Low condensate hydraulic oil
Low condensate hydraulic oil
This product is low temperature hydraulic oil, cycloalkyl and part of the intermediate base for the base oil, add antioxidant, anti-wear, anti-milk, defoaming and viscosity index modifier modulation.
This product has excellent low temperature characteristic,good anti-emulsifying, anti-wear properties, Adapt to the cold area or the larger changes in the enviironment of the field operation construction machinery and special vehicle hydraulic system. and according to the kinematic viscosity 40 ℃divided into 32, 46, 68 three grades.
Quality index:
| Item | Quality Inde | Test method | ||
|---|---|---|---|---|
| 32 | 46 | 68 | ||
| Kinematic viscosity/（mm2/s） 40℃ | 28.8-35.2 | 41.4-50.6 | 61.2-74.8 | GB/T265 |
| When Kinematic viscosity to 1500mm2/s. the temperature/℃ not higher than | -18 | -12 | -6 | GB/T265 |
| Viscosity index not less than | 150 | 150 | 150 | GB/T2541 |
|
Flash point /℃ Open not lower than Closed not lower than |
160 148 |
160 148 |
160 148 |
GB/T3536 |
| Pour point /℃ not higher than | -33 | -33 | -30 | GB/T3535 |
| Air release value（50℃）/min no greater than | 8 | 10 | 12 | SH/T0308 |
| Seal adaptability index no greater than | 13 | 11 | 10 | SH/T0305 |
|
Anti-emulsification（40-37-3mL）/min 54℃ no greater than 82℃ no greater than |
30 — |
30 — |
30 — |
GB/T7305 |
|
Foam（Foam Tendency/Foam Stability）/（mL/mL） 24℃ no greater than 93.5℃ no greater than Rear24℃ no greater than |
150/10 150/10 150/10 |
GB/T12579 | ||
| Chroma/number | report | GB/T6540 | ||
| Neutral value/（mgKOH/g） | report | GB/T4945 | ||
| Moisture/% no greater than | trace | GB/T260 | ||
| Mechanical impurities/% no greater than | no | GB/T511 | ||
| Corrosion （Copper pieces,100℃,3h)grade no greater than | 1 | GB/T5096 | ||
| Sulfate ash | report | GB/T2433 | ||
|
Liquid phase corrosion Distilled water Synthetic seawater |
No rust No rust |
GB/T11143 | ||
|
Oxidation stability： a.Oxidation 1000h RearAcid value/（mgKOH/g） no greater than insolubles/mg b.Rotating oxygen bombs（150℃）/min |
2.0 |
GB/T12581 SH/T0565 SH/T0193 |
||
|
report report |
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|
Abrasion resistance a.FZG（A/8.3/90）/Failure grade not less than b.Blade pump（100h） Total weight loss/mg no greater than c.Wear diameter（ 392N,60,min,75℃,1200r/min）/mm |
10 50 |
10 50 |
10 50 |
SH/T0306 SH/T0307 SH/T0189 |
| report | ||||
|
Hydrolytic stability Copper weight loss/（mg/cm2/s） no greater than Total acidity of the water layer/（mgKOH/g） no greater than Copper appearance |
0.2 0.4 No ash, black |
SH/T0301 | ||
|
Thermal stability（135℃，168h） Copper rods lose weight/（mg/200mL） no greater than Steel bar lose weight/（mg/200mL） Total sediment weight/（mg/100mL） no greater than 40℃ Kinematic viscosity change Neutral value changes Copper bar appearance Steel bar appearance |
10 Report 100 Report Report Report Do not change color |
SH/T0209 | ||
|
Filterability/s No water no greater than 2%water no greater than |
600 1200 |
SH/T0201 | ||
| Shear stability（250times） 40℃Viscosity change/% |
10 | SH/T0103 | ||
Second, Marking, packaging, storage and transportation, delivery acceptance by SH0164-92" petroleum product packaging .storage and delivery acceptance rules".
Third, according to GB/T4756 sampling,take 2L for inspection and retention.
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