Friction Materials Chopped Steel Wool (brake pads)
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China [CN] Chopped steel fiber is made from high quality low carbon steel wire.It is produced through craping,choping and mixing.This kind of steel fiber is widely used as the brake pad in motocycle,car,lorry,train,airplane,etc.Now it is fully replaced the asbestos,has the good feature of stability,low rate of friction and good heating dissipation.
| Grade Item Test | D0-160 | D1-80 | AD1-80 | 1-80 | 3L-80 | 3-60 | Q4-80 | ||
| Sieve Analysis 100g/8min | 14# | 0-0.5 | 0-0.5 | 0-0.5 | 0-1 | 0-1 | 0-1 | 0-1 | |
| 20# | 0-2 | 0-1.0 | 0-2 | 0-5 | 0-5 | 2-5 | 1.5-6.0 | ||
| 40# | 2-5 | 2-12 | 3-8 | 5-15 | 5-25 | 10-20 | 12-20 | ||
| 70# | 10-25 | 14-25 | 14-20 | 15-30 | 10-25 | 20-30 | 15-30 | ||
| 100# | 10-20 | 10-20 | 10-14 | 5-25 | 5-20 | 10-25 | 15-25 | ||
| Pan | 50-75 | 50-70 | 60-75 | 50-65 | 50-60 | 25-45 | 20-48 | ||
| Bulk Volume ml/g | 0.80-1.05 | 0.80-1.10 | 0.78-0.85 | 0.80-1.10 | 0.80-1.05 | 0.90-1.10 | 0.95-1.30 | ||
| Oil content (%) | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 | ||
| Fibre width | Min | 0.0127 | 0.0360 | 0.0310 | 0.0318 | 0.0635 | 0.0889 | 0.1410 | |
| Max | 0.0381 | 0.0598 | 0.0635 | 0.0635 | 0.0889 | 0.1410 | 0.2072 | ||
| Chemical (%) Composition | C Mn P S Si 0.07-0.12 <1.25 <0.03 <0.03 ≤0.07 | ||||||||
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