20MnB5 1.5530 20MB5 - NF EN 10083-3-2006

Grade	20MnB5
	1.5530
Old Grade
Corresponding Standard	NF EN 10083-3-2006 Tempered alloy structural steel
Classification	Alloy Steel

20MnB5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	B
Minimum Value	0.17	-	1.1	-	-	0.0008
Maximum Value	0.23	0.4	1.4	0.025	0.035	0.005

20MnB5 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Steel: d ≤ 16mm; t ≤ 8mm	Quenching + Tempering (+QT)	900~1050	≥700	≥14	≥55
Steel: 16mm ≤ d ≤ 40mm; 8mm ≤ t ≤ 20mm	Quenching + Tempering (+QT)	750~900	≥600	≥15	≥55		≥60
Steel:	Processed to a Certain Shearability (+S)					①
Steel:	Softening Annealing (+A)					②

20MnB5 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"!