Hard Chrome Plated Shafts /Chrome Plated Bar with material CK45, SAE 1045, 4140 for Hydraulic Pistion Rod
Hard chrome plated shafts are known as Chrome plated rods or chrome plated bar also, they are usually used to manufacturing or repairing the hydraulic piston shafts. This product is widely used for most piston shaft applications in hydraulic and pneumatic cylinders.
Our hard chrome plated shafts are manufactured from round steel bar through high precision polishing, and chrome plated with a certain thickness, the thickness of chrome plated layer is usually min. 20 microns.
Detailed Product Description
Materials:
As the leading chrome plated bar supplier, our factory can produce chrome plated shafts in wide range of materials as carbon steel and stainless steels. The most popular steel grades of carbon steel chrome plated shafts are JIS S45C, SAE1045, AISI 1045 / 1050, DIN CK45.
Size range:
We can manufacture hard chrome plated shafts with size range from external diameter 6 mm to 800 mm.
We supply both metric size chrome plated shafts and imperial sizes chrome plated bar.
Packing:
Our chrome plated shafts usually is packed with plastic sleeves or paper tubes. Also we can provide packing method of wooden cases on customers’ requests.
Chrome plated thickness
The thickness of the chrome plated layer can be 10 microns to 50 microns. And the most popular requirements is that the chrome layer of the chrome plated shaft is min. 20 microns.
Applications
Chrome plated shafts are usually used together with honed tubes for manufacturing or repairing the hydraulic cylinders or pneumatic cylinders. Beside this, the chrome plated rods also are widely used as shafts of various machines, where high precision and high smooth surface is required.
As the high quality China honed tube & chrome plated bar manufacturer, our factory also produces honed tubes and chrome plated hollow bars,
our products are exported to customers in many countries abroad, and gained very good reputation in the field.
Detailed Description
1.CHEMICAL COMPOSITION
| Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
| Ck45 | 0.42-0.50 | 0.50-0.80 | 0.04 | 0.035 | 0.035 | ||
| ST52 | 0.22 | 1.6 | 0.55 | 0.035 | 0.04 | ||
| 20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | 0.035 | 0.035 | 0.10-0.20 | |
| 42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | 0.03 | 0.03 | 0.90-1.20 | |
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | 0.80-1.10 |
2.MECHANCIAL PROPERTIES
| Material | T.S N/MM2 | Y.S N/MM2 | E%(MIN) | CHARPY | CONDITION |
| CK45 | 610 | 355 | 15 | >41J | NORMALIZE |
| CK45 | 800 | 630 | 20 | >41J | Q + T |
| ST52 | 500 | 355 | 22 | NORMALIZE | |
| 20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE |
| 42CrMo4 | 980 | 850 | 14 | >47J | Q + T |
| 40Cr | 1000 | 800 | 10 | Q + T |
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.
From 2017, we established an intelligent workshop with all automatic machined. There are five lines only for producing exported products. The new workshop is executing 6S strictly. The production capacity will be 1500 tons per month.
