31CrMoB2-1 - ISO 4954-2018

Grade	31CrMoB2-1
Corresponding Standard	ISO 4954-2018 Steels for Cold Heading and Cold Extruding
Classification	Alloy Steel

31CrMoB2-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	B
Minimum Value	0.28	-	0.9	-	-	0.4	-	0.1	0.0008
Maximum Value	0.33	0.3	1.2	0.025	0.025	0.55	0.25	0.15	0.005

31CrMoB2-1 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
5＜d≤40	+AC or +AC+PE	≤570	≥61
2＜d≤5	+AR+C+AC	≤570	≥63
5＜d≤40	+AR+C+AC	≤550	≥63
2＜d≤5	+AR+C+AC+LC	≤610	≥61
5＜d≤40	+AR+C+AC+LC	≤590	≥61
5＜d≤40	+AC+C	≤690	≥56

Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
31CrMoB2-1	31CrMoB2-1	1.7272

31CrMoB2-1 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!