4140 Q345D 50Mn Industrial Forged Flanges Large Scale 9000MM Diameter
Brand Name:HUIXUAN
Certification:ASTM，ASME，DIN，JIS，ISO，BS，API，EN
Model Number:30T
Minimum Order Quantity:1 piece
Delivery Time:15-50 days
Payment Terms:L/C, T/T
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A 509,HuaJian Mansion,Zhangjiagang City,JiangSu Province,China
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Product Details
4140 Q345D 50Mn Industrial Forged Flanges Large Scale 9000MM Diameter
Products:
Large scale industrial flange,pressure vessel flange,engineering
flange,construction material flange,petroleum pipe line
flange,flange pipe fitting,valve flange,water pump flange,reducer
flange,fasten flange.
Products reference:
| Material | Q345D,50Mn,4140,18CrNiMo7-6,304L |
| Max dia | 9000MM |
| Application | Various large scale industrial equipment parts |
| Melting process | EF+LF+VD |
| Production process | Forging+heat treatment+rough machining+QT |
| Forging ratio | ≥5 |
Applicable | ASTM,ASME,DIN,JIS,ISO,BS,API,EN ,DIN |
Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
Certification authority | ISO,BV,SGS, IST, UL,CTI |
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 | Cu |
| 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 | - |
| Q345D | 0.13-0.20 | 0.17-0.37 | 1.20-1.60 | ≤0.030 | ≤0.030 | ≤0.30 | ≤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 | |
| 50Mn | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | 0.25 | 0.30 | -- | 0.48-0.56 |
| 304L | 0.030 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | - |
Mechanical property | Dia.(mm) | TS/Rm(Mpa) | YS/Rp0.2(Mpa) | EL/A5(%) | RA/Z(%) | Type Of notch | Impact energy | HBW |
| 4140 | Ø10 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS |
| Q345D | Ø10 | 470-630 | ≥345 | ≥21 | -- | V | -20℃≥27 | ＝＝ |
| 18CrNiMo7-6 | Ø15 | ≥980 | ≥785 | ≥9 | ≥40 | V | ≥47 | ≤269HBS |
| 50Mn | Ø25 | ≥645 | ≥390 | ≥13 | ≥40 | V | ≥31 | ≤255HBS |
| 304L | Ø15 | ≥520 | ≥205 | ≥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 Shipment
Commerce clause:
| Max weight | 30T |
| MOQ | 1PC |
| Delivery time | 15-50Days |
| 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
- 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.
4140 Q345D 50Mn Industrial Forged Flanges Large Scale 9000MM Diameter
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