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Chemical Composition
| Element | Composition, % | ||||
|---|---|---|---|---|---|
| UNS N08026 | UNS N08020 | UNS N08024 | UNS N08367 | UNS R20033 | |
| Carbon, max | 0.03 | 0.07 | 0.03 | 0.030 | 0.015 |
| Manganese, max | 1.00 | 2.00 | 1.00 | 2.00 | 2.0 |
| Phosphorus, max | 0.03 | 0.045 | 0.035 | 0.040 | 0.02 |
| Sulfur,max | 0.03 | 0.035 | 0.035 | 0.030 | 0.01 |
| Silicon, max | 0.50 | 1.00 | 0.50 | 1.00 | 0.50 |
| Nickel | 33.00–37.20 | 32.00–38.00 | 35.00–40.00 | 23.50 to 25.50 | 30.0–33.0 |
| Chromium | 22.00–26.00 | 19.00–21.00 | 22.50–25.00 | 20.00 to 22.00 | 31.0–35.0 |
| Molybdenum | 5.00-6.70 | 2.00-3.00 | 3.50-5.00 | 6.00 to 7.00 | 0.50-2.0 |
| Copper | 2.00-4.00 | 3.00-4.00 | 0.50-1.50 | 0.75 max | 0.31-1.20 |
| Columbium (Nb) + tantalum | ... | 8 x carbon-1.00 | 0.15-0.35 | ... | ... |
| Nitrogen | 0.1.16 | ... | ... | 0.18 to 0.25 | 0.35-0.60 |
| Iron | RemainderA | RemainderA | RemainderA | RemainderA | RemainderA |
| Element | Composition, % | |||||
|---|---|---|---|---|---|---|
| UNS N06030 | UNS N06022 | UNS N06200 | UNS N10276 | UNS N10665 | UNS N10675 | |
| Carbon, max | 0.03 | 0.015 | 0.010 | 0.010 | 0.02 | 0.01 |
| Manganese,max | 1.5 | 0.50 | 0.50 | 1.0 | 1.0 | 3.0 |
| Phosphorous,max | 0.04 | 0.02 | 0.025 | 0.04 | 0.04 | 0.030 |
| Sulfur, max | 0.02 | 0.02 | 0.010 | 0.03 | 0.03 | 0.010 |
| Silicon,max | 0.8 | 0.08 | 0.08 | 0.08 | 0.10 | 0.10 |
| Nickel | RemainderA | RemainderA | RemainderA | RemainderA | RemainderA | RemainderA |
| Chromium | 28.0-31.5 | 20.0-22.5 | 22.0-24.0 | 14.5-16.5 | 1.0 max | 1.0-3.0 |
| Molybdenum | 4.0-6.0 | 12.5-14.5 | 15.0-17.0 | 15.0-17.0 | 26.0-30.0 | 27.0-32.0 |
| Copper | 1.0-2.4 | ... | 1.3-1.9 | ... | ... | 0.20 |
| Columbium (Nb) + tantalum | 0.30-1.50 | ... | ... | ... | ... | ... |
| Nitrogen | ... | ... | ... | ... | ... | ... |
| Iron | 13.0-17.0 | 2.0-6.0 | 3.0 max | 4.0-7.0 | 2.0 max | 1.0-3.0 |
| Cobalt,max | 5.0 | 2.5 | 2.0 | 2.5 | 1.0 | 3.0 |
| Tungsten | 1.5-4.0 | 2.5-3.5 | ... | 3.0-4.5 | ... | 3.0 max |
| Vanadium, max | ... | 0.35 | ... | 0.35 | ... | 0.20 |
| Titanium, max | ... | ... | ... | ... | ... | 0.2 |
| Zirconium,max | ... | ... | ... | ... | ... | 0.10 |
| Columbium (Nb) | ... | ... | ... | ... | ... | 0.20 max |
| Tantalum | ... | ... | ... | ... | ... | 0.20 max |
| Nickel+ | ... | ... | ... | ... | ... | 94.0-98.0 |
| Molybdenum | ... | ... | ... | ... | ... | ... |
| Aluminum, max | ... | ... | 0.50 | ... | ... | 0.50 |
| Element | Composition, % | ||||||
|---|---|---|---|---|---|---|---|
| UNS N06059 | UNS N06686 | UNS N08031 | UNS N06045 | UNS N06025 | UNS N10629 | UNS N06035 | |
| Carbon, max | 0.010 | 0.010 | 0.015 | 0.05-0.12 | 0.15-0.25 | 0.01 | 0.050 |
| Manganese,max | 0.5 | 0.75 | 2.0 | 1.0 | 0.15 | 1.5 | 0.50 |
| Phosphorous,max | 0.015 | 0.04 | 0.020 | 0.02 | 0.02 | 0.040 | 0.030 |
| Sulfur, max | 0.010 | 0.02 | 0.010 | 0.010 | 0.010 | 0.010 | 0.015 |
| Silicon, max | 0.10 | 0.06 | 0.3 | 2.5-3.0 | 0.5 | 0.05 | 0.60 |
| Nickel | RemainderA | RemainderA | 30.0-32.0 | 45.0 min | RemainderA | RemainderA | RemainderA |
| Chromium | 22.0-24.0 | 19.0-23.0 | 26.0-28.0 | 26.0-29.0 | 24.0-26.0 | 0.5-1.5 | 32.25-34.25 |
| Molybdenum | 15.0-16.5 | 15.0-17.0 | 6.0-7.0 | ... | ... | 26.0-30.0 | 7.60-9.00 |
| Copper | 0.50 max | ... | 1.0-1.4 | 0.3 max | 0.1 max | 0.5 | 0.30 max |
| Yttrium | ... | ... | ... | ... | 0.05-0.12 | ... | ... |
| Nitrogen | ... | ... | 0.15-0.25 | ... | ... | ... | ... |
