11MnNi5-3 1.6212 - EN 10216-4-2013

Grade	11MnNi5-3
European Standard Steel Grade	1.6212
Corresponding Standard	EN 10216-4-2013 Seamless Steel Tubes For Pressure Purpose - Technical Delivery Condition - Part 4: Non-Alloy and Alloy Steel Tubes with Specified Low Temperature Properties
Classification	Alloy Steel

11MnNi5-3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni ^®	Cu	V	Nb	Al
Minimum Value	-	-	0.7	-	-	0.3	-	-	-	0.02
Maximum Value	0.14	0.5	1.5	0.025	0.01	0.8	0.3	0.05	0.05	-

® The lower limit for the nickel content may be reduced to not less than 0.15% for tubes with wall thickness not exceeding 10 mm.

11MnNi5-3 Mechanical Properties

wall thickness T mm	Test Temperature	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
T≤40	Room Temperature	410~530	ReH or Rp0.2 ≥285	l: ≥24 t: ≥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

• l=longitudinal；t=transverse

1 Approximate Comparison Table Pressure-Bearing Flat Steel

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

2 Approximate Comparison Table Pressure-Bearing Flat Steel

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

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