Carbon Steel QT Heating Treatment Open Die Forging Round Bar Alloy
18CrNiMo7-6 410 4340 Heating Treatment Open Die Forging Round Bar Alloy /Carbon Steel QT
Products:
Forging round bar, forging round, carbon steel forging, stainless steel forging, alloy steel forging, nickel-based alloy forging, high temperature alloy forging, high manganese steel forging.
Products reference:
| Material | 4140,4340,18CrNiMo7-6,410,420,17-4PH,15-5PH,625,628 |
| Forging equipment | 8000T open die hydropress |
| Application |
Large scale forging QT is widely used for all forging QT after rough machining,enhance mechanical property |
| Melting process | EF+LF+VD |
| Production process |
Forging+heat treatment+rough machining+QT+finish machining |
| Forging ratio |
≥3.5 |
| Appplicable standard | ASTM,ASME,DIN,JIS,ISO,BS,API,EN |
| Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
| Certification authority | ISO,BV,SGS, IST, UL,CTI |
| Inspection |
Plant self inspection or third party inspection,shipment after all inspection items are qualified |
| Delivery term |
Rough machining(N+T);finish maching(Q+T) |
|
Test equipment |
Spectrograph,ut device,tensile and compact test machine,metalloscope,outside microscope,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. |
Bar forging heating is widely used in the following industries:
Metallurgical industry, foundry industry, forging industry, heat treatment industry, petroleum machinery industry, mining and coal mining machinery industry, steel pipe, stainless steel pipe industry, machinery, thermal assembly processing industry, chemical industry, HVAC, food industry, steel strand, steel wire, cable industry.
| Custom properties | |||||||||
| Material elements | C | Si | Mn | P | S | Cr | Ni | Mo | Others |
| 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 | - |
| 18CrNiMo7-6 | 0.15-0.21 | 0.17-0.35 | 0.50-0.90 | ≤0.025 | ≤0.025 | 1.50-1.80 | 1.40-1.70 | 0.25-0.35 | |
| 4340 | 0.38-0.43 | 0.15-0.35 | 0.60-0.80 | ≤0.035 | ≤0.040 | 0.70-0.90 | 1.65-2.00 | 0.20-0.30 | - |
| 410 | ≤0.15 | ≤1.00 | ≤1.00 | ≤0.035 | ≤0.025 | 11.5-13.5 | |||
| 420 | 0.16-0.25 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 12.0-14.0 | ≤0.75 | ||
| Mechanical property | Dia.(mm) | TS/Rm(Mpa) | YS/Rp0.2(Mpa) | EL/A5(%) | RA/Z(%) | Type Of notch | Impact energy | HBW | |
| 4140 | Ø15 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS | |
| 18CrNiMo7-6 | Ø15 | ≥980 | ≥785 | ≥9 | ≥40 | V | ≥47 | ≤269HBS | |
| 4340 | Ø15 | ≥980 | ≥835 | ≥12 | ≥55 | V | ≥78 | ≤179HBS | |
Advantage
High-precision dimensional tolerance;- Excellent mechanical properties;
- Produce different dimension based on customer’s requirements;
- Advanced manufacture equipments and inspection devices;
- Excellent technical personality;
- Control the production procedure strictly;
- Pay attention on the package protection;
- Quality full service.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.