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Grade 24CrMo4
Corresponding Standard ISO 683-18-2014
Heat-treatable Steels, Alloy Steels and Free-Cutting Steels - Part 18: Bright Steel Products
Classification Alloy Steel
24CrMo4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu Mo
Minimum Value 0.2 0.1 0.6 - - 0.9 - 0.15
Maximum Value 0.27 0.4 0.9 0.025 0.035 1.2 0.4 0.3
24CrMo4 Mechanical Properties
Heat Treatment or Condition
Hardness
HBW
5≤t≤10 +A+cold drawn (+A+C) ≤270
10＜t≤16 +A+cold drawn (+A+C) ≤260
16＜t≤40 +A+cold drawn (+A+C) ≤255
40＜t≤100 +A+cold drawn (+A+C) ≤250
16＜t≤100 +A+ peeled (+A+SH) ≤212
Approximate Comparison Table Structural Alloy Steel
Japan International Organization for Standardization European Standard
JIS ISO EN Numerical Grade
SCM425
SCM425H 		24CrMo4 24CrMo4 1.7208
24CrMo4 Corresponding Standards(Same grade name, different standards)
1 DIN EN ISO 683-3-2019
24CrMo4
2 ISO 683-3-2019
24CrMo4
3 ISO 683-11-2012
24CrMo4
4 ISO 683-18-2014
24CrMo4

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