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ML20B,China CHQ Wire rod, Cold Forming Wire,SAIP wire,SAFS wire,HD wire,PSAIP Wire,Alloy Wire Rod

 Products Grade:ML20B

Specifications: φ0.8-25mm

Applied Standard:  JIS SAE 

Characteristics: The wire rod is used to produce cylinder nut and bolt ,rail bolt, tud bolt of class 12.9..

Use of Products: ML20B is a commen steel grade which used to produce high strength bolt of class 12.9.This product has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, slight decarburisation, good surface quality. After spheroidize annealing, this product has the characteristics of good cold heading properties ,stable heat-treatment properties and good hardenability. 

钢号 Grade 化学成份(Chemical composition%
C Si Mn P S Cr Mo B Alt 其他
ML37Cr 0.34~0.41         0.90~1.20        
ML40Cr 0.38~0.45 0.30 0.90~1.20
ML30CrMo 0.26~0.34 0.80~1.10 0.15~0.25
ML35CrMo 0.32~0.40
ML42CrMo 0.38~0.45 0.90~1.20
ML20B 0.17~0.24 0.40 0.50~0.80 ~ ~ 0.0005~.00035 0.020
ML28B 0.25~0.32 0.60~0.90
ML35B 0.32~0.39 0.50~0.8
ML15MnB 0.14~0.20 0.30 1.20~1.60
ML20MnB 0.17~0.24 0.40 0.80~1.20
ML35MnB 0.32~0.39 1.10~1.40
ML37CrB 0.34~0.41 0.50~0.80 Cr0.20~0.40
ML20MnTiB 0.19~0.24 0.30 1.30~0.60 Ti0.40~0.10
ML15MnVB 0.13~0.18 1.20~160 V0.07~0.12
ML20MnVB 0.19~0.24

 

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