Steel E90C-D2
UNS W19230
E90C-D2 is a Mn-Mo alloyed composite cored electrode, UNS W19230, producing roughly 90 ksi tensile weld metal for high-strength low-alloy structural steels.
Reference datasheet — E90C-D2 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
E90C-D2 tempers and conditions
E90C-D2 is supplied in 3 conditions, soft to hard. AW is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Post-weld heat treated | Use for pressure-vessel and thick-section work requiring post-weld stress relief — strength drops modestly, ductility and low-temperature toughness improve. | 545 | 640 | 25 | 11 HRC | 8 % IACS |
AWDefault As-welded deposit | Standard as-deposited condition with 75–80 % Ar / balance CO₂ shielding — best combination of strength, toughness and low spatter. | 580 | 670 | 22 | 205 HB | — |
AW-CO₂ | Choose when only CO₂ gas is available (common in China); slightly higher strength but somewhat lower toughness and more spatter/silicon islands. | 600 | 690 | 20 | 18 HRC | 7.8 % IACS |
What is E90C-D2?
E90C-D2 is a Mn-Mo alloyed composite cored electrode, UNS W19230, producing roughly 90 ksi tensile weld metal for high-strength low-alloy structural steels. Engineers use it where good toughness is required alongside 580 MPa yield, 670 MPa tensile, 22 % elongation and about 205 HB (94 HRB) in the as-deposited condition; it is supplied as spooled cored wire for semi-automatic and mechanised welding. Service is limited to 400 °C and the deposit has no corrosion resistance, so coating is required outdoors. Where higher toughness at low temperature is needed, E90C-K3 is the nearer choice. E90C-D2 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). E90C-D2 has a yield strength of 580 MPa (84.1 ksi) and a tensile strength of 670 MPa (97.2 ksi) — stronger than 75% of steel grades. Elongation at break is 22% and the elastic modulus is 205 GPa (29.7 Msi).
What is E90C-D2 used for?
- High-strength low-alloy structural steel
- Heavy equipment fabrication
- Mining and construction machinery
- Structural steel repair
Advantages
- Readily welded — 90/100, better than 90% of steel grades
- High strength — 580 MPa (84.1 ksi), better than 75% of steel grades
Limitations
- Hard to polish — 45/100, worse than 84% of steel grades
- High embodied carbon — 2.5 kg CO₂/kg, worse than 82% of steel grades
E90C-D2 properties
Typical room-temperature values for E90C-D2-AW; bars are the position among steel grades.
Physical3
E90C-D2 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).
Mechanical14
E90C-D2 has a yield strength of 580 MPa (84.1 ksi) and a tensile strength of 670 MPa (97.2 ksi) — stronger than 75% of steel grades. Elongation at break is 22% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
E90C-D2 is rated for continuous service to 400°C (752 °F). It conducts heat at 42 W/m·K (24.3 BTU/hr·ft·°F), worse than 56% of steel grades. Thermal expansion is 12.3 µm/m·K (6.83 µin/in·°F).
Electrical3
E90C-D2 conducts electricity at 7.8 % IACS, worse than 57% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (13/100), better than 66% of steel grades.
Sustainability4
Producing a kilogram of E90C-D2 takes about 33 MJ of energy and emits 2.5 kg of CO₂ — more than 76% of steel grades. Typical recycled content is 35%.
Manufacturability5
E90C-D2's machinability is fair (50/100, worse than 53% of steel grades); weldability excellent (90/100); formability fair (40/100).
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. E90C-D2 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with E90C-D2
Is E90C-D2 easy to machine?
As-deposited beads at ~200 HB machine like normalized Mn-Mo steel — carbide tooling, moderate speeds; expect hard spots at fusion lines and slag/oxide islands that chip inserts.
Can E90C-D2 be welded?
GMAW/metal-cored process with 75–80 % Ar-CO₂ (or 100 % CO₂), DCEP, spray or pulsed transfer; preheat 100–150 °C on thick or high-carbon-equivalent base metal, keep interpass ≤ 250 °C and heat input moderate to protect toughness.
