Microalloyed Steels Chrome Rod For Hydraulic Cylinders With Energy Conservation


Product Description
1. Environments protection: Production no quenched and tempered process meets the requirements of
environmental protection.
2. Energy conservation: Production no quenched and tempered process greatly saves the energy
consumption.
3. The micro alloy steel products are developed on the basis of the proprietary technology of the control
rolling and cooling for substituting quenched and tempered 42CrMo4, 40Cr and CK45 with a variety of
mechanical performance requirements.
4. It is mainly used in mechanical manufacturing for the directly turning part of shaft and rod, etc
5. Stable and uniform mechanical properties.
6. Save manufacturing expenses and avoid waste in the tempering 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. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micron
7. TOLERANCES ON DIA
ISO f7 on the diameter
8 .SURFACE HARDNESS
850-1150HV (vickers 100g)
9. STRAIGHTNESS
≤0.2MM/M
10.OVALITY
Half of the tolerance ISO f7
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. CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-120hours
Results evaluation according to ISO 4540 RATING 7-10

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