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                      Products > Alloy tool steel > > Cr12/1.2080/D3/SKD1
                      Product name : Cr12/1.2080/D3/SKD1
                      Item : 2014517162244
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                        Details:

                      Packaging & Delivery

                      Packaging Detail: 20ft: GW:17.5T; (5.80mX2.13mX2.18m,) 40ft: GW:22T; (11.8mX2.13mX2.18m,)
                      Delivery Detail: 7 days after the order is exactly confirmed

                      Specifications

                      Round bar D3 steel 
                      1.EAF/ESR provide 
                      2.Sample free 
                      3.Black or Bright 
                      4.T: 25-200mm W:50-610mm L:2000-4000mm

                       
                      Product Description

                      Round bar D3 steel 

                      1.Specifications of d3 steel:

                       

                                 Round bar

                      Diameter(mm)

                      Length (mm)

                       

                      10~410

                      3000~5800

                       

                       

                                      Plate

                      Thickness(mm)  

                      Width (mm)       

                      Length (mm)    

                      Max:25-200mm

                      50-610mm

                      2000~4000 

                      The size can be customed!

                      2.Equivalent grade:

                      AISI/ASTM

                      GB

                      DIN

                      JIS

                      BS EN ISO

                      D3

                      Cr12

                      1.208

                      SKD1

                      X210Cr12

                      3.Chemical composition(%) of d3 steel: 

                      C

                      Si

                      Mn

                      Cr

                      S

                      P

                      2.00-2.30

                      ≤0.40

                      ≤0.40

                      11.50-13.00

                      ≤0.03

                      ≤0.03

                      4.Heat treatment:

                      Isothermal annealing:

                      - Heat to 850°Chold for 1/2 hour to 1 hour;

                      - Furnace cooling to 770°C and hold at temperature for at least 10 hours;

                      -Cool by 10°C /h to 720°C;

                      -Cooling in air.

                      Stress relieving:

                         To be carried out after machining and before the final heat treatment.

                      -Heat to 650-700°C, hold for 4/6 hours:

                      -Furnace cooling to 330-350°C;

                      -Cooling in air.

                      Hardening:

                      -Initial preheating to 350-450°C;

                      -Second preheating to 750-850°Cin salt bath at 850°C;

                      -Austenitizing at 960-100°C;

                      -Cooling in fluid oil.

                      Tempering hardness: 64-65 HRC

                      5.Application:

                      1.Steel with wear resistance and fairly good dimensional stability during heat treatment. 

                      2.Rolls for cold strip mills and wire squeezer mills, circular knives and shear blades.

                      3.Dies for small metal parts, punches and drawing dies, dies for sintering, forming tool rollers, shear blades.

                      4.Molds for plastic materials. Statically and dynamically stressed components for vehicles,engines and

                       machines.

                      5.For parts of larger cross-sections,crankshafts,gears,wear-resisting press tool and guide palte.ect.

                      6.Characteristic:

                      1.Very high resistance against abrasive and adhesive wear due to a high volume of hard carbidesin the steel.

                      2.Matrix moderate machinability good dimensional stability

                      3.Toughness and through hardenability 

                      7.Machinability

                      The machinability rating of D3 is roughly 25 % that of free machining carbon steel 1018. 

                      Due to its abrasion resistant nature, machining in the hardened condition should be limited to finish grinding.

                      8.Inspection:

                      100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C or by SGS ,AHK or Alex Stewart

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