GG-20
Available formats: Sheet metal, plates, bars, profiles and wires.
GG-20 is the degree of lowest hardness of qualities. This material offers exceptional machinability and excellent surface finish, but with limited wear resistance and resilience. Noise, vibration damping and thermal conductivity are excellent in this degree. Complies with EN 16482: 2014 | IN GJL-200C.
Brinell hardness
120-200 HB test with 10 mm diameter ball and 3000Kg load. depending on the size of the section. Hardness readings are taken throughout the entire section of the bar. The hardness values for rectangles depend on the relationship between height and width and can be supplied upon request.
Micro structure
It contains graphite 'A' type sheets, in accordance with ISO 945. The periphery zone contains 'D' type sheets and 'E' interdendritic graphite. The structure of the matrix, in nucleus, is mostly ferritic with less than 10 % of perlite in total.
Chemical composition
%
|
C
|
Si
|
Mn
|
S
|
P
|
-
|
-
|
Others / Alloys
|
Fe
|
Min. |
2,95 |
2,1 |
0,55 |
0,04 |
0,1 |
- |
- |
- |
- |
Max. |
3,45 |
2,9 |
0,75 |
0,07 |
0,2 |
- |
- |
Residual |
Balance |
Typical ranges: (Analysis at the discretion of the manufacturer)
features
GG-20 is the degree of lowest hardness of qualities. This material offers exceptional machinability and excellent surface finish, but with limited wear resistance and resilience. Noise, vibration damping and thermal conductivity are excellent in this degree. Complies with EN 16482: 2014 | IN GJL-200C.
Brinell hardness
120-200 HB test with 10 mm diameter ball and 3000Kg load. depending on the size of the section. Hardness readings are taken throughout the entire section of the bar. The hardness values for rectangles depend on the relationship between height and width and can be supplied upon request.
Micro structure
It contains graphite 'A' type sheets, in accordance with ISO 945. The periphery zone contains 'D' type sheets and 'E' interdendritic graphite. The structure of the matrix, in nucleus, is mostly ferritic with less than 10 % of perlite in total.
Chemical composition
Element
|
Min.%
|
Max. %
|
C Si Mn S P - - - - Others / Alloys Fe |
2,95 2,1 0,55 0,04 0,1 - - - - - - |
3,45 2,9 0,75 0,07 0,2 - - - - Residual Balance |
Typical ranges: (Analysis at the discretion of the manufacturer)
Size range
Standard Measures
|
Dimensions and supply
|
25mm round? 600mm |
On request |
Square 30mm x 30mm? 510mm x 510mm |
On request |
Rectangular Up to 750mm x 560mm |
On request |
Gross supply of casting, turning, drilling, milling |
Too much machining according to general catalog |
Long Length Standard 3 meters |
Custom cut of parts |
General Physical Properties
Quality
|
Material Section
|
Expected values of tensile strength N / mm2
|
Hardness
(HB) |
Matrix
|
|
GG-20 EN 16482: 2014 IN GJL-200C | 20 <D? fifty | 155 | 120 - 200 | Predominantly Ferritic |
|
50 <D? 100 | 140 | ||||
100 <D? 200 | 125 | ||||
200 <D? 400 | 115 | ||||
400 <D? 700 | 115 |
Physical Properties
Quality | GG-20 - EN 16482: 2014 - EN GJL-200C |
Material Section | |
20 <D? fifty | |
50 <D? 100 | |
100 <D? 200 | |
200 <D? 400 | |
400 <D? 700 | |
Expected values of tensile strength N / mm2 | |
155 | |
140 | |
125 | |
115 | |
115 | |
Hardness (HB) | 120 - 200 |
Matrix | Predominantly Ferritic |
Formats
- GG-20 Rectangular Iron Profiles
- Round Iron Profiles GG-20
- GG-20 Square Iron Profiles
- GG-20 Iron Pipes