45Cr14Ni14W2Mo - GB /T 12773-2021

Grade	45Cr14Ni14W2Mo
Corresponding Standard	GB /T 12773-2021 Valve Steel and Superalloy Bars for Internal Combustion Engines
Classification	Austenitic Stainless Steel

45Cr14Ni14W2Mo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	W
Minimum Value	0.4	-	-	-	-	13	13	-	0.25	2
Maximum Value	0.5	0.8	0.7	0.035	0.03	15	15	0.3	0.4	2.75

45Cr14Ni14W2Mo 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	≥785	Rp0.2: ≥395	≥25	≥35	-
Bar or Coil	Room Temperature	Solution treatment					≤295
sample		Solution treatment + Aging	High Temperature Short-Term Tensile Strength 600	High-temperature short-term yield strength 250
sample		Solution treatment + Aging	High temperature short-term tensile strength 550	High temperature short-term yield strength 230
sample		Solution treatment + Aging	High temperature short-term tensile strength 500	High temperature short-term yield strength 210
sample		Solution treatment + Aging	High temperature short-term tensile strength 410	High-temperature short-term yield strength 190
sample		Solution treatment + Aging	High Temperature Short-Term Tensile Strength 350	High temperature short-term yield strength 170
sample		Solution treatment + Aging	High-temperature short-term tensile strength 270	High-temperature short-term yield strength 140
sample		Solution treatment + Aging	High temperature short-term tensile strength 180	High temperature short-term yield strength 100

1 Approximate Comparison Table Austenitic Heat-Resistant Steel

2 Approximate Comparison Table Valve Steel

45Cr14Ni14W2Mo Corresponding Standards(Same grade name, different standards)

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