Bimetal Plates

Standard size

Brass-steel-brass

Brass-steel-brass

Brass-steel-brass

Strip width

78/87/91/114/135139.5mm

124/135/137/140/155mm

< 600 mm

Strip thickness

1.7-3.6mm

0.5-1.37mm

0.05-4.0 mm

Coating thickness

3.4%-4%

3.4%-4%

3%-15 %

Base material

F18 steel

F11 steel

SPHC steel

Cladding material

H90 copper

H90 copper

H90 copper

Delivery form

Coil / Plate

Coil / Plate

Coil / Plate

Grade

Chemical composition of steel strip

C

Si

Mn

P

S

Ni

Cr

Cu

Als

%

%

%

%

%

%

%

%

%

F11

≤0.11

≤0.06

0.30-0.55

≤0.02

≤0.01

≤0.3

≤0.15

≤0.2

0.02-0.1

F18

0.11-0.19

≤0.06

0.35-0.55

≤0.02

≤0.01

≤0.3

≤0.15

≤0.2

0.02-0.1

SPHC

≤0.15

≤0.05

≤0.6

≤0.035

≤0.035

-

-

-

≥0.010

Grade

Chemical composition of copper strip

Cu+Ag

(min)

P

Bi

Sb

As

Fe

Pb

S

Zn

Total impurities

%

%

%

%

%

%

%

%

%

%

H90

88-91

-

-

-

-

≤0.1

≤0.02

-

allowance

≤0.2

Material

tensile strength(Mpa)

Elongation(%)

Grain size

Pearlite

Non-metallic inclusionsA/B/C/D

Annealed

half hard

Annealed

half hard

H90/SPHC/H90

290~355

360~455

≥36%

≥8%

7-10

1-5

≤2.5

H90/F11/H90

265~365

-

≥43%

-

7-10

1-5

≤2.5

H90/F18/H90

305~395

-

≥37%

-

7-10

2-6

≤2.5