| Iron | 1.5 max | 5.0 max | RemainderA | 21.0-25.0 | 8.0-11.0 | 1.0-6.0 | 2.00 max |
| Cobalt, max | 0.3 | ... | ... | ... | ... | 2.5 | 1.00 |
| Tungsten | ... | 3.0-4.4 | ... | ... | ... | ... | 0.60 max |
| Vanadium, max | ... | ... | ... | ... | ... | ... | 0.20 |
| Titanium, max | ... | 0.02-0.25 | ... | ... | 0.1-0.2 | ... | ... |
| Zirconium, max | ... | ... | ... | ... | 0.01-0.10 | ... | ... |
| Columbium (Nb) | ... | ... | ... | ... | ... | ... | ... |
| Tantalum | ... | ... | ... | ... | ... | ... | ... |
| Cerium | ... | ... | ... | 0.03-0.09 | ... | ... | ... |
| Aluminum, max | 0.1-0.4 | ... | ... | ... | 1.8-2.4 | 0.1-0.5 | 0.40 |
A. Shall be determined arithmetically by difference.
Mechanical Properties
| Alloy | Tensile Strength, min | Yield Strength, min | Elongation in 2 in. or 50 mm, min, % | Reduction of Area, min, % | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | |||
| UNS N08020, UNS N08024, and UNS N08026 | 80 | 551 | 35 | 241 | 30.0 | 50.0 |
| UNS N08367 | 95 | 655 | 45 | 310 | 30.0 | 50.0 |
| UNS R20033 | 109 | 750 | 55 | 380 | 40.0 | ... |
| UNS N06030 | 85 | 586 | 35 | 241 | 30 | ... |
| UNS N06022 | 100 | 690 | 45 | 310 | 45 | ... |
| UNS N06035 | 85 | 586 | 35 | 241 | 30 | ... |
| UNS N06200 | 100 | 690 | 45 | 310 | 45 | ... |
| UNS N10276 | 100 | 690 | 41 | 283 | 40 | ... |
| UNS N10665 | 110 | 760 | 51 | 350 | 40 | ... |
| UNS N10675 | 110 | 760 | 51 | 350 | 40 | ... |
| UNS N06059 | 100 | 690 | 45 | 310 | 45 | ... |
| UNS N06686 | 100 | 690 | 45 | 310 | 45 | ... |
| UNS N08031 | 94 | 650 | 40 | 276 | 40.0 | ... |
| UNS N06045 | 90 | 620 | 35 | 241 | 35 | ... |
| UNS N06025 | 98 | 680 | 39 | 270 | 30 | ... |
| UNS N10629 | 110 | 760 | 51 | 350 | 40 | ... |
Referenced Documents
| ASTM A 262 | Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels | |
| ASTM B 166 | Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045)* and Nickel-Chromium-CobaltMolybdenum Alloy (UNS N06617) Rod, Bar, and Wire | |
| ASTM B 335 | Specification for Nickel-Molybdenum Alloy Rod | |
| ASTM B 408 | Specification for Nickel-Iron-Chromium Alloy Rod and Bar | |
| ASTM B 472 | Specification for Nickel Alloy Billets and Bars for Reforging | |
| ASTM B 473 | Specification for UNS N08020, UNS N08024, and UNS N08026 Nickel Alloy Bar and Wire | |
| ASTM B 574 | Specification for Low-Carbon Nickel-ChromiumMolybdenum, Low-Carbon Nickel-MolybdenumChromium-Tantalum, Low-Carbon Nickel-ChromiumMolybdenum-Copper, and Low-Carbon NickelChromium-Molybdenum-Tungsten Alloy Rod | |
| ASTM B 581 | Specification for Nickel-Chromium-IronMolybdenum-Copper Alloy Rod. | |
| ASTM B 649 | Specification for Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, UNS N08354, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNS N08936) Wire | |
| ASTM B 691 | Specification for Iron-Nickel-ChromiumMolybdenum Alloys (UNS N08366 and UNS N08367)Rod, Bar, and Wire. | |
| ASTM B 880 | Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys | |
| ASTM E 8 | Test Methods for Tension Testing of Metallic Materials | |
| ASTM E 527 | Practice for Numbering Metals and Alloys (UNS) | |
| ASTM E 1473 | Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys. | |
| ASTM E 1916 | Guide for Identification and/or Segregation of Mixed Lots of Metals. | |
| ANSI B16.5 | Steel Pipe Flanges and Flanged Fittings (for applicable alloy UNS N08020)4 | |
| SP-25 | Standard Marking System for Valves, Fittings, Flanges, and Unions |