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SAE10B21 Cold heading quality wires CHQ wire

 Characteristics:The products are mainly used to produce fasteners of class 8.8 ~ 10.9. Use of Products:10B21,10B28 and 10B33 are mainly used to produce fasteners of class 8.8 ~10.9It has of uniform-chemicalcompositionlow percentage of harmful elementshigh puruty,slight decarburisationgood surface quality,good cold heading perfomencelow rigidity. They also has characteristics of high intensity and good hardenability after heat treatment. 

 

钢号 Grade 化学成份(Chemical composition)%
SAE Standard C Mn Si S P B Al
10B18 0.16~0.23 0.60~0.90 0.10Max Max0.30 Max0.30 0.0008~0.003 Min0.020
10B21 0.18~0.23 0.60~0.90 0.10Max Max0.30 Max0.30 0.0008~0.003 Min0.020
10B28 0.26~0.32 0.70~1.00 0.40Max Max0.30 Max0.30 0.0008~0.003 Min0.020
10B30 0.28-0.34 0.70~1.00 0.10Max Max0.30 Max0.30 0.0008~0.003 Min0.020
10B33 0.29~0.38 0.70~1.00 0.15~0.35 Max0.35 Max0.30 0.0008~0.003 Min0.020
10B38 0.35~0.42 0.70~1.00 0.15~0.35 Max0.35 Max0.30 0.0008~0.003 Min0.020

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