Factors to consider when choosing sheet metal material for fabrication

Material Surface finish Yield (MPA) Tensile (MPA) Hardness GB standard Sheet Metal CNC
Powder coating E-Coating Zinc plating Dacromet Anodized Passivation
Cold Rolled Steel (CRS)
 SPCC             ≥210 ≥350 HB 65 - 80 JIS G3141-2009     
 SAPH440             ≥305 ≥440 HB 80 ±30 Q/BQB 310-2009     
Hot Rolled Steel
 #20             ≥245 ≥410 ≥143 GB/20CrNiMo     
 Q235             ≥235 375 – 500 HB 120 ±40 GB/T 700-2006      
 Q345             ≥345 490 – 675 HB 120 ±40 GB/T 1591-2008      
Spring Steel
 65Mn             ≥785 ≥980 HB 190 – 340 GT/T 1222-2007     
Aluminum
 AL1060             ≥35 ≥75 HB 26 ±5 GB/T 3190-2008     
 AL6061 T6             ≥276 ≥260 HV 15 – 18 GB/T 3190-2008      
 AL6063 T5             ≥170 ≥250 HB 25 ±5 GB/T 3190-2008     
 AL5052 H32             ≥70 210 – 260 HV 11 ±2 GB/T 3190-2008     
 AL7075 T6             ≥503 ≥572 HB 150 ±5 GB/T3880-2017     
Stainless Steel
 SS301             ≥205 ≥520 HB 76 – 187 GB/T 8170-2008     
 SS304             ≥205 ≥520 HB 76 – 187 GB/T 24511-2009      
 SS316             ≥205 ≥520 HB 76 – 187 GB/T 24511-2009      
Cold Galvanized Steel
 SGCC             ≥200 ≥380 HB 50 – 65 JIS-G3302     

 

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