Nickel Alloy ENiCrMo-4
UNS W80276
ENiCrMo-4 is a Ni-Mo-Cr covered electrode matching Alloy C-276 chemistry (UNS W80276) for shielded metal arc welding and overlay of C-276 and similar wet-corrosion alloys.
Reference datasheet — ENiCrMo-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
ENiCrMo-4 tempers and conditions
ENiCrMo-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 |
|---|---|---|---|---|---|---|
Solution annealed weld metal | Choose when the fabricated component is solution annealed after welding to homogenize the deposit and restore maximum corrosion resistance in severe acid/chloride service. | 390 | 720 | 45 | 180 HB | 1.4 % IACS |
AWDefault As-welded deposit | Standard supplied/qualified condition: multipass SMAW deposit used as-welded, no post-weld heat treatment. | 505 | 745 | 35 | 14 HRC | 1.3 % IACS |
Supply forms, finishes and certifications
Ways ENiCrMo-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 |
|---|---|---|
OVERLAY | Corrosion-resistant weld overlay / cladding on steel | Coating |
What is ENiCrMo-4?
ENiCrMo-4 is a Ni-Mo-Cr covered electrode matching Alloy C-276 chemistry (UNS W80276) for shielded metal arc welding and overlay of C-276 and similar wet-corrosion alloys. As-welded deposits give about 505 MPa yield, 745 MPa tensile, 35% elongation and 200 HB (92 HRB), with service to 650 °C and a corrosion resistance rating of 92/100 in reducing and oxidising process streams. The deposit work-hardens and is dilution-sensitive on steel substrates. ENiCrMo-10 (C-22) is the nearest alternative where oxidising media dominate. ENiCrMo-4 has a density of 8.87 g/cm³ (0.32 lb/in³), heavier than 86% of nickel alloy grades. It melts at 1,323°C (2,413 °F). ENiCrMo-4 has a yield strength of 505 MPa (73.2 ksi) and a tensile strength of 745 MPa (108 ksi) — stronger than 75% of nickel alloy grades. Elongation at break is 35% and the elastic modulus is 205 GPa (29.7 Msi).
What is ENiCrMo-4 used for?
- chemical process vessel welding
- flue gas desulfurization systems
- pulp and paper bleach plant equipment
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 strength — 505 MPa (73.2 ksi), better than 75% of nickel alloy grades
- Tough — resists crack growth — 120 MPa·√m (109.2 ksi·√in), better than 75% of nickel alloy grades
Limitations
- Hard to polish — 60/100, worse than 84% of nickel alloy grades
ENiCrMo-4 properties
Typical room-temperature values for ENiCrMo-4-AW; bars are the position among nickel alloy grades.
Physical3
ENiCrMo-4 has a density of 8.87 g/cm³ (0.32 lb/in³), heavier than 86% of nickel alloy grades. It melts at 1,323°C (2,413 °F).
Mechanical16
ENiCrMo-4 has a yield strength of 505 MPa (73.2 ksi) and a tensile strength of 745 MPa (108 ksi) — stronger than 75% of nickel alloy grades. Elongation at break is 35% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal5
ENiCrMo-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
ENiCrMo-4 conducts electricity at 1.3 % IACS, worse than 83% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of nickel alloy grades.
Sustainability4
Producing a kilogram of ENiCrMo-4 takes about 215 MJ of energy and emits 14 kg of CO₂ — more than 84% of nickel alloy grades. Typical recycled content is 30%.
Manufacturability6
ENiCrMo-4's machinability is poor (17/100, worse than 69% of nickel alloy grades); weldability excellent (90/100); formability poor (30/100).
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. ENiCrMo-4 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ENiCrMo-4
Is ENiCrMo-4 easy to machine?
Weld deposits machine like C-276: low speeds, heavy positive-rake carbide tooling, rigid setups and flood coolant to fight work hardening and gumminess; grind rather than mill for weld-crown dressing.
Can ENiCrMo-4 be welded?
