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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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