Grade P690QL1
Corresponding Standard ISO 9328-6-2018
Steel Flat Products for Pressure Purposes - Weldable Fine Grain Steels, Quenched and Tempered
Classification Alloy Steel
P690QL1 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 0.02 0.008 1.5 2.5 0.3 0.7 0.015 0.05 0.12 0.06 0.15 0.005
P690QL1 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
1 Approximate Comparison Table Pressure-Bearing Flat Steel
International Organization for Standardization European Standard
ISO EN Numerical Grade
P690QL1 P690QL1 1.8881
2 Approximate Comparison Table Pressure-Bearing Flat Steel
China International Organization for Standardization
GB ISO
Q690DR
GB/T 713.6-2023
P690QL1
ISO 9328-6-2018
P690QL1 Corresponding Standards(Same grade name, different standards)

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