ASTM B473 Hex Bars, ASME SB473 Hexagon Bars, Alloy 20 Round Bars Supplier, Manufacturer and Exporter in India
Din 2.4660 Alloy 20 Hexagon Bars, UNS N08020 Round Bars, Alloy 20 Threaded Rods, Alloy 20 Cold Drawn Bars Suppliers in India.
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.
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
CORROSION RESISTANCE
- Excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids.
- Nickel content aids in chloride ion stress and corrosion resistance.
- Additions of Copper and Molybdenum provide resistance to hostile environments, pitting, and crevice corrosion.
- Chromium adds to its resistance of oxidizing environments such as nitric acids.
- Columbium reduces the effects of carbide precipitation.
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 TREAMENT
- 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'.
CHEMICAL 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 | — | — |
PHYSICAL PROPERTIES:
| Density | Specific Gravity | Specific Heat at 32 to 212°F |
Electrical Resistivity at 68°F |
Poissons Ratio | Magnetic Permeability at 68°F |
Modulus of Elasticity at 68°F |
|---|---|---|---|---|---|---|
| 0.292 lbs/in3 | 8.08 | 0.12 BTU/lb/°F | 644 ohm-cir mil/ft | 0.31 | 1.002 Mu | 29.3 x 106 psi |
HEX BARS PRODUCT OVERVEIW
| Stainless Steel Hex Bar | |
|---|---|
| Thickness Range of Flat Bar | 3/16″ thru 3″ Larger sizes available upon request |
| Grades | 202, 304/304L, 316/316L,304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410. In duplex grades, we can supply 2205 and 2507. Some nickel Alloy such as alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others Titanium alloys and copper alloys are also available |
INVENTORY:
| Size in Inches | Wt per Ft | Wt per 12′ | 303 | 304/L | 316/L | 416 |
|---|---|---|---|---|---|---|
| 3/16″ | 0.104 | 1.248 | X | X | X | X |
| 1/4″ | 0.180 | 2.160 | X | X | X | X |
| 5/16″ | 0.290 | 3.480 | X | X | X | X |
| 3/8″ | 0.410 | 4.920 | X | X | X | X |
| 7/16″ | 0.560 | 6.72 | X | X | X | X |
| 1/2″ | 0.740 | 8.880 | X | X | X | X |
| 9/16″ | 0.930 | 11.16 | X | X | X | X |
| 5/8″ | 1.150 | 13.80 | X | X | X | X |
| 11/16″ | 1.390 | 16.68 | X | X | X | |
| 3/4″ | 1.660 | 19.92 | X | X | X | X |
| 13/16″ | 1.950 | 23.40 | X | X | X | |
| 7/8″ | 2.300 | 27.60 | X | X | X | X |
| 15/16″ | 2.600 | 31.20 | X | X | X | X |
| 1″ | 2.90 | 34.80 | X | X | X | X |
| 1-1/16″ | 3.30 | 39.60 | X | X | X | X |
| 1-1/8″ | 3.700 | 44.40 | X | X | X | X |
| 1-1/4″ | 4.600 | 55.20 | X | X | X | X |
| 1-5/16″ | 5.100 | 61.20 | X | X | X | |
| 1-3/8″ | 5.600 | 67.20 | X | X | X | X |
| 1-7/16″ | 6.100 | 73.20 | X | X | X | |
| 1-1/2″ | 6.600 | 79.20 | X | X | X | X |
| 1-5/8″ | 7.800 | 93.60 | X | X | X | |
| 1-3/4″ | 9.030 | 108.36 | X | X | X | X |
| 1-7/8″ | 10.400 | 124.80 | X | X | X | X |
| 2″ | 11.80 | 141.60 | X | X | X | X |
| 2-1/4″ | 14.920 | 179.04 | X | X | X | X |
| 2-3/8″ | 16.920 | 203.04 | X | X | X | |
| 2-1/2″ | 18.42 | 221.04 | X | X | X | X |
| 3″ | 26.53 | 318.36 | X | X | X | X |
STAINLESS STEEL BAR VALUE ADDED OPTIONS:
| Stainless Steel Bar Value Added Options | |
|---|---|
| Stainless Steel Bar Polishing | Harsh Steel can polish nearly any stainless steel bar item to a #4 polish, #6 Polish, #7 polish or a #8 mirror finish. Stainless steel polished bar can also be cut to size. Pitt free surfaces can also be provided. |
| Heatreating & Annealing | Some grades of stainless steel bars can be heatreated to change the mechanical properties. Precipitation Hardening Stainless Steels such as 17-4PH can be heatreated. 410 stainless steel bar can also be heatreated. In some cases, secondary annealing 300 series stainless steel may be required depending on the application |
| Positive Material Identification (PMI) | Harsh Steel can perform PMI testing in house for most stainless steel grades, or we can work with independent labs to complete PMI in order to meet customer specifications. |
| UT Testing | In some cases, UT testing of the stainless steel bar may be required. We can assist you with this requirement. |
- Need 1,100 pieces of 7/8″ 303 round bar cut to 2-1/8″ long? We can process this job in a few days with our Amada CM100CNC with precise part tolerances
- Rapid cut of round bar 5/8″ thru 4″ dia
- Larger stainless bar cutting thru 26″ in diameter
- Multiple cutting stations allow us to ship cut stainless bar to size when you need it.
- Grinding and polishing available upon request
- Special heat treat requirements can also be supplied. Ask for details.
- Stainless round bars can also be polished or center-less ground to exact tolerances.
We export our ALLOY 20 HEX BARS products to Western and Eastern Europe, Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Spain, France, United Kingdom, Indonesia, Israel, Iran, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Netherlands, Brazil, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Russia, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia etc. We are sure that we also can cover the requirements requested by your company you can email us at harshsteel@ymail.com for your instant requirements.
