Systematics of the material numbers
|
Class |
Material type |
Material group |
Elements and unusual feature |
|
|
Basic- and quality steel |
||
|
00 |
Basic steel |
|
|
|
01 |
Unalloyed |
General structural steel |
Rm < 500 N/mm² |
|
02 |
|
Rm < 500 N/mm² |
|
|
03 |
|
on average < 0,12% C or Rm < 400 N/mm² |
|
|
04 |
|
on average > 0,12% < 0,25% C or Rm > 400 < 500 N/mm² |
|
|
05 |
|
on average > 0,25% < 0,55% C or Rm > 500 < 700 N/mm² |
|
|
06 |
|
on average > 0,55% C or Rm > 700 N/mm² |
|
|
07 |
|
higher P or S amount |
|
|
08 |
Alloyed |
|
on average < 0,30% C |
|
09 |
|
on average > 0,30% C |
|
|
|
Unalloyed high-grade steel |
||
|
10 |
|
Special physical characteristics |
|
|
11 |
Structural steel |
< 0,5% C |
|
|
12 |
Structural steel |
> 0,5% C |
|
|
13 |
|
|
|
|
14 |
|
|
|
|
15 |
Tool steel 1.grade |
|
|
|
16 |
Tool steel 2.grade |
|
|
|
17 |
Tool steel 3.grade |
|
|
|
18 |
Tool steel for |
|
|
|
19 |
|
|
|
|
|
Alloyed high-grade steel |
||
|
20 |
Tool steel |
|
Cr |
|
21 |
|
Cr-Si , Cr-Mn , Cr-Mn-Si |
|
|
22 |
|
Cr-V , Cr-V-Si , Cr-V-Mn , Cr-V-Mn-Si |
|
|
23 |
|
Mo , Cr-Mo , Cr-Mo-V |
|
|
24 |
|
W , Cr-W |
|
|
25 |
|
W-V , Cr-W-V |
|
|
26 |
|
W , classes unless 24 , 25 and 27 |
|
|
27 |
|
with Ni |
|
|
28 |
|
other alloyings |
|
|
29 |
|
|
|
|
30 |
Different |
|
|
|
31 |
Hard alloyings |
|
|
|
32 |
High speed steel |
with Co |
|
|
33 |
High speed steel |
without Co |
|
|
34 |
Wear resisting steel |
|
|
|
35 |
Anti-friction |
|
|
|
36 |
Steels with special physical and magnetic characteristics |
without Co |
|
|
37 |
Steels with special physical and magnetic characteristics |
with Co |
|
|
38 |
Steels with special physical characteristics |
without Ni |
|
|
39 |
Steels with special physical characteristics |
with Ni |
|
|
40 |
Chemical |
Stainless steels |
< 2,0% Ni , without Mo , Nb and Ti |
|
41 |
Stainless steels |
< 2,0% Ni , with Mo , without Nb and Ti |
|
|
42 |
Stainless steels |
|
|
|
43 |
Stainless steels |
> 2,0% Ni , without Mo , Nb and Ti |
|
|
44 |
Stainless steels |
> 2,0% Ni , with Mo , without Nb and Ti |
|
|
45 |
Stainless steels |
> 2,0% Ni , with Cu , Nb or Ti |
|
|
46 |
Aviation materials |
|
|
|
47 |
Heat resisting steel |
< 2,0% Ni |
|
|
48 |
Heat resisting steel |
> 2,0% Ni |
|
|
49 |
High temperature steel |
|
|
|
50 |
Structural steel |
|
Mn , Si , Cu |
|
51 |
|
Mn-Si , Mn-Cr |
|
|
52 |
|
Mn-Cu , Mn-V , Si-V , Mn-Si-V |
|
|
53 |
|
Mn-Ti , Si-Ti , Mn-Si-Ti , Mn-Si-Zr |
|
|
54 |
|
Mo , Mn-Mo , Si-Mo , Nb , Ti , V , W |
|
|
55 |
|
Micro alloying |
|
|
56 |
|
Ni |
|
|
57 |
|
Cr-Ni with < 1,0% Cr |
|
|
58 |
|
Cr-Ni with > 1,0% < 1,5% Cr |
|
|
59 |
|
Cr-Ni with > 1,5% < 2,0% Cr |
|
|
60 |
|
Cr-Ni with > 2,0% < 3,0% Cr |
|
|
61 |
|
|
|
|
62 |
|
Ni-Si , Ni-Mn , Ni-Cu |
|
|
63 |
|
Ni-Mo , Ni-Mo-Mn , Ni-Mo-Cu , Ni-Mo-V , Ni-Mn-V |
|
|
64 |
|
|
|
|
65 |
|
Cr-Ni-Mo with < 0,4% Mo and < 2,0% Ni |
|
|
66 |
|
Cr-Ni-Mo with < 0,4% Mo and > 2,0% < 3,5% Ni |
|
|
67 |
|
Cr-Ni-Mo with > 3,5% < 5,0% Ni or > 0,4% Mo |
|
|
68 |
|
Cr-Ni-V , Cr-Ni-W , Cr-Ni-V-W |
|
|
69 |
|
Cr-Ni classes unless 57 - 68 |
|
|
70 |
|
Cr |
|
|
71 |
|
Cr-Si , Cr-Mn , Cr-Si-Mn |
|
|
72 |
|
Cr-Mo with < 0,35% Mo |
|
|
73 |
|
Cr-Mo with > 0,35% Mo |
|
|
74 |
|
|
|
|
75 |
|
Cr-V with < 2,0% Cr |
|
|
76 |
|
Cr-V with > 2,0% Cr |
|
|
77 |
|
Cr-Mo-V |
|
|
78 |
|
|
|
|
79 |
|
Cr-Mn-Mo , Cr-Mn-Mo-V |
|
|
80 |
|
Cr-Si-Mo , Cr-Si-Mn-Mo , Cr-Si-Mo-V , Cr-Si-Mn-Mo-V |
|
|
81 |
|
Cr-Si-V , Cr-Mn-V , Cr-Si-Mn-V |
|
|
82 |
|
|
|
|
83 |
|
|
|
|
84 |
|
Cr-Si-Ti , Cr-Mn-Ti , Cr-Si-Mn-Ti |
|
|
85 |
Nitriding steel |
|
|
|
86 |
|
|
|
|
87 |
|
|
|
|
88 |
|
|
|
|
89 |
Higher strength weldable structural steel |
|
|