Chrome Piston Rod made from CK45 20MnV6 42CrMo4 SUS304 SUS316 steel bars with precision f7 tolerance and surface hardness min HV900

Description:

The piston rod is a common component in the field of mechanical engineering. It is usually used in conjunction with the piston to transform the reciprocating motion into rotating motion or other forms of motion.
Piston rods are generally made of high-quality alloy steel or stainless steel to ensure strength, wear resistance and corrosion resistance.
The material we usually is CK45, 42CrMo and ST52, and the common plate is chrome, and some customers need nickel and ceramic.

1. Chemical Composition:

2. Mechancial Properties:

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.