Corrosion Resistance 42CrMo4 Chrome Piston Rod Custom Diameter
The piston rod material 42CrMo4V hardened and hard chrome plated with the material number 1.7225 is suitable for heavy use and is especially wear-resistant thanks to its hardened surface layer with a surface hardness of 56–64 HRC. Due to the material's high stability very high forces can be transmitted, e.g. for small connecting threads with large piston rods. Hard chrome plating means that an especially thick chrome layer is applied after the pre-honing and before finishing the honing process. The layer thickness depends on the rod diameter and has a hardness of more than 800 HV. Hard chrome plated piston rods can be used between -15°C and 200°C.
Chrome Piston Rod Features
The Hard Chrome Plated Piston Rods are fabricated using optimum quality raw material and latest machinery. The bars undergo rigorous processes like pilling, straightening, grinding, polishing, hard chrome plating, and finishing under the supervision of experienced engineers.
Hard Chrome Plated Piston Rods are widely used in hydraulic and pneumatic cylinder, printing machinery, textile machinery, engineering machinery, woodworking machinery, etc. Our products are highly appreciated by our clients for their features like corrosion resistance, robust construction, elevated durability, high tensile strength and mirror-like surface.
Chrome Piston Rod Description
1. Material: CK45, ST52, 20MnV6, 42CrMo4, 40Cr, HY4520, HY4700
2. ISO9001:2008
3. Yield strength: Not less than 355 MPa
4. Tensile strength: Not less than 610 MPa
5. Completed manufactured equipment, Advanced inspection apparatus
6. Application: Mining machinery industry, textile/printing industry, and so on
Chrome Piston Rod Detailed Description
1. CHEMICAL COMPOSITION(%)
| Material | C% | Mn% | Si% | S% | P% | V% | Ni | Cr% | Mo | Cu |
| ck45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | | ≤0.25 | ≤0.25 | | ≤0.25 |
| ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | 0.02-0.15 | | | | |
| 20MnV6 | 0.17-0.24 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | 0.035 | 0.10-0.20 | ≤0.30 | ≤0.30 | | ≤0.30 |
| 42CrMo | 0.38-0.45 | 0.5-0.8 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.07-0.12 | ≤0.03 | 0.90-1.20 | 0.15-0.25 | ≤0.03 |
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | | ≤0.3 | 0.80-1.1 | | ≤0.03 |
| HY4700 | 0.38-0.45 | 1.20 ~1.60 | 0.30~0.50 | ≤0.035 | ≤0.020 | 0.05～0.15 | ≤0.25 | 0.10～0.20 | ≤0.15 | 0.25 |
| HY4520 | 0.40 ~0.48 | 0.80 ~1.40 | 0.15 ~0.35 | ≤0.035 | ≤0.035 | ≤0.15 | ≤0.25 | ≤0.25 | ≤0.15 | ≤0.25 |
Chrome Piston Rod MECHANICAL PROPERTIES
| Material | T.S / Rm(MPa) | Y.S / Rel(MPa) | A% | CHARPY | CONDITION |
| ck45 | 610 | 355 | 16 | >41J | Normalized |
| ck45 | 800 | 540 | 20 | >41J | Q+T |
| ST52 | 500 | 355 | 22 | | Normalized |
| 20MnV6 | 750 | 590 | 12 | >40J | Normalized |
| 42CrMo4 | 980 | 850 | 14 | >47J | Q+T |
| 40Cr | 1000 | 800 | 10 | | Q+T |
Chrome Piston Rod MICRO ALLOY STEEL
| Material | MECHANICAL PROPERTIES | Surface hardness(HBW) |
| Rm(MPa) | Rel(MPa) | A% | Z% | KU2(J) | |
| HY4700 | Φ35 - Φ100 | 900 - 1100 | ≥650 | ≥16 | ≥35 | ≥39 | 270-340 |
| ＞Φ100 - Φ140 | 850 - 950 | ≥600 | ≥16 | ≥35 | ≥39 | 270-340 |
| HY4520 | Φ40 - Φ100 | 750 - 900 | ≥520 | ≥19 | ≥40 | ≥39 | 230-290 |
| ＞Φ100～Φ140 | 750 - 900 | ≥520 | ≥17 | ≥35 | ≥39 | 230-290 |
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- SUPPLY CONDITION Ground and chrome plated
- CHROME THICKNESS 20 to 30 micron
- SURFACE ROUGHNESS Ra≤0.2 micron and Rt≤2 micron
- TOLERANCES ON DIA ISO f7 on the diameter
- Quality Half of the tolerance ISO f7
- STRAIGHTNESS ≤0.2MM/M
- SURFACE HARDNESS 850-1150HV (vickers 100g)
- COHESION No cracks, breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling in water)
- CORROSION RESISTANCE Test in natural salt spray according to ASTM B 117-120hours Results evaluation according to ISO 4540 RATING 7-10
- POROSITY Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
- WELDABILITY Good
- PACKING Anti rust oil to be applied on material and each rod to be packed in paper sleeve
- CERTIFICATE All certificate related with material heat treatment and plating is required
Meeting clients' requirements is our forever goal.
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