20SiMn / 35SiMn / 4140 Water Turbine Generator Shaft Forging DIN Standard
Products:
water turbine main shaft,water power shaft,water turbine generator shaft,electrical machinery,hydraulic machinery,Auxiliary equipment.
Products reference:
| Material | 20SiMn,35SiMn,4140, |
| Forging equipment | 8000T open die hydropress |
| Application | Main core parts of hydro electrical generator,transmission and connection function |
| Melting process | EF+LF+VD |
| Production process | 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,SGS, IST, UL,CTI |
| Delivery terms | Rough machining(N+T);finish machining(Q+T) |
| Test machine | Spectrograph,UT device,tensile and compact machine,metalloscope,outside micrometer,bore dial indicator |
| 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 | |
| 20SiMn | 0.16-0.22 | 0.60-0.80 | 1.00-1.30 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.30 | -- | - |
| 35SiMn | 0.32-0.40 | 1.10-1.40 | 1.10-1.40 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.30 | - | 0.32-0.40 |
| 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 | - |
| Mechanical property | Dia.(mm) | TS/Rm(Mpa) | YS/Rp0.2(Mpa) | EL/A5(%) | RA/Z(%) | Type Of notch | Impact energy | HBW |
| 20SiMn | Ø15 | ≥450 | ≥255 | ≥14 | ≥45 | U | ≥39 | ≤229HBS |
| 35SiMn | Ø15 | ≥885 | ≥735 | ≥15 | ≥45 | V | ≥59 | ≤229HBS |
| 4140 | Ø10 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS |
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
Commerce clause
| Max weight | 50T |
| MOQ | 1PC |
| Delivery time | 30-50 days |
| Package | Wooden pallet,steel frame |
| Delivery terms | FOB;CIF;CFR；DDU； |
| Payments terms | T/T,LC |
| Type of shipping | By ocean,air |
Features of our products
- 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.
Keywords
Main shaft of water turbine is auxiliaries equipment of hydro electrical generator,use water power to rotate water turbine,by means of main shaft of water turbine and magnet yoke,thrust head,etc,those key parts’connection that transfer water energy to mechanical energy,If connect generator to water turbine,as water turbine rotates wil generate power,thus mechanical energy transfer to electrical power.
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20SiMn / 35SiMn / 4140 Water Turbine Generator Shaft Forging DIN Standard Images
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