Section 1 Metal Materials
1. Black metal:
1.1 Carbon steel S45C (45 #);
1.2 Free cutting steel SUM24L, SUM12 (Y12), SUM23 (US grade: SAE1215);
1.3 Alloy structural steel SCM415 (15CrMo), SCM420 (20CrMo), SCM435 (35CrMo), SCM440 (42CrMo), 38CrMoAl (SACM645), SCr440 (40Cr);
1.4 Bearing steel SUJ2 (GCr15);
1.5 Stainless steel SUS430 (1Cr17), SUS420F, SUS303, SUS304 (0Cr18Ni9).
The Chinese standard (GB) grade is shown in the parentheses above, and the Japanese standard (JIS) grade is shown outside the parentheses

Section 2 Non ferrous Metal Materials
2.1 Copper and copper alloys C3604, C3602, H62, H59, HPb59-1, HPb62-1, QSn6.5-0.1;
2.2 Aluminum and aluminum alloy 6061 (divided into 0 state, T4 state, and T6 state by state).

Section 3 Other non-metallic materials
Polyoxymethylene (POM), polyamide (nylon PA).