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Gear Oil Additive Package
Sulfurized Isobutylene SDT321
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Gear Oil Additive Package
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Sulfurized Isobutylene SDT321

Properties and Applications
Sulfurized isobutylene, as yellow oily transparent liquid, has strong extreme pressure properties, good oil solubility, low corrosion and little usage, and is widely used for gear oil, metal processing oil, antiwear hydraulic oil and lubricating grease.
Molecular formula: C8H16S3
Molecular weight: 208.39
Specific gravity d420: 1.1~1.2

Features
1. Sulfurized isobutylene is produced by adopting advanced, reasonable and mature production technology, and independently develops sulfurized isobutylene products with different grades.
2. By conducting strict quality monitoring on raw material and entire production process and can produce as many as 30 test items in the production link, fully ensuring product quality.
3. The product is not added with base oil, so it is honored as “original ecology” product.
4. Complete and effective environmental supporting facilities have been completed, laying a solid foundation for stability and development of the company and sulfurized isobutylene products.
5. The product is exported to Middle East, Europe and America, obtaining wide market recognition.

Grades: SDT321 universal sulfurized isobutylene accords with SH0664-1998 321 Extreme Pressure Additive Standard.

Packaging and Storage
1. Packaged by 1.2 galvanizing barrel, net weight 200±0.5g.
2. Stored in a cool and dry place, fireproof, moistureproof, sunscreen, screw the barrel lid (avoid contact with air).
3. Prohibit direct stacking with metal and hard object during transport or mixing with corrosive object.

 

SH0664-1998 universal implementation of the company in the industry SDT321 Extreme Pressure Additive Standard on the basis of improved quality requirements, developed a vulcanizing isobutylene enterprise standard higher than the current standard.

1. Q/GD2012-001 SDT321 Extreme Pressure Additive (Universal) Standard

Item

SH0664-1998 Standard

The Enterprise Standard

Test method

 Appearance

Orange ~ Amber transparent liquid

Light yellow transparent liquid

Visual test

 Moisture.%(V/V)  

0.03

0.02

GB6238-86

 Mechanical impurity. %(m/m) ≤

0.05

0.02

GB/T511

 Flash point (opening), ºC ≥

100

110

GB/T3536

 Kinematic viscosity(100),mm2/s

5.58.00

58

GB/T265

 Density(20).kgm3

11001200

11001200

GB/T13377

 Oil solubility

Transparent and no sediment

Transparent and no sediment

Visual test(1)

 Low-temperature stability(-202h)

 

Transparent and no sediment

Visual test

 Sulfur content,% (m/m)

40.046.0

4245

SH/T0303(2)

 Chlorine content,% (m/m) ≤

0.4

0.25

SH/T0161

 Copper sheet corrosion(1213hgrade) ≤

3

2

GB/T5096(3)

 Four-ball machine test
 PDN  

4900

4900

GB/T3142(3)

 15%(m/m)SDT321+95%(m/m) base oil [60%(m/m)HVI150BS+40%(m/m)HVI500]Stir at room temperature (20 ° C), visual inspection should be transparent without precipitation.
 2SDT321 sulfur content can be measured by SH/T0303 or other test methods.
 35%(m/m)SDT321+95%(m/m) base oil [60%(m/m)HVI150BS+40%(m/m)HVI500]

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