27MnCrB5-2 1.7182 - NF EN 10083-3-2006

Grade	27MnCrB5-2
	1.7182
Corresponding Standard	NF EN 10083-3-2006 Steels for Quenching and Tempering - Part 3: Technical Delivery Conditions for Alloy Steels
Classification	Alloy Steel

27MnCrB5-2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	B
Minimum Value	0.24	-	1.1	-	-	0.3	0.0008
Maximum Value	0.3	0.4	1.4	0.025	0.035	0.6	0.005

27MnCrB5-2 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)	1000~1250	≥800	≥14	≥55
Steel: 16mm ≤ d ≤ 40mm; 8mm ≤ t ≤ 20mm	Quenching + Tempering (+QT)	900~1150	≥750	≥14	≥55		≥60
Steel: 40mm ≤ d ≤ 100mm; 20mm ≤ t ≤ 60mm	Quenching + Tempering (+QT)	① 800~1000	① ≥700	① ≥15	① ≥55		① ≥65
Steel:	Processed to a Certain Shearability (+S)					②
Steel:	Softening Annealing (+A)					③

27MnCrB5-2 Corresponding Standards(Same grade name, different standards)

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