SAE8640 40CrNiMoA Hot Rolled Alloy Steel Round Bars

SAE8640/40CrNiMoA Very hot rolled alloy metal round bars

About us

HangCZPT Highleader CZPT Source Chain Co., Ltd. established in 2012, situated in HangCZPT CZPT,
ZheJiang , China.   HangCZPT Highleader CZPT Supply Chain Co., Ltd. is a complete
company who specializes in metal merchandise processing and buying and selling. Considering that the company started,
has been fully commited to buying and selling metal merchandise including steel billets, tube billets, steel spherical bar
and square bar,metal pipe,profile steel etc.In the further improvement and desire of the industry,
our comapny spend a lot more power in additional processing steel products with a lot more technicial,  to
fulfill the market demand and encourage comapny development.

In 2016, we established our very own steel processing centre, created cold drawn, annealing, normalizing,
quenching&tempering manufacturing line and peeling, grinding, chamfering finishing line. Set up entire
sets tests and inspecting equipments, to make sure the items good quality security and typical. Consider
edge of our strong creation potential,to meet customer’s personalized and expert

1. Chemical composition 

Materials Chemical Composition (%)
  C Si Mn S P Cr Mo Ni
8640 .37-.forty four .17-.37 .six-.eight ≤0.571 ≤0.571 .six-.nine .15-.25 1.25-one.65

Mill Certification


 – Substantial energy shafts
 – Punches & dies
 – Drill bushings
 – Retaining rings
 – Gears

four.Packing & Loading

Contact Us

Q: Are you trading company or manufacturer 
A: We have our own factory with complete production equipment and inspection facilities
also doing steel bars trading.

Q: How long is your delivery time?
A: CZPTly it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not 
in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free of charge but do not pay the cost of freight.

Q: What is your terms of payment ?
A: Amount=ten,000USD, 30% T/T in advance,
balance before shipment.
If you have another question, please feel free to contact us .

SAE8640 40CrNiMoA Hot Rolled Alloy Steel Round Bars