Shock Absorber Base Valve

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

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