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Quick Details

  • Classification: Chemical Auxiliary Agent
  • CAS No.: 1234-567-8
  • Other Names: Sulfurized Isobutylene
  • MF: Extreme Pressure Antiwear Additive
  • EINECS No.: 123-456-0
  • Purity: 99%
  • Place of Origin: Liaoning, China (Mainland)
  • Type: lubricant Antiwear Additive
  • Usage: Petroleum Additives
  • Brand Name: Anneng lubricant Antiwear Additive
  • Model Number: T321 lubricant Antiwear Additive
  • appearance: light yellow transparent liquid
  • Chemical component: Sulfurized Isobutylene
  • application: Gear Oil Additive
  • certificate: ISO 9000 9001
  • performance: anti-wear

Packaging & Delivery

Packaging Details lubricant Antiwear Additive is packed in 200 liter metal drum (net weight: 200kg/drum)
Delivery Time lubricant Antiwear Additive delivery time:7-14 days


Our Services

          Here ,you could see the additive enterprise with profession and integrity.

          Here, tailored products will be customized just for you.


          Here ,you will have a bunch of friends with talents and intelligence .

          No need to wait anxiously ,we will follow the direciton of the goods and offer you the report in time.

          Mass of enthusiasm and Chinese food to look forward to your visit to our factory guidance.

          A company would go together with you for your ideas.

            Because of your choosing us ,millions fo people will prefer to use and appreciate your products.

Related Products


Extreme Pressure Anti-wear Additives

Product No.

Chemical Name




Bis Nitrogenous Thiophosphoric Derivative


Tricresyl Phosphate


Thiophosphoric Acid Diester Amine Salt


Triphenyl Thiophosphate


Sulfurized Isobutylene


Extreme Pressure Antiwear Additive T321

Sulfurized Isobutylene/SIB



Product Description


T321 is an extremely effective EP antiwear additive and deemed as main component in today’s gear oils. With high content of Sulfur, T321 could provide the oils with excellent EP and load-carrying properties. It is useful in protecting equipment under shock-load conditions and working surfaces which experience high loads. T321 has good oil solubility, light color, less corrosion for the metals and fine compatibilities with the compounds containing phosphorus. T321 can be widely used for formulating middle-grade and top-grade automotive gear oils and industrial gear oils, the metal processing oils, drilling machine oils, etc.As T321 is an excellent source of controlled activity sulfur. It could be used in lubricating grease applications where EP and load-carrying capabilities are required.


Key Performance Benefits

Excellent EP antiwear performance

High sulfur content

Low reactivity to copper

Less corrosion for the metals

Fine compatibilities with the compounds


Excellent booster for FZG, Four ball and other EP tests



Used in automotive gear oils and industrial gear oils, the metal processing oils, drilling machine oils, lubricating grease, etc.Its recommended dosage is 1.5-5.0%.



ItemTypical ValueTest Method
Flash Point (COC), °C≥100ASTM D92
Sulfur, m%40-46ASTM D129
Cu-strip Corrosion (121°C, 3h), rating≤3ASTM D130
Four Ball Test,PB(N)780ASTM D2783
Four Ball Test,PD(N)3920ASTM D2783


The related products Anneng could offer several classes of EP Antiwear Additives to meet your needs.

1.Chlorinated Paraffin T301 

2.Di-n-butyl-phosphite T304 

3.Derivative of Thiophosphoric Acid with N T305 

4. Tricresyl Phosphate T306     

5. Triphenyl thiophosphate T309

6. Sulfurized Isobutylene T321




Packaging & Shipping

 Packing:200 liter metal drum (net weight: 200kg/drum)

Shelf Life: 2 years,stored in dry, clean and well ventilated warehouses,lower than 55°C.



Company Information







Q: how do you control your product quality?


A: all of our products have to go through 5 check in the whole producing process make sure the quality strictly comply with TDS we offered for you. SGS is supported as well.


Q: What is the time of delivery ?


A: Usually within 7 working days for one 20 foot container.


3.What kind of package do you supply?


   200L metal drum         Flexibag                 IBC(Tons of barrels)          ISO-ANKT


Q: what’ your advantage? why choose you as my supplier?


1/with twenty years experiences in this field, our products have been exporting to many overseas markets successfully with fantastic feedback.

2/ we have professional engineers with rich experience. we could offer tailored products according to your specific technical parameters of products.

3/we have our own lab and factory with fully automatic equipments, clients could supervise the producing process of order items.


Q: Can I get the free sample?  


A: Yes!  200ml free sample could be offered for your test.


Q: How to get the free sample?


A: the sample will be ready for delivery in 3 days by air after receiving your courier cost or your freight collect express number.



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