GB/T 714-2008 Q420qC bridge steel

GB/T 714-2008 Q420qC material is a Chinese steel grade bridge steel. We can supply Q420qC bridge steel plates and sheets with thickness up to 100mm.

Q420qC steel properties
GB/T 714 Q420qC 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.
Standard: GB/T 714-2008
Grades: Q420qC, Q420qD, Q420qE

Chemical composition (%) for GB/T 714 Q420qC steel

Grades

C

Si

Mn

P

S

Nb

V

Ti

Cr

Ni

Cu

Mo

B

N

Als

Q420qC

≤0.18

≤0.55

1.00-1.70

≤0.030

≤0.025

≤0.06

≤0.08

≤0.03

≤0.80

≤0.70

≤0.55

≤0.35

≤0.004

≤0.012

≥0.015

Mechanical properties for Q420qC steel

Grades	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
Q420qC	420	410	540	19	0	47

Q420q plates are delivered in hot rolled, controlled rolled, normalized or normalized rolled condition. We can supply Q420qC, Q420qD steel sheets, Q420qE steel plate with thickness up to 100mm. Welcome to contact us email [email protected]  if you are interested in our Q420q bridge steel plate.
 
 

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