Alloy 20 Nickel Alloy Round Bar / Nickel Alloy Rod Hot Rolled 10 - 250mm UNS N08020 Alloy
Brand Name:DELTA
Certification:ISO
Model Number:Alloy 20
Minimum Order Quantity:500 kgs
Delivery Time:5 - 12 days based on the quantity
Payment Terms:L/C, T/T, Western Union
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Alloy 20 Nickel Alloy Round Bar / Nickel Alloy Rod Hot Rolled 10 - 250mm UNS N08020 Alloy
| Form | Nickel Alloy Bars |
| Grade | Alloy 20 |
| Outer Diameter (mm) | 6mm-250mm or according to customer’s requirement |
| Length | 1meter, 3 meters and 6 meters or customer’s requirement |
| Standard | ASTM, ASME, EN, JIS, DIN, GB/T, etc |
| Process Method | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar & Rod |
| Surface Finish | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Other Grade | Hastelloy : B2 B3 C22 C276 G30 X Incoloy: 800 800H 800HT 825 925 A286 330 Inconel: 600 601 617 625 718 725 X-750 Monel: 400 k-500 |
| Price Item | EXW FOB CFR CIF |
| Payment | 30% TT inadvance, 70% TT Balance against copy of B/L |
| Delivery Time | It depends on your bars order total quantity and stock of these mother origin materials. Usually from the start of the order to the completion of production is about 3-4 weeks |
| Quality Requirement | Mill test certificate will be offered with shipment, the third party inspection is available |
| Main Markets | Europe, North America, Middle East, Southeast Asia |
| Metal Test | High or low temperature impact test, metallographic analysis |
| Chemical Analysis | As nickel alloy C276 bars standard |
GENERAL PROPERTIES
Alloy 20 (UNS N08020) is an austenitic, nickel-iron-chromium based
super alloy with additions of Copper and Molybdenum which provide
resistance to hostile environments, pitting, and crevice corrosion.
It is also stabilized with Columbium to minimize carbide
precipitation during welding. Alloy 20 appears to fall between both
the stainless and nickel categories as it contains characteristics
of both. It was designed for maximum resistance to acid attack and
demonstrates superior resistance to stress-corrosion cracking in
boiling 20% to 40% sulfuric acid, and also has excellent general
corrosion resistance to sulfuric acid and to chloride stress
corrosion cracking. Alloy 20 has good mechanical properties at both
ambient and elevated temperatures, up to approximately
930°F (500°C) and is readily fabricated by usual industrial
processes.
Specifications: UNS N08020
hemical Properties:
| TYPE | C | Cr | Cu | Fe | Mn | Mo | Ni | P | Si | S | Nb (Cb) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 20 UNS N08020 | 0.07 max | min: 19.00 max: 21.00 | min: 3.00 max: 4.00 | Balance | 2.00 max | min: 2.00 max: 3.00 | min: 32.00 max: 38.00 | 0.045 max | 1.00 max | 0.035 max | 8 XC min 1.00 max |
Mechanical Properties:
| Stabilized-Annealed Condition | ||||||
|---|---|---|---|---|---|---|
| Product Form | Tensile Strength, ksi (min) | Yield Strength, 0.2% offset ksi (min) | Elongation % (min) | Reduction of Area % (min) | Hardness Brinell (max) | Hardness Rockwell B (max) |
| Plate, Sheet | 80 | 35 | 30 | — | 217 | 95 |
| Bar | 80 | 35 | 30 | 50 | — | — |
WELDABILITY:
- All commonly used welding methods, with the exception of oxyacetylene, can be successfully used.
- The presence of Columbium tends to minimize the precipitation of carbides in the heat-affected zone, so the material may be used in the as-welded condition in most cases.
- Pre-heating is not required.
HEAT TREATMENT:
- Cannot be hardened by heat treatment.
- Stabilized-annealing is done at 1750-1850°F, followed by water quenching.
- Stress relieving can be performed on annealed material up to 950°F.
PROCESSING – HOT FORMING:
- Heat uniformly to a starting temperature of 2100-2225°F. Finish forging before the stock drops below 1800°F.
- In order to stabilize the material after hot working operations, reheat at 1750-1850°F for a minimum of 1/2-hour per one inch of thickness and water quench.
PROCESSING – COLD FORMING:
- Alloy 20 has good cold formability. Bending, drawing and pressing, and other forming operations that occur in the production of fabricated items are readily performed.
- Alloy 20 can normally be press brake bent over a radius twice the materials thickness.
- After cold reductions of more than 15%, a final stabilizing annealing is often required.
MACHINABILITY:
- Because of Alloy 20′s high work-hardening rate the following are
required:
- Only low surface-cutting speeds are possible compared with low-alloy standard austenitic stainless steel.
- Tools should be engaged at all times.
- Heavy feeds are important in getting below the work-hardened ‘skin’.
APPLICATIONS:
Alloy 20 was originally designed for use in sulfuric acid related applications; however, it is now frequently used in a wide variety of industries. Applications that commonly use Alloy 20 include:
- Chemical and allied industries
- Food and dye production
- Heat exchangers
- Explosives
- Tanks
- Valves
- Pickling racks
- Manufacture of synthetic rubber and plastics
- Pharmaceuticals
- SO2 scrubbers and other severe environments
Alloy 20 Nickel Alloy Round Bar / Nickel Alloy Rod Hot Rolled 10 - 250mm UNS N08020 Alloy
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