Page 9 - Die_and_Molds_User_Guide_7861458_2017

Machinability of Die and Mold Materials
The following data can be useful for estimating machinability of common die and mold materials in
regular delivery conditions. Machinability rating is based on AISI/SAE 1212 free cutting
steel as 100%.

Carbon steels
1020 72% 1030 72% 1045 57%
1060 51% 1212 100% 1215 136%

Alloy steels
4130 72% 4140 66% 4340 57%
5015 78% 8620 68% 8720 68%

Tool steels
A2 42% D2 27% D3 28%
D7 25% H11 49 H12 46%
H13 46% H19 43% H21 36%
L6 39% O1 42% O6 57%
P2 42% P5 42% P20 38%
P21 38% S1 36% S5 31%
S7 45% W1 48% W2 45%

Maraging 300 33% Die and Mold Materials

Martensitic stainless steels
403 55% 420 45% 430 45%

Grey cast iron (ASTM A48-76 classes¹)
20 (DIN GG 10) 73% 40 (DIN GG 25) 48%

Nodular cast iron (ASTM A 536-80 classes)
65-45-12 (DIN GGG 50) 61% 80-55-06 (DIN GGG 60) 39%

Aluminum alloys
6061-T 200% 7075-T 140%

Copper and copper alloys 80%-120%

¹ ASTM is the American Society for Testing and Materials

9

Die and Mold