Specifications
Brand Name :
DALLAST APT
Model Number :
Model
Certification :
TUV SGS
Place of Origin :
CHINA
MOQ :
10
Payment Terms :
T/T
Supply Ability :
1000000pcs/year
Delivery Time :
15-25 days
Packaging Details :
wood box
Material :
45# 42CrMo4 40CrMo
Neutral Salt Spray test :
NSS 300;500 hours
Type :
Hollow/Solid Rod
Surface hardness :
>HV850
NSS Testing Standing :
une-en iso9227:2017
SURFACE ROUGHNESS :
Ra≤0.2 micron and Rt≤2 micro
Application Environment :
At sea or in harsh environments
Color :
Black
Description

NSS1000 Hours 42CrMo4 Hollow Piston Rod Hard Chrome Plated Steel Bar For Hydraulic Cylinder


Hollow/Solid Rod
specificationφ3-φ12φ16-φ25φ30-φ50φ55-φ100φ105-φ120
Length200-2000200-3000200-5000200-100001000-10000


NSS
(Neutral Salt Spray test)

More than 240 hours ;
more than 360 hours;
more than 500 hours ;
more than 100 hours;

Surface hardness>860 HV0.1The straightness0.15/1000mm
Accuracyg6 grade h7 gradeHardened layer depth0.8-3mm
Roundness tolerance

<=0.01

APT thickness10um-40um
Full length tolerance

<=0.02

The materiel42CrMo4
Surface roughness


Ra 0.2- 0.4


NSS Testing Standing une-en iso9227:2017(Neutral Salt Spray test)

· 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

TUV NSS Testing Report SGS NSS Testing Report


Crafts Process Hardening Force Remove

In the whole crafts process, there are 2 times remove hardening forces: the first remove hardening force in the heat treatment process, hardening force remove is about 80%; the second remove hardening force in the surface treatment process, hardening force remove is about 90%-95%. Therefore, the piston rod is not easily deformed during use or transportation.

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
42CrMo40.38-0.450.60-0.900.15-0.400.030.03 0.90-1.20
40Cr0.37-0.450.50-0.800.17-0.37 0.80-1.10

MECHANCIAL PROPERTIES

MaterialT.S N/MM2Y.S N/MM2E%(MIN)CHARPYCONDITION
CK4561035515>41JNORMALIZE
CK4580063020>41JQ + T
ST5250035522 NORMALIZE
20MnV675059012>40JNORMALIZE
42CrMo498085014>47JQ + T
40Cr100080010 Q + T


High Accuracy Chrome Plated Steel Bar Neutral Salt Spray Test 500 Hours Hydraulic Cylinder

































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High Accuracy Chrome Plated Steel Bar Neutral Salt Spray Test 500 Hours Hydraulic Cylinder

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Brand Name :
DALLAST APT
Model Number :
Model
Certification :
TUV SGS
Place of Origin :
CHINA
MOQ :
10
Payment Terms :
T/T
Contact Supplier
High Accuracy Chrome Plated Steel Bar Neutral Salt Spray Test 500 Hours Hydraulic Cylinder
High Accuracy Chrome Plated Steel Bar Neutral Salt Spray Test 500 Hours Hydraulic Cylinder

Shenzhen Dallast Technology Co., Ltd.

Site Member
8 Years
guangdong, shenzhen
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
10000000-15000000
Employee Number :
100~1000
Certification Level :
Site Member
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