Nickel Alloy ERNiCrMo-4
UNS N10276 · ASTM A5.14 ERNiCrMo-4 · also Hastelloy C276 Filler Wire, Filler Metal C-276
ERNiCrMo-4 is a nickel-chromium-molybdenum filler metal (UNS N10276, AWS A5.14 ERNiCrMo-4) matching C-276 base metal, with high resistance to pitting, crevice corrosion and stress-corrosion cracking in aggressive chemical environments.
Reference datasheet — ERNiCrMo-4 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the AW condition
ERNiCrMo-4 tempers and conditions
ERNiCrMo-4 is supplied in 2 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
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 |
Supply forms, finishes and certifications
Ways ERNiCrMo-4 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
WIRE-CD | Bare filler wire as supplied | Supply form |
What is ERNiCrMo-4?
ERNiCrMo-4 is a nickel-chromium-molybdenum filler metal (UNS N10276, AWS A5.14 ERNiCrMo-4) matching C-276 base metal, with high resistance to pitting, crevice corrosion and stress-corrosion cracking in aggressive chemical environments. It is used to weld C-276 plate and pipe and to deposit corrosion-resistant overlay, supplied as cold-drawn spool wire; as-welded deposits give roughly 500 MPa yield, 760 MPa tensile, 40 % elongation and 92 HRB, with a corrosion score of 93. Service is limited to 650 °C because of μ/P-phase precipitation; for strongly oxidizing acids, ERNiCrMo-10 (C-22) is the nearest alternative. ERNiCrMo-4 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). ERNiCrMo-4 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 40% and the elastic modulus is 205 GPa (29.7 Msi).
What is ERNiCrMo-4 used for?
- FGD scrubber systems
- chemical processing reactors
- sour gas service piping
- pulp and paper bleaching equipment
Advantages
- Readily welded — 90/100, better than 96% of nickel alloy grades
- Good corrosion resistance — 93/100, better than 95% of nickel alloy grades
- Tough — resists crack growth — 130 MPa·√m (118.3 ksi·√in), better than 85% of nickel alloy grades
ERNiCrMo-4 properties
Typical room-temperature values for ERNiCrMo-4-AW; bars are the position among nickel alloy grades.
Physical3
ERNiCrMo-4 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 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 40% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal5
ERNiCrMo-4 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 conducts electricity at 1.3 % IACS, worse than 89% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (93/100), better than 95% of nickel alloy grades.
Sustainability4
Producing a kilogram of ERNiCrMo-4 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's machinability is poor (20/100, better than 53% of nickel alloy grades); weldability excellent (90/100); formability good (55/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the nickel alloy family
Yield strength against density for every nickel alloy grade FabDigit runs. ERNiCrMo-4 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ERNiCrMo-4
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.
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 |
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.
Surface treatments FabDigit runs on nickel alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Plating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Nickel Alloy ERNiCrMo-4 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- N10276
- ASTM
- A5.14 ERNiCrMo-4
- Trade names
- Hastelloy C276 Filler WireFiller Metal C-276
- Also called
- AWS A5.14 ERNiCrMo-4
How much does ERNiCrMo-4 cost?
ERNiCrMo-4 is a high-cost nickel alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
ERNiCrMo-4 — frequently asked
What is ERNiCrMo-4 used for?
ERNiCrMo-4 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?
ERNiCrMo-4 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-4 easy to machine?
Not especially — machinability is rated poor (20/100, better than 53% 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 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?
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 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?
ERNiCrMo-4 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.
How much does ERNiCrMo-4 cost?
ERNiCrMo-4 is a high-cost nickel alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
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; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.