11 MnNi 5-3 - ISO 9329-3-1997

Grade	11 MnNi 5-3
Corresponding Standard	ISO 9329-3-1997 Unalloyed and Alloyed Steels with Specified Low Temperature Properties
Classification	Alloy Steel

11 MnNi 5-3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni ^②	V	Nb	Al ^①
Minimum Value	-	-	0.7	-	-	0.3	-	-	-
Maximum Value	0.14	0.5	1.5	0.03	0.025	0.8	0.05	0.05	0.02

11 MnNi 5-3 Mechanical Properties

wall thickness T mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
T≤13	Normalizing	410~530	ReH or Rp0.2 or Rp0.5 ≥285	22	l: ≥70 t: ≥45
13＜T≤25	Normalizing	410~530	ReH or Rp0.2 or Rp0.5 ≥275	22	l: ≥70 t: ≥45
25＜T≤40	Normalizing	410~530	ReH or Rp0.2 or Rp0.5 ≥265	22	l: ≥70 t: ≥45
T≤40					l: ≥55 t: ≥40
T≤40					l: ≥50 t: ≥35
T≤40					l: ≥45 t: ≥30
T≤40					l: ≥40 t: ≥27

Approximate Comparison Table Pressure-Bearing Flat Steel

International Organization for Standardization	European Standard
ISO	Numerical Grade
11MnNi 5-3	1.6212

11MnNi5-3 Corresponding Standards(Same grade name, different standards)

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