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圆钢

 

圆钢规格 ¢18-60mm,,材质包括20#,45#,55#,40CrUP,40CrUC,40Mn2,20CrMnTi,42CrMo

优质碳素结构钢Quality Carbon Structural Steels

Grade Diameter(mm) Standard C Si Mn P S Ni Cu Cr
20  
¢18-60 ¢50-130 ¢160-230
 
 
GB/T
0.17-0.23 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.30 ≤0.25 ≤0.25
45 0.42-0.50 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.30 ≤0.25 ≤0.25

优质碳素结构圆管坯Quality Carbon Structural Steel Seamless Tube Blank
Grade Diameter(mm) Standard C Si Mn P S Ni Cu Cr
10  
¢50-130 ¢160-230
 
 
GB/T
0.07-0.13 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.30 ≤0.25 ≤0.15
20 0.17-0.23 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.30 ≤0.25 ≤0.25
 
 合金结构钢Alloy Structure Steel
Grade Diameter(mm) Standard C Si Mn P S Ni Cu Cr Mo
40Cr ¢18-60 GB/T 0.37-0.44 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035 ≤0.30 ≤0.30 0.80-1.10 ≤0.15
 
轴承钢Bearing Steel
Grade Diameter(mm) Standard C Si Mn P S Ni Cu Cr O Mo
GCr15 ¢18-60 GB/T 0.95-1.05 0.15-0.35 0.25-0.45 ≤0.025 ≤0.025 ≤0.30 ≤0.30 1.40-1.65 12*10ˉ6 ≤0.10
GCr4 ¢18-60 GB/T 0.95-1.05 0.15-0.30 0.15-0.30 ≤0.025 ≤0.020 ≤0.25 ≤0.20 0.35-0.50 12*10ˉ6 ≤0.08
GCr15SiMn ¢18-60 GB/T 0.95-1.05 0.45-0.75 0.95-1.25 ≤0.025 ≤0.025 ≤0.30 ≤0.25 1.40-1.65 12*10ˉ6 ≤0.10
 
 齿轮钢Gear Steel
Grade Diameter(mm) Standard C Si Mn P S Ni Cu Cr V Ti Mo
20CrMnTi ¢18-60 GB/T 0.17-0.23 0.17-0.37 0.80-1.10 ≤0.035 ≤0.035 ≤0.30 ≤0.30 ≤1.00-1.30 0.04-0.10 ≤0.15

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