86Cr18W2VRe MF811 - GB /T 12773-2008 - H2ABC

中文版

Grade	86Cr18W2VRe
Other Names
Corresponding Standard	GB /T 12773-2008 Valve Steel and Superalloy Bars for Internal Combustion Engines
Classification	Alloy Steel

86Cr18W2VRe Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	W	V	Re
Minimum Value	0.8	-	-	-	-	16.5	-	2	0.3	-
Maximum Value	0.9	1	1.5	0.035	0.03	18.5	0.3	2.5	0.6	0.02

86Cr18W2VRe Mechanical Properties

condition	Test Temperature	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
Sample d=25	Room Temperature	1050~1080°C Oil quenching + 700~820°C Air cooling	≥1000	≥800	≥7	≥12	290~325
Bar or Coil	Room Temperature	Annealing or tempering delivery					Annealing ≤300; Tempering negotiable
sample		Quenching + Tempering	High Temperature Short-Term Tensile Strength 550	High temperature short-term yield strength 500
sample		Quenching + Tempering	High Temperature Short-Term Tensile Strength 400	High-temperature short-term yield strength 370
sample		Quenching + Tempering	High Temperature Short-Term Tensile Strength 300	High-temperature short-term yield strength 280
sample		Quenching + Tempering	High temperature short-term tensile strength 230	High temperature short-term yield strength 170
sample		Quenching + Tempering	High-temperature short-term tensile strength 180	High-temperature short-term yield strength 120
sample		Quenching + Tempering	High-temperature short-term tensile strength (140)	High-temperature short-term yield strength (80)

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