Nickel Alloy N06975-AW (As-welded deposit)
Heat-treated state
UNS N06975
Property set for weld metal and HAZ without post-weld solution anneal — titanium stabilization keeps the HAZ resistant in most acid service.
Values for the AW condition
Other N06975 tempers and conditions
N06975 is listed in 5 conditions; see the grade overview at N06975.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot finished and annealed | Heavy bar, billet and forged shapes supplied hot worked then solution annealed; slightly coarser grain and lower strength than cold-finished stock. | 290 | 665 | 48 | 180 HB | 1.5 % IACS |
ANNDefault Annealed | Standard mill condition for plate, sheet, tube and bar — maximum corrosion resistance and ductility. | 310 | 690 | 50 | 185 HB | — |
Cold drawn and annealed | Cold-finished then re-annealed for tight tolerance and bright surface with full corrosion resistance. | 320 | 700 | 48 | 190 HB | 1.5 % IACS |
AWThis page As-welded deposit | Property set for weld metal and HAZ without post-weld solution anneal — titanium stabilization keeps the HAZ resistant in most acid service. | 330 | 660 | 35 | 13 HRC | 1.5 % IACS |
Cold worked | Choose when higher strength and hardness are needed (fasteners, shafts, springs) and slight loss of ductility/corrosion margin is acceptable. | 700 | 900 | 20 | 25 HRC | 1.5 % IACS |
What is N06975-AW?
N06975-AW is N06975 heat treated to AW — property set for weld metal and HAZ without post-weld solution anneal — titanium stabilization keeps the HAZ resistant in most acid service. N06975-AW has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 660 MPa (95.7 ksi) — weaker than 67% of nickel alloy grades. Elongation at break is 35% and the elastic modulus is 196 GPa (28.4 Msi). N06975-AW has a density of 8.14 g/cm³ (0.294 lb/in³), lighter than 74% of nickel alloy grades. It melts at 1,330°C (2,426 °F). ANN is the default condition FabDigit quotes; AW is available on request or by drawing note.
Limitations
- Limited service temperature — 540°C (1,004 °F), worse than 75% of nickel alloy grades
N06975-AW properties
Typical room-temperature values for N06975-AW; 23 are specific to this condition. Other listed values are N06975 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
N06975-AW has a density of 8.14 g/cm³ (0.294 lb/in³), lighter than 74% of nickel alloy grades. It melts at 1,330°C (2,426 °F).
Mechanical14
N06975-AW has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 660 MPa (95.7 ksi) — weaker than 67% of nickel alloy grades. Elongation at break is 35% and the elastic modulus is 196 GPa (28.4 Msi).
Thermal5
N06975-AW is rated for continuous service to 540°C (1,004 °F). It conducts heat at 10.5 W/m·K (6.07 BTU/hr·ft·°F), worse than 73% of nickel alloy grades. Thermal expansion is 13.4 µm/m·K (7.44 µin/in·°F).
Electrical3
N06975-AW conducts electricity at 1.5 % IACS, better than 59% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (83/100), better than 69% of nickel alloy grades.
Sustainability4
Producing a kilogram of N06975-AW takes about 150 MJ of energy and emits 12 kg of CO₂ — less than 68% of nickel alloy grades. Typical recycled content is 35%.
Manufacturability8
N06975-AW's machinability is poor (17/100, worse than 69% of nickel alloy grades); weldability very good (78/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with N06975-AW
Is N06975 easy to machine?
Treat as a gummy, rapidly work-hardening nickel alloy: rigid setups, positive-rake carbide or ceramic tooling, low speed / heavy positive feed, continuous cut and flood coolant to avoid glazing.
Can N06975 be welded?
Readily GTAW/GMAW/SMAW welded with matching or ERNiCrMo filler; keep interpass temperature low, heat input modest and surfaces clean — Ti stabilization usually allows use as-welded without PWHT.
Can N06975 be formed, bent or molded?
Cold forms well when annealed but hardens fast — allow extra power, generous bend radii and interstage anneals at ~1120 °C with rapid quench; hot work in the ~1150–1200 °C range.
What surface finishes work on N06975?
Pickle (HNO₃-HF) or blast-and-passivate after hot work/welding to restore the chromium oxide film; can be ground, mechanically polished or electropolished — anodizing is not applicable.
N06975 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Ni | 47 – 52 | 49.5 |
| Cr | 23 – 26 | 24.5 |
| Mo | 5 – 7 | 6 |
| Cuaids resistance to reducing acids | 0.7 – 1.2 | 0.9 |
| Ticarbide stabilizer, protects HAZ | 0.7 – 1.5 | 1 |
| C | ≤ 0.03 | 0.02 |
| Mn | ≤ 1 | 0.5 |
| Si | ≤ 1 | 0.5 |
| P | ≤ 0.04 | — |
| S | ≤ 0.03 | — |
| Febalance, typically 15–20 % | balance | — |
N06975-AW — frequently asked
What is N06975-AW used for?
N06975-AW is typically used for chemical processing equipment, acid handling components, corrosion-resistant piping and process vessel linings. In short: mixed acid service; ti-stabilized, weld as-welded; limited stock availability.
What is the yield strength of N06975-AW?
N06975-AW has a typical yield strength of 330 MPa (47.9 ksi) and a tensile strength of 660 MPa (95.7 ksi) — weaker than 67% of nickel alloy grades. Strength varies by condition: see the 5 listed tempers.
Is N06975-AW easy to machine?
Not especially — machinability is rated poor (17/100, worse than 69% of nickel alloy grades). Treat as a gummy, rapidly work-hardening nickel alloy: rigid setups, positive-rake carbide or ceramic tooling, low speed / heavy positive feed, continuous cut and flood coolant to avoid glazing.
Can N06975-AW be welded?
Yes — weldability is rated very good (78/100). Readily GTAW/GMAW/SMAW welded with matching or ERNiCrMo filler; keep interpass temperature low, heat input modest and surfaces clean — Ti stabilization usually allows use as-welded without PWHT.
What surface finishes work on N06975-AW?
Pickle (HNO₃-HF) or blast-and-passivate after hot work/welding to restore the chromium oxide film; can be ground, mechanically polished or electropolished — anodizing is not applicable.
Can N06975-AW be formed, bent or molded?
Cold forms well when annealed but hardens fast — allow extra power, generous bend radii and interstage anneals at ~1120 °C with rapid quench; hot work in the ~1150–1200 °C range.
What is the maximum service temperature of N06975-AW?
N06975-AW is rated for continuous use to about 540°C (1,004 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between N06975-ANN and N06975-CW?
ANN is the default condition — standard mill condition for plate, sheet, tube and bar — maximum corrosion resistance and ductility. CW: choose when higher strength and hardness are needed (fasteners, shafts, springs) and slight loss of ductility/corrosion margin is acceptable. Yield strength is 310 MPa in ANN versus 700 MPa in CW.
Sources
- ASTM B582 — Nickel-Chromium-Iron-Molybdenum-Copper Alloy Plate, Sheet and Strip — ASTM International (2019)
- ASTM B581 — Nickel-Chromium-Iron-Molybdenum-Copper Alloy Rod and Bar — ASTM International (2019)
- ASTM B619 / B622 / B626 — Welded and Seamless Ni-alloy Pipe and Tube — ASTM International (2019)
- Hastelloy alloy G-2 (UNS N06975) technical data — Haynes International (2020)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.