Stainless Steel 1.4110
EN 1.4110
1.4110 (X55CrMo14) is a medium-high carbon chromium-molybdenum martensitic stainless comparable to AISI 440A, where the carbon provides hardenability and the molybdenum addition improves corrosion resistance.
Reference datasheet — 1.4110 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 +A condition
1.4110 tempers and conditions
1.4110 is supplied in 5 conditions, soft to hard. +A 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 |
|---|---|---|---|---|---|---|
+ADefault Annealed | Stock supply condition for machining, blanking and cold forming before hardening. | 470 | 780 | 17 | 240 HB | — |
Cold drawn | Choose for close-tolerance bar and knife strip where extra straightness/flatness and a harder blanking stock are wanted before hardening. | 700 | 900 | 10 | 285 HB | — |
+QT tempered high | Used where higher toughness and lower distortion matter more than edge hardness; corrosion resistance drops slightly versus low tempering. | 1,400 | 1,600 | 6 | 48 HRC | — |
Quenched and tempered | Standard service condition for blades, bearing rings and wear parts needing maximum hardness with usable stainless behaviour. | 1,700 | 1,950 | 3 | 56 HRC | — |
+QT | Knife-blade and precision-bearing route: sub-zero step converts retained austenite for peak hardness and dimensional stability. | 1,800 | 2,050 | 2 | 58 HRC | — |
What is 1.4110?
1.4110 (X55CrMo14) is a medium-high carbon chromium-molybdenum martensitic stainless comparable to AISI 440A, where the carbon provides hardenability and the molybdenum addition improves corrosion resistance. It is bought as annealed or cold-drawn bar and strip for blades, instruments and small bearing parts, then hardened in the +QT, +QT-450 or cryogenically treated (+QT-CRYO) conditions. Annealed properties are 470 MPa yield, 780 MPa tensile, 17 % elongation and 240 HB; weldability is poor (score 20) and service is limited to about 400 °C. Choose 1.4112 (440B) when higher hardness and edge retention are needed. 1.4110 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,420°C (2,588 °F). 1.4110 has a yield strength of 470 MPa (68.2 ksi) and a tensile strength of 780 MPa (113 ksi) — stronger than 74% of stainless steel grades. Elongation at break is 17% and the elastic modulus is 215 GPa (31.2 Msi).
What is 1.4110 used for?
- cutlery
- surgical instruments
- bearings
Advantages
- Conducts heat well — 30 W/m·K (17.3 BTU/hr·ft·°F), better than 99% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
- High electrical conductivity — 2.9 % IACS, better than 87% of stainless steel grades
- Low embodied carbon — 3.6 kg CO₂/kg, better than 83% of stainless steel grades
Limitations
- Difficult to weld — 20/100, worse than 95% of stainless steel grades
- Needs corrosion protection — 40/100, worse than 93% of stainless steel grades
- Limited ductility — 17%, worse than 86% of stainless steel grades
- Limited service temperature — 400°C (752 °F), worse than 78% of stainless steel grades
1.4110 properties
Typical room-temperature values for 1.4110-+A; bars are the position among stainless steel grades.
Physical3
1.4110 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,420°C (2,588 °F).
Mechanical14
1.4110 has a yield strength of 470 MPa (68.2 ksi) and a tensile strength of 780 MPa (113 ksi) — stronger than 74% of stainless steel grades. Elongation at break is 17% and the elastic modulus is 215 GPa (31.2 Msi).
Thermal6
1.4110 is rated for continuous service to 400°C (752 °F). It conducts heat at 30 W/m·K (17.3 BTU/hr·ft·°F), better than 99% of stainless steel grades. Thermal expansion is 10.5 µm/m·K (5.83 µin/in·°F).
Electrical3
1.4110 conducts electricity at 2.9 % IACS, better than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (40/100), worse than 93% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4110 takes about 45 MJ of energy and emits 3.6 kg of CO₂ — less than 91% of stainless steel grades. Typical recycled content is 55%.
