34CrAlNi7-10 1.8550 - EN 10085-2001

Grade	34CrAlNi7-10
European Standard Steel Grade	1.8550
Corresponding Standard	EN 10085-2001 Nitriding Steels. Technical Delivery Conditions
Classification	Alloy Steel

34CrAlNi7-10 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^ⓐ	Cr	Ni	Mo	Al
Minimum Value	0.3	-	0.4	-	-	1.5	0.85	0.15	0.8
Maximum Value	0.37	0.4	0.7	0.025	0.035	1.8	1.15	0.25	1.2

34CrAlNi7-10 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)	900~1100	≥680	≥10	-	≥30
Bars, flat products, forgings; 40<d≤100	Quenching and Tempering (+QT)	850~1050	≥650	≥12	-	≥30
Bars, flat products, forgings; 100<d≤160	Quenching and Tempering (+QT)	800~1000	≥600	≥13	-	≥35
Bars, flat products, forgings; 160<d≤250	Quenching and Tempering (+QT)	800~1000	≥600	≥13	-	≥35
Bars, rods, flat products, forgings, semifinished products	Soft Annealing (+A)	-	-	-	≤248	-
	Nitriding	-	-	-	HV* 950	-

Approximate Comparison Table Nitriding Steels

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
34CrAlNi7-10	34CrAlNi7-10	1.8550

34CrAlNi7-10 Corresponding Standards(Same grade name, different standards)

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