25Cr2Ni4MoV SUS 316L Carbon Steel Forgings ASTM Marine Propeller Shaft
25Cr2Ni4MoV SUS 316L Carbon Steel Forgings ASTM Marine Propeller Shaft
Products:
Marine forging,marine propeller shaft,ABS ship inspection propeller shaft,BV ship inspection propeller shaft,SUS316L,propeller forging,ship inspection propeller shaft,large scale high precision marine propeller shaft.
Various forging of marine product,shaft type ship inspection forging,propeller shaft classification society certification,can be approved by big ten classification society certification.
Products reference:
| Material | 50Mn,25Cr2Ni4MoV,34CrNiMo6,SUS316L,35# |
| Max weight | 50T |
| Application |
The device can transfer engineer rotation power into propulsion |
| 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 |
ABS,DNV,BV,GL,KR,CCS,LR,NK,RINA,RS. |
|
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. |
Custom properties
| Material elements | C | Si | Mn | P | S | Cr | Ni | Mo | V |
| 50Mn | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | -- | - |
| 35# | 0.32-0.39 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ||
| 25Cr2Ni4MoV | ≤0.25 | ≤0.23 | ≤0.53 | ≤0.006 | ≤0.004 | ≥1.62 | ≥3.75 | ≥0.33 | ≥0.09 |
| 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 | |
| 316L | 0.030 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| 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 |
| 35# | Ø25 | ≥530 | ≥315 | ≥20 | ≥45 | V | ≥55 | ≤197HBS |
| 34CrNiMo6 | Ø15 | 750-900 | 450-600 | ≥13 | ≥55 | V | -40℃≥20 | ≤269HBS |
| 316L | Ø15 | ≥485 | ≥170 | ≥30 | ≥40 | ≤187HBS |
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
| MOQ | 1PC |
| Delivery time | 30-60 days |
| Package | wood pallet,steel frame |
| Delivery term | FOB;CIF;CFR；DDU； |
| Payment terms | T/T,LC |
| Type of shipping |
By ocean,air |
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