15Cr2SiMnMoNbA - GB /T 26075-2019

Grade	15Cr2SiMnMoNbA
Corresponding Standard	GB /T 26075-2019 Steel Bars for Sucker Rods
Classification	Alloy Steel

15Cr2SiMnMoNbA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	Nb
Minimum Value	0.12	0.8	0.8	-	-	1.5	-	0.05	0.03
Maximum Value	0.2	1.4	1.1	0.025	0.02	2	0.2	0.15	0.06

15Cr2SiMnMoNbA Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
d=15	Heat Treatment	≥965	≥795	≥12	≥45	KU2: ≥60

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