Jiangsu New Heyi Machinery Co., Ltd
Jiangsu New Heyi Machinery Co., Ltd Be the benchmark in the field of China pneumatic and hydraulic piston rod.
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HY4520 HY4700 Micro Alloy Steel Rod With Ferrite And Pearlite Structure
Product Description
1. The mechanical property of micro alloy steel rod is stable and uniform
2. Production no quenched and tempered process can greatly save the energy consumption.
3. Production no quenched and tempered process meets the requirements of environmental protection
4. Micro alloy steel rod mainly used in mechanical manufacturing for the directly turning part of shaft
and rod, ect
5. The processing period is shortened, and the productivity is enhanced and the occupied capital is
reduced..
6. The processing cost is low, there is no need of quenched and tempered process and the second
turning but the mechanical property is correspond to quenched and tempered piston rod
Detailed Description
1. MATERIAL: HY4700, HY4520
2. CHEMICAL COMPOSITION(%)
Material | C% | Mn% | Si% | S% | P% | V% | Ni | Cr% | Mo | Cu |
HY4700 | 0.38-0.45 | 1.20 ~1.60 | 0.30~0.50 | ≤0.035 | ≤0.020 | 0.05～0.15 | ≤0.25 | 0.10～0.20 | ≤0.15 | 0.25 |
HY4520 | 0.40 ~0.48 | 0.80 ~1.40 | 0.15 ~0.35 | ≤0.035 | ≤0.035 | ≤0.15 | ≤0.25 | ≤0.25 | ≤0.15 | ≤0.25 |
3. MECHANICAL PROPERTIES
Material | MECHANICAL PROPERTIES | Surface hardness(HBW) | |||||
Rm(MPa) | Rel(MPa) | A% | Z% | KU2(J) |
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HY4700 | Φ35 - Φ100 | 900 - 1100 | ≥650 | ≥16 | ≥35 | ≥39 | 270-340 |
＞Φ100 - Φ140 | 850 - 950 | ≥600 | ≥16 | ≥35 | ≥39 | 270-340 | |
HY4520 | Φ40 - Φ100 | 750 - 900 | ≥520 | ≥19 | ≥40 | ≥39 | 230-290 |
＞Φ100～Φ140 | 750 - 900 | ≥520 | ≥17 | ≥35 | ≥39 | 230-290 | |
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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. STRAIGHTNESS
≤0.2MM/M
9.OVALITY
Half of the tolerance ISO f7
10. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micron
11. CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-120hours
Results evaluation according to ISO 4540 RATING 7-10
12. WELDABILITY
Good
13.POROSITY
Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
14. PACKING
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
15. COHESION
No craks,breaking or detaching after thermic shock(warming up at 300 celsius degrees
and cooling in water)
16. CERTIFICATE
All certificate related with material heat treatment and plating is required
