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50Mn / DG20Mn / 25Cr2Ni4MoV Heavy Steel Forgings ASME Marine Shaft Forging
Products:
Marine forging, ship shaft, screw shaft, rudder stock, bearing pintle, cardan shaft, intermediate shaft
Products reference:
|
Material |
50Mn,DG20Mn,25Cr2Ni4MoV,34CrNiMo6 |
|
Max. weight |
40T |
|
Apply for |
Ship, cargo, steamer engine fittings, dock port machinery parts. |
|
Melting process |
EF+LF+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 |
ABS/ DNV/ BV/ GL/KR/ CCS/ LR/ NK/ RINA/ RS. |
|
Delivery terms |
Rough machining(N+T); finish machining(Q+T) |
|
Test equipment |
Spectrograph, UT device, tensile and impact 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 | V |
| 50Mn | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | -- | - |
| DG20Mn | 0.17-0.24 | 0.17-0.34 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | -- | |
| 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 |
