• Copper Steel Composite Sheet F18
  • Copper Steel Composite Sheet F18
  • Copper Steel Composite Sheet F18
  • Copper Steel Composite Sheet F18
  • Copper Steel Composite Sheet F18
  • Copper Steel Composite Sheet F18

Copper Steel Composite Sheet F18

Product Type: Sheet
Material: C11000/SPHC/F11/F18
Carbon Content: Low Carbon
PCD: Customize as Needed
ET: Customize as Needed
Hole: Customize as Needed
Samples:
US$ 10/kg 1 kg(Min.Order)
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Customization:
Gold Member Since 2020

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Manufacturer/Factory

Basic Info.

Model NO.
H90/F11/F18/H90
Transport Package
Wood Pallet
Specification
brass / steel
Trademark
Estar
Origin
Ningbo
HS Code
721260000
Production Capacity
10000tons/Years

Product Description

Copper-steel composite material with good elongation, high bonding strength, low resistivity, high tensile strength and low cost is provided. A copper-steel-copper composite material is disclosed. Its chemical composition proportion is 5-20% of copper and 80-95% of steel, and its structure is composed of copper and steel. The invention also discloses the preparation method of copper-steel composite material. The preparation steps are as follows: after surface treatment, copper and steel are rolled into high-precision steel strip and high-precision copper strip by cold rolling mill; after surface cleaning, surface residues are removed and degreased; high-precision copper-steel composite strip is rolled by cold rolling mill; and copper-steel composite strip is annealed at 650-850 C in vacuum furnace. In 1-4 hours, the structural molecules of the composite layer of two kinds of metal materials are melted, and then cooled to room temperature in vacuum furnace; the two kinds of strips are compounded to make the strips compounded into one and finish rolling; the composite materials are smoothed and polished, and the strips are packed after shearing according to the requirements of users.

Military industry: Copper-steel composite material temperature and pressure-penetration composite technology is a new technology emerging in the field of domestic metal composite strip materials, in addition to the high strength, good heat resistance, thermal stability, plasticity and corrosion resistance common to composite materials In addition to the characteristics of resistance and abrasion resistance, in the field of military bullet manufacturing, there are also the advantages of high yield and high dimensional accuracy, which are beneficial to improve the quality of bullets; the composite material has good consistency, thereby ensuring the consistency of the bullet and the shell; One batch is heavy and can be processed continuously, which greatly improves the production efficiency of bullets. The surface quality is excellent, comparable to pure copper; the brass on the surface of the copper-steel composite material also has a lubricating effect, which can reduce the impact on the barrel when shooting The wear and tear of the barrel and rim. It has been widely used in military products such as bullet shells and detonators. The sales network of military copper-steel composite materials has covered the world and won unanimous praise from many customers.
i)Military Products
Standard size Brass-steel-brass Brass-steel-brass Brass-steel-brass
Strip width 139.5mm 124/135/137/140mm < 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 / Strip Coil / Strip Coil / Strip
 

ii)Chemical Composition

 

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


iii)Mechanical properties and metallographic structure
 

 

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

Copper Steel Composite Sheet F18
Copper Steel Composite Sheet F18

Equipment and workshop
Copper Steel Composite Sheet F18Copper Steel Composite Sheet F18Copper Steel Composite Sheet F18

Copper Steel Composite Sheet F18

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Gold Member Since 2020

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Manufacturer/Factory
Registered Capital
1000000 RMB
Plant Area
>2000 square meters