Graphite lead core
Category
Graphite lead core
Features
Product Details
The company's business scope is to produce various specifications of pencil lead products, H class 9H-H; F; HB; B class B-12B, 14B, 15B; woodworking core, charcoal painting core, graphite pen, sketch series, etc.
Lead quality standard
|
Variety |
Core diameterФ㎜ |
Core tip stress ≥ N |
Concentration D |
Hardness MPa |
slip ≤ |
Wear≤ |
|
9H |
2.00 |
13.72 |
0.05-0.06 |
578-647 |
0.225 |
0.5 |
|
8H |
2.00 |
13.72 |
0.07-0.08 |
539-598 |
0.225 |
0.5 |
|
7H |
2.00 |
13.72 |
0.07-0.08 |
500-559 |
0.215 |
0.6 |
|
6H |
2.00 |
13.23 |
0.09-0.10 |
441-519 |
0.215 |
0.7 |
|
5H |
2.00 |
13.23 |
0.09-0.10 |
382-461 |
0.205 |
0.9 |
|
4H |
2.00 |
12.25 |
0.11-0.12 |
333-402 |
0.205 |
1.1 |
|
3H |
2.00 |
12.25 |
0.11-0.12 |
284-353 |
0.205 |
1.3 |
|
2H |
2.00 |
11.76 |
0.13-0.14 |
245-304 |
0.185 |
1.5 |
|
H |
2.00 |
11.27 |
0.13-0.14 |
225-265 |
0.185 |
1.7 |
|
F |
2.00 |
10.78 |
0.15-0.17 |
196-235 |
0.180 |
1.7 |
|
HB |
2.1O |
9.80 |
0.18-0.20 |
176-225 |
0.175 |
1.7 |
|
B |
2.20 |
9.31 |
0.22-0.24 |
147-176 |
0.175 |
2.2 |
|
2B |
2.30 |
9.31 |
0.28-0.30 |
127-157 |
0.175 |
2.5 |
|
3B |
2.40 |
9.31 |
0.32-0.34 |
108-137 |
0.185 |
3.0 |
|
4B |
2.50 |
8.82 |
0.36-0.38 |
88-118 |
0.185 |
4.0 |
|
5B |
2.80 |
7.35 |
0.40-0.42 |
69-98 |
0.195 |
5.0 |
|
6B |
3.00 |
6.86 |
0.44-0.46 |
49-78 |
0.195 |
6.0 |
|
7B |
3.20 |
6.37 |
0.48-0.50 |
|
|
|
|
8B |
3.40 |
5.86 |
0.52-0.54 |
|
|
|
|
10B |
3.80 |
4.88 |
0.56-0.58 |
|
|
|
|
12B |
4.00 |
3.89 |
0.60-0.62 |
|
|
|
|
15B |
4.00 |
2.89 |
0.64-0.66 |
|
|
|
Key Words:
AC Motor 、PMDC Motor 、Brushless Motor 、Universal Motor 、Gearbox Motor
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Qingdao Mingheda Graphite New Material Co., Ltd. is a professional manufacturer of natural flake graphite for refractory materials.
Over the years, it has devoted itself to the production and research and development of three major parts of continuous casting in steel mills and graphite for magnesia-carbon bricks.
Call Us
Addreess
Room 1811, Haode Fortune Center, Pingdu City, Qingdao, Shandong Province
Factory address
Tianzhuang Industrial Park, Pingdu City, Qingdao, Shandong Province