Stainless Steel S41050
UNS S41050 · EN 1.4030
S41050 is a 12–13 % Cr low-carbon stainless in the 410 family, cross-referenced to EN 1.4030, chosen where moderate corrosion resistance is combined with cold-workability.
Reference datasheet — S41050 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 Annealed condition
S41050 tempers and conditions
S41050 is supplied in 4 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault softened (approx. 780–850 °C, air/furnace cool) | Standard stocked condition for plate, sheet and welded/seamless tube; maximum ductility for forming and welding. | 360 | 540 | 28 | 160 HB | — |
Cold drawn | Use when higher strength, tighter tolerance and better surface finish are needed without heat treatment. | 570 | 700 | 15 | 220 HB | — |
Q&T | Best strength/toughness balance for shafts, valve internals and turbine parts; tempered soft martensite. | 620 | 760 | 18 | 24 HRC | — |
Q&T | Pick for maximum hardness/wear of this low-carbon grade; hardness is capped by the ≤0.04 % C content. | 760 | 950 | 14 | 31 HRC | — |
Supply forms, finishes and certifications
Ways S41050 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BA | Bright annealed (hydrogen atmosphere) tube/strip | Surface finish |
HRAP | Hot rolled, annealed and pickled plate | Surface finish |
What is S41050?
S41050 is a 12–13 % Cr low-carbon stainless in the 410 family, cross-referenced to EN 1.4030, chosen where moderate corrosion resistance is combined with cold-workability. It is available annealed, BA, cold-drawn, HRAP and in high- and low-strength quenched-and-tempered conditions as sheet, tube and bar, with 360 MPa yield, 540 MPa tensile, 28 % elongation and 160 HB (85 HRB). Limits are a 600 °C maximum service temperature, a corrosion-resistance score of 42 that requires paint or coating in chloride exposure, and moderate machinability (score 50) with weldability 70 and formability 65. Consider 304 where chloride resistance governs. S41050 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,480°C (2,696 °F). S41050 has a yield strength of 360 MPa (52.2 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 51% of stainless steel grades. Elongation at break is 28% and the elastic modulus is 200 GPa (29 Msi).
What is S41050 used for?
- fasteners
- cutlery-adjacent components
- general corrosion-resistant parts
Advantages
- High electrical conductivity — 3 % IACS, better than 95% of stainless steel grades
- Low embodied carbon — 3.2 kg CO₂/kg, better than 95% of stainless steel grades
- Easy to machine — 50/100, better than 90% of stainless steel grades
- Conducts heat well — 24.9 W/m·K (14.4 BTU/hr·ft·°F), better than 87% of stainless steel grades
Limitations
- Needs corrosion protection — 42/100, worse than 90% of stainless steel grades
S41050 properties
Typical room-temperature values for S41050-Annealed; bars are the position among stainless steel grades.
Physical3
S41050 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,480°C (2,696 °F).
Mechanical14
S41050 has a yield strength of 360 MPa (52.2 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 51% of stainless steel grades. Elongation at break is 28% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
S41050 is rated for continuous service to 600°C (1,112 °F). It conducts heat at 24.9 W/m·K (14.4 BTU/hr·ft·°F), better than 87% of stainless steel grades. Thermal expansion is 10.5 µm/m·K (5.83 µin/in·°F).
Electrical3
S41050 conducts electricity at 3 % IACS, better than 95% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 90% of stainless steel grades.
Sustainability4
Producing a kilogram of S41050 takes about 42 MJ of energy and emits 3.2 kg of CO₂ — less than 95% of stainless steel grades. Typical recycled content is 65%.
Manufacturability8
S41050's machinability is fair (50/100, better than 90% of stainless steel grades); weldability very good (70/100); formability good (65/100).
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. S41050 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with S41050
Is S41050 easy to machine?
Machines like annealed 410 (~55 % of AISI 1212): use rigid setups, sharp positive-rake carbide, moderate speed and heavy feed to avoid work-hardened glazing; stringy chips in the low-C annealed state.
Can S41050 be welded?
Readily welded by GTAW/GMAW with 410NiMo or austenitic 309L filler; low carbon limits HAZ hardening, but preheat 100–200 °C and post-weld temper 650–700 °C are advised on thick sections.
Can S41050 be formed, bent or molded?
Annealed sheet and tube cold-bend and expand well for tube-to-tubesheet joints; springback is higher than 304 and severe draws should be interstage-annealed.
S41050 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 |
|---|---|---|
| Clow carbon for toughness/weldability | ≤ 0.04 | 0.02 |
| Mn | ≤ 1 | 0.6 |
| Si | ≤ 1 | 0.4 |
| P | ≤ 0.05 | |
| S | ≤ 0.03 | |
| Cr | 10.5 – 12.5 | 11.5 |
| Niaustenite stabiliser, toughness | 0.6 – 1.1 | 0.85 |
| Nstrengthening / ferrite control | ≤ 0.1 | 0.04 |
| Fe | balance |
What surface finishes work on S41050?
Passivate per ASTM A967 (nitric or citric) or electropolish after pickling; takes a good mechanical polish but the 12 % Cr film needs paint or coating for outdoor/chloride exposure.
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 S41050 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.4030
How much does S41050 cost?
S41050 is a standard-cost stainless 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.
S41050 — frequently asked
What is S41050 used for?
S41050 is typically used for fasteners, cutlery-adjacent components and general corrosion-resistant parts. In short: EN 1.4030 cross-reference; cold-workable 410 family; heat-treatable to two strength levels.
What is the yield strength of S41050?
S41050 has a typical yield strength of 360 MPa (52.2 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 51% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is S41050 easy to machine?
Reasonably — machinability is rated fair (50/100, better than 90% of stainless steel grades). Machines like annealed 410 (~55 % of AISI 1212): use rigid setups, sharp positive-rake carbide, moderate speed and heavy feed to avoid work-hardened glazing; stringy chips in the low-C annealed state.
Can S41050 be welded?
Yes — weldability is rated very good (70/100). Readily welded by GTAW/GMAW with 410NiMo or austenitic 309L filler; low carbon limits HAZ hardening, but preheat 100–200 °C and post-weld temper 650–700 °C are advised on thick sections.
What surface finishes work on S41050?
Passivate per ASTM A967 (nitric or citric) or electropolish after pickling; takes a good mechanical polish but the 12 % Cr film needs paint or coating for outdoor/chloride exposure.
Can S41050 be formed, bent or molded?
Annealed sheet and tube cold-bend and expand well for tube-to-tubesheet joints; springback is higher than 304 and severe draws should be interstage-annealed.
What is the maximum service temperature of S41050?
S41050 is rated for continuous use to about 600°C (1,112 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between S41050 Annealed and S41050 QT-Low?
Annealed is the default condition — standard stocked condition for plate, sheet and welded/seamless tube; maximum ductility for forming and welding. QT-Low: pick for maximum hardness/wear of this low-carbon grade; hardness is capped by the ≤0.04 % C content. Yield strength is 360 MPa in Annealed versus 760 MPa in QT-Low.
How much does S41050 cost?
S41050 is a standard-cost stainless 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
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip — ASTM International (2023)
- ASTM A803/A803M — Welded Ferritic Stainless Steel Feedwater Heater Tubes — ASTM International (2021)
- ASTM A268/A268M — Seamless and Welded Ferritic/Martensitic Stainless Steel Tubing — ASTM International (2022)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- UNS S41050 / SAE-ASTM Unified Numbering System listing — SAE/ASTM (2022)
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.