UNS N10276 Rod Bars, popularly referred to as Hastelloy C276, is an alloy of nickel, chromium, molybdenum, tungsten designed for extremely harsh corrosive conditions. The low levels of carbon and silicon help avoid precipitation of carbides when welding which facilitates good corrosion resistance in the welded parts without requiring solution heat treatment after welding. The international designation of this alloy is W.Nr. 2.4819 and NiMo16Cr15W and is available as per ASTM B574 / ASME SB574 standards. UNS N10276 is supplied in solution annealed condition and is not precipitation hardenable. Its performance depends on alloy composition only. It finds many applications in chemical process equipment and other equipment operating under harsh conditions. Amardeep Steel supplies UNS N10276 Round Bars with reliable quality and documentation.
Technical Data
Specifications of UNS N10276 round bar
Parameter | Detail Specification |
|---|---|
Alloy Name | Hastelloy C276 / Alloy C276 (UNS N10276) |
Werkstoff Nr. / EN Name | 2.4819 / NiMo16Cr15W |
Standard Specifications | ASTM B574 / ASME SB574 (Rod & Bar for General Corrosive Service) |
Product Forms | Round bar; Hex, Square, and Flat bar available on request |
Supply Condition | Solution Annealed |
Surface Finishes | Hot finished / peeled, cold drawn, bright / centreless ground, turned and polished |
Diameter Range | 3 mm to 88.9 mm (1/8" to 3.5") per ASTM B574; Forged bar up to 500 mm per ASTM B564 |
Length & Cutting | Random lengths (3m to 6m), Fixed cut-to-length service available |
Certification & Inspection | EN 10204 3.1 MTC, PMI, NACE MR0175 / ISO 15156, TPI on request |
Chemical Compositions of UNS N10276 Round Bar
Element | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Iron (Fe) | Tungsten (W) | Cobalt (Co) | Manganese (Mn) | Vanadium (V) | Carbon (C) | Silicon (Si) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Standard Limit (wt %) | Remainder | 14.5 – 16.5 | 15.0 – 17.0 | 4.0 – 7.0 | 3.0 – 4.5 | 2.5 max | 1.0 max | 0.35 max | 0.010 max | 0.08 max | 0.04 max | 0.03 max |
Mechanical Properties of UNS N10276 Round Bar
Mechanical Property | Imperial Units | Metric Units |
|---|---|---|
Yield Strength (0.2% Offset), min | 41 ksi (41,000 psi) | 283 MPa |
Tensile Strength, min | 100 ksi (100,000 psi) | 690 MPa |
Elongation in 2 in. (50.8 mm) or 4D, min | 40 % | 40 % |
UNS N10276 Round Bar Physical Properties
Physical Property | Value |
|---|---|
Density | 8.89 g/cm³ (0.321 lb/in³) |
Melting Range | 1325°C – 1370°C (2415°F – 2500°F) |
Modulus of Elasticity (25°C / 77°F) | 205 GPa (29.8 x 10⁶ psi) |
Thermal Conductivity (25°C / 77°F) | 10.2 W/m·K (71 BTU·in/ft²·h·°F) |
Mean Coefficient of Thermal Expansion (24°C–100°C) | 11.2 µm/m·°C (6.2 µin/in·°F) |
Electrical Resistivity (25°C / 77°F) | 1.30 µΩ·m (51.2 µΩ·in) |
Weight Chart of SB 574 N06022 Round Bar
Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
|---|---|---|---|---|---|---|---|---|
