Grade
S620Q
European Standard Steel Grade
1.8914
Corresponding Standard
EN 10025-6-2019(+A1:2022)
Hot Rolled Products of Structural Steels - Part 6: Technical Delivery Conditions for Flat Products of High Yield Strength Structural Steels in The Quenched and Tempered Condition
Classification
Alloy Steel
Properties
High Strength
S620Q 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
0.015
1.5
4
0.5
0.7
0.015
0.05
0.12
0.06
0.15
0.005
S620Q Mechanical Properties
condition
Test Temperature
Heat Treatment or Condition
Tensile Strength σb
Mpa
Yield Point σs
Mpa
Elongation or Extension Rate δ
%
Impact Energy Absorption KV2
J
Hot-rolled plates; 3≤t≤50
Room Temperature
Tempering (Q)
700~890
ReH: ≥620
≥15
Hot-rolled plates; 50<t≤100
Room Temperature
Tempering (Q)
700~890
ReH: ≥580
≥15
Hot rolled plates; 100<t≤200
Room Temperature
Tempering (Q)
650~830
ReH: ≥560
≥15
Hot rolled plate
long. ≥40 tr. ≥30
Hot rolled plate
long. ≥30 tr. ≥27
1 Approximate Comparison Table Structural, Pressure Vessel and Engineering Steels
2 Approximate Comparison Table High strength structural steel plates in the quenched and tempered condition
China
European Standard
GB
EN
Q620QD
GB/T 16270-2009 Q620D GB/T 16270-1996
S620Q
EN 10025-6-2004
S620Q Corresponding Standards(Same grade name, different standards)
Message
I want to correct it
Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!