With deep drawing use and welding performance and relatively high dimensional accuracy, DC04(St14, St15) cold-rolled low carbon steel plates have been widely applied to manufacture of various automotive parts.

DC04(St14, St15) cold-rolled low carbon steel chemical composition:

a: For steel grades DC04, when C≤0.01, Alt≥0.015.

b: with Nb instead of Ti, but Nb and TI total content ≤0.20

DC04(St14, St15) cold-rolled low carbon steel mechanical performances:

a. taking R P0.2 in case of indistinct yield, otherwise R eL .

b. r 90 and n 90 for DC04, allowable reduction by 0.2 in case of thickness≥1.6mm, no guarantee for r and n in case of thickness ≥2.0mm.

c. r=(r 90 +2r 45 +r 0 )/4; n=(n 90 +2n 45 +n 0 )/4.

Features

Short construction period

No maintenance required

Easy installation, low installation cost

Light weight, no influence to original structure

Corrosion resistance, long-term effect of 50 years

Cost effective compared with other retrofitting method

1 layers of CFRP laminate is equivalent to 4-8 layers of CFRP fabric