Stainless Steel 1.4823
EN 1.4823 · UNS J93403 · ASTM A297 Grade HD
High-chromium, high-carbon heat-resistant cast steel used for components exposed to elevated temperatures and cyclic thermal loading where scaling resistance matters more than corrosion in wet chloride media.
Reference datasheet — 1.4823 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 AC condition
1.4823 tempers and conditions
1.4823 is supplied in 3 conditions, soft to hard. AC 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 |
|---|---|---|---|---|---|---|
Solution annealed | Occasionally specified to homogenise the carbide network and restore some ductility before heavy machining or on castings that saw low-temperature ordering embrittlement. | 265 | 490 | 9 | 190 HB | 1.9 % IACS |
Stress relieved | Pick when thick, complex castings must be machined to tight tolerance or welded, to relieve solidification stresses without changing the carbide structure. | 275 | 505 | 7 | 195 HB | 1.9 % IACS |
ACDefault Spheroidize annealed | Default supply condition for furnace hardware — heat-resistant castings are normally used as-cast because service temperature exceeds any heat-treatment benefit. | 285 | 520 | 6 | 200 HB | 1.9 % IACS |
What is 1.4823?
High-chromium, high-carbon heat-resistant cast steel used for components exposed to elevated temperatures and cyclic thermal loading where scaling resistance matters more than corrosion in wet chloride media. 1.4823 has a density of 7.6 g/cm³ (0.275 lb/in³), lighter than 98% of stainless steel grades. It melts at 1,370°C (2,498 °F). 1.4823 has a yield strength of 285 MPa (41.3 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 74% of stainless steel grades. Elongation at break is 6% and the elastic modulus is 195 GPa (28.3 Msi).
What is 1.4823 used for?
- furnace grates
- heat-treatment fixtures
- kiln components
- exhaust and combustion system parts
Advantages
- High service temperature — 1,050°C (1,922 °F), better than 91% of stainless steel grades
- Low embodied carbon — 3.6 kg CO₂/kg, better than 83% of stainless steel grades
Limitations
- Limited ductility — 6%, worse than 99% of stainless steel grades
- Limited formability — 5/100, worse than 99% of stainless steel grades
- Hard to polish — 40/100, worse than 99% of stainless steel grades
- Low fracture toughness — 35 MPa·√m (31.9 ksi·√in), worse than 98% of stainless steel grades
- Difficult to machine — 22/100, worse than 95% of stainless steel grades
1.4823 properties
Typical room-temperature values for 1.4823-AC; bars are the position among stainless steel grades.
Physical3
1.4823 has a density of 7.6 g/cm³ (0.275 lb/in³), lighter than 98% of stainless steel grades. It melts at 1,370°C (2,498 °F).
Mechanical16
1.4823 has a yield strength of 285 MPa (41.3 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 74% of stainless steel grades. Elongation at break is 6% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
1.4823 is rated for continuous service to 1,050°C (1,922 °F). It conducts heat at 15.5 W/m·K (8.96 BTU/hr·ft·°F), better than 53% of stainless steel grades. Thermal expansion is 11.5 µm/m·K (6.39 µin/in·°F).
Electrical3
1.4823 conducts electricity at 1.9 % IACS, worse than 84% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (52/100), worse than 76% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4823 takes about 50 MJ of energy and emits 3.6 kg of CO₂ — less than 80% of stainless steel grades. Typical recycled content is 75%.
Manufacturability6
1.4823's machinability is poor (22/100, worse than 95% of stainless steel grades); weldability poor (25/100); formability not recommended (5/100).
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. 1.4823 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4823
Is 1.4823 easy to machine?
Machine with rigid setups, negative-rake carbide or ceramic inserts, low speed and heavy feed; the interdendritic carbide network is abrasive and work-hardens, so grinding is often preferred for finish surfaces.
Can 1.4823 be welded?
Treat as repair welding only: preheat 200–300 °C, use matching high-Cr or 25-20 (ER310) filler, minimise heat input and slow-cool to avoid cracking; expect reduced ductility in the HAZ.
Can 1.4823 be formed, bent or molded?
Supplied exclusively as sand, shell or investment castings — not cold formable; design generous fillets, uniform wall thickness and adequate risering to avoid hot tears in the high-carbon alloy.
1.4823 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 |
|---|---|---|
| Chigh carbon gives the carbide network and creep strength | 0.3 – 0.5 | 0.4 |
| Siboosts scaling resistance; some standards allow up to 2.5 % | 0.5 – 2 | 1.5 |
| Mn | ≤ 1 | 0.7 |
| Pimpurity limit | ≤ 0.04 | |
| Simpurity limit | ≤ 0.03 | |
| Crprimary oxidation/sulphidation resistance | 25 – 28 | 27 |
| Nipartial austenite stabiliser, keeps cost low | 3.5 – 5.5 | 4.5 |
| Fe | balance |
What surface finishes work on 1.4823?
Shot blast or pickle to remove casting scale; surfaces develop a tenacious protective Cr-rich oxide in service, so paint or plating is unnecessary and generally not applied.
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 1.4823 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- J93403
- ASTM
- A297 Grade HD
- EN / DIN / Werkstoff-Nr.
- GX40CrNiSi27-4
How much does 1.4823 cost?
1.4823 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.
1.4823 — frequently asked
What is 1.4823 used for?
1.4823 is typically used for furnace grates, heat-treatment fixtures, kiln components and exhaust and combustion system parts. In short: cast heat-resistant to 1050 °C; high-Cr scaling resistance; castings only, low ductility.
What is the yield strength of 1.4823?
1.4823 has a typical yield strength of 285 MPa (41.3 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 74% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 1.4823 easy to machine?
Not especially — machinability is rated poor (22/100, worse than 95% of stainless steel grades). Machine with rigid setups, negative-rake carbide or ceramic inserts, low speed and heavy feed; the interdendritic carbide network is abrasive and work-hardens, so grinding is often preferred for finish surfaces.
Can 1.4823 be welded?
Not readily — weldability is rated poor (25/100). Treat as repair welding only: preheat 200–300 °C, use matching high-Cr or 25-20 (ER310) filler, minimise heat input and slow-cool to avoid cracking; expect reduced ductility in the HAZ.
What surface finishes work on 1.4823?
Shot blast or pickle to remove casting scale; surfaces develop a tenacious protective Cr-rich oxide in service, so paint or plating is unnecessary and generally not applied.
Can 1.4823 be formed, bent or molded?
Supplied exclusively as sand, shell or investment castings — not cold formable; design generous fillets, uniform wall thickness and adequate risering to avoid hot tears in the high-carbon alloy.
What is the maximum service temperature of 1.4823?
1.4823 is rated for continuous use to about 1,050°C (1,922 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1.4823-AC and 1.4823-A?
AC is the default condition — default supply condition for furnace hardware — heat-resistant castings are normally used as-cast because service temperature exceeds any heat-treatment benefit. A: occasionally specified to homogenise the carbide network and restore some ductility before heavy machining or on castings that saw low-temperature ordering embrittlement. Yield strength is 285 MPa in AC versus 265 MPa in A.
How much does 1.4823 cost?
1.4823 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 10295 — Heat resistant steel castings — CEN (2002)
- ASTM A297/A297M — Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application — ASTM International (2019)
- GB/T 8492 — Heat-resistant steel and alloy castings for general applications — SAC (2014)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys (Heat-Resistant Castings) — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials (High-Temperature Corrosion) — ASM International (2005)
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.