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Quick Details

  • Grade: Alloy Steel 4Cr13, 4Cr13 Forged Flat Bar
  • Standard: AISI, ASTM, BS, DIN, GB, JIS
  • Thickness: 20-500mm
  • Width: 200-810mm
  • Length: Request
  • Place of Origin: Hubei, China (Mainland)
  • Brand Name: Kangheng
  • Model Number: 4Cr13
  • Application: Tool Steel
  • Technique: Forged
  • Special Use: Mold Steel
  • Product Name: Plastic steel mould alloy flat bar tool steel 4Cr13
  • Surface treatment: Black/Grinded/Machined/Turned
  • Production route: EF/EAF+LF+VD/ESR
  • Quality inspection: UT, Chemical test, Microstructure, Physical properties etc.
  • UT test standard: SEP1921-84 class3 C/c to D/d
  • Service: 24 Hours Online and Free Sample
  • Certification: ISO9001
  • Delivery Condition: Hot forged or Rough machined
  • Heat Treatment: Annealed/Quenching/Tempering

Packaging & Delivery

Packaging Details All products are in standard seaworthy packing, steel wire and steel strips bundled. For black surface products, they are covered with tarps, then tightened by scotch tape. For machined products, they are coated with anti-rust oil first, then covered by plastic film, finally is covered with tarps and tightened by scotch tape.
Delivery Time Shipped in 45-60 days after payment

                         Plastic steel mould alloy flat bar tool steel 4Cr13


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                      Plastic steel mould alloy flat bar tool steel 4Cr13







Product Description


Steel Type
4Cr131.2083420SUS 420M303S136



Chemical Composition  



Size of 4Cr13  (Can be Customised)  
Round BarDiameter(mm)Hot Forged: φ30-500Length(mm):2000-5800
Hot Rolled:≤30
Steel Plate Thickness(mm)Hot Forged:≥20Width(mm):200-810 
Hot Rolled:≤20



Round BarBlack SurfacePeeled SurfaceTurned Surface
 -0/+5mm -0/+3mm-0/+2mm
Steel Plate Black SurfaceMachined Surface
 Thickness: -0/+5mm


Products Details




GB 4CR13/W-Nr 1.2083/AISI 420/JIS SUS420/BOHLER M303/ Ss14 S136
   1.Good anti-rusty capacity;
   2.Good polishing capacity;
   3.Super intensity and wearable capacity.
   Used in corrosion resistance, wear resistance of high quality plastic mould.




(1) Payment: 1.By confirmed, 100% valum irrevocable, letter of credit without recourse, Allowing  partial 

                      shipment and transhipment, payable at sight presentation of shipping.

                      2.By T/T payment: 30% payment in deposited, 70% payment before shipment.
(2) Delivery Time : 45 days after received the buyer's L/C or T/T deposite payment.              
(3) Delivery Port : Wuhan/Shanghai/Tianjin
(4) Process: Electric furnace melted, forged and annealed, round bar turned, flat bar machined.
(5) Hardness: Annealed  HBS 229 MAX / Q + T 31-35 HRC.
(6) UT Test: SEP 1921/84/2  C/c class.
(7) Allowance on quantity/weight: -/+ 10% per item.
(8) Package: Seaworthy Packing.
Products Process


Quality Control


Packing and Shipping


Company Information

Our company mainly specializes in producing, machining and exporting special steels, including Cold Work Die SteelHot Work Die SteelPlastic Mould SteelHigh Speed Mould Steel and other alloy steels. We have various production facilities and testing equipments, like: EAF+LF+VD Furnaces, ESR furnaces,Hydraulic forging hammers, Rolling equipments, Annealing furnace, Q+T facilities, grinding/milling/lathes machines and chemical /physical analysis test equipment etc. Our products have been recognized by ISO 9001 International Quality System. We can produce products according to International standard and customer's requirements.




1.Why do you choose us?

We have excellent quality, competitive price and the best service.

Free samples, real-time production process, guaranteed delivery time, trade assurance service.


2.Why can you rely on us for quality product? 

Advanced equipment, professional staff, and strict technique supervision.

We have passed the certificate of ISO 9001 system.


3.How about the price? 

Working with us, you can lower your cost and beat your competitors.

Quanlity and special discount. 


4.What about the delivery time? 

Usually, the products will be delivered in about 45 days after received the deposit. For products on stock, they will be delivered in about 10 days after received the payment.


5.How about the payment?

We accept various methods of payment: T/T, L/C, Trade Assurance, West Union, MoneyGram, Paypal, Credit Card, Cash, D/A, D/P.


Send your inquiry details in the below for free samples,click '' Send ''now!








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China (Mainland) | Manufacturer, Trading Company
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Supplier's Trade Assurance Limit: US $24,000
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