Automotive steel

B420CL steel plate

B420CL thickness allowable deviation should be consistent with Q / BQB 301 high precision (PT.B) provisions,B420CL good cold formability for automotive roll forming wheel and spoke network.

B420CL steel mechanical property

Grade

Tensile test

Yield strength

Tensile strength

Yield ratio

Elongation after fracture
A
L0=5.65√S0
(%)

180°Bending Test b
Diameter

B420CL

≥290

420-520

--

≥28

0.5a

B420CL steel chemical composition

Grade

Chemical composition(Heat analysis)%

C

Si

Mn

P

S

Alt

B420CL

≤0.12

≤0.30

≤1.50

≤0.030

≤0.025

≥0.010

B420CL application:

B420CL steel plate, steel strip is a kind of hot-rolled picked steel trip for automotive structure steel with welding performance, and some stamping performance. B420CL steel plate, steel strip is widely used, such as automobile manufacturing, electrical products, rolling stock, aerospace, precision instruments, food cans and so on.

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