Grade 25NiMnCrMoA
Corresponding Standard GB /T 26075-2019
Steel Bars for Sucker Rods
Classification Alloy Steel
25NiMnCrMoA Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.22 0.15 0.71 - - 0.42 0.72 - 0.01
Maximum Value 0.29 0.35 1 0.025 0.02 0.65 1 0.2 0.06
25NiMnCrMoA Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Impact Energy Absorption
KV2
J
d=15 Quenching + Tempering ≥865 ≥795 ≥15 ≥55 KU2: ≥60

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