• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Standard: ASTM, AISI, DIN, EN, GB, JIS
  • Dimensions: Dia 50mm-1500mm
  • Grade: 400 Series
  • Place of Origin: Hubei, China (Mainland)
  • Brand Name: Unite Steel
  • Model Number: Hot Forged round bar
  • Type: Round
  • Shape: Round
  • Certification: ISO
  • Process: EAF+LF+VD+Forged or Rolled+Heat Treatment(optional)
  • Test: Ultrasonic test according to SEP 1921-84 C/c

Packaging & Delivery

Packaging Details Seaworthy Package



Moulds for corrosive plastic materials such as PVC, recycled polymers etc., moulds for chemically aggressive plastics and plastics containing abrasive fillers, mould inserts, dies and gauges for PVC extrusions, screws and barrels for extruders, moulds for automotive, food, medical and optical industry such as spectacles, compact discs, lenses.




Germany       DIN X40Cr13

                        Wr.N 1.2083       

USA          ASTM 420

France        AFNOR Z40C14

Russia       GOST 40Ch13

Japan        JIS SUS420/420J2  


Chemical Composition (%): 

Carbon       0.36-0.45 

Silicon        0.60 max  

Manganese    0.80 max

Phosphorus    0.035 max 

Sulphur       0.030 max 

Chromium    12.50-14.50

 Nickel       0.60 max 


Process:  EAF+LF+VOD+Forged Treatment(optional)




Hot Forged:  50mm-1500mm 


Hot forged: Thickness:50-600mm Width: up to 1600mm 



Black, Turned & Grinded


Test: Ultrasonic test according to SEP 1921-84 C/c


Heat Treatment

ANNEALING: heat to750-800°C, with hold at minimum rate for 3 hours;
Furnace cooling.
Stress relieving:
To be carried out after machining and before the final heat treatment,
-Heating to600-650°C , for 2 hours ;
Hardening ;
-preheating to 600-700°C;
-Austenitizing at 990-1040°C;
-Cooling in fluid oil, thermal bath at 500-550°C and finally in oil,considering the steel shape and size.
Quenched hardness52-56HRC
To be carried out after the hardening according to the required hardness; at 170-270°C in order to match hardness and resistance to corrosion; permanence for at least 2 hours;
Tempering must be repeatedat least twice at a temperature 30°C lower than the previous. Cooling in air.


Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property yield strength, tensile strength, elongation and hardness, forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.


Marking: Heat No. will be cold stamped and Steel grade, diameter mm, length mm, and  the manufacturer LOGO and weight kg is painted.



Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $56,000
Learn More