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Customized Big Bore Hydraulic Cylinder Piston Rods For Pressing Machinery with ISO

Customized Big Bore

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Description

ISO Big Bore Piston Rod Hydraulic Cylinder For Pressing Machinery

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Product Specifications

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Piston?Rod | |
Size:???6-300mm |
Length:?3m?-8m? |
Material:?45#?DIN?CK45/JIS?45C |
Tolerance:?ISO?f7????? |
Chrome?thickness:?20~30micron? |
Hardness?of??the?chrome?layer:?850HV(min)?????? |
Roughness:?Ra?0.2micron?(max) |
Straightness:?0.2/1000mm |
Mechanical?properties:??(CK45/JIS?45C) |
Yield?Strength?≥320?Mpa??????? |
Tensile?Strength?≥580?Mpa???? |
Elongation?≥?15% |
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Chemical Composition:
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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 |
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Mechancial Properties:

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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 |
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Specifications

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carbide piston rods?
1.Good abrasive resistance?
2.Long service life?
3.Good heat & corrosion resistance

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Product Advantages

1, high strength and high hardness.
2, excellent hardness, wear-resistance, high elastic modulus, high flexural strength,
3, good chemical stability (acid, alkali, high temperature oxidation), impact resistance,?
4,?good toughness, low coefficient of expansion etc,



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