3mm | 0.017 | 0.055 | 1/4" | 0.076 | 0.249 | 1-3/8" | 2.303 | 7.550 |
1/8" | 0.019 | 0.062 | 7mm | 0.091 | 0.298 | 35mm | 2.390 | 7.553 |
5/32" | 0.029 | 0.095 | 5/16" | 0.118 | 0.387 | 36mm | 2.438 | 7.999 |
4mm | 0.030 | 0.098 | 8mm | 0.120 | 0.398 | 38mm | 2.792 | 8.903 |
3/16" | 0.043 | 0.141 | 9mm | 0.152 | 0.498 | 3" | 10.900 | 35.762 |
5mm | 0.047 | 0.154 | 3/8" | 0.170 | 0.557 | 3-1/4" | 12.800 | 41.996 |
7/32" | 0.058 | 0.190 | 10mm | 0.189 | 0.620 | 3-1/2" | 14.850 | 48.772 |
6mm | 0.068 | 0.223 | 11mm | 0.228 | 0.748 | 3-3/4" | 17.001 | 55.780 |
20mm | 0.753 | 2.470 | 26mm | 1.271 | 4.170 | 4" | 19.306 | 63.340 |
22mm | 0.908 | 2.979 | 27mm | 1.368 | 4.490 | 4-1/4" | 21.908 | 72.249 |
7/8" | 0.926 | 3.038 | 1-1/8" | 1.534 | 5.033 | 4-1/2" | 24.448 | 80.340 |
24mm | 1.080 | 3.543 | 30mm | 1.691 | 5.548 | 4-3/4" | 27.366 | 90.249 |
25mm | 1.180 | 3.871 | 32mm | 1.894 | 6.314 | 5" | 30.461 | 99.940 |
1" | 1.210 | 3.970 | 1-1/4" | 1.924 | 6.349 | 5-1/2" | 36.690 | 121.000 |
6" | 43.860 | 143.900 | 7" | 59.432 | 196.000 | 8" | 77.586 | 254.553 |
6-1/2" | 51.093 | 167.630 | 7-1/2" | 68.226 | 225.000 | 10" | 121.048 | 397.140 |
Size Chart of UNS N10276 Round Bar
ID (mm) | OD (mm) | Chucked True to ID: Min. ID (mm) | Chucked True to ID: Min. ID (in.) | Chucked True to ID: Max. OD (in.) | Chucked True to ID: Max. OD (mm) | Chucked True to OD: Min. ID (in.) | Chucked True to OD: Min. ID (mm) | Chucked True to OD: Max. OD (mm) | Chucked True to OD: Max. OD (in.) |
|---|---|---|---|---|---|---|---|---|---|
20 | 32 | 21.1 | 0.831" | 1.185" | 30.1" | 0.862" | 21.93 | 31.0 | 1.220" |
16 | 32 | 17.0 | 0.669" | 1.181" | 30.0" | 0.709" | 18.00 | 31.0 | 1.220" |
28 | 40 | 29.0 | 1.142" | 1.500" | 38.1" | 1.177" | 29.90 | 39.0 | 1.535" |
25 | 40 | 26.0 | 1.024" | 1.496" | 38.0" | 1.063" | 27.00 | 39.0 | 1.535" |
32 | 45 | 33.0 | 1.299" | 1.697" | 43.1" | 1.335" | 33.94 | 44.0 | 1.732" |
36 | 50 | 37.0 | 1.457" | 1.890" | 48.0" | 1.496" | 38.00 | 49.0 | 1.929" |
40 | 56 | 41.0 | 1.614" | 2.126" | 54.0" | 1.654" | 42.00 | 55.0 | 2.165" |
50 | 63 | 51.0 | 2.008" | 2.406" | 61.15 | 2.043" | 51.96 | 62.0 | 2.441" |
32 | 63 | 33.0 | 1.299" | 2.386" | 60.63 | 1.354" | 34.46 | 62.0 | 2.441" |
56 | 71 | 57.0 | 2.244" | 2.713" | 68.95 | 2.283" | 58.00 | 69.9 | 2.752" |
50 | 75 | 51.0 | 2.008" | 2.858" | 72.65 | 2.055" | 52.20 | 73.8 | 2.906" |
63 | 80 | 64.0 | 2.520" | 3.063" | 77.86 | 2.559" | 65.00 | 78.8 | 3.102" |
67 | 85 | 68.0 | 2.677" | 3.252" | 82.66 | 2.720" | 69.18 | 83.7 | 3.295" |
71 | 90 | 72.1 | 2.839" | 3.449" | 87.67 | 2.878" | 73.10 | 88.6 | 3.488" |
63 | 90 | 64.0 | 2.520" | 3.437" | 87.36 | 2.571" | 65.30 | 88.6 | 3.488" |
75 | 95 | 76.2 | 2.997" | 3.641" | 92.47 | 3.041" | 77.30 | 93.5 | 3.681" |
67 | 95 | 68.0 | 2.677" | 3.630" | 92.26 | 2.728" | 69.30 | 93.5 | 3.681" |
50 | 95 | 51.0 | 2.008" | 3.614" | 91.85 | 2.075" | 52.70 | 93.5 | 3.681" |
80 | 100 | 81.2 | 3.197" | 3.835" | 97.48 | 3.240" | 82.30 | 98.5 | 3.878" |
80 | 106 | 81.2 | 3.197" | 4.059" | 103.18 | 3.248" | 82.50 | 104.4 | 4.110" |
