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Standard parts
Blades serious
Carbide wire drawing dies
Grade Recommendation and classification as per the inner size
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| Domestic Grade | Chemical composition | Mechanical Prioerties | ||||
| Hardness | Bending Strength | Compression Strength | Density | |||
| WC | Co+Rare Metal | HRA | N/㎜2 | N/㎜2 | g/cm3 | |
| YG6X | 94 | 6 | 91 | 1560 | 5460 | 14.8-15.1 |
| YG6A | 93 | 7 | 91.5 | 1680 | 5400 | 14.9-15.2 |
| YG6 | 94 | 6 | 89.5 | 1670 | 5200 | 14.7-15.1 |
| YG8M | 93 | 7 | 89.5 | 1720 | 4900 | 14.7-14.8 |
| YG8 | 92 | 8 | 89 | 1840 | 4800 | 14.6-14.9 |
|
Inner siz（mm） |
Size of cabid（mm） |
Recommendation steel size（mm） |
Tolerance (mm) |
|
0.15--0.5 |
9*6 |
25*12 |
-0.01/0 |
|
0.5--2.6 |
13*10 |
30*16 |
-0.01/0 |
|
0.8--3.5 |
16*13 |
32*23 |
-0.01/0 |
|
1.0--3.5 |
16*14 |
32*23 |
-0.01/0 |
|
1.5--6.5 |
20*17 |
40*25 |
-0.01/0 |
|
1.8--6.5 |
22*18 |
40*26 |
-0.02/0 |
|
3.0--9.5 |
25*20 |
50*28 |
-0.02/0 |
|
5.5--12.5 |
30*22 |
70*35 |
-0.02/0 |
|
8.5--16.5 |
35*25 |
75*35 |
-0.02/0 |
|
12.5--16.5 |
38*25 |
80*35 |
-0.02/0 |
|
16.5--21.5 |
40*25 |
85*35 |
-0.02/0 |
|
21.5--24.5 |
50*28 |
110*45 |
-0.03/0 |
|
24.5--34.5 |
60*35 |
120*50 |
-0.03/0 |
|
34.5--43.5 |
70*35 |
130*60 |
-0.035/0 |
|
43.5--45.5 |
80*35 |
140*60 |
-0.035/0 |
|
45.5--51.00 |
90*35 |
150*60 |
-0.05/0 |
|
51.00--56.00 |
100*40 |
160*75 |
-0.05/0 |
|
57.00---65.00 |
110*40 |
170*75 |
-0.05/0 |
|
66.00--69.00 |
120*45 |
180*80 |
-0.05/0 |
|
70.00-76.00 |
130*50 |
190*85 |
-0.05/0 |
High hardness and good wear resistance: Hardness at room temperature can reach HRA78-89, good red hardness under high temperature, 600℃ over high-speed steel, 1000℃ over the room temperature of carbon steel.
High mechanical strength: The compressive strength of up to 6000MN/㎡, 900℃,the bending strength can still above 6000MN/㎡.
High modulus of elasticity: Good rigidity at room temperature, no significant plastic deformation. Young’s modulus is 2-3 times than steel.
Corrosion resistance and good oxidation resistance: acid, alkali, at 6 00—800℃ without significant oxidation.
The linear expansion coefficient is small: in the range of 20 to 400℃ for steel 0.35-0.65 .
Conductivity: similar with iron and ferroalloy.
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