Q370qC Q370qD Q370qE bridge steel

The grade of bridge steel, Q - the yield point of bridge steel; 370- yield point value, in MPa; Q bridge; C-The quality level is Grade C, the execution standard is GB/T714.

Q370q bridge steel composition:
C:≤0.18; Si:≤0.55; Mn: 0.90-1.70; P:≤0.025; S:≤0.020; Nb:≤0.06; V:≤0.08; Ti:≤0.03; Cr:≤0.80; Ni:≤0.50; Cu:≤0.55; N:≤0.012; Mo:≤0.20; Als:≥0.015.

Q370qC bridge steel mechanical properties:
ReL (MPa):≥370
Rm (MPa):≥530
A5 (%):≥21
Bending angle:180

Q370qD bridge steel mechanical properties:
ReL (MPa):≥370
Rm (MPa):≥530
A5 (%):≥21
Impact temperature:-20
Akv (J):≥ 41, longitudinal; V-type aging impact energy (longitudinal) ≥ 41J
Bending angle:180

Q370qE bridge steel mechanical properties:
ReL (MPa):≥370
Rm (MPa):≥530
A5 (%):≥21
Impact temperature -40
Akv (J):≥ 41 longitudinal; V-type aging impact energy (longitudinal) ≥ 41J
Bending angle 180

Q370qC Q370qD Q370qE bridge steel usage:
Q370qC Q370qD Q370qE steel plates are widely used in buildings and bridges, as well as in the production of riveted and bolted welded structures for highway and railway bridges (including cross sea bridges).