Can E90C-D2 be formed, bent or molded?
Not a wrought product — supplied as spooled wire; deposit shape is set by joint design, and weld metal has limited cold-forming capacity.
E90C-D2 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 |
|---|---|---|
| Cundiluted weld metal analysis per AWS A5.28 D2 | ≤ 0.12 | 0.08 |
| Mn | 1.6 – 2.1 | 1.85 |
| Si | ≤ 0.8 | 0.55 |
| Moprimary strengthening addition of the D2 family | 0.4 – 0.65 | 0.5 |
| Niresidual | ≤ 0.15 | 0.05 |
| Crresidual | ≤ 0.15 | 0.05 |
| Vresidual | ≤ 0.05 | 0.01 |
| Cuincludes any copper coating | ≤ 0.35 | 0.1 |
| P | ≤ 0.03 | 0.01 |
| S | ≤ 0.03 | 0.01 |
| Febalance; verify exact limits against the current edition of AWS A5.28/A5.28M and the producer CMTR | balance |
What surface finishes work on E90C-D2?
Nearly slag-free deposits need only light brushing of silicon islands; weld metal rusts freely and must be blasted then painted, metallized or galvanized for outdoor service.
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 E90C-D2 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- W19230
- Also called
- AWS E90C-D2AWS E62C-D2
How much does E90C-D2 cost?
E90C-D2 is a standard-cost steel ($$), cheaper than about 71% 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.
E90C-D2 — frequently asked
What is E90C-D2 used for?
E90C-D2 is typically used for high-strength low-alloy structural steel, heavy equipment fabrication, mining and construction machinery and structural steel repair. In short: economical 90 ksi HSLA filler; near slag-free cored deposit; tougher than plain carbon fillers.
What is the yield strength of E90C-D2?
E90C-D2 has a typical yield strength of 580 MPa (84.1 ksi) and a tensile strength of 670 MPa (97.2 ksi) — stronger than 75% of steel grades. Strength varies by condition: see the 3 listed tempers.
Is E90C-D2 easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 53% of steel grades). As-deposited beads at ~200 HB machine like normalized Mn-Mo steel — carbide tooling, moderate speeds; expect hard spots at fusion lines and slag/oxide islands that chip inserts.
Can E90C-D2 be welded?
Yes — weldability is rated excellent (90/100). GMAW/metal-cored process with 75–80 % Ar-CO₂ (or 100 % CO₂), DCEP, spray or pulsed transfer; preheat 100–150 °C on thick or high-carbon-equivalent base metal, keep interpass ≤ 250 °C and heat input moderate to protect toughness.
What surface finishes work on E90C-D2?
Nearly slag-free deposits need only light brushing of silicon islands; weld metal rusts freely and must be blasted then painted, metallized or galvanized for outdoor service.
Can E90C-D2 be formed, bent or molded?
Not a wrought product — supplied as spooled wire; deposit shape is set by joint design, and weld metal has limited cold-forming capacity.
What is the maximum service temperature of E90C-D2?
E90C-D2 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 E90C-D2-AW and E90C-D2 PWHT?
AW is the default condition — standard as-deposited condition with 75–80 % Ar / balance CO₂ shielding — best combination of strength, toughness and low spatter. PWHT: use for pressure-vessel and thick-section work requiring post-weld stress relief — strength drops modestly, ductility and low-temperature toughness improve. Yield strength is 580 MPa in AW versus 545 MPa in PWHT.
How much does E90C-D2 cost?
E90C-D2 is a standard-cost steel ($$), cheaper than about 71% 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 A5.28/A5.28M — Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc Welding — American Welding Society (2020)
- AWS D1.1/D1.1M Structural Welding Code — Steel — American Welding Society (2020)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering — ASM International (1993)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Metal-cored 90 ksi low-alloy wire (D2 type) all-weld-metal data — Lincoln Electric / Hobart / Kobelco (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.