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Steel: 1.2083
Corresponding Steel  
Grade and Chemical  
Chemical Composition(%)
Standard/Steel Grade C Si Mn Cr Ni P S
GB 4Cr13 0.36~0.45 ≤ 0.60 ≤ 0.80 12.00~14.00 ≤ 0.60 ≤0.035 ≤0.030
AISI -    
DIN 1.2083 0.36~0.42  ≤ 1.00  ≤ 1.00  12.50~14.50    ≤0.030  ≤0.030 
Brief Introduction: It is martensitic stainless steel which has good machinability, corrosion resistance and abrasion resistance.Even hardness, high purity degree, good surface finish.Stable hardenability and low rate of deformation.Can get the best polish performance after quenching and tempering; good performance of thermal stress fatigue resistance.It’s suitable for plastic mold and crystal plastic mold, which need to bear high load, high abrasion resistance and work under aggressive medium.It is suitable for abrasion resistible mold, including thermoset plastic extrusion mold.With etching medium, like mold for PVC.Long service life mold, like mold for disposable tableware and snack box.Production of optical product parts, like camera and lens of sunglass.Mold for medical treatment container.
Shape & Dimension: Forged Products:
Round: 60mm-400mm
Block/Flat: 40-240mm*150-610mm 
Delivery Condition: Forged, Annealed, Turned/Milled
Note: P:0.025Max
Hardness: <225HB
UT 1921 C/c