Nickel Alloy ERNiCrMo-10-AW (As-welded deposit)
Heat-treated state · default condition
UNS N06022 · also Hastelloy C22 Filler Wire, Filler Metal C-22
Standard delivery condition of the joint: use as-welded for virtually all C-22/C-276/6Mo/dissimilar corrosion service.
Values for the AW condition
Other ERNiCrMo-10 tempers and conditions
ERNiCrMo-10 is listed in 2 conditions; see the grade overview at ERNiCrMo-10.
- AW+SA
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As Welded + Solution Annealed | Pick when heavy sections, high heat input or forming after welding demand full homogenisation of Mo/W segregation and maximum corrosion performance. | 420 | 730 | 52 | 180 HB | 1.5 % IACS |
AWDefaultThis page As-welded deposit | Standard delivery condition of the joint: use as-welded for virtually all C-22/C-276/6Mo/dissimilar corrosion service. | 500 | 760 | 42 | 92 HRB | — |
What is ERNiCrMo-10-AW?
ERNiCrMo-10-AW is ERNiCrMo-10 heat treated to AW — standard delivery condition of the joint: use as-welded for virtually all C-22/C-276/6Mo/dissimilar corrosion service. ERNiCrMo-10-AW has a yield strength of 500 MPa (72.5 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 73% of nickel alloy grades. Elongation at break is 42% and the elastic modulus is 206 GPa (29.9 Msi). ERNiCrMo-10-AW has a density of 8.69 g/cm³ (0.314 lb/in³), heavier than 72% of nickel alloy grades. It melts at 1,357°C (2,475 °F).
Advantages
- Readily welded — 90/100, better than 96% of nickel alloy grades
- Good corrosion resistance — 92/100, better than 91% of nickel alloy grades
- High service temperature — 1,000°C (1,832 °F), better than 79% of nickel alloy grades
ERNiCrMo-10-AW properties
Typical room-temperature values for ERNiCrMo-10-AW; 11 are specific to this condition. Other listed values are ERNiCrMo-10 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ERNiCrMo-10-AW has a density of 8.69 g/cm³ (0.314 lb/in³), heavier than 72% of nickel alloy grades. It melts at 1,357°C (2,475 °F).
Mechanical14
ERNiCrMo-10-AW has a yield strength of 500 MPa (72.5 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 73% of nickel alloy grades. Elongation at break is 42% and the elastic modulus is 206 GPa (29.9 Msi).
Thermal6
ERNiCrMo-10-AW is rated for continuous service to 1,000°C (1,832 °F). It conducts heat at 10.1 W/m·K (5.84 BTU/hr·ft·°F), worse than 84% of nickel alloy grades. Thermal expansion is 12.4 µm/m·K (6.89 µin/in·°F).
Electrical3
ERNiCrMo-10-AW conducts electricity at 1.5 % IACS, better than 59% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrMo-10-AW takes about 190 MJ of energy and emits 13.5 kg of CO₂ — more than 75% of nickel alloy grades. Typical recycled content is 30%.
Manufacturability7
ERNiCrMo-10-AW's machinability is poor (18/100, worse than 61% of nickel alloy grades); weldability excellent (90/100); formability good (60/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ERNiCrMo-10-AW
Is ERNiCrMo-10 easy to machine?
Weld deposit machines like solution-annealed C-22: low speed, heavy positive rake carbide, rigid setup and flood coolant; it work-hardens instantly if the tool rubs.
Can ERNiCrMo-10 be welded?
GTAW/GMAW/PAW with 100 % Ar (or Ar+He for GTAW, Ar+He+small CO₂-free mix for pulsed GMAW); stringer beads, low heat input (<1.5 kJ/mm), interpass <150 °C, no preheat, no PWHT required.
Can ERNiCrMo-10 be formed, bent or molded?
Supplied only as drawn wire/rod; annealed rods bend freely for feeding, cold-drawn spool wire is stiffer — keep drive-roll pressure low to avoid shaving.
What surface finishes work on ERNiCrMo-10?
Do not anodize; grind/pickle (HNO₃-HF) or electropolish the weld and remove all heat tint to restore full pitting and crevice resistance.
ERNiCrMo-10 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 |
|---|---|---|
| Cr | 20 – 22.5 | 21.5 |
| Mo | 12.5 – 14.5 | 13.5 |
| W | 2.5 – 3.5 | 3 |
| Fe | 2 – 6 | 4 |
| Co | ≤ 2.5 | — |
| V | ≤ 0.35 | — |
| Mn | ≤ 0.5 | — |
| Si | ≤ 0.08 | — |
| C | ≤ 0.02 | — |
| P | ≤ 0.02 | — |
| S | ≤ 0.02 | — |
| Cu | ≤ 0.5 | — |
| Other, total | ≤ 0.5 | — |
| Niremainder, nominally ~56 % | balance | — |
ERNiCrMo-10-AW — frequently asked
What is ERNiCrMo-10-AW used for?
ERNiCrMo-10-AW is typically used for chemical process piping, flue gas desulfurization equipment, pollution control scrubbers and pharmaceutical reactor vessels. In short: matches Hastelloy C-22; oxidizing and reducing acids; service to 1000 °C.
What is the yield strength of ERNiCrMo-10-AW?
ERNiCrMo-10-AW has a typical yield strength of 500 MPa (72.5 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 73% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ERNiCrMo-10-AW easy to machine?
Not especially — machinability is rated poor (18/100, worse than 61% of nickel alloy grades). Weld deposit machines like solution-annealed C-22: low speed, heavy positive rake carbide, rigid setup and flood coolant; it work-hardens instantly if the tool rubs.
Can ERNiCrMo-10-AW be welded?
Yes — weldability is rated excellent (90/100). GTAW/GMAW/PAW with 100 % Ar (or Ar+He for GTAW, Ar+He+small CO₂-free mix for pulsed GMAW); stringer beads, low heat input (<1.5 kJ/mm), interpass <150 °C, no preheat, no PWHT required.
What surface finishes work on ERNiCrMo-10-AW?
Do not anodize; grind/pickle (HNO₃-HF) or electropolish the weld and remove all heat tint to restore full pitting and crevice resistance.
Can ERNiCrMo-10-AW be formed, bent or molded?
Supplied only as drawn wire/rod; annealed rods bend freely for feeding, cold-drawn spool wire is stiffer — keep drive-roll pressure low to avoid shaving.
What is the maximum service temperature of ERNiCrMo-10-AW?
ERNiCrMo-10-AW is rated for continuous use to about 1,000°C (1,832 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- AWS A5.14/A5.14M — Nickel and Nickel-Alloy Bare Welding Electrodes and Rods — AWS (2018)
- ASTM B574 / UNS N06022 chemical requirements — ASTM (2021)
- HASTELLOY C-22 alloy principal features and data — Haynes International (2020)
- Nickel filler metal ERNiCrMo-10 product data — Special Metals Welding Products (2019)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering (Ni-alloy filler metals) — ASM International (1993)
- C22/ERNiCrMo-10 — SMM / 1688 (2026)
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.