33Cr23Ni8Mn3N 23-8N - GB /T 12773-2021

Grade	33Cr23Ni8Mn3N
Other Names
Corresponding Standard	GB /T 12773-2021 Valve Steel and Superalloy Bars for Internal Combustion Engines
Classification	Austenitic Stainless Steel

33Cr23Ni8Mn3N Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	W
Minimum Value	0.28	0.5	1.5	-	-	22	7	-	-	0.25	-
Maximum Value	0.38	1	3.5	0.04	0.03	24	9	0.3	0.5	0.35	0.5

33Cr23Ni8Mn3N 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	1150~1200°C Solution treatment + 780~820°C Air cooling	≥850	Rp0.2: ≥550	≥20	≥30	≥25HRC
Bar or Coil	Room Temperature	Solution treatment					≤360HBW
sample		Solution treatment + Aging	High Temperature Short-Term Tensile Strength 600	High-temperature short-term yield strength 270
sample		Solution treatment + Aging	High temperature short-term tensile strength 570	High temperature short-term yield strength 250
sample		Solution treatment + Aging	High temperature short-term tensile strength 530	High temperature short-term yield strength 220
sample		Solution treatment + Aging	High temperature short-term tensile strength 470	High-temperature short-term yield strength 210
sample		Solution treatment + Aging	High Temperature Short-Term Tensile Strength 400	High temperature short-term yield strength 190
sample		Solution treatment + Aging	High-temperature short-term tensile strength 340	High-temperature short-term yield strength 180
sample		Solution treatment + Aging	High temperature short-term tensile strength 280	High temperature short-term yield strength 170

Approximate Comparison Table Austenitic Heat-Resistant Steel

China	United States	International Organization for Standardization	European Standard
GB	SAE	ISO	EN	Numerical Grade
33Cr23Ni8Mn3N 23-8N	EV16	X33CrNiMnN 23-8	X33CrNiMnN 23-8	1.4866

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!