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By certification 
NINGBO ESTAR METAL MATERIAL CO.,LTD is a domestic research and development, production, sales of science and technology companies.
The company mainly sells gilding metal clad steel strips, copper strip, copper rod, copper tube,and other raw materials. Copper cups, steel cups, gilding metal clad steel cups and other military stamping products. The company specializes in designing and manufacturing all kinds of stamping supporting molds and selling production equipment and machines. The products are applied to military industry, low-voltage electrical appliances, electronics, communications, house appliances and other fields. The company maintains close cooperation with many domestic and foreign military enterprises, and its sales network covers the world.
|
Standard size |
Brass-steel-brass |
Brass-steel-brass |
Brass-steel-brass |
|
Strip width |
78/87/91/114/135139.5mm |
124/135/137/140/155mm |
|
|
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 |
This product is dedicated to military products and is the main material for bullets. Special specifications and specific requirements Our company will have professional engineers communicate with you for customized production.
http://www.bestestar.com/
