Stainless Steel ER410
UNS S41080
ER410 is a solid martensitic stainless filler wire (UNS S41080) that matches 410-type 12% Cr base metal, supplied as spooled MIG wire and cut TIG rod.
Reference datasheet — ER410 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
ER410 tempers and conditions
ER410 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 |
|---|---|---|---|---|---|---|
PWHT 760 °C | Standard qualification/service condition: temper 730–760 °C, air cool — best combination of ductility, toughness and corrosion resistance. | 450 | 620 | 23 | 22 HRC | — |
SR 650 °C | Lower-temperature temper used when higher strength must be retained with only partial softening (e.g. 12Cr rotor and valve repairs). | 540 | 700 | 18 | 30 HRC | 3 % IACS |
AWDefault As-welded deposit | Reference deposit condition straight off the arc with 150–300 °C preheat; hard and crack-sensitive — use only for wear overlays or where PWHT follows later. | 620 | 790 | 14 | 40 HRC | — |
Quenched and tempered | Full re-austenitize and temper of the weldment/overlay to homogenize the deposit and reach a specified hardness band on 410-type components. | 650 | 830 | 17 | 28 HRC | 3 % IACS |
Supply forms, finishes and certifications
Ways ER410 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 | Wire as supplied | Supply form |
What is ER410?
ER410 is a solid martensitic stainless filler wire (UNS S41080) that matches 410-type 12% Cr base metal, supplied as spooled MIG wire and cut TIG rod. Engineers use it to restore the strength and hardness of 410 valve, pump and turbine parts: the as-welded deposit runs about 620 MPa yield, 790 MPa tensile, 14% elongation and 40 HRC. It generally requires pre- and post-weld heat treatment, machinability is poor (score 25) and corrosion resistance is modest, with service limited to about 400 °C. Choose ER410NiMo when higher toughness and crack resistance are required. ER410 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,480°C (2,696 °F). ER410 has a yield strength of 620 MPa (89.9 ksi) and a tensile strength of 790 MPa (115 ksi) — stronger than 88% of stainless steel grades. Elongation at break is 14% and the elastic modulus is 200 GPa (29 Msi).
What is ER410 used for?
- 410 stainless valve and pump component repair
- Steam turbine blade welding
- 12% Cr pump casing and impeller weld repair
- Petrochemical valve trim rebuilding
- Corrosion-resistant overlay on carbon steel shafts
- Sleeve and bushing wear surface build-up
Advantages
- High electrical conductivity — 3 % IACS, better than 95% of stainless steel grades
- High strength — 620 MPa (89.9 ksi), better than 88% of stainless steel grades
- Conducts heat well — 24.9 W/m·K (14.4 BTU/hr·ft·°F), better than 87% of stainless steel grades
- Low embodied carbon — 3.6 kg CO₂/kg, better than 83% of stainless steel grades
Limitations
- Needs corrosion protection — 38/100, worse than 95% of stainless steel grades
- Limited ductility — 14%, worse than 91% of stainless steel grades
- Difficult to machine — 25/100, worse than 88% of stainless steel grades
- Limited formability — 20/100, worse than 86% of stainless steel grades
- Difficult to weld — 40/100, worse than 83% of stainless steel grades
ER410 properties
Typical room-temperature values for ER410-AW; bars are the position among stainless steel grades.
Physical3
ER410 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,480°C (2,696 °F).
Mechanical13
ER410 has a yield strength of 620 MPa (89.9 ksi) and a tensile strength of 790 MPa (115 ksi) — stronger than 88% of stainless steel grades. Elongation at break is 14% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
ER410 is rated for continuous service to 400°C (752 °F). It conducts heat at 24.9 W/m·K (14.4 BTU/hr·ft·°F), better than 87% of stainless steel grades. Thermal expansion is 9.9 µm/m·K (5.5 µin/in·°F).
Electrical3
ER410 conducts electricity at 3 % IACS, better than 95% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (38/100), worse than 95% of stainless steel grades.
