What is the steel Q345qE?

Q345qE under GB/T 714-2008 standard is a bridge steel grade. As a leading supplier and exporter, we can supply Q345qE hot rolled plates with thickness up to 100mm. Welcome to contact us email: [email protected] if you are interested in our bridge steel Q345qE plate.
 

Q345qE steel properties

Q345qE steel has high strength, toughness and withstands the load and impact of locomotives, and must have good fatigue resistance, certain low temperature toughness and atmoSPHEric corrosion resistance. Low notch sensitivity.

Q345qE steel chemical composition (%)

Grade

C

Si

Mn

P

S

Nb

V

Ti

Cr

Ni

Cu

Mo

N

Als

Q345qE

≤0.18

≤0.55

0.90-1.70

≤0.020

≤0.010

≤0.06

≤0.08

≤0.03

≤0.80

≤0.50

≤0.55

≤0.20

≤0.012

≥0.015

Q345qE steel mechanical properties

Grade	Yield strength(MPa) min for Thickness in mm		Tensile strength min.	Elongation	V-type impact test
	≤50	>50≤100	Mpa	% min	Test temperature ℃	Impact absorption energy KV₂/J
Q345qE	345	335	490	20	0	47

GB/T 714 Q345qE bridge steel plate and sheet are delivered in hot rolled, controlled rolled, normalized or normalized rolled condition. As a leading supplier of Q345qE bridge steel, we can supply deep processing service like cutting, welding, drilling, grinding and heat treatment.
 

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