DCEP, stringer beads with minimal weave, low heat input, interpass temperature typically below 100–150 °C, no preheat needed; keep electrodes dry (re-bake per producer instructions) and remove slag fully between passes to avoid inclusions and hot cracking.
Can ENiCrMo-4 be formed, bent or molded?
Not a wrought product — deposit shape is set by welding technique; buildup on steel requires 2+ layers to control iron dilution, and cold straightening of clad plate should be limited to avoid cracking the overlay.
ENiCrMo-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 |
|---|---|---|
| Clow carbon to avoid carbide precipitation | ≤ 0.02 | 0.01 |
| 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 | |
| Mn | ≤ 1 | 0.5 |
| Si | ≤ 0.2 | 0.1 |
| V | ≤ 0.35 | |
| Cu | ≤ 0.5 | |
| P | ≤ 0.04 | |
| S | ≤ 0.03 | |
| Other elements, total | ≤ 0.5 | |
| Nibalance, ~55 % nominal (undiluted weld metal) | balance |
What surface finishes work on ENiCrMo-4?
Pickle/passivate or mechanically clean and remove all slag, oxide and heat tint before service; abrasive blast with iron-free media, then wire-brush with stainless tools to preserve full chloride pitting resistance.
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 ENiCrMo-4 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- W80276
- Also called
- Hastelloy C276 filler
How much does ENiCrMo-4 cost?
ENiCrMo-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.
ENiCrMo-4 — frequently asked
What is ENiCrMo-4 used for?
ENiCrMo-4 is typically used for chemical process vessel welding, flue gas desulfurization systems and pulp and paper bleach plant equipment. In short: benchmark C-276 electrode; handles reducing acids; chloride pitting resistant deposit.
What is the yield strength of ENiCrMo-4?
ENiCrMo-4 has a typical yield strength of 505 MPa (73.2 ksi) and a tensile strength of 745 MPa (108 ksi) — stronger than 75% of nickel alloy grades. Strength varies by condition: see the 2 listed tempers.
Is ENiCrMo-4 easy to machine?
Not especially — machinability is rated poor (17/100, worse than 69% of nickel alloy grades). Weld deposits machine like C-276: low speeds, heavy positive-rake carbide tooling, rigid setups and flood coolant to fight work hardening and gumminess; grind rather than mill for weld-crown dressing.
Can ENiCrMo-4 be welded?
Yes — weldability is rated excellent (90/100). DCEP, stringer beads with minimal weave, low heat input, interpass temperature typically below 100–150 °C, no preheat needed; keep electrodes dry (re-bake per producer instructions) and remove slag fully between passes to avoid inclusions and hot cracking.
What surface finishes work on ENiCrMo-4?
Pickle/passivate or mechanically clean and remove all slag, oxide and heat tint before service; abrasive blast with iron-free media, then wire-brush with stainless tools to preserve full chloride pitting resistance.
Can ENiCrMo-4 be formed, bent or molded?
Not a wrought product — deposit shape is set by welding technique; buildup on steel requires 2+ layers to control iron dilution, and cold straightening of clad plate should be limited to avoid cracking the overlay.
What is the maximum service temperature of ENiCrMo-4?
ENiCrMo-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.
What is the difference between ENiCrMo-4-AW and ENiCrMo-4-SA?
AW is the default condition — standard supplied/qualified condition: multipass SMAW deposit used as-welded, no post-weld heat treatment. SA: choose when the fabricated component is solution annealed after welding to homogenize the deposit and restore maximum corrosion resistance in severe acid/chloride service. Yield strength is 505 MPa in AW versus 390 MPa in SA.
How much does ENiCrMo-4 cost?
ENiCrMo-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 A5.11/A5.11M — Nickel and Nickel-Alloy Welding Electrodes for SMAW — American Welding Society (2022)
- ASME BPVC Section II Part C (SFA-5.11) — ASME (2023)
- HASTELLOY C-276 alloy technical data — Haynes International (2020)
- ASM Handbook Vol. 2 — Properties of Nonferrous Alloys (Ni-Cr-Mo alloys) — ASM International (1990)
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.