Stainless Steel ER19-10H Aged
Heat-treated state
Aged = thermally aged / service-exposed
Use to assess welds after long-term exposure at 600–750 °C: carbide precipitation raises strength and hardness while cutting toughness and intergranular corrosion resistance.
Values for the Aged condition
Other ER19-10H tempers and conditions
ER19-10H is listed in 4 conditions; see the grade overview at ER19-10H.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Post-weld solution annealed | Solution anneal the weldment at about 1050 °C and water quench when sensitization must be removed and best ductility (50%) and corrosion resistance restored, at 260 MPa yield. | 260 | 560 | 50 | 150 HB | 2.5 % IACS |
As-welded submerged-arc deposit with neutral flux | Pick for longitudinal and circumferential submerged-arc seams in heavy-wall high-temperature piping and vessels; high heat input coarsens grain and lowers toughness slightly. | 380 | 570 | 38 | 175 HB | 2.4 % IACS |
AWDefault As-welded deposit | Most common state: use the as-welded TIG/MIG deposit with no post-weld heat treatment for high-temperature joints rated to 760 °C, accepting as-deposited ductility of 40%. | 405 | 600 | 40 | 180 HB | 2.4 % IACS |
AgedThis page Thermally aged / service-exposed | Use to assess welds after long-term exposure at 600–750 °C: carbide precipitation raises strength and hardness while cutting toughness and intergranular corrosion resistance. | 420 | 620 | 28 | 200 HB | 2.6 % IACS |
What is ER19-10H Aged?
ER19-10H Aged is ER19-10H heat treated to Aged — use to assess welds after long-term exposure at 600–750 °C: carbide precipitation raises strength and hardness while cutting toughness and intergranular corrosion resistance. ER19-10H Aged has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 64% of stainless steel grades. Elongation at break is 28% and the elastic modulus is 190 GPa (27.6 Msi). ER19-10H Aged has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,400°C (2,552 °F). AW is the default condition FabDigit quotes; Aged is available on request or by drawing note.
Advantages
- High electrical conductivity — 2.6 % IACS, better than 77% of stainless steel grades
Limitations
- Needs corrosion protection — 42/100, worse than 90% of stainless steel grades
- Low fracture toughness — 75 MPa·√m (68.3 ksi·√in), worse than 81% of stainless steel grades
ER19-10H Aged properties
Typical room-temperature values for ER19-10H Aged; 22 are specific to this condition. Other listed values are ER19-10H reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
ER19-10H Aged has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical16
ER19-10H Aged has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 64% of stainless steel grades. Elongation at break is 28% and the elastic modulus is 190 GPa (27.6 Msi).
Thermal6
ER19-10H Aged is rated for continuous service to 760°C (1,400 °F). It conducts heat at 16 W/m·K (9.24 BTU/hr·ft·°F), better than 58% of stainless steel grades. Thermal expansion is 17.3 µm/m·K (9.61 µin/in·°F).
Electrical3
ER19-10H Aged conducts electricity at 2.6 % IACS, better than 77% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 90% of stainless steel grades.
Sustainability4
Producing a kilogram of ER19-10H Aged takes about 55 MJ of energy and emits 4.5 kg of CO₂ — more than 50% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
ER19-10H Aged's machinability is poor (32/100, worse than 62% of stainless steel grades); weldability good (68/100); formability fair (40/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ER19-10H Aged
Is ER19-10H easy to machine?
Deposited metal work-hardens strongly and conducts heat poorly; use sharp carbide tooling with positive rake, low speed with heavy feed and generous coolant to keep the cut below the hardened layer.
Can ER19-10H be welded?
GTAW, GMAW and SAW are all suitable with Ar or Ar+2%O₂ / Ar+CO₂ mixtures; keep interpass temperature ≤150 °C and control heat input so the deposit retains 3–10 FN delta ferrite against hot cracking.
Can ER19-10H be formed, bent or molded?
