Steel EH14-AW (As-welded deposit)
Heat-treated state · default condition
Default condition: multi-pass SAW deposit tested as-welded per AWS A5.17; use for general structural and pressure-part welds without PWHT.
Values for the AW condition
Other EH14 tempers and conditions
EH14 is listed in 2 conditions; see the grade overview at EH14.
- PWHT
- AW
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Post-weld heat treated | Choose when code-required stress relief is applied: strength drops slightly, toughness and dimensional stability improve. | 430 | 520 | 29 | 170 HB | 9.5 % IACS |
AWDefaultThis page As-welded deposit | Default condition: multi-pass SAW deposit tested as-welded per AWS A5.17; use for general structural and pressure-part welds without PWHT. | 460 | 550 | 27 | 185 HB | — |
What is EH14-AW?
EH14-AW is EH14 heat treated to AW — default condition: multi-pass SAW deposit tested as-welded per AWS A5.17; use for general structural and pressure-part welds without PWHT. EH14-AW has a yield strength of 460 MPa (66.7 ksi) and a tensile strength of 550 MPa (79.8 ksi) — stronger than 55% of steel grades. Elongation at break is 27% and the elastic modulus is 205 GPa (29.7 Msi). EH14-AW has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,460°C (2,660 °F).
Advantages
- Readily welded — 88/100, better than 87% of steel grades
- Ductile — tolerates forming and impact — 27%, better than 86% of steel grades
Limitations
- Hard to polish — 45/100, worse than 84% of steel grades
EH14-AW properties
Typical room-temperature values for EH14-AW; 10 are specific to this condition. Other listed values are EH14 reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
EH14-AW has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,460°C (2,660 °F).
Mechanical15
EH14-AW has a yield strength of 460 MPa (66.7 ksi) and a tensile strength of 550 MPa (79.8 ksi) — stronger than 55% of steel grades. Elongation at break is 27% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
EH14-AW is rated for continuous service to 400°C (752 °F). It conducts heat at 44 W/m·K (25.4 BTU/hr·ft·°F), better than 57% of steel grades. Thermal expansion is 12.2 µm/m·K (6.78 µin/in·°F).
Electrical3
EH14-AW conducts electricity at 9 % IACS, better than 71% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of EH14-AW takes about 28 MJ of energy and emits 2.2 kg of CO₂ — less than 56% of steel grades. Typical recycled content is 30%.
Manufacturability7
EH14-AW's machinability is good (55/100, better than 62% of steel grades); weldability excellent (88/100); formability good (55/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with EH14-AW
Is EH14 easy to machine?
Deposit machines like normalized C-Mn steel (~60 % of AISI 1212); grind or mill weld caps with sharp carbide and expect harder HAZ zones on thick sections.
Can EH14 be welded?
Designed for submerged arc (single, tandem or multi-wire) with neutral to slightly basic flux; DCEP for most work, keep interpass ≤250 °C and match flux to required CVN class.
Can EH14 be formed, bent or molded?
Supplied as cold-drawn copper-coated wire — keep cast/helix within spec, store dry to avoid rust and hydrogen pickup in the weld.
What surface finishes work on EH14?
Weld metal rusts as fast as mild steel: blast, prime and paint, or hot-dip galvanize the assembly; no anodizing possible.
EH14 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 |
|---|---|---|
| C | 0.1 – 0.2 | 0.14 |
| Mnhigh-Mn class, compensates Mn loss to slag | 1.7 – 2.2 | 1.95 |
| Sideoxidation relies on flux | ≤ 0.1 | 0.05 |
| S | ≤ 0.03 | 0.02 |
| P | ≤ 0.03 | 0.02 |
| Cuincluding copper coating | ≤ 0.35 | 0.2 |
| Other (total)residual elements total | ≤ 0.5 | — |
| Fe | balance | — |
EH14-AW — frequently asked
What is EH14-AW used for?
EH14-AW is typically used for heavy plate submerged arc welding, pressure vessel fabrication and structural steel. In short: higher-manganese SAW wire; stronger deposit than EM12K; suits multi-wire high dilution.
What is the yield strength of EH14-AW?
EH14-AW has a typical yield strength of 460 MPa (66.7 ksi) and a tensile strength of 550 MPa (79.8 ksi) — stronger than 55% of steel grades. Strength varies by condition: see the 2 listed tempers.
Is EH14-AW easy to machine?
Reasonably — machinability is rated good (55/100, better than 62% of steel grades). Deposit machines like normalized C-Mn steel (~60 % of AISI 1212); grind or mill weld caps with sharp carbide and expect harder HAZ zones on thick sections.
Can EH14-AW be welded?
Yes — weldability is rated excellent (88/100). Designed for submerged arc (single, tandem or multi-wire) with neutral to slightly basic flux; DCEP for most work, keep interpass ≤250 °C and match flux to required CVN class.
What surface finishes work on EH14-AW?
Weld metal rusts as fast as mild steel: blast, prime and paint, or hot-dip galvanize the assembly; no anodizing possible.
Can EH14-AW be formed, bent or molded?
Supplied as cold-drawn copper-coated wire — keep cast/helix within spec, store dry to avoid rust and hydrogen pickup in the weld.
What is the maximum service temperature of EH14-AW?
EH14-AW 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 EH14-AW and EH14 PWHT?
AW is the default condition — default condition: multi-pass SAW deposit tested as-welded per AWS A5.17; use for general structural and pressure-part welds without PWHT. PWHT: choose when code-required stress relief is applied: strength drops slightly, toughness and dimensional stability improve. Yield strength is 460 MPa in AW versus 430 MPa in PWHT.
Sources
- AWS A5.17/A5.17M — Carbon Steel Electrodes and Fluxes for Submerged Arc Welding — American Welding Society (2019)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering — ASM International (1993)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- SAW solid wire EH14 datasheets (Lincoln Electric / ESAB / ) — various producers (2023)
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.