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Niobium Round Bar is essential in chemical, electrical, electronic, and aviation sectors. It boasts a high melting point and remarkable corrosion resistance. Piping Material offers the ASTM B393 UNS RO4210 Rod in different sizes and forms, including tubes, rods, bars, and wires. The bar comes in diameters ranging from 0.125 inches to 5 inches.
Niobium Round Bar Niobium Round Bar, grade 1 and grade 2, is known for its strength. It is commonly used in aerospace, nuclear reactors, and anti-corrosive parts of acidic processing plants. The width of the bars can range from 15mm to 60mm, with lengths varying from 600mm to 1500mm. Grade 1 and grade 2 differ in their material composition.
The ASME SB393 Niobium Hex Bar and round bar contain impurities like tantalum, oxygen, nitrogen, carbon, silicon, iron, tungsten, molybdenum, titanium, aluminum, copper, chromium, nickel, and zinc. The Hot Rolled Niobium Round Bar consists of over 99.95% niobium. The bars adhere to ASTM B392-98 specifications with a diameter range of 4mm to 100mm. Niobium Square Bar options are also offered. Contact us for further details and pricing.
| Specification | R04200 ASTM B392 niobium round bar rod |
|---|---|
| Material Niobium Alloy | Pure and niobium alloy |
| Shape of Round BAr | rod, bar, cylinder, rectangle, square |
| UNS Grade | R04200, R04251, R04210, R04261, Nb2, Nb1 |
| Standard | GB/T 14824-2007 |
| Application |
|
| Elements | R04200 | R04210 |
| C | 0.01%max | 0.01%max |
| N | 0.01%max | 0.01%max |
| O | 0.015%max | 0.025%max |
| H | 0.0015%max | 0.0015%max |
| Zr | 0.02%max | 0.02%max |
| Ta | 0.1%max | 0.3%max |
| Fe | 0.005%max | 0.01%max |
| Si | 0.005%max | 0.005%max |
| W | 0.03%max | 0.05%max |
| Ni | 0.005%max | 0.005%max |
| Mo | 0.010%max | 0.020%max |
| Hf | 0.02%max | 0.02%max |
| Ti | 0.02%max | 0.03%max |
| Properties | Metric | Imperial |
| Tensile strength (at room temperature) | 275 MPa | 40 ksi |
| Modulus of elasticity | 105 GPa | 15250 ksi |
| Shear modulus | 38 GPa | 5511 ksi |
| Poissons Ratio | 0.4 | 0.4 |
| Hardness, Brinell | 736 | 736 |
| Hardness, Vickers | 1320 | 1320 |
| Hardness, Mohs | 6 | 6 |
Niobium Rod, Grade: Ro4200, Diameter: 1/2 inch
Niobium Round Rods, 0.060 to 0.125 inch
1 inch Stainless Steel Niobium Bar
Niobium Bar, Size: 6 Meter L
Niobium square bar, Length : 3 & 6 meter
500 MM TO 2000 MM Niobium Bar
| Grade | Tensile strength, psi (MPa), ≥ | Yield strength (0.2% offset), psi (MPa),≥ | Elongation in 1" gage length, %, ≥ |
| R04200, R04210 | 18000 (125) | 10500 (73) | 25 |
| Atomic Niobium Numbar: | 41 |
| Atomic Niobium Weight: | 92.9064 |
| Boiling & meltingPoint: | 5017K, 4927 0C, 8571 0F |
| Thermal Expansion in Celsius | 7.1 x 10-6/degrees C |
| Density Chart | 8.57 g/cc |
| Electrical Conductivity Chart | 13.2% IACS |
| Electrical Resistivity in 20 Deg Celcius | 15 microhms-cm |
| Melting Point in Celcius | 2750 K, 2468 0C, 4490 0F |
