BOS Hydraulic's hollow chrome plated rods represent advanced engineering solutions combining structural efficiency with superior surface technology. Manufactured through precisely controlled cold drawing or hot rolling processes and finished with a hard chrome plating (thickness: 5-30μm), these high-precision, lightweight components are specifically engineered for high-strength, wear-resistant applications across hydraulic systems, automation equipment, and engineering machinery.
Specifications of Chrome hollow Bar
|
Material grade |
Standard system |
Characteristics |
Applicable |
|
CK45 |
DIN |
Medium carbon steel, quenched and tempered, hardness 28-32HRC, high fatigue resistance |
General mechanical transmission shaft, gearbox support shaft |
|
ST52 |
EN 10025 |
Low alloy high strength steel, yield strength ≥355MPa, good weldability |
Engineering machinery hydraulic cylinder, structural parts |
|
SAE4140 |
ASTM A322 |
Chromium-molybdenum alloy steel, strong hardenability, impact resistance + corrosion resistance |
Heavy-duty gear shaft, oil drilling equipment |
|
SCM440 |
JIS G4105 |
High hardenability, hardness ≥55HRC after high-frequency quenching |
Precision machine tool spindle, automobile steering knuckle |
|
42CrMo4 |
ISO 683-1 |
Ultra-high strength (tensile strength ≥1000MPa), high temperature creep resistance |
Wind power spindle, aerospace components |
Hollow chrome shaft vs Solid chrome shaft
Technical Parameters
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