Die Forging Sae4140 42crmo4 Q+T Steel alloy shaft Long Thread Shaft
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Name:Open Die Forging Sae4140 42Crmo4 Q+T Steel long thread shafts
1. Products reference:
| Material | aisi4140 sae1045 aisi4340 42crmo4 |
| Max length | 9000MM |
| Application | Marine engine,diesel engine pull rod,connect to oil cylinder transmision 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. |
2, Custom properties
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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 |
3. Chemical Property
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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 |
4, 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
Packaging Details:Delivery Detail:
| wooden or steel package seaworthy packing |
| about 35 days from order or as per customer requirement |
FAQ
1.Trade term:FOB/CIF/CFR.
2. Payment term:T/T or L/C.
3. Inquiry: Please show me drawings and detail technical specifications
4. Delivery Detail:about 35 days from order
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