Steel E80C-Ni3
UNS W23030
E80C-Ni3 (UNS W23030) is a nominal 3.25 % nickel composite metal-cored electrode, the highest-nickel member of the Ni-series low-alloy flux-cored fillers and the one with the best low-temperature toughness.
Reference datasheet — E80C-Ni3 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
E80C-Ni3 tempers and conditions
E80C-Ni3 is supplied in 4 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Post-weld heat treated | Use these values when ASME requires stress relief near 605 °C for 1 h with furnace cooling on pressure vessels or thick-wall joints; strength falls and elongation rises to 29 %. | 490 | 590 | 29 | 175 HB | — |
As welded, 100 % CO₂ shielding | Pick 100 % CO₂ shielding for field work where cost leads and −60 °C class toughness is enough; as-welded strength drops slightly to 500 MPa yield and 605 MPa tensile. | 500 | 605 | 25 | 188 HB | 6.2 % IACS |
AWDefault As-welded deposit | Use the as-welded, all-weld-metal condition as delivered for routine low-temperature structural joints where no post-weld heat treatment is specified. | 515 | 620 | 26 | 190 HB | — |
As welded, 75-80%Ar / balance CO₂ shielding | Choose 75–80 % Ar / balance CO₂ shielding when best low-temperature impact values and minimum spatter are required; as welded it gives 530 MPa yield and 630 MPa tensile. | 530 | 630 | 27 | 195 HB | 6 % IACS |
What is E80C-Ni3?
E80C-Ni3 (UNS W23030) is a nominal 3.25 % nickel composite metal-cored electrode, the highest-nickel member of the Ni-series low-alloy flux-cored fillers and the one with the best low-temperature toughness. It is used on steels for arctic pipelines, cold-climate offshore structures and low-temperature storage vessels, depositing 515 MPa yield, 620 MPa tensile, 26 % elongation and about 190 HB (91 HRB). Toughness depends on process control: interpass below 150 °C, heat input ≤ 2.0 kJ/mm and dry wire storage. The deposit offers no corrosion resistance beyond carbon steel, so blast and coat; E80C-Ni2 is the lower-cost option for milder cold service. E80C-Ni3 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,440°C (2,624 °F). E80C-Ni3 has a yield strength of 515 MPa (74.7 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 66% of steel grades. Elongation at break is 26% and the elastic modulus is 205 GPa (29.7 Msi).
What is E80C-Ni3 used for?
- Arctic pipeline steel
- LNG-adjacent structural steel
- Cold climate offshore structures
- Low-temperature storage vessels
Advantages
- Tough — resists crack growth — 130 MPa·√m (118.3 ksi·√in), better than 89% of steel grades
- Readily welded — 88/100, better than 87% of steel grades
- Ductile — tolerates forming and impact — 26%, better than 82% of steel grades
Limitations
- High embodied carbon — 3 kg CO₂/kg, worse than 91% of steel grades
- Low electrical conductivity — 6 % IACS, worse than 78% of steel grades
E80C-Ni3 properties
Typical room-temperature values for E80C-Ni3-AW; bars are the position among steel grades.
Physical3
E80C-Ni3 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,440°C (2,624 °F).
Mechanical15
E80C-Ni3 has a yield strength of 515 MPa (74.7 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 66% of steel grades. Elongation at break is 26% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
E80C-Ni3 is rated for continuous service to 400°C (752 °F). It conducts heat at 39 W/m·K (22.5 BTU/hr·ft·°F), worse than 67% of steel grades. Thermal expansion is 11.8 µm/m·K (6.56 µin/in·°F).
Electrical3
E80C-Ni3 conducts electricity at 6 % IACS, worse than 78% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (13/100), better than 66% of steel grades.
Sustainability4
Producing a kilogram of E80C-Ni3 takes about 40 MJ of energy and emits 3 kg of CO₂ — more than 91% of steel grades. Typical recycled content is 25%.
Manufacturability7
E80C-Ni3's machinability is good (55/100, better than 62% of steel grades); weldability excellent (88/100); formability fair (45/100).
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 steel family
Yield strength against density for every steel grade FabDigit runs. E80C-Ni3 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with E80C-Ni3
Is E80C-Ni3 easy to machine?
