Name: Forging 4140 35CrMo, 9Cr2Mo Steel Mandrel Shaft with CNC
Machining Surface
Comapny Information:
We are a leading company for providing all kinds of forging steel
products more than 10 years. Our company located in Wuxi Jiangsu,
which is near the Shanghai port. The heavy forging: forged ring,
fogred shaft, steel roller, steel flange, or gear is widely used
for various industries. For example: Metallurgy, mining, power
station and so on. The manufacturing equipment is 185MN or 100MN
hydraulic press, the forging ratio >4.5, the technical condition
is in accordance with the standard of ASTM, EN, DIN, JIS, ASME or
GB etc.
The product can be provided as per your drawing or specified
requirements.
Products reference:
| Material | AISI4140 aisi4340 sae1045 st52 S355jr 50Mn |
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| Forging equipment | 3000T open die hydropess |
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| Application | Supporting roll of veneer reeling machine to rotate up roll and low
roll,thus to bend the sheet continuously |
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| Melting process | EF+LF+VD |
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| Production process | Forging+heat treatment+rough machining+QT |
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| Forging ratio | ≥3.5 |
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| Applicable standard | ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
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| Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
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| Certification authority | ISO9001:2008,CE,SGS |
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| Delivery term | Rough machining(N+T);finsh machining(Q+T) |
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Test equipment |
Spectrograph,UT device,tensile and compact test
machine,metalloscope,outside micrometer,bore dial
indicator,hardness test machine |
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| 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. |
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Custom properties
| Material elements | C | Si | Mn | P | S | Cr | Ni | Mo |
Others |
|---|
| 50Mn | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | |
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| 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 | - |
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| 60CrMo | 0.55-0.65 | 0.17-0.30 | 0.450-0.80 | ≤0.020 | ≤0.015 | 0.50-0.80 | ≤0.25 | 0.20-0.40 | |
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| 9Cr2Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.40 | ≤0.025 | ≤0.025 | 1.70-2.10 | ≤0.25 | 0.20-0.40 | |
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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 |
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| 50Mn | Ø10 | ≥645 | ≥390 | ≥13 | ≥40 | V | ≥39 | ≤255HBS |
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| 4140 | Ø10 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS |
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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.
Advantage:
1.High-precision dimension tolerance;
2.Excellent mechanical properties;
3.Produce different dimension based on customer’s requirements;
4.Advanced manufacture equipment and inspection devices;
5.Excellent technical personality;
6.Control the production procedure strictly;
7.Pay attention on the package protection;
8.Quality full service.
