Gilding Metal Clad Steel
The company produces and sells cups of various calibres and raw materials. According to the raw material grades, it can be divided into H90/H70 brass cups, F11/F18 copper clad steel cups, F11/F18 steel cups, etc. According to the caliber of the bomb, it can be divided into 5.56mm, 7.62mm, 9mm, 12.7mm, 14.5mm and so on. Due to the different bomb-making processes in various countries, the requirements for the same caliber of cups are also different, the company can customize molds and products according to the drawings and technical requirements provided by customers.
Product Introduction
The company produces and sells cups of various calibres and raw materials. According to the raw material grades, it can be divided into H90/H70 brass cups, F11/F18 copper clad steel cups, F11/F18 steel cups, etc. According to the caliber of the bomb, it can be divided into 5.56mm, 7.62mm, 9mm, 12.7mm, 14.5mm and so on. Due to the different bomb-making processes in various countries, the requirements for the same caliber of cups are also different, the company can customize molds and products according to the drawings and technical requirements provided by customers.
1) Military Products
|
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 |
2) 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 |
3) 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 |
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