Hardened Surface 20MnV6 Chrome plating Piston Rod Custom Diameter
Hardened Surface 20MnV6 Chrome Piston Rod Custom Diameter
The piston-rod material 20MnV6 hard chrome plated with the material number 1.5217 is suitable for universal use and is very tough and corrosion-resistant. Hard chrome plating means that an especially thick chrome layer is applied between pre-honing and 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.
| Item | Hard Chromed Bar | Induction Hardened Chromed Bar | Nickel and Chrome Plating Bars |
| Steel Grade | C45E (EN 10083) | C45E (EN 10083) | C45E,20MnV6/38MnVS6 |
| Tolerance | ISOf7 | ISOf7 | ISOf7 |
| Roundness | Diameter tolerance / 2 | diameter tolerance / 2 | diameter tolerance / 2 |
| Standard Length |
-for Ø ≤ 60 mm: 5600 -6200mm -for Ø≥60 mm: 5800 -7200mm Upon request: special lengths on all diameters |
- for Ø ≤ 60 mm: 5600 – 6200 mm - for Ø ≥ 60 mm: 5800 – 7200mm Upon request: special lengths on all diameters |
Up to 6000 mm
Upon request: special lengths on all diameters |
| Surface Roughness |
Ra max. 0.20 µm (statistic average: 0.05-0.15 µm) |
Ra max. 0.20 µm (statistic average: 0.05- 0.15 µm) |
Ra max. 0.20 µm (statistic average: 0.05-0.15 µm) |
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 |
|
|
|
|
|
|
|
|
|
|
- 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
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