Piston Hollow Chrome Plated Rod Bar NSS 500 Hours 42CrMo 45# For Single Acting Hydraulic Ram

Brand Name:DALLAST ATP
Certification:SGS TUV
Model Number:Model
Minimum Order Quantity:1
Delivery Time:15-25DAYS
Payment Terms:T/T
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Location: Shenzhen Guangdong China
Address: 1435-1436,area C,building B,Qinghu science park,Longhua District, Shenzhen city,Guangdong province,China
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Product Details

42CrMo Hydraulic Cylinder Piston Hollow Rods Hard Chrome Plated Steel Bar NSS 500 Hours


NSS Testing Standing une-en iso9227:2017


· Sal solution: 50 (+/- 5) g/l of NaCl. Water is demineralized and salt purity is 99.5%.

· Environmental temperature: 35 °C.

· pH of salt solution is 6.8.

· Volumen of salt solution is 38.4 ml/day.

· Density of salt solution is 1,030 g/cm3.

· Spraying is 1.5 (+/- 0.5) ml/h.

Test Result :NSS can endure 300 hours ;500 hours; 800 hours


SGS NSS Testing Report TUV NSSTesting Repopt


Heat treatment

1.Quenching with fire about 860 °C, placed in furnace box

2. After quenching, put into the oil tank to cool from the box furnace

3. After cooling, the first time tempering: tempered at 640 °C and the hardness is controlled at about HRC28-32, the first time tempering cooling is used Water-cooled.

4. Straightening: The outer circle is controlled by 200 um(0.2mm) ;

straightening equipment:

three-roller straightening machine;

hydraulic straightening machine (multipoint straightening)

5. The second tempering removes the hard force, the temperature is about 480 °C, and Keep warm for 2 -2.5hours ; release 80% more or less


CHEMICAL COMPOSITION


MaterialC%Mn%Si%S%P%V%Cr%
Ck450.42-0.500.50-0.800.040.0350.035
ST520.221.60.550.0350.04
20MnV60.16-0.221.30-1.700.10-0.500.0350.0350.10-0.20
42CrMo40.38-0.450.60-0.900.15-0.400.030.030.90-1.20
40Cr0.37-0.450.50-0.800.17-0.370.80-1.10

MECHANCIAL PROPERTIES

MaterialT.S N/MM2Y.S N/MM2E%(MIN)CHARPYCONDITION
CK4561035515>41JNORMALIZE
CK4580063020>41JQ + T
ST5250035522NORMALIZE
20MnV675059012>40JNORMALIZE
42CrMo498085014>47JQ + T
40Cr100080010Q + T

Company Profile :


Dallast Technology Co., Ltd is a leading professional manufacturer of hydraulic cylinder more than 15 years, we are specializing in developing, designing, manufacturing, sales and after sales service of hydraulic cylinder, not only the standard but also OEM products. In order to provide better products to our customers, we make a huge investment to introduce our advanced hydraulic technology at home and abroad, such as CNC machine, automatic cylinder welding equipment, cylinder turning center, plasma cutting machine etc.


China Piston Hollow Chrome Plated Rod Bar NSS 500 Hours 42CrMo 45# For Single Acting Hydraulic Ram supplier

Piston Hollow Chrome Plated Rod Bar NSS 500 Hours 42CrMo 45# For Single Acting Hydraulic Ram

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