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Product Details:
Payment & Shipping Terms:
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| Forging Ratio: | ≥3.5 | MOQ: | 1PC |
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| Molding Style: | Forging | Max Weight: | 30T |
| Delivery Time: | 30-50Days | Melting Proce: | EF+LF+VD |
| Material: | Steel | Heating Treatment: | N+T Q+T |
| High Light: | big Gear Ring Alloy Steel Forging,Heavy Duty Alloy Steel Forging,Heat Treatment Alloy Steel Forging |
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Heavy Duty Big Gear Ring Forging Heat Treatment Alloy Steel
Products:
Engineering gear ring,annular gear ring,outer gear ring.
Engineering machinery’s gear ring contains annular and outer gear,after gear nitriding quenching treatment to reach better gear hardness and finish surface.
Products reference:
| Material | 4340,20CrMnMo,34CrNiMo7-6,18CrNiMo7-6 |
| Forging equipment | 5000MM numerical control ring rolling machine |
| Application |
Engineering machinery transmission gear ring,annular and outer gear ring coordinate to transfer main engineer |
| Melting process | EF+LF+VD |
| Production process |
Forging+heat treatment+rough machinning+QT+hobbing+gear grinding+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 | ISO,BV,SGS, IST, UL,CTI |
| Delivery terms |
Rough machining(N+T);finish machining(Q+T),nitriding quenching |
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Test equipment |
Spectrograph,UT device,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,trilinear coordinatre measuring machine,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 | Others |
| 20CrMnMo | 0.17-0.23 | 0.17-0.37 | 0.90-1.20 | 0.035 | 0.035 | 1.10-1.40 | 0.30 | 0.20-0.30 | 0.17-0.23 |
| 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 | |
| 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 | - |
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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 |
| 20CrMnMo | Ø15 | ≥1180 | ≥885 | ≥10 | ≥45 | V | ≥55 | ≤217HBS |
| 34CrNiMo6 | Ø15 | 750-900 | 450-600 | ≥13 | ≥55 | V | -40℃≥20 | ≤269HBS |
| 18CrNiMo7-6 | Ø15 | ≥980 | ≥785 | ≥9 | ≥40 | V | ≥47 | ≤269HBS |
| 4340 | Ø15 | ≥980 | ≥835 | ≥12 | ≥55 | V | ≥78 | ≤179HBS |
Process procedure:
Forging process flow quality control:
Commerce clause
| Max weight | 30T |
| MOQ | 1PC |
| Delivery time | 30-50Days |
| Package | Plywood case,wooden pallet,steel frame |
| Delivery term | FOB;CIF;CFR；DDU； |
| Payment term | T/T,LC |
| Type of shipping |
By ocean,air |
Advantage
Contact Person: Mr. Arnold
Tel: +86-15-15-15-81-878
Fax: 86-512-58360318
| Sales office:A 509,HuaJian Mansion,Zhangjiagang City,JiangSu Province,China | |
| +86--13914905080 | |
| arnoldxue@163.com | |
