Nickel Alloy ERNiCrMo-4 AW+SA
Heat-treated state
UNS N10276 · ASTM A5.14 ERNiCrMo-4 · also Hastelloy C276 Filler Wire, Filler Metal C-276
AW+SA = weld metal solution annealed ~1120 °C and rapid cooled
Pick when the fabrication is solution annealed after welding to dissolve interdendritic segregation and restore full corrosion resistance/ductility.
Values for the AW+SA condition
Other ERNiCrMo-4 tempers and conditions
ERNiCrMo-4 is listed in 2 conditions; see the grade overview at ERNiCrMo-4.
- AW+SA
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AW+SAThis page Weld metal solution annealed ~1120 °C and rapid cooled | Pick when the fabrication is solution annealed after welding to dissolve interdendritic segregation and restore full corrosion resistance/ductility. | 400 | 730 | 50 | 9 HRC | 1.3 % IACS |
AWDefault As-welded deposit | Default condition for design: undiluted C-276 weld metal in the as-deposited state, no PWHT. | 500 | 760 | 40 | 13 HRC | 1.3 % IACS |
What is ERNiCrMo-4 AW+SA?
ERNiCrMo-4 AW+SA is ERNiCrMo-4 heat treated to AW+SA — pick when the fabrication is solution annealed after welding to dissolve interdendritic segregation and restore full corrosion resistance/ductility. ERNiCrMo-4 AW+SA has a yield strength of 400 MPa (58 ksi) and a tensile strength of 730 MPa (106 ksi) — stronger than 56% of nickel alloy grades. Elongation at break is 50% and the elastic modulus is 205 GPa (29.7 Msi). ERNiCrMo-4 AW+SA has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,325°C (2,417 °F). AW is the default condition FabDigit quotes; AW+SA is available on request or by drawing note.
Advantages
- Good corrosion resistance — 95/100, better than 97% of nickel alloy grades
- Readily welded — 90/100, better than 96% of nickel alloy grades
- Tough — resists crack growth — 170 MPa·√m (154.7 ksi·√in), better than 94% of nickel alloy grades
- Ductile — tolerates forming and impact — 50%, better than 88% of nickel alloy grades
ERNiCrMo-4 AW+SA properties
Typical room-temperature values for ERNiCrMo-4 AW+SA; 23 are specific to this condition. Other listed values are ERNiCrMo-4 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
ERNiCrMo-4 AW+SA has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,325°C (2,417 °F).
Mechanical16
ERNiCrMo-4 AW+SA has a yield strength of 400 MPa (58 ksi) and a tensile strength of 730 MPa (106 ksi) — stronger than 56% of nickel alloy grades. Elongation at break is 50% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal5
ERNiCrMo-4 AW+SA is rated for continuous service to 650°C (1,202 °F). It conducts heat at 10.2 W/m·K (5.89 BTU/hr·ft·°F), worse than 79% of nickel alloy grades. Thermal expansion is 11.2 µm/m·K (6.22 µin/in·°F).
Electrical3
ERNiCrMo-4 AW+SA conducts electricity at 1.3 % IACS, worse than 89% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (95/100), better than 97% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrMo-4 AW+SA takes about 155 MJ of energy and emits 13 kg of CO₂ — less than 58% of nickel alloy grades. Typical recycled content is 45%.
Manufacturability7
ERNiCrMo-4 AW+SA's machinability is poor (22/100, better than 64% of nickel alloy grades); weldability excellent (90/100); formability very good (70/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ERNiCrMo-4 AW+SA
Is ERNiCrMo-4 easy to machine?
Weld deposits machine like C-276: rigid setup, sharp positive-rake carbide, low speed (20–30 m/min), heavy feed and flood coolant to avoid work hardening and glazing.
Can ERNiCrMo-4 be welded?
GTAW/GMAW/PAW with 100 % Ar (or Ar+He) shielding, stringer beads, low heat input and interpass ≤120 °C; no preheat, no PWHT needed — avoid long dwell in 650–1000 °C to prevent μ/P-phase precipitation.
Can ERNiCrMo-4 be formed, bent or molded?
Supplied as cold-drawn wire; the alloy work-hardens strongly, so intermediate solution anneals are required in wire drawing and any weld-metal cold forming needs generous bend radii.
What surface finishes work on ERNiCrMo-4?
Grind/brush out weld oxide, then pickle (HNO₃–HF) or electropolish; leaving heat tint markedly reduces local crevice/pitting resistance. Not anodizable.
ERNiCrMo-4 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 | 14.5 – 16.5 | 15.5 |
| Mo | 15 – 17 | 16 |
| W | 3 – 4.5 | 3.8 |
| Fe | 4 – 7 | 5.5 |
| Co | ≤ 2.5 | 1 |
| Mn | ≤ 1 | 0.5 |
| V | ≤ 0.35 | 0.15 |
| C | ≤ 0.02 | 0.01 |
| Si | ≤ 0.08 | 0.04 |
| Cu | ≤ 0.5 | 0.1 |
| P | ≤ 0.04 | 0.01 |
| S | ≤ 0.03 | 0.01 |
| other, totalAWS A5.14 residual limit | ≤ 0.5 | — |
| Niremainder, typically ~57 % | balance | — |
ERNiCrMo-4 AW+SA — frequently asked
What is ERNiCrMo-4 AW+SA used for?
ERNiCrMo-4 AW+SA is typically used for FGD scrubber systems, chemical processing reactors, sour gas service piping and pulp and paper bleaching equipment. In short: matches Hastelloy C-276; top pitting and SCC resistance; corrosion score 93.
What is the yield strength of ERNiCrMo-4 AW+SA?
ERNiCrMo-4 AW+SA has a typical yield strength of 400 MPa (58 ksi) and a tensile strength of 730 MPa (106 ksi) — stronger than 56% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ERNiCrMo-4 AW+SA easy to machine?
Not especially — machinability is rated poor (22/100, better than 64% of nickel alloy grades). Weld deposits machine like C-276: rigid setup, sharp positive-rake carbide, low speed (20–30 m/min), heavy feed and flood coolant to avoid work hardening and glazing.
Can ERNiCrMo-4 AW+SA be welded?
Yes — weldability is rated excellent (90/100). GTAW/GMAW/PAW with 100 % Ar (or Ar+He) shielding, stringer beads, low heat input and interpass ≤120 °C; no preheat, no PWHT needed — avoid long dwell in 650–1000 °C to prevent μ/P-phase precipitation.
What surface finishes work on ERNiCrMo-4 AW+SA?
Grind/brush out weld oxide, then pickle (HNO₃–HF) or electropolish; leaving heat tint markedly reduces local crevice/pitting resistance. Not anodizable.
Can ERNiCrMo-4 AW+SA be formed, bent or molded?
Supplied as cold-drawn wire; the alloy work-hardens strongly, so intermediate solution anneals are required in wire drawing and any weld-metal cold forming needs generous bend radii.
What is the maximum service temperature of ERNiCrMo-4 AW+SA?
ERNiCrMo-4 AW+SA is rated for continuous use to about 650°C (1,202 °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 N10276 chemistry — ASTM (2018)
- HASTELLOY C-276 alloy technical data — Haynes International (2020)
- Filler metal ERNiCrMo-4 all-weld-metal properties — Special Metals Welding Products / Böhler Welding (2021)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering (Ni-alloy filler metals) — ASM International (1993)
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.