Torich International Limited
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49mm 2in 41mm 2 Inch Fork Stanchion Hard Chrome Motorcycle Fork Tube Extensions
Quick detail:
Tube standard:ASTM A519
Material: 42CrMo4
Surface treatment: Hard Chromed
Application: Motorcycle Fork Tube Extensions
Descriptions:
Material:
42CrMo4 ,4140,4130
Partners: TISCO,POSCO,BAOSTEEL,JISCO,LISCO etc.
A519 Seamless Steel Pipe Tube
Chemical Composition:
|
Standard
|
Steel Grade
| C(%) | Si(%) | Mn(%) | S(%) | P(%) |
| A519 | 1010 | 0.05-0.15 | 0.15-0.35 | 0.3-0.6 | ≤0.050 | ≤0.040 |
| 1020 | 0.15-0.25 | 0.15-0.35 | 0.3-0.6 | ≤0.050 | ≤0.040 | |
| 1045 | 0.43-0.50 | 0.15-0.35 | 0.6-0.9 | ≤0.050 | ≤0.040 | |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.4-0.6 | ≤0.040 | ≤0.040 | |
| 4135 | 0.32-0.39 | 0.15-0.35 | 0.6-0.9 | ≤0.040 | ≤0.040 | |
| 4140 | 0.38-0.42 | 0.15-0.35 | 0.7-1.0 | ≤0.040 | ≤0.040 |
The surface roughness shall be controlled within ra0.1, and there shall be no defects on the surface, so as to ensure that the oil leakage will not be caused at the contact part with the oil seal.
Technical parameter standard: CY hard chromium plating more than 20 microns, HV850 salt service test niss48 hours, Grade 8
Ni: 10 μ m, Cy: 15 μ m, HV800; cass32 hours, grade 9
Key words:
Air Shock Absorber
Rubber Shock Absorber buffer
Kayaba Shock Absorber
Truck Seat Shock Absorber
Motorcycle Fork Tube
Air Suspension Shock Absorber
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