Stainless Steel 1.4724
EN 1.4724
1.4724 (X10CrAlSi13) is a 13% Cr Fe-Cr-Al-Si ferritic heat-resisting steel whose higher chromium gives better oxidation resistance than the 7% Cr grade 1.4713, with a stated service limit of 850 °C.
Reference datasheet — 1.4724 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
1.4724 tempers and conditions
1.4724 is supplied in 3 conditions, soft to hard. +A 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 |
|---|---|---|---|---|---|---|
Stress relieved | Post-fabrication treatment to restore ductility and relieve welding/forming stresses before service. | 290 | 545 | 21 | 172 HB | 2.5 % IACS |
+ADefault Annealed | Standard supply condition for plate, bar and forgings destined for high-temperature service. | 300 | 560 | 20 | 180 HB | 2.5 % IACS |
Cold drawn | Cold drawn condition for close tolerances and higher room-temperature strength; strength is lost after high-temperature exposure. | 550 | 700 | 10 | 220 HB | 2.5 % IACS |
Supply forms, finishes and certifications
Ways 1.4724 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
TUBE-A | Tube, welded or seamless, annealed | Supply form |
+A+P | Hot rolled bar, annealed, peeled/turned | Surface finish |
1D | Hot rolled, annealed, pickled plate/sheet | Surface finish |
2B | Cold rolled, annealed, pickled, skin passed sheet | Surface finish |
2D | Cold rolled, annealed, pickled (dull) sheet | Surface finish |
What is 1.4724?
1.4724 (X10CrAlSi13) is a 13% Cr Fe-Cr-Al-Si ferritic heat-resisting steel whose higher chromium gives better oxidation resistance than the 7% Cr grade 1.4713, with a stated service limit of 850 °C. It is used for exhaust and heater hardware where scaling resistance matters more than strength, and is available annealed (+A, +A+P), as 1D, 2B and 2D sheet, cold-drawn bar (+C), annealed tube and stress-relieved forms. Typical values are 300 MPa yield, 560 MPa tensile, 20% elongation and 180 HB. Formability is low (score 50), welds need preheat and post-weld annealing, and aqueous corrosion resistance is modest; 1.4736 serves above 850 °C. 1.4724 has a density of 7.6 g/cm³ (0.275 lb/in³), lighter than 98% of stainless steel grades. It melts at 1,450°C (2,642 °F). 1.4724 has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 560 MPa (81.2 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 20% and the elastic modulus is 220 GPa (31.9 Msi).
What is 1.4724 used for?
- exhaust manifolds
- heater elements
- furnace components
Advantages
- Low embodied carbon — 3.2 kg CO₂/kg, better than 95% of stainless steel grades
- Easy to machine — 45/100, better than 84% of stainless steel grades
- High service temperature — 850°C (1,562 °F), better than 80% of stainless steel grades
- Conducts heat well — 23 W/m·K (13.3 BTU/hr·ft·°F), better than 78% of stainless steel grades
Limitations
- Low fracture toughness — 50 MPa·√m (45.5 ksi·√in), worse than 92% of stainless steel grades
- Needs corrosion protection — 42/100, worse than 90% of stainless steel grades
- Hard to polish — 55/100, worse than 89% of stainless steel grades
- Limited ductility — 20%, worse than 79% of stainless steel grades
- Difficult to weld — 45/100, worse than 79% of stainless steel grades
1.4724 properties
Typical room-temperature values for 1.4724-+A; bars are the position among stainless steel grades.
Physical3
1.4724 has a density of 7.6 g/cm³ (0.275 lb/in³), lighter than 98% of stainless steel grades. It melts at 1,450°C (2,642 °F).
Mechanical16
1.4724 has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 560 MPa (81.2 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 20% and the elastic modulus is 220 GPa (31.9 Msi).
Thermal6
1.4724 is rated for continuous service to 850°C (1,562 °F). It conducts heat at 23 W/m·K (13.3 BTU/hr·ft·°F), better than 78% of stainless steel grades. Thermal expansion is 10.5 µm/m·K (5.83 µin/in·°F).