90 | 112 | 91.4 | 3.598" | 4.299" | 109.29 | 3.642" | 92.50 | 110.3 | 4.343" |
90 | 118 | 91.4 | 3.598" | 4.524" | 114.99 | 3.650" | 92.70 | 116.2 | 4.575" |
100 | 125 | 101.5 | 3.996" | 4.799" | 121.91 | 4.043" | 102.70 | 123.1 | 4.846" |
106 | 132 | 107.6 | 4.236" | 5.071" | 128.80 | 4.283" | 108.80 | 130.0 | 5.118" |
112 | 140 | 113.7 | 4.476" | 5.378" | 136.60 | 4.528" | 115.00 | 137.9 | 5.429" |
125 | 150 | 126.9 | 4.996" | 5.768" | 146.50 | 5.043" | 128.10 | 147.7 | 5.815" |
112 | 160 | 113.7 | 4.476" | 6.134" | 155.80 | 4.547" | 115.50 | 157.6 | 6.205" |
100 | 170 | 101.5 | 3.996" | 6.496" | 165.00 | 4.091" | 103.90 | 167.4 | 6.591" |
100 | 180 | 101.5 | 3.996" | 6.878" | 174.70 | 4.098" | 104.10 | 177.3 | 6.980" |
160 | 190 | 162.4 | 6.394" | 7.311" | 185.70 | 6.449" | 163.80 | 187.1 | 7.366" |
132 | 190 | 134.0 | 5.276" | 7.287" | 185.10 | 5.354" | 136.00 | 187.1 | 7.366" |
170 | 200 | 172.6 | 6.795" | 7.701" | 195.60 | 6.846" | 173.90 | 197.0 | 7.756" |
UNS N10276 Round Bar Product Images
ASME SB 574 N10276 Bright Bar
ASME SB 574 UNS N10276 Cold-Worked Wire
ASTM B574 UNS N10276 Flat Bar
B574 N10276 Rectangular Bar
B574 UNS N10276 Square Bar
ASTM B574 N10276 Hex Bar
Applications and Industrial Uses of UNS N10276 Round Bar
- Chemical Processing Equipment
- Flue Gas Desulfurization Systems
- Pollution Control Equipment
- Wastewater Treatment Systems
- Acid Processing Equipment
- Pulp and Paper Processing Equipment
- Pharmaceutical Processing Equipment
- Oil and Gas Processing Equipment
Frequently Asked Questions:
What is UNS N10276 Round Bar?
UNS N10276 Round Bar is a nickel-chromium-molybdenum-tungsten alloy bar, commonly known as Hastelloy C276, designed for severe corrosive environments.
What is the ASTM standard for UNS N10276 Round Bar?
UNS N10276 Round Bar is manufactured according to ASTM B574 / ASME SB574.
Is UNS N10276 Round Bar corrosion resistant?
Yes, it provides excellent resistance to pitting, crevice corrosion, and many aggressive chemical environments.
What is the difference between Hastelloy C276 and Hastelloy C22?
C276 contains tungsten and provides excellent resistance to reducing and oxidizing environments, while C22 has higher chromium and is particularly strong against oxidizing acids and localized corrosion.
Can UNS N10276 Round Bar withstand strong acids?
Yes, it offers excellent resistance to many strong acids, including hydrochloric and sulfuric acid under suitable service conditions.
Can UNS N10276 Round Bar be hardened by heat treatment?
No, UNS N10276 is a solid-solution strengthened alloy and is not precipitation hardenable.
Is UNS N10276 suitable for welding?
Yes, its low carbon content provides good weldability and helps reduce harmful carbide precipitation in welded areas.
Can UNS N10276 Round Bar be used in sour service?
Yes, it can be considered for selected sour-service applications, subject to the applicable NACE requirements and service conditions.
