31CrMoV9 1.8519 - EN 10085-2001

Grade	31CrMoV9
European Standard Steel Grade	1.8519
Corresponding Standard	EN 10085-2001 Nitriding Steels. Technical Delivery Conditions
Classification	Alloy Steel

31CrMoV9 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^ⓐ	Cr	Mo	V
Minimum Value	0.27	-	0.4	-	-	2.3	0.15	0.1
Maximum Value	0.34	0.4	0.7	0.025	0.035	2.7	0.25	0.2

31CrMoV9 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
Bars, flat products, forgings; 16≤d≤40	Quenching and Tempering (+QT)	1100~1300	≥900	≥9	-	≥25
Bars, flat products, forgings; 40<d≤100	Quenching and Tempering (+QT)	1000~1200	≥800	≥10	-	≥30
Bars, flat products, forgings; 100<d≤160	Quenching and Tempering (+QT)	900~1100	≥700	≥11	-	≥35
Bars, flat products, forgings; 160<d≤250	Quenching and Tempering (+QT)	850~1050	≥650	≥12	-	≥40
Bars, rods, flat products, forgings, semifinished products	Soft Annealing (+A)	-	-	-	≤248	-
	Nitriding	-	-	-	HV* 800

Approximate Comparison Table Nitriding Steels

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
31CrMoV9	31CrMoV9	1.8519

31CrMoV9 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"!