Grade 26SiMnMo
GY5
Corresponding Standard GJB 1496B-2014
Specification for 28Cr2Mo, 26SiMnMo and 22SiMn2TiB Steel Plates
Classification Alloy Steel
26SiMnMo Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.23 1.2 1.2 - - - - - 0.15
Maximum Value 0.29 1.6 1.6 0.015 0.01 0.3 0.5 0.3 0.25
• Acid soluble boron content is 0.0003%~0.0005%.
26SiMnMo Mechanical Properties
thickness
t
mm
Hardness
HBW
t=5~20 High Temperature Tempered or Hot Rolled Sample
HBW10/3000: ≤269
Indentation Diameter (mm): ≥3.7

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