Sustainability4
Producing a kilogram of ER410 takes about 50 MJ of energy and emits 3.6 kg of CO₂ — less than 80% of stainless steel grades. Typical recycled content is 60%.
Manufacturability6
ER410's machinability is poor (25/100, worse than 88% of stainless steel grades); weldability fair (40/100); formability poor (20/100).
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 stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. ER410 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ER410
Is ER410 easy to machine?
Machine only after tempering; as-welded deposit at ~40 HRC needs carbide or CBN tooling, rigid setups and low feeds.
Can ER410 be welded?
GTAW/GMAW/SAW with Ar or Ar-2%CO₂; preheat and hold interpass 150–300 °C, cool slowly to ~150 °C, then temper 730–760 °C for toughness and to avoid hydrogen/cold cracking.
Can ER410 be formed, bent or molded?
Deposit is essentially non-formable in the hardened state; any straightening or bending must be done after full temper and at moderate strain.
ER410 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 |
|---|---|---|
| CAWS A5.9 ER410 | ≤ 0.12 | 0.08 |
| Cr | 11.5 – 13.5 | 12.5 |
| Ni | ≤ 0.6 | 0.3 |
| Mo | ≤ 0.75 | 0.2 |
| Mn | ≤ 0.6 | 0.4 |
| Si | ≤ 0.5 | 0.35 |
| Cu | ≤ 0.75 | 0.1 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.03 | 0.01 |
| Fe | balance |
What surface finishes work on ER410?
Grinds and polishes to a fine finish; passivate in nitric acid after grinding to restore the chromium oxide film — do not plate over untempered martensite (hydrogen embrittlement risk).
Surface treatments FabDigit runs on stainless 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).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel ER410 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S41080
How much does ER410 cost?
ER410 is a premium-cost stainless 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.
ER410 — frequently asked
What is ER410 used for?
ER410 is typically used for 410 stainless valve and pump component repair, steam turbine blade welding, 12% Cr pump casing and impeller weld repair, petrochemical valve trim rebuilding, corrosion-resistant overlay on carbon steel shafts and sleeve and bushing wear surface build-up. In short: matches 410 martensitic base; hard 40 HRC deposit; requires preheat and temper.
What is the yield strength of ER410?
ER410 has a typical yield strength of 620 MPa (89.9 ksi) and a tensile strength of 790 MPa (115 ksi) — stronger than 88% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is ER410 easy to machine?
Not especially — machinability is rated poor (25/100, worse than 88% of stainless steel grades). Machine only after tempering; as-welded deposit at ~40 HRC needs carbide or CBN tooling, rigid setups and low feeds.
Can ER410 be welded?
With care — weldability is rated fair (40/100). GTAW/GMAW/SAW with Ar or Ar-2%CO₂; preheat and hold interpass 150–300 °C, cool slowly to ~150 °C, then temper 730–760 °C for toughness and to avoid hydrogen/cold cracking.
What surface finishes work on ER410?
Grinds and polishes to a fine finish; passivate in nitric acid after grinding to restore the chromium oxide film — do not plate over untempered martensite (hydrogen embrittlement risk).
Can ER410 be formed, bent or molded?
Deposit is essentially non-formable in the hardened state; any straightening or bending must be done after full temper and at moderate strain.
What is the maximum service temperature of ER410?
ER410 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 ER410-AW and ER410 PWHT760?
AW is the default condition — reference deposit condition straight off the arc with 150–300 °C preheat; hard and crack-sensitive — use only for wear overlays or where PWHT follows later. PWHT760: standard qualification/service condition: temper 730–760 °C, air cool — best combination of ductility, toughness and corrosion resistance. Yield strength is 620 MPa in AW versus 450 MPa in PWHT760.
How much does ER410 cost?
ER410 is a premium-cost stainless 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 A5.9/A5.9M — Bare Stainless Steel Welding Electrodes and Rods — AWS (2017)
- ASM Specialty Handbook: Stainless Steels — ASM International (1994)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering — ASM International (1993)
- Stainless filler metal ER410 datasheets (Böhler Welding, Lincoln Electric, ESAB) — various (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.