Hydraulic Cylinder Chrome Piston Rod , 20MnV6 Chrome Plated Rod
Detailed Product Description
1.Hydraulic piston rod manufacturer
2.ISO9001:2008
3.Diameter: 6mm - 1000mm
4.length: 1000mm - 8000mm
5.Ground and chrome plated
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 |
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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 |
2. MECHANICAL PROPERTIES
Material | T.S / Rm(MPa) | Y.S / Rel(MPa) | A% |
CHARPY |
CONDITION |
ck45 | 610 | 355 | 15 | >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 |
|
Material (Micro Alloy Steel) | 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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3. SUPPLY CONDITION
Ground and chrome plated
4. CHROME THICKNESS
20 to 30 micron
5. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micro
6. TOLERANCES ON DIA
ISO f7 on the diameter
7.OVALITY
Half of the tolerance ISO f7
8. STRAIGHTNESS
≤0.2MM/M
9. SURFACE HARDNESS
850-1150HV (vickers 100g)
10.COHESION
No cracks,breaking or detaching after thermic shock(warming up at
300 celsius degrees and cooling
in water)
11 .POROSITY
Test according to ISO 1456/1458 and result yaluation according to
ISO 4540 rating 8-10
12 CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-72hours
Results evaluation according to ISO 4540 RATING 7-10
13. WELDABILITY
Good
14. PACKING
Anti rust oil to be applied on material and each rod to be packed
in paper sleeve
15. CERTIFICATE
All certificate related with material heat treatment and plating is
required
We control quality strictly, from material, peeling, heat
treatment, straightening, grinding, polishing, chrome plating and
package, every process is controlled and quality is assured
Our Service Idea: Next process is customer
Excelsior to evry process
Our Target: Be the benchmark in the field of China pneumatic and
hydraulic piston rod
