Hammer Unit
Full die
Cracking
Wear
Low
High
Low
High
Flat dies rotationally symmetrical and asymmetrical
Material Number
N/mm2
Hardness HB
2714
2714
2714
2714
ISO-B
ISO-Bmod
ISO-B
ISO-B mod
1300
1300
1350
1350
385
385
400
400
Solid dies symmetrical and asymmetrical
Material Number
N/mm2
Hardness HB
2714
2714
2714
2714
ISO-B
ISO-Bmod
ISO-B
ISO-B mod
1300
1300
1350
1350
385
385
400
400
Pivots and hubs dies rotationally symmetrical and asymmetrical
Material Number
N/mm2
Hardness HB
2714
2714
2714
2714
ISO-B mod
ISO-Bmod
ISO-B mod
ISO-B mod
1300
1300
1350
1350
385
385
400
400
Mandrel dies rotationally symmetrical, deep impression
Material Number
N/mm2
Hardness HB
2714
2365
2714
2365
ISO-B mod
ISO-B
ISO-B mod
ISO-B
1300
1350
1300
1350
385
400
385
400
Strength range : ± 50 N/mm2
Brinell hardness range : ± 20HB
Rockwell hardness range: ±2 HRc
"These are general recommendations, as the performance of a die involves various factors, please discuss with our quality assurance engineers for the exact tool steel recommendations for your application".