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34CrNiMo6 / 18CrNiMo7-6 / 4140 Heavy Steel Forgings Wind Turbine Main Shaft
Products:
wind power main shaft/shaft, wind power tubine shaft, coupling, main shaft forging, wind power forging and alloy steel shaft.
Products reference:
|
Material |
34CrNiMo6,18CrNiMo7-6,4140 |
|
Max. power |
5MW |
|
Apply for |
Its used in wind power generator box play the role of transmission. The turning fan drive the main shaft, and ganged the speed changer. |
|
Melting process |
LF+EF+VD |
|
Process technology |
Forging+heat treatment+rough machining+finish machining |
|
Forging ratio |
≥3.5 |
|
Applicable standard |
ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
|
Executive standard |
JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
|
Certification authority |
ISO9001:2008,BV,GSG,IST,UL.CTI |
|
Delivery terms |
Rough machining(N+T); finish machining(Q+T) |
|
Test equipment |
Spectrograph, UT device, tensile and compact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
|
Service |
Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
Custom properties
|
Material elements | C | Si | Mn | P | S | Cr | Ni | Mo |
Others |
| 34CrNiMo6 | 0.30-0.38 | ≤0.040 | 0.50-0.80 | ≤0.035 | ≤0.035 | 1.30-1.70 | 1.30-1.70 | 0.15-0.30 | |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.60-0.90 | ≤0.035 | ≤0.040 | 0.80-1.10 | -- | 0.15-0.25 | - |
| 18CrNiMo7-6 | 0.15-0.21 | 0.17-0.35 | 0.50-0.90 | ≤0.025 | ≤0.025 | 1.50-1.80 | 1.40-1.70 | 0.25-0.35 |
|
Mechainal properties |
Dia.(mm) |
TS/Rm(Mpa) |
YS/Rp0.2(Mpa) |
EL/A5(%) |
RA/Z(%) |
Type Of notch |
Impact energy |
HBW |
| 34CrNi 34CrNiMo6 / 18CrNiMo7-6 / 4140 Heavy Steel Forgings Wind Turbine Main Shaft |
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