Q345D 50Mn Heavy Steel Forging Process Wind Power Equipment Variable Pitch
Q345D 50Mn Heavy Steel Forging Process Wind Power Equipment Variable Pitch
Specification
| Material elements | C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
| 50Mn | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | 0.25 | 0.30 | -- | 0.48-0.56 |
| 42CrMo4 | 0.38-0.43 | 0.15-0.35 | 0.60-0.90 | ≤0.035 | ≤0.040 | 0.80-1.10 | -- | 0.15-0.25 | - |
| Q345D | 0.13-0.20 | 0.17-0.37 | 1.20-1.60 | ≤0.030 | ≤0.030 | ≤0.30 | ≤0.30 | -- | |
| 17CrNiMo6 | 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 |
| Mechanical property | Dia.(mm) | TS/Rm(Mpa) | YS/Rp0.2(Mpa) | EL/A5(%) | RA/Z(%) | Type Of notch | Impact energy | HBW |
| 50Mn | Ø25 | ≥645 | ≥390 | ≥13 | ≥40 | V | ≥31 | ≤255HBS |
| 42CrMo4 | Ø15 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS |
| Q345D | Ø10 | 470-630 | ≥345 | ≥21 | -- | V | -20℃≥27 | ＝＝ |
| 18CrNiMo6 | Ø15 | ≥980 | ≥785 | ≥9 | ≥40 | V | ≥47 | ≤269HBS |
- High-precision dimensional tolerance;
- Excellent mechanical properties;
- Produce different dimension based on customer’s requirements;
- Advanced manufacture equipments and inspection devices;
- Excellent technical personality;
- Control the production procedure strictly;
- Pay attention on the package protection;
- Quality full service.
Products:
variable pitch supporting of wind power generation,eccentric bearing of wind power generation.
Wind power generation slewing bearing is after machining process,variable pitch bearing to control rotation speed,eccentric bearing to control wind direction.
Products reference:
| Material | Q345D,50Mn,42CrMo4,17CrNiMo6 |
| Max dia | 9000MM |
| Application |
Variable pitch and eccentric bearing is applied in main engine box of wind power generation equipment |
| Melting process | EF+LF+VD |
| Production process |
Forging+heat treatment+rough machining+roller bed harden+numerical control drill+finish machining |
| Forging ratio |
≥5 |
| Applicable standard | ASTM,ASME,DIN,JIS,ISO,BS,API,EN ,DIN |
| Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
|
Certification authority |
ISO,BV,SGS, IST, UL,CTI |
| Delivery term |
Rough machining(N+T);finish machining(Q+T) |
|
Test equipment |
Spectrograph,UT device,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,hardness test machine |
| 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. |
Commerce clause
| Max weight | 20T |
| MOQ | 1PC |
| Delivery time | 15-50 Days |
| Package | Plywood case,wood pallet,steel frame |
| Delivery term | FOB;CIF;CFR；DDU； |
| Payment term | T/T,LC |
| Type of shipping |
By ocean,air |
Process procedure:
Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment
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