Technikai specifikáció
- Csavarok
- Alapanyagok
Materials for bolts
|
Diameter M |
Tensile Strength Classes |
Tensile Strength MPa |
Material |
Chemical composition (main) |
|
2-5,9 mm |
320-430 |
QSt-36-3 |
C% 0,06-0,13 / Si% ≤0,1 / Mn% 0,25-0,45 |
|
|
2-100 mm |
0-520 |
19MnB4 |
C% 0,17-0,24 / Si% ≤0,4 / Mn% 0,8-1,15 |
|
|
5-25 mm |
0-600 |
23MnB4 |
C% 0,2-0,25 / Si% ≤0,3 / Mn% 0,9-1,2 |
|
|
2-100 mm |
0-570 |
35B2 |
C% 0,32-0,4 / Si% 0,15-0,4 / Mn% 0,5-0,8 |
|
|
36CrB4 |
C% 0,33-0,39 / Si% ≤0,4 / Mn% 0,7-1 |
|||
|
0-16 mm |
1000-1200 |
41Cr4 |
C% 0,38-0,45 / Si% ≤0,4 / Mn% 0,6-0,9 |
|
|
— |
370-490 |
C15 |
C% ≤0,2 / Si% ≤0,6 / Mn% 0,3-0,6 |
Industrial proposals to manufacture high tensile bolts
|
Diameter till |
Tensile Strength Classes |
||
|
8.8 |
10.9 |
12.9 |
|
|
— |
|||
|
M6 |
19MnB4 |
23 MnB4 |
41Cr4 |
|
M8 |
35B2 45B2 |
37Cr4 |
|
|
M10 |
|||
|
M12 |
20 MnB4 |
35B2 45B2 |
41Cr4 |
|
M14 |
|||
|
M16 |
|||
|
M18 |
35B2 |
34Cr4 37Cr4 |
34CrMo4 |
|
M20 |
45B2 |
41Cr4 |
42CrMo4 |
|
M22 |
|||
|
M24 |
34Cr4 |
34CrMo4 |
34CrNiMo6 |
Materials for tool production
|
Material Steel |
Hardness |
|
W500 |
0-248 HB annealed ≥42 HRC tempered |
|
CMo4 |
0-241 HB annealed |
|
K-1 |
0-255 HB annealed ≥60 HRC tempered |
|
K-13 |
0-235 HB annealed ≥50 HRC tempered |
|
S-600 |
0-269 HB annealed ≥64 HRC tempered |