Steel 14MoV6-3
EN 14MoV6-3
14MoV6-3 (1.7715) is a low-carbon molybdenum-vanadium creep-resisting steel from the EN 10083 group, using Mo and V carbides to hold strength at elevated temperature with a lean alloy content.
Reference datasheet — 14MoV6-3 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 +NT condition
14MoV6-3 tempers and conditions
14MoV6-3 is supplied in 5 conditions, soft to hard. +NT is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, ordered for heavy machining or cold forming before final normalize-and-temper. | 290 | 470 | 26 | 145 HB | 7.8 % IACS |
+NTDefault Normalized and tempered | Standard delivery condition for seamless boiler and steam-line tube/pipe; best combination of creep strength and toughness. | 380 | 540 | 22 | 165 HB | — |
Normalized | Used for plate and some hot-formed parts where a tempering step is added later or PWHT effectively tempers the part. | 400 | 580 | 20 | 180 HB | 7.5 % IACS |
Hot rolled | Mill hot-rolled bar or hollow supplied for re-forging or for parts that will be heat treated by the fabricator. | 400 | 600 | 19 | 190 HB | 7.5 % IACS |
Quenched and tempered | Chosen for thick flanges, valve bodies and header forgings needing uniform through-thickness properties. | 420 | 580 | 21 | 180 HB | 7.5 % IACS |
What is 14MoV6-3?
14MoV6-3 (1.7715) is a low-carbon molybdenum-vanadium creep-resisting steel from the EN 10083 group, using Mo and V carbides to hold strength at elevated temperature with a lean alloy content. In the normalized and tempered condition it gives 380 MPa yield, 540 MPa tensile, 22% elongation and about 165 HB, with service to 560 °C; typical forms are seamless tube, header pipe, plate and flanges. It is the most weldable grade in this Cr-Mo-V group (score 55) but still needs 200-300 °C preheat and 700-750 °C PWHT, and it offers no corrosion resistance. 16Mo3 is the simpler choice below about 500 °C. 14MoV6-3 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). 14MoV6-3 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 68% of steel grades. Elongation at break is 22% and the elastic modulus is 210 GPa (30.5 Msi).
What is 14MoV6-3 used for?
- Boiler tubes and headers
- Steam piping
- High-temperature flanges
- Power generation components
Advantages
- High service temperature — 560°C (1,040 °F), better than 96% of steel grades
14MoV6-3 properties
Typical room-temperature values for 14MoV6-3-+NT; bars are the position among steel grades.
Physical3
14MoV6-3 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
14MoV6-3 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 68% of steel grades. Elongation at break is 22% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
14MoV6-3 is rated for continuous service to 560°C (1,040 °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 µm/m·K (6.67 µin/in·°F).
Electrical3
14MoV6-3 conducts electricity at 7.5 % IACS, worse than 67% of steel grades.
Chemical & Environmental3
Corrosion resistance is poor (15/100), better than 75% of steel grades.
Sustainability4
Producing a kilogram of 14MoV6-3 takes about 30 MJ of energy and emits 2.2 kg of CO₂ — more than 56% of steel grades. Typical recycled content is 30%.
Manufacturability7
14MoV6-3's machinability is fair (50/100, worse than 53% of steel grades); weldability good (55/100); formability fair (50/100).
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. 14MoV6-3 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 14MoV6-3
Is 14MoV6-3 easy to machine?
Machines like a 175 HB low-alloy steel — carbide inserts, moderate speeds, rigid setup; the V-carbides make it slightly more abrasive than 16Mo3.
Can 14MoV6-3 be welded?
Weldable by TIG/SMAW/SAW with matching CrMoV filler; preheat 200–300 °C, control interpass, and PWHT at 700–750 °C to restore toughness and creep life.
Can 14MoV6-3 be formed, bent or molded?
Hot bend/forge at 1050–850 °C followed by re-normalizing and tempering; cold bending is limited and needs subsequent stress relief.
14MoV6-3 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 – 0.18 | 0.14 |
| Si | 0.15 – 0.35 | 0.25 |
| Mn | 0.4 – 0.7 | 0.55 |
| P | ≤ 0.03 | |
| S | ≤ 0.02 | |
| Cr | 0.3 – 0.6 | 0.45 |
| Mo | 0.5 – 0.7 | 0.6 |
| V | 0.22 – 0.32 | 0.27 |
| Niresidual max | ≤ 0.3 | |
| Altotal Al, max | ≤ 0.02 | |
| Fe | balance |
What surface finishes work on 14MoV6-3?
No anodizing; use pickling + phosphating, aluminizing or silicone/aluminium high-temperature paint, and insulate for steam 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 14MoV6-3 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.7715
How much does 14MoV6-3 cost?
14MoV6-3 is a standard-cost steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
14MoV6-3 — frequently asked
What is 14MoV6-3 used for?
14MoV6-3 is typically used for boiler tubes and headers, steam piping, high-temperature flanges and power generation components. In short: most weldable CrMoV creep steel; service to 560 °C; lean-alloy pipe steel.
What is the yield strength of 14MoV6-3?
14MoV6-3 has a typical yield strength of 380 MPa (55.1 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 68% of steel grades. Strength varies by condition: see the 5 listed tempers.
Is 14MoV6-3 easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 53% of steel grades). Machines like a 175 HB low-alloy steel — carbide inserts, moderate speeds, rigid setup; the V-carbides make it slightly more abrasive than 16Mo3.
Can 14MoV6-3 be welded?
Yes — weldability is rated good (55/100). Weldable by TIG/SMAW/SAW with matching CrMoV filler; preheat 200–300 °C, control interpass, and PWHT at 700–750 °C to restore toughness and creep life.
What surface finishes work on 14MoV6-3?
No anodizing; use pickling + phosphating, aluminizing or silicone/aluminium high-temperature paint, and insulate for steam service.
Can 14MoV6-3 be formed, bent or molded?
Hot bend/forge at 1050–850 °C followed by re-normalizing and tempering; cold bending is limited and needs subsequent stress relief.
What is the maximum service temperature of 14MoV6-3?
14MoV6-3 is rated for continuous use to about 560°C (1,040 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 14MoV6-3 cost?
14MoV6-3 is a standard-cost steel ($$), 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
- EN 10216-2 — Seamless steel tubes for pressure purposes, non-alloy and alloy steels with specified elevated temperature properties — CEN (2020)
- DIN 17175 — Seamless tubes of heat-resistant steels (14MoV6 3) — DIN (1979)
- EN 10222-2 — Steel forgings for pressure purposes: ferritic and martensitic steels with elevated temperature properties — CEN (2017)
- Stahlschlüssel / Key to Steel — Verlag Stahlschlüssel Wegst (2019)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
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.