The deposited metal is fine-grained bainite/ferrite at about 190 HB and machines normally with carbide tooling; the post-weld heat treated condition cuts more easily.
Can E80C-Ni3 be welded?
Use M21 or CO₂ shielding, mainly in flat and horizontal positions; hold interpass temperature below 150 °C and heat input at or below 2.0 kJ/mm to preserve low-temperature impact values, and keep the wire in dry storage.
Can E80C-Ni3 be formed, bent or molded?
This is a welding filler with no forming operations; groove design and interpass slag removal directly determine joint toughness.
E80C-Ni3 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 |
|---|---|---|
| Cdeposited metal analysis | ≤ 0.12 | 0.05 |
| Mn | ≤ 1.25 | 0.9 |
| Si | ≤ 0.8 | 0.4 |
| Nikey element for low-temperature toughness | 2.75 – 3.75 | 3.25 |
| Cr | ≤ 0.15 | 0.03 |
| Mo | ≤ 0.35 | 0.02 |
| V | ≤ 0.05 | 0.01 |
| Cucounted when a copper coating is present | ≤ 0.35 | 0.05 |
| P | ≤ 0.03 | 0.01 |
| S | ≤ 0.03 | 0.01 |
| Fe | balance |
What surface finishes work on E80C-Ni3?
Welds can be ground flush and painted, or thermally sprayed with aluminium or zinc for corrosion protection; anodizing does not apply, and low-temperature equipment surfaces are usually blast-cleaned and epoxy coated.
Surface treatments FabDigit runs on steel 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).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel E80C-Ni3 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- W23030
- Also called
- AWS E80C-Ni3AWS E55C-Ni3
How much does E80C-Ni3 cost?
E80C-Ni3 is a premium-cost steel ($$$), cheaper than about 51% 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.
E80C-Ni3 — frequently asked
What is E80C-Ni3 used for?
E80C-Ni3 is typically used for arctic pipeline steel, LNG-adjacent structural steel, cold climate offshore structures and low-temperature storage vessels. In short: best low-temperature toughness in series; 3.25 % Ni deposit; arctic-service filler.
What is the yield strength of E80C-Ni3?
E80C-Ni3 has a typical yield strength of 515 MPa (74.7 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 66% of steel grades. Strength varies by condition: see the 4 listed tempers.
Is E80C-Ni3 easy to machine?
Reasonably — machinability is rated good (55/100, better than 62% of steel grades). The deposited metal is fine-grained bainite/ferrite at about 190 HB and machines normally with carbide tooling; the post-weld heat treated condition cuts more easily.
Can E80C-Ni3 be welded?
Yes — weldability is rated excellent (88/100). Use M21 or CO₂ shielding, mainly in flat and horizontal positions; hold interpass temperature below 150 °C and heat input at or below 2.0 kJ/mm to preserve low-temperature impact values, and keep the wire in dry storage.
What surface finishes work on E80C-Ni3?
Welds can be ground flush and painted, or thermally sprayed with aluminium or zinc for corrosion protection; anodizing does not apply, and low-temperature equipment surfaces are usually blast-cleaned and epoxy coated.
Can E80C-Ni3 be formed, bent or molded?
This is a welding filler with no forming operations; groove design and interpass slag removal directly determine joint toughness.
What is the maximum service temperature of E80C-Ni3?
E80C-Ni3 is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between E80C-Ni3-AW and E80C-Ni3 PWHT?
AW is the default condition — use the as-welded, all-weld-metal condition as delivered for routine low-temperature structural joints where no post-weld heat treatment is specified. PWHT: use these values when ASME requires stress relief near 605 °C for 1 h with furnace cooling on pressure vessels or thick-wall joints; strength falls and elongation rises to 29 %. Yield strength is 515 MPa in AW versus 490 MPa in PWHT.
How much does E80C-Ni3 cost?
E80C-Ni3 is a premium-cost steel ($$$), cheaper than about 51% 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 A5.29/A5.29M — Low-Alloy Steel Electrodes for Flux Cored Arc Welding — American Welding Society (2010)
- ASME BPVC Section II Part C, SFA-5.29 — ASME (2023)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.6 — Welding, Brazing, and Soldering — ASM International (1993)
- Ni-bearing flux-cored / metal-cored wire all-weld-metal data (Lincoln, ESAB, Kobelco class datasheets) — various producers (2023)
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.