Grade P690Q
Corresponding Standard ISO 9328-6-2018
Steel Flat Products for Pressure Purposes - Weldable Fine Grain Steels, Quenched and Tempered
Classification Alloy Steel
P690Q Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo N Ti V Nb Zr B
Minimum Value - - - - - - - - - - - - - - -
Maximum Value 0.2 0.8 1.7 0.025 0.01 1.5 2.5 0.3 0.7 0.015 0.05 0.12 0.06 0.15 0.005
P690Q Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
t ≤ 50 770~940 ≥690 ≥14
50<t ≤ 100 770~940 ≥670 ≥14
100<t ≤ 200 720~900 ≥630 ≥14
Approximate Comparison Table Pressure-Bearing Flat Steel
International Organization for Standardization European Standard
ISO EN Numerical Grade
P690Q P690Q 1.8879
P690Q Corresponding Standards(Same grade name, different standards)

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