Related products : BUFD steel , BLD steel , BSUFD steel , BUSD steel , BLC steel

BDCK steel

BACK battery is dedicated cold rolled material, cold-rolled products are mainly used in automotive panels, home appliances plate, tin plate, color-coated, electrical steel and other high value-added products.

BDCK battery shell steel grade and application:


Standard No.

Steel grade

Surface structure

Nominal thickness

Application

BZJ495-2008

BDCK

(B)

0.25~0.30

Alkaline battery steel shell

BDCK

(D)

0.25~0.50

Rechargeable battery steel shell

BDCK battery shell steel chemical composition:


Steel grade

Chemical composition %

C

Si

Mn

P

S

Alt

BDCK

≤0.05

≤0.03

≤0.50

≤0.03

≤0.03

≤0.06

BDCK battery shell steel mechanical performance:


Steel grade

Tensile
Strength
Mpa
≥

After Breakage Percent Elongation b
(L o =50mm, b=25mm) % ≥

HRB

BDCK

275

34

40~56

 a: using P14 sample of GB/T228

BDCK battery shell steel allowable dimension deviation:


Steel grade

Surface structure

Nominal thickness

Allowable thickness deviation

Allowable width deviation

BDCK

Glaze(B)

0.25~0.30

-0.007~+0.003

Trimming: 0~+3
No trimming: 0~+5

BDCK

Pitted (D)

0.25~0.50

±0.01

BDCK battery shell steel surface roughness:


Steel grade

Surface structure

Even roughness Ra

BDCK

Glaze(B)

Ra ≤0.5μm

BDCK

Pitted (D)

0.5μm<Ra≤1.0μm

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