C3771 (brass for forging)
Alloy number | Characteristic | Use |
C3771
(brass for forging) | C3771 is said to be brass for forging and is the most suitable brass for forging between the heat. I can forge the thing of the complicated shape easily, and the internal organization becomes the minute metal crystal, too. Because a forging organization is destroyed by extrusion enough, and a metal flow occurs along a forging side, a mechanical property is very superior and is used for a high pressure valve, the parts that a high mechanical property is required, a rotor bar. | High pressure valve, the parts that a high mechanical property is required, rotor bar |
Chemical ingredient
Alloy number | Cu | Pb | Al | Mn | Ni | Fe | Sn | As | Zn |
C3771
(brass for forging) | 57.0 ... 61.0 | 1.0 ...
2.5 | ― | ― | 0.20 The following | Fe+Sn 1.00% or less | 0.02 The following | Residue | |
(percent by weight)
Chemical ingredient of the cadmium 75 ppm or less brass stick
Alloy number | Name | Chemical ingredient (%) | ||||||
Cu | Pb | Fe | Se | Al | Zn | Cd | ||
C3771 (CdL) | C3771 | 57.0 ...
61.0 | 1.0-2.5 | Fe+Sn 1.00% or less | ― | Residue | 75 ppm
The following | |
Characteristic (reference level)
Alloy number | Quality | Tensile strength
N/mm² | Growth
％ | Hardness
HV(5) | Cutting characteristics | The conductivity
IACS % | Machine workability | Bending characteristics | The extruded nature |
C3771
(brass for forging) | Heat interval
Cold | 425
445 | 40
37 | 142
148 | 65 | 25.2 | 80
90 | △
X | 110 |
A note: ◎The X that is ○ suitable △ possibility suitable most is impossible
Manufacturing characteristics (I suppose it to be excellent cut brass = 100) The extruded nature (I suppose it to be excellent cut brass = 100)
Diameter of production range by the cross-section's greatest circumscribed circle
Alloy name | As pushing out | Drawing | ||
Straight angle | Variant | Straight angle | Variant | |
C3771 (brass for forging) | 75 | 75 | 60 | 60 |
(unit mm)
Production range minimum section and wall thickness by the cross-section
Alloy name | As pushing out | Drawing | ||||||
Straight angle | Variant | Straight angle | Variant | |||||
Area
㎜² | Thickness
㎜ | Area
㎜² | Thickness
㎜ | Area
㎜²
| Thickness
㎜
| Area
㎜²
| Thickness
㎜
| |
C3771 (brass for forging) | 24 | 3 | 24 | 3 | 27 | 3 | 27 | 3 |
(unit mm)