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F7 Tolerance Hard Chrome Piston Rod for Engineering Use

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Peeling and Polished Chrome Piston Rods for OEM Cylinders

Hard chrome plated piston rod was made by black round steel bar, through peeling, centerless grinding, polishing, chrome plate, polishing process.
Products meet international standard demands.

Size:	Φ 6-500mm
Tolerance:	ISO f7
Length:	4m, 5.8m, 6m, 7.5m, 12m, 14m can be choose
Roughness:	max. Ra0.20µm (statistic average: 0.05 - 0.15µm)
Straightness:	<= 0.2/1000
Roundness:	Half of the tolerance ISO f7
Chrome Thickness:	20-80µm
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Product Description

This piston rod is made by peeling and polishing black steel, followed by hard chrome plating.

With Ra0.20μm surface finish and f7 tolerance,

it ensures long-term durability and is widely used in OEM hydraulic cylinder production.

Features:

1. High precision.

2. Made by best raw material.

3. Quality stable and uniformity.

4. Better packing protection.

5. Perfect after-sales service

Hard Chrome Plated Piston Rod:

Steel Grade	CK45, SAE1045, 4140, 4340, JIS45C, 40Cr, 20MnV6, 42CrMo4, SUS304/316 Duplex 2205, etc.
Diameter	Φ 6-500mm
Tolerance	ISO f7
Length	4m, 5.8m, 6m, 7.5m, 12m, 14m can be choose
Roughness	max. Ra0.20µm (statistic average: 0.05 - 0.15µm)
Straightness	<= 0.2/1000
Roundness	Half of the tolerance ISO f7
Hardness based on Delivery condition	Normal chrome rod (HRC 15-22) Q+T chrome rod (HRC 28-35) Induction Hardened chrome rod (HRC 55+/-2) Q+T and Induction hardened chrome rod (HRC 55+/-2)
Chrome Thickness	20-80µm
Chrome Hardness	min. 900 HV (0.1)
Declaration of conformity	According to EN 10083-2 Test in natural salt spray according to ASTM B 17 (96/120/150/200H).
Packing	Oil soaked, carton pipe sheathed, cotton rope twined, bubble film packaged.