Q345qC bridge steel plate and sheet

Q345qC steel is a structural steel quality of Q345q under GB/T 714-2008 standard. Our produced Q345qC plates are supplied with size 100mm thickness max. There are also Q345qC steel coils, Q345qC hot rolled steel sections, Q345qCNH weathering steel, Q345qCZ15 Z-direct steel. Welcome to contact us email: [email protected] if you are interested in our bridge steel.
 
Q345qC steel equivalent: A709 Gr.50 steel

GB/T 714 Q345qC steel properties

Q345qC 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.

Chemical composition (%) for GB/T 714 Q345qC structural steel

Grade

C

Si

Mn

P

S

Nb

V

Ti

Cr

Ni

Cu

Mo

N

Als

Q345qC

≤0.20

≤0.55

0.90-1.70

≤0.030

≤0.025

≤0.06

≤0.08

≤0.03

≤0.80

≤0.50

≤0.55

≤0.20

≤0.012

≥0.015

Mechanical properties for Q345qC structural steel

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
Q345qC	345	335	490	20	0	47

Q345qC bridge steel plate and sheet are delivered in hot rolled, controlled rolled, normalized or normalized rolled condition. As a leading supplier of Q345qC bridge steel, we can supply deep processing service like cutting, welding, drilling, grinding and heat treatment.
 

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