Large gear are widely used in port machinery,crane,quay crane,rail-mounted gantry,dredger,dredge ship,etc.
As expert of gear manufacture,Luoyang Jiayu has manufacture large gear exported to Spain, Colombia,Italy,and so on.
Following is large gear produced by us.
The material:ASTM 148-90-60(ZG28NiCrMo)
The chemical of ASTM 148-90-60(ZG28NiCrMo)
| CHEMICAL ANALYSIS % (ASTM 148-90-60) | ||||||||
| C | Mn | P | S | Si | Ni | Cr | Mo | Cu |
| 0.25-0.3 | 0.6-0.9 | 0.03 Max | 0.03 Max | 0.3-0.8 | 0.4-0.8 | 0.35-0.85 | 0.35-0.55 | / |
Mechanical properties of ASTM 148-90-60
| MECHANICAL PROPERTIES (ASTM A148-90-60) | ||||
| Tensile Strength Mpa | Yield Strength Mpa | Elongation 2″, % | Reduct Area % | Brinell Hardness |
| Min 630 | Min 420 | Min 20 | Min 40 | 230-270 HB |
Applications
Dredger,dredge ship