Diameter 35 - 140mm Micro Alloy Steel Piston Rods With Environmental Protection

 
 
Diameter 35 - 140mm Micro Alloy Steel Piston Rods With Environmental Protection
 
 
Product Description
1. Save manufacturing expenses and avoid waste in the tempering process
2. Shortened processing periods, enhance productivity and reduce the occupied capital.
3. The mechanical property is correspond to quenched and tempered 42CrMo4, 40Cr and CK45 or over
    them and very uniform on the whole cross section.
4. Turning performance: Turning performance is commensurate to 42CrMo4, 40Cr and CK45 or be
    superior to them.
5. Hardness: Hardness is more uniform on the whole cross section than quenched and tempered
    42CrMo4, 40Cr and CK45.
6. Mainly used in mechanical manufacturing for the directly turning part of shaft and rod, ect.
 
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 .SURFACE HARDNESS 
     850-1150HV (vickers 100g)
8.OVALITY 
    Half of the tolerance ISO f7
9. STRAIGHTNESS 
   ≤0.2MM/M
10. SURFACE ROUGHNESS
     Ra≤0.2 micron and  Rt≤2 micron
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.POROSITY
      Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10

14. WELDABILITY
     Good 
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