Electrical3
1.4724 conducts electricity at 2.5 % IACS, better than 75% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 90% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4724 takes about 42 MJ of energy and emits 3.2 kg of CO₂ — less than 95% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
1.4724's machinability is fair (45/100, better than 84% of stainless steel grades); weldability fair (45/100); 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 stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. 1.4724 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4724
Is 1.4724 easy to machine?
Machines like a soft ferritic stainless — rigid setups, sharp positive-rake carbide, moderate speeds and heavy feeds to avoid work hardening and the gummy Al-bearing chip.
Can 1.4724 be welded?
Weldable by TIG/MIG/SMAW with preheat 150–300 °C, low heat input and post-weld anneal ~750–800 °C; use matching Cr-Al filler or 309/310-type austenitic consumables where ductile welds are required, as the HAZ coarsens and embrittles.
Can 1.4724 be formed, bent or molded?
Cold forms with generous bend radii (≥2t) at moderate ductility; warm forming 150–300 °C helps for severe bends, hot working range roughly 1100–800 °C with slow cooling.
1.4724 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 |
|---|---|---|
| CEN 10095 | ≤ 0.12 | 0.09 |
| Si | 0.7 – 1.4 | 1 |
| Mn | ≤ 1 | 0.5 |
| P | ≤ 0.04 | 0.03 |
| S | ≤ 0.02 | 0.01 |
| Cr | 12 – 14 | 13 |
| Alforms protective Al-rich oxide | 0.7 – 1.2 | 1 |
| Fe | balance |
What surface finishes work on 1.4724?
Not anodizable; supplied pickled/annealed or ground, and normally used with its own protective high-temperature oxide, aluminised or high-temperature silicone/ceramic paint for cosmetic parts.
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 1.4724 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X10CrAlSi13
How much does 1.4724 cost?
1.4724 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.
1.4724 — frequently asked
What is 1.4724 used for?
1.4724 is typically used for exhaust manifolds, heater elements and furnace components. In short: mid-cost 850 °C ferritic; higher Cr than 1.4713; needs post-weld anneal.
What is the yield strength of 1.4724?
1.4724 has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 560 MPa (81.2 ksi) — weaker than 68% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 1.4724 easy to machine?
Reasonably — machinability is rated fair (45/100, better than 84% of stainless steel grades). Machines like a soft ferritic stainless — rigid setups, sharp positive-rake carbide, moderate speeds and heavy feeds to avoid work hardening and the gummy Al-bearing chip.
Can 1.4724 be welded?
With care — weldability is rated fair (45/100). Weldable by TIG/MIG/SMAW with preheat 150–300 °C, low heat input and post-weld anneal ~750–800 °C; use matching Cr-Al filler or 309/310-type austenitic consumables where ductile welds are required, as the HAZ coarsens and embrittles.
What surface finishes work on 1.4724?
Not anodizable; supplied pickled/annealed or ground, and normally used with its own protective high-temperature oxide, aluminised or high-temperature silicone/ceramic paint for cosmetic parts.
Can 1.4724 be formed, bent or molded?
Cold forms with generous bend radii (≥2t) at moderate ductility; warm forming 150–300 °C helps for severe bends, hot working range roughly 1100–800 °C with slow cooling.
What is the maximum service temperature of 1.4724?
1.4724 is rated for continuous use to about 850°C (1,562 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1.4724 +A and 1.4724-SR?
+A is the default condition — standard supply condition for plate, bar and forgings destined for high-temperature service. SR: post-fabrication treatment to restore ductility and relieve welding/forming stresses before service. Yield strength is 300 MPa in +A versus 290 MPa in SR.
How much does 1.4724 cost?
1.4724 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 10095 — Heat resisting steels and nickel alloys — CEN (2018)
- EN 10088-1 — Stainless steels: list of stainless steels — CEN (2014)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
- Heat-resisting ferritic stainless steel datasheets (X10CrAlSi7/13/18/25) — European long-product and strip mills (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.