34CrNiMo6 Marine Precision Forging Carbon Steel Rudder Stock Large Scale
Negotiable /Ton
Min.Order:1 Ton
JIANGSU HUI XUAN NEW ENERGY EQUIPMENT CO.,LTD
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34CrNiMo6 Marine Precision Forging Carbon Steel Rudder Stock Large Scale
Products:
Marine product,marine rudderstock,ABS ship inspection rudderstock,BV ship inspection rudder stock,SUS316L rudderstock,ship inspection rudderstock,large scale high precision marine rudderstock.
Marine forging product,shaft ship inspection forging,rudderstock classification society certification,can be approved by big ten classififcation society.
Products reference:
Material | 50Mn,25Cr2Ni4MoV,34CrNiMo6,SUS316L,35# |
Max weight | 50T |
Application |
The shaft from cabin extend to outboard connect with propeller,rudderstock is the shaft that rubber blade rotates,used for bearing and transfering 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 |
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 ShipmentCommerce clause