Manufacturability8
1.4110's machinability is fair (42/100, better than 79% of stainless steel grades); weldability poor (20/100); formability poor (30/100).
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. 1.4110 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4110
Is 1.4110 easy to machine?
Machine in the annealed state with sharp, rigid setups, low speeds and positive-rake carbide (or ground HSS) plus generous coolant; once hardened above ~50 HRC only grinding, EDM or CBN turning is practical.
Can 1.4110 be welded?
Poor weldability — high carbon gives hard, crack-prone martensite: preheat 200–300 °C, use matching or austenitic 309/312 filler, and temper/anneal immediately after welding; fusion joining is generally avoided.
Can 1.4110 be formed, bent or molded?
Blank and bend only in the soft-annealed condition with large radii; hot work 1100–850 °C followed by slow cooling and a full soft anneal at 750–800 °C.
1.4110 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 | 0.48 – 0.6 | 0.55 |
| Si | ≤ 1 | 0.4 |
| Mn | ≤ 1 | 0.5 |
| P | ≤ 0.04 | |
| S | ≤ 0.02 | |
| Cr | 13 – 15 | 14 |
| Mo | 0.5 – 0.8 | 0.65 |
| Vresidual/optional per EN 10088-3 | ≤ 0.15 | |
| Fe | balance |
What surface finishes work on 1.4110?
Grind and polish to a fine finish, then passivate (nitric or citric per ASTM A967) to restore the chromium oxide film; PVD (TiN/DLC) or hard chrome can be applied if bath temperature stays below the tempering temperature.
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 1.4110 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X55CrMo14
- Similar grades
- 440A
How much does 1.4110 cost?
1.4110 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.
1.4110 — frequently asked
What is 1.4110 used for?
1.4110 is typically used for cutlery, surgical instruments and bearings. In short: 440A-type stainless tool steel; mo-improved corrosion for blades; hardenable, effectively unweldable.
What is the yield strength of 1.4110?
1.4110 has a typical yield strength of 470 MPa (68.2 ksi) and a tensile strength of 780 MPa (113 ksi) — stronger than 74% of stainless steel grades. Strength varies by condition: see the 5 listed tempers.
Is 1.4110 easy to machine?
Not especially — machinability is rated fair (42/100, better than 79% of stainless steel grades). Machine in the annealed state with sharp, rigid setups, low speeds and positive-rake carbide (or ground HSS) plus generous coolant; once hardened above ~50 HRC only grinding, EDM or CBN turning is practical.
Can 1.4110 be welded?
Not readily — weldability is rated poor (20/100). Poor weldability — high carbon gives hard, crack-prone martensite: preheat 200–300 °C, use matching or austenitic 309/312 filler, and temper/anneal immediately after welding; fusion joining is generally avoided.
What surface finishes work on 1.4110?
Grind and polish to a fine finish, then passivate (nitric or citric per ASTM A967) to restore the chromium oxide film; PVD (TiN/DLC) or hard chrome can be applied if bath temperature stays below the tempering temperature.
Can 1.4110 be formed, bent or molded?
Blank and bend only in the soft-annealed condition with large radii; hot work 1100–850 °C followed by slow cooling and a full soft anneal at 750–800 °C.
What is the maximum service temperature of 1.4110?
1.4110 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.
How much does 1.4110 cost?
1.4110 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
- EN 10088-3 Stainless steels — semi-finished products, bars, rods and sections — CEN (2014)
- EN 10088-1 Stainless steels — list of stainless steels (physical properties) — CEN (2014)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Specialty Handbook — Stainless Steels — ASM International (1994)
- ASTM A276 / A959 (Type 440A comparison) — ASTM (2017)
- Martensitic knife and bearing steel datasheets (X55CrMo14 / 1.4110) — European long-product and strip mills (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.