S275JR steel plate is a general carbon structural steel. This kind of steel is similar to the steel grades listed in GB/T700 and GB/T1591 in my country. It is also carbon structural steel and low-alloy structural steel for engineering and structural steel, usually without heat treatment. goods. S275 is equivalent to Q275. It is necessary to test the impact energy at room temperature of 20℃, 0℃, and -20℃.
S275JR (thickness ≤40mm) chemical composition%
C≤0.
Mn≤0.
P≤0.
S≤0.045
N≤0.009
S275JR (thickness >40mm) chemical composition%
C≤ 0.
Mn≤0.
P≤0.
S≤0.045
N≤0.009
S275JR (thickness ≤16mm) chemical composition%
C≤0.21
Mn≤1.50
P≤0.035
S≤0.035
Cu≤0.55
N≤0.012
S275JR (thickness>16---≤40mm) chemical composition%
C≤0.21
Mn≤1.50
P≤0.035
S≤0.035
Cu≤0.55
N≤0.012
Others: CEV≤0.40--≤0.44
S275JR (thickness>40mm) chemical composition%
C≤0.22
Mn≤1.50
P≤0.035
S≤0.035
Cu≤0.55
N≤0.012
Others: (≤30--≤400mm)
S275JR steel plate is generally used in construction and various types of engineering and construction, such as drilling rigs, electric shovels, electric wheel dump trucks, excavators, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts.
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