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AISI4140 CK45 Hard Chrome Plated Rod Hydraulic Cylinder Rod Detailed Product Description Material: CK45, SAE1045, 4140, 4340, JIS45C, 40Cr, 42CrMo Diameter: Φ 6-500 mm Length: max 16m Chrome layer: 20 microns (min) The hardness of the chrome layer: 800HV-1150HV Roughness: Ra ≤0.2u Straightness: ≤ 0.2/1000 Diameter tolerance: ISO f7 Roundness: the deviation of roundness is 50% of the diameter tolerance at the most. Supply condition: Hard chrome plated/ Hardened and tempered/
AISI4140 CK45 Hard Chrome Plated Rod Hydraulic Cylinder Rod
Detailed Product Description
Detailed Description
1. CHEMICAL COMPOSITION
|
Material |
C% |
Mn% |
Si% |
S% |
P% |
V% |
Cr% |
|
Ck45 |
0.42-0.50 |
0.50-0.80 |
0.04 |
0.035 |
0.035 |
|
|
|
ST52 |
0.22 |
1.6 |
0.55 |
0.035 |
0.04 |
|
|
|
20MnV6 |
0.16-0.22 |
1.30-1.70 |
0.10-0.50 |
0.035 |
0.035 |
0.10-0.20 |
|
|
42CrMo4 |
0.38-0.45 |
0.60-0.90 |
0.15-0.40 |
0.03 |
0.03 |
|
0.90-1.20 |
|
40Cr |
0.37-0.45 |
0.50-0.80 |
0.17-0.37 |
|
|
|
0.80-1.10 |
2.MECHANCIAL PROPERTIES
|
Material |
T.S N/MM2 |
Y.S N/MM2 |
E%(MIN) |
CHARPY |
CONDITION |
|
CK45 |
610 |
355 |
15 |
>41J |
NORMALIZE |
|
CK45 |
800 |
630 |
20 |
>41J |
Q + T |
|
ST52 |
500 |
355 |
22 |
|
NORMALIZE |
|
20MnV6 |
750 |
590 |
12 |
>40J |
NORMALIZE |
|
42CrMo4 |
980 |
850 |
14 |
>47J |
Q + T |
|
40Cr |
1000 |
800 |
10 |
|
Q + T |
3. SUPPLY CONDITION
Ground and chrome plated
4. CHROME THICKNESS
20 to 30 micron
5. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micro
6. TOLERANCES ON DIA
ISO f7 on the diameter
7.OVALITY
Half of the tolerance ISO f7
8. STRAIGHTNESS
≤0.2MM/M
9. SURFACE HARDNESS
850-1150HV (vickers 100g)
10.COHESION
No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling
in water)
11 .POROSITY
Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
12 CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-72hours
Results evaluation according to ISO 4540 RATING 7-10
13. WELDABILITY
Good
14. PACKING
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
15. CERTIFICATE
All certificate related with material heat treatment and plating is required
Our service idea: Devoted to both benefits is our persistent style, Satisfy clients’ needs is our eternal pursue
Heyi target: be the benchmark in the field of China pneumatic and hydraulic piston rod
