Shock absorber base valve is made by powder pressing and sintering (Powder Metallurgy) technology,
then do black steam oxidation as per surface treatment.
Technical information:
1. Material: MPIF 35 FC - 0205
Equivalent material: DIN 30910 - Sint C10
2. Chemical composition
Designation | Fe |
Cu |
C |
FC - 0205 | Balance |
1.5-3.9% |
0.3-0.6% |
3. Hardness range: HRB 40 – 100 Before black oxidation (around 50 HRB)
After black oxidation (around 85 HRB)
4. Density range: 6.3-6.9 g/cm³
5. Possible tolerance for ID: 0.03 mm, for OD: 0.05 mm
6. General tolerance: ISO 2768 – m
7. Degree of oxidation: 2-5%, thickness 0.003-0.005 mm Fe3O4
Code | Type | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | N | H1 | H2 | H3 | H4 | H5 | H6 | H7 | h | A1 | D01 | D02 | D03 | D04 | D05 | D06 | D07 | D08 |
DW466 | BV2 | 55 | 50 | 5 | 33 | 27 | 43 | 2.5 | 6 | 13 | 3.5 | 8 | 6 | 0.03 | 30 | ||||||||||||
DW342 | BV1 | 35 | 30.8 | 16 | 21 | 19 | 28 | 15 | 7.3 | 4.3 | 4 | 30 | |||||||||||||||
DW566 | BV1 | 27.5 | 23.8 | 18 | 19 | 22 | 20 | 9.5 | 4.5 | 2.2 | 2 | ||||||||||||||||
DW461-1 | BV2 | 27.4 | 25 | 6 | 20.8 | 18 | 25.4 | 1 | 3 | 11.5 | 4 | 4.4 | 1.8 | 0.2 | 26 | 9.1 | 16 | 17.9 | 9.7 | 14.5 | 17.9 | 21 | 23 | ||||
DW463 | BV2 | 32.7 | 30 | 6 | 27 | 21 | 28.5 | 2 | 6 | 12.5 | 3.5 | 5.4 | 2.5 | 0.4 | 20 | 9.5 | 18 | 20.5 | 11 | 18.5 | 20.5 | 25.5 |