Hard Chrome Rod Micro Alloy Steel With Superior Turning Performance

 
Hard Chrome Rod Micro Alloy Steel With Superior Turning Performance
 
 
Product Description
1. Low processing cost, needless quenched and tempered process and the second turning.
2. Shortened processing periods, enhance productivity and reduce the occupied capital.
3. Stable and uniform mechanical properties
4. Energy conservation: Production no quenched and tempered process greatly saves the energy
    consumption.
5. Environments protection: Production no quenched and tempered process meets the requirements of
    environmental protection.
6. It can be used for manufacturing injuection molding machine draglink, engineering machinery push
    rod and hydraulic prop with the feature that hardened and tempered steel mechanical property
    needless quenched and tempered process.
 
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. TOLERANCES ON DIA
     ISO f7 on the diameter
7.OVALITY 
    Half of the tolerance ISO f7
8. STRAIGHTNESS 
   ≤0.2MM/M
9. SURFACE ROUGHNESS
     Ra≤0.2 micron and  Rt≤2 micron
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. CORROSION RESISTANCE
     Test in natural salt spray according to ASTM B 117-120hours
     Results evaluation according to ISO 4540 RATING 7-10

13. WELDABILITY
     Good 

14.POROSITY
      Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
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