Non - Quenched And Tempered Steel Hydraulic Cylinder Rod Chrome Plated

Non - Quenched And Tempered Steel Hydraulic Cylinder Rod Chrome Plated
 
 
Product Description
1. Non-quenched and tempered steel products is used in mechanical manufacturing for the directly

    turning part of shaft and rod, ect.
2. Save manufacturing expenses and avoid waste in the tempering process.
3. Shortened processing periods, enhance productivity and reduce the occupied capital.
4. Low processing cost, needless quenched and tempered process and the second turning.

5. The steel directly turning saves the logistics cost.

6. Stable and uniform mechanical properties.
 
 
Detailed Description
 
1. MATERIAL: HY4700, HY4520
 
2. CHEMICAL COMPOSITION(%)

 
 
3. MECHANICAL PROPERTIES
 

 
 
4. SUPPLY CONDITION 
    Ground  and  chrome plated  
5. CHROME THICKNESS
     20 to 30 micron
6. SURFACE ROUGHNESS
     Ra≤0.2 micron and  Rt≤2 micron

7. TOLERANCES ON DIA
     ISO f7 on the diameter 
8.OVALITY 
    Half of the tolerance ISO f7
9. STRAIGHTNESS 
   ≤0.2MM/M
10 .SURFACE HARDNESS 
     850-1150HV (vickers 100g)
11. COHESION 

     No craks,breaking or detaching after thermic shock(warming up at 300 celsius degrees

    and cooling in water)
12 .POROSITY
      Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
13. WELDABILITY
     Good 
14. CORROSION RESISTANCE
     Test in natural salt spray according to ASTM B 117-120hours
     Results evaluation according to ISO 4540 RATING 7-10
15. PACKING 
     Anti rust oil to be applied on material and each rod to be packed in paper sleeve
16. CERTIFICATE 
      All certificate related with material heat treatment and plating is required