Hot Rolled Hollow Piston Rod Precision Steel Shaft for Hydraulic Engine

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Hot Rolled Hollow Piston Rod Precision Steel Shaft for Hydraulic Engine DetailedProductDescription 1. Material: CK45, ST52, 20MnV6, 42CrMo4, 40Cr 2. Tensile strength: Not less than 610 N/MM2 3. Yield strength: Not less than 355 N/MM2 4. Advanced inspection apparatus 5. Complete manufactured equipments DetailedDescription 1.CHEMICALCOMPOSITION - - - - 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.MECHANCIALPROPERTIES - - - - Material | T.SN/MM2 | Y.SN/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.SUPPLYCONDITION Groundandchromeplated 4.CHROMETHICKNESS 20to30micron 5.SURFACEROUGHNESS Ra0.2micronandRt2micro 6.TOLERANCESONDIA ISOf7onthediameter 7.OVALITY HalfofthetoleranceISOf7 8.STRAIGHTNESS 0.2MM/M 9.SURFACEHARDNESS 850-1150HV(vickers100g) 10.COHESION Nocracks,breakingordetachingafterthermicshock(warmingupat300celsiusdegreesandcooling inwater) 11.POROSITY TestaccordingtoISO1456/1458andresultyaluationaccordingtoISO4540rating8-10 12CORROSIONRESISTANCE TestinnaturalsaltsprayaccordingtoASTMB117-72hours ResultsevaluationaccordingtoISO4540RATING7-10 13.WELDABILITY Good 14.PACKING Antirustoiltobeappliedonmaterialandeachrodtobepackedinpapersleeve 15.CERTIFICATE Allcertificaterelatedwithmaterialheattreatmentandplatingisrequired

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Jiangsu New Heyi Machinery Co., Ltd

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