Supplied as cold-drawn coil that spools and feeds freely; the weld metal itself work-hardens rapidly, so avoid heavy cold straightening of the deposit.
What surface finishes work on ER19-10H?
Remove slag and heat tint after welding, then pickle and passivate to rebuild the passive film. Mechanical polishing works; anodising is not applicable.
ER19-10H 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 |
|---|---|---|
| CHigh carbon for high-temperature creep strength | 0.04 – 0.08 | 0.06 |
| Cr | 18.5 – 20 | 19.3 |
| Ni | 9 – 11 | 10 |
| Mn | 1 – 2 | 1.6 |
| SiLimited to control hot cracking and fluidity | 0.3 – 0.65 | 0.45 |
| Moresidual maximum | ≤ 0.5 | — |
| Curesidual maximum | ≤ 0.75 | — |
| P | ≤ 0.03 | — |
| S | ≤ 0.03 | — |
| Nb+TaStabilizers limited to match 304H creep behavior (per order agreement) | ≤ 0.1 | — |
| Tiresidual limit (per order agreement) | ≤ 0.05 | — |
| CoOften further restricted for nuclear applications | ≤ 0.2 | — |
| Fe | balance | — |
ER19-10H Aged — frequently asked
What is ER19-10H Aged used for?
ER19-10H Aged is typically used for high-temperature 304H piping and headers, power generation austenitic pressure welds, superheater and reheater component joints, petrochemical furnace and reformer piping, boiler pressure-part repair welds and submerged-arc welding of heavy 304H sections. In short: high-carbon 308H filler; creep strength to 760 °C; matches 304H base metal.
What is the yield strength of ER19-10H Aged?
ER19-10H Aged has a typical yield strength of 420 MPa (60.9 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 64% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is ER19-10H Aged easy to machine?
Not especially — machinability is rated poor (32/100, worse than 62% of stainless steel grades). Deposited metal work-hardens strongly and conducts heat poorly; use sharp carbide tooling with positive rake, low speed with heavy feed and generous coolant to keep the cut below the hardened layer.
Can ER19-10H Aged be welded?
Yes — weldability is rated good (68/100). GTAW, GMAW and SAW are all suitable with Ar or Ar+2%O₂ / Ar+CO₂ mixtures; keep interpass temperature ≤150 °C and control heat input so the deposit retains 3–10 FN delta ferrite against hot cracking.
What surface finishes work on ER19-10H Aged?
Remove slag and heat tint after welding, then pickle and passivate to rebuild the passive film. Mechanical polishing works; anodising is not applicable.
Can ER19-10H Aged be formed, bent or molded?
Supplied as cold-drawn coil that spools and feeds freely; the weld metal itself work-hardens rapidly, so avoid heavy cold straightening of the deposit.
What is the maximum service temperature of ER19-10H Aged?
ER19-10H Aged is rated for continuous use to about 760°C (1,400 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ER19-10H-AW and ER19-10H-SA?
AW is the default condition — most common state: use the as-welded TIG/MIG deposit with no post-weld heat treatment for high-temperature joints rated to 760 °C, accepting as-deposited ductility of 40%. SA: solution anneal the weldment at about 1050 °C and water quench when sensitization must be removed and best ductility (50%) and corrosion resistance restored, at 260 MPa yield. Yield strength is 405 MPa in AW versus 260 MPa in SA.
Sources
- AWS A5.9/A5.9M — Bare Stainless Steel Welding Electrodes and Rods — AWS (2017)
- ASME BPVC Section II Part C, SFA-5.9 — ASME (2023)
- ASM Handbook Vol.6 Welding, Brazing and Soldering — ASM International (1993)
- ASM Handbook Vol.1 Properties and Selection: Irons, Steels — ASM International (1990)
- Stainless filler metal 308H / 19-10H data sheets — Böhler Welding / Lincoln Electric / (2024)
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.