| Specific Heatin Celcius | 126 cal/g/degrees C |
| Thermal Conductivity in Degree | 523 cal/cm2/cm degrees C/sec. |
| Diameter or Width (mm) |
Weight per meter | Sectional Area | Perimeter | |||
| Square (kg) |
Round (kg) |
Square (cm²) |
Round (cm²) |
Square (cm) |
Round (cm) |
|
| 5.0 | 0.20 | 0.15 | 0.25 | 0.20 | 2.0 | 1.57 |
| 5.5 | 0.24 | 0.19 | 0.30 | 0.24 | 2.2 | 1.78 |
| 6.0 | 0.28 | 0.22 | 0.36 | 0.28 | 2.4 | 1.88 |
| 7.0 | 0.38 | 0.30 | 0.49 | 0.38 | 2.8 | 2.20 |
| 8.0 | 0.50 | 0.39 | 0.64 | 0.50 | 3.2 | 2.51 |
| 9.0 | 0.64 | 0.50 | 0.81 | 0.64 | 3.6 | 2.83 |
| 10 | 0.73 | 0.63 | 1.00 | 0.79 | 4.0 | 3.14 |
| 11 | 0.95 | 0.75 | 1.21 | 0.95 | 4.4 | 3.46 |
| 12 | 1.13 | 0.89 | 1.44 | 1.13 | 4.8 | 3.77 |
| 14 | 1.54 | 1.21 | 1.96 | 1.54 | 5.6 | 4.40 |
| 16 | 2.01 | 1.58 | 2.56 | 2.01 | 6.4 | 5.03 |
| 18 | 2.54 | 2.00 | 3.24 | 2.54 | 7.2 | 5.65 |
| 20 | 3.14 | 2.47 | 4.00 | 3.14 | 8.0 | 6.28 |
| 22 | 3.80 | 2.98 | 4.84 | 3.80 | 8.8 | 6.91 |
| 25 | 4.91 | 3.85 | 6.25 | 4.91 | 10.0 | 7.85 |
| 28 | 6.15 | 4.83 | 7.84 | 6.16 | 11.2 | 8.80 |
| 32 | 8.04 | 6.31 | 10.24 | 8.04 | 12.8 | 10.05 |
| 36 | 10.17 | 7.99 | 12.96 | 10.18 | 14.4 | 11.31 |
| 40 | 12.56 | 9.86 | 16.00 | 12.57 | 16.0 | 12.57 |
| 45 | 15.90 | 12.49 | 20.25 | 15.90 | 18.0 | 14.14 |
| 50 | 19.62 | 15.41 | 25.00 | 19.64 | 20.0 | 15.71 |
| 56 | 24.62 | 19.34 | 31.36 | 24.63 | 22.4 | 17.59 |
| 63 | 31.16 | 24.47 | 36.69 | 31.17 | 25.2 | 19.79 |
| 71 | 39.57 | 31.08 | 50.41 | 39.59 | 28.4 | 22.31 |
| 80 | 50.24 | 39.46 | 64.00 | 50.27 | 32.0 | 25.13 |
| Diameter | Weight Chart | Dia | Weight Chart |
|---|---|---|---|
| (mm) | per metre (kg) | (in) | per metre (kg) |
| 3mm | 0.06 | 1/8" | 0.06 |
| 4mm | 0.10 | 3/16" | 0.14 |
| 5mm | 0.16 | 1/4" | 0.25 |
| 6mm | 0.22 | 5/16" | 0.39 |
| 7mm | 0.30 | 3/8" | 0.56 |
| 8mm | 0.40 | 7/16" | 0.77 |
| 10mm | 0.62 | 1/2" | 1.00 |
| 12mm | 0.89 | 9/16" | 1.22 |
| 14mm | 1.22 | 5/8" | 1.56 |
| 15mm | 1.40 | 11/16" | 1.89 |
| 16mm | 1.59 | 3/4" | 2.25 |
| 18mm | 2.01 | 7/8" | 3.07 |
| 20mm | 2.48 | 1" | 4.03 |
| 22mm | 3.00 | ||
| 24mm | 3.57 | ||
| 25mm | 3.88 |
| Type | SIZES in milimeter | SIZES in inches | Tolerance |
|---|---|---|---|
| Peeled and Polished | 40.00 - 150.00 | 1.50 - 6.00 | h11, h11-DIN 1013 |
| Cold Drawn and Polish | 3.00 to 75.00 | 1/8 to3.00 | h8 to h11 |
| Cold Drawn and Ground | 10.00 to 75.00 | 5/6 to 2.50 | h8 to h11 |
| Peeled nd Ground | 20.00 - 50.00 | 3/4 - 2.00 | h9 to h11 |
Niobium Bars Standard lengths of 2000 mm up to 6000 mm.
| 5.0 | 45.0 |
| 6.0 | 50.0 |
| 7.0 | 55.0 |
| 8.0 | 60.0 |
| 9.0 | 65.0 |
| 10.0 | 70.0 |
| 12.0 | 75.0 |
| 16.0 | 80.0 |
| 20.0 | 90.0 |
| 25.0 | 100.0 |
| 30.0 | 130.0 |
| 35.0 | 160.0 |
| 40.0 | 200.0 |
| Price of ASTM B393 UNS RO4210 Rod | UNS R03400 Bar Price |
|---|---|
| Niobium Cold Rolled Round Bars | Rs 5,000/ Kg |
| Niobium Hex Bars | Rs 39,999/ Kg |
| ASME SB393 Niobium Rectangular bar | Rs 4,999/ Kilogram |