Inconel 625 Superheater Tubes 6-219mm Weld Overlay Pipe
Brand Name:Cheonny
Certification:ISO, ASME, EN
Model Number:inconel overlay superheater
Minimum Order Quantity:10 tons
Delivery Time:30 working days
Payment Terms:L/C, T/T, Western Union
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N0.1, Dongli Road, Donglai, Zhangjiagang City
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Product Details
Inconel 625 Cladding Boiler superheater Steel Tube Overlay
Cladding instruction
Our company mainly adopts gas shielded surfacing technology. Compared with other surfacing methods, gas shielded surfacing has the following advantages:
(1) Gas shielded welding is a kind of open arc welding. During the welding process, the heating and melting of arc and molten pool can be clearly seen, which is convenient to find problems and timely adjust, so the welding process and weld quality are easy to control.
(2) Gas shielded welding usually does not need to use tubular welding wire, so there is no slag in the welding process and no slag cleaning after welding, which saves the auxiliary labor hours of slag cleaning and reduces the welding cost.
(3) Wide range of application, high production efficiency, easy to carry out all-position welding and realize mechanization and automation.
(4) Suitable for welding most metal and alloy, most suitable for welding carbon steel and low alloy steel, stainless steel, heat resistant alloy, aluminum and aluminum alloy, copper and copper alloy and magnesium alloy.
There is a wide range of weldable metal thicknesses, with the thinest about 1mm and the thickest almost unlimited.
(5) The adaptability is also strong, and the welding efficiency is the highest when flat welding and horizontal welding.
The role of surfacing:
(1) Can effectively improve wear resistance and corrosion resistance, so as to prolong the life of parts,
(2) easy to make a very hard metal surface on a good toughness base metal, from where to obtain the best performance,
(3) The economical use of precious alloy materials, reduce manufacturing costs,
(4) Can save the cost of maintenance and replacement of parts for enterprises,
Inconel cladding for tube is a cost-effective engineered solution against corrosion/ erosion attacks from combustion products in boilers and from the hot, exhaust flue gas stream in waste heat recovery systems. Inconel Cladding technique extends the operational life of tubes and waterwall panels, thus avoiding or delaying costly replacements.
Inconel 625 is a high strength material with extremely high corrosion resistance and oxidation resistance. Therefore, can be competent for aerospace and chemical processing industry. This super alloy has high mechanical strength and hardness at low temperatures of about 2000oF / 1093oC. The alloy has excellent resistance to chloride ion stress corrosion cracking. It is nonmagnetic in nature. Due to its toughness, alloy 625 is suitable for degrading chloride ions.
The excellent corrosion resistance of Inconel 625 is due to the presence of molybdenum, niobium and refractory metal solution. The presence of nickel and chromium in Inconel 625 provides excellent oxidation resistance. Nickel and molybdenum prevent non-oxidative erosion, while niobium stabilizes the alloy to prevent sensitization during welding.
Material: NiCr22Mo9NbNi6625
| Heat Analysis | C | S | N | Cr | Ni | Mn | Si | Mo |
| 0.01 | 0.001 | 0.019 | 22.24 | R64.31 | 0.01 | 0.07 | 9.22 | |
| Ti | Nb | Cu | Fe | P | Al | Co | Ta | |
| 0.20 | 3.55 | ＜0.01 | 0.19 | 0.003 | 0.08 | 0.01 | ＜0.01 |
The most common problem in surfacing is cracking. The main methods to prevent cracking are as follows
1. Preheat before welding, control interlayer temperature and slow cooling after welding
2. Stress relief heat treatment after welding
3. Avoid multi-layer surfacing and use low hydrogen surfacing electrode
4. If necessary, build up the transition layer between the surfacing layer and the base metal (use the electrode with low carbon equivalent and high toughness)
Attention must be paid to butt welding:
1. According to the use requirements, reasonable selection of surfacing alloy
2. Reduce the dilution ratio of base metal as much as possible
3. Improve productivity
4. It is expected that the hardfacing metal and base metal have similar expansion coefficient and phase transformation temperature
Purpose of Inconel Cladding on surface :
1. Extend service life
2. Reduce costs
3. Reduce spare parts
4. Reduce maintenance
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RFQ
Q: Are you trading company or manufacturer ?
A: We are manufacturer
Q: How long is your delivery time?
A: Generally 5-10 days if the goods are in stock. or 25-35days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample extra
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us
| NiCr22Mo9NbNi6625 |
Inconel 625 Superheater Tubes 6-219mm Weld Overlay Pipe
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