Stainless Steel 353 MA
UNS S35315 · EN 1.4854, X10NiCrSiCe35-19
Outokumpu-developed superaustenitic heat-resisting stainless steel with 35% Ni, 25% Cr, plus silicon and cerium additions, providing outstanding resistance to oxidation, carburization and creep up to about 1150C.
Reference datasheet — 353 MA 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 SA condition
353 MA tempers and conditions
353 MA is supplied in 3 conditions, soft to hard. SA 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 |
|---|---|---|---|---|---|---|
SADefault Solution annealed | Standard supply condition for all product forms; maximum ductility and best structural stability before high-temperature service. | 350 | 730 | 45 | 180 HB | 1.7 % IACS |
As-welded deposit | Typical all-weld-metal values for matching 353 MA electrodes/wire used on fabricated furnace assemblies. | 400 | 640 | 30 | 195 HB | 1.7 % IACS |
Cold drawn | Cold drawn small bar and wire where tighter tolerance and higher room-temperature strength are wanted; anneal before high-temperature service if maximum creep life is needed. | 620 | 880 | 22 | 24 HRC | 1.7 % IACS |
Supply forms, finishes and certifications
Ways 353 MA is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
SA-1D-PLATE | SA 1D | Supply form |
SA-2B-SHEET | SA 2B | Supply form |
SA-BAR | SA bar | Supply form |
SA-TUBE | SA tube | Supply form |
What is 353 MA?
Outokumpu-developed superaustenitic heat-resisting stainless steel with 35% Ni, 25% Cr, plus silicon and cerium additions, providing outstanding resistance to oxidation, carburization and creep up to about 1150C. 353 MA has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,330°C (2,426 °F). 353 MA has a yield strength of 350 MPa (50.8 ksi) and a tensile strength of 730 MPa (106 ksi) — weaker than 52% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 196 GPa (28.4 Msi).
What is 353 MA used for?
- kiln furniture
- furnace muffles
- radiant tubes
- heat-treatment baskets
- high-temperature fasteners
Advantages
- High service temperature — 1,150°C (2,102 °F), better than 99% of stainless steel grades
- Ductile — tolerates forming and impact — 45%, better than 76% of stainless steel grades
Limitations
- Poor heat conductor — 12 W/m·K (6.93 BTU/hr·ft·°F), worse than 93% of stainless steel grades
- Low electrical conductivity — 1.7 % IACS, worse than 93% of stainless steel grades
- High embodied carbon — 6.2 kg CO₂/kg, worse than 90% of stainless steel grades
- Hard to polish — 60/100, worse than 80% of stainless steel grades
353 MA properties
Typical room-temperature values for 353 MA-SA; bars are the position among stainless steel grades.
Physical3
353 MA has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,330°C (2,426 °F).
Mechanical16
353 MA has a yield strength of 350 MPa (50.8 ksi) and a tensile strength of 730 MPa (106 ksi) — weaker than 52% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 196 GPa (28.4 Msi).
Thermal6
353 MA is rated for continuous service to 1,150°C (2,102 °F). It conducts heat at 12 W/m·K (6.93 BTU/hr·ft·°F), worse than 93% of stainless steel grades. Thermal expansion is 15.5 µm/m·K (8.61 µin/in·°F).
Electrical3
353 MA conducts electricity at 1.7 % IACS, worse than 93% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 71% of stainless steel grades.
Sustainability4
Producing a kilogram of 353 MA takes about 85 MJ of energy and emits 6.2 kg of CO₂ — more than 92% of stainless steel grades. Typical recycled content is 40%.
Manufacturability7
353 MA's machinability is poor (28/100, worse than 79% of stainless steel grades); weldability good (65/100); formability good (55/100).
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. 353 MA is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 353 MA
Is 353 MA easy to machine?
Machine like a high-Ni superaustenitic: rigid setup, positive-rake sharp carbide, low speed (~15–25 m/min HSS, 40–70 m/min carbide), heavy feed to cut under the work-hardened layer, and flood emulsion coolant.
Can 353 MA be welded?
Weld with GTAW/GMAW/SMAW using matching 353 MA filler (or Ni-base 617/82 for dissimilar joints); no preheat, keep interpass below ~150 °C and heat input low to limit hot cracking and ferrite-free weld grain growth.
Can 353 MA be formed, bent or molded?
Cold forms well but work-hardens fast — allow 40–60% more press force than 304 and interstage anneal at 1050–1150 °C with rapid cooling; hot work at 1150–1200 °C, never finish below 950 °C.
353 MA 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 |
|---|---|---|
| Ccarbon kept high enough for creep strength | 0.04 – 0.08 | 0.06 |
| Sikey for oxidation/carburization resistance | 1.2 – 2 | 1.6 |
| Mn | ≤ 2 | 1.2 |
| P | ≤ 0.04 | |
| S | ≤ 0.02 | |
| Cr | 24 – 26 | 25 |
| Ni | 34 – 36 | 35 |
| Nsolid-solution and creep strengthening | 0.12 – 0.2 | 0.16 |
| Cerare-earth addition improving oxide scale adhesion | 0.03 – 0.08 | 0.05 |
| Fe | balance |
What surface finishes work on 353 MA?
Pickle and passivate after hot work or welding to restore the Cr/Si oxide; not anodizable — use electropolish or mechanical polish, and avoid iron contamination from carbon-steel tooling.
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 353 MA in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S35315
- EN / DIN / Werkstoff-Nr.
- 1.4854X10NiCrSiCe35-19
How much does 353 MA cost?
353 MA is a high-cost stainless steel ($$$$), pricier than about 78% 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.
353 MA — frequently asked
What is 353 MA used for?
353 MA is typically used for kiln furniture, furnace muffles, radiant tubes, heat-treatment baskets and high-temperature fasteners. In short: service to 1150 °C; cerium-stabilized oxide scale; hotter than 253 MA.
What is the yield strength of 353 MA?
353 MA has a typical yield strength of 350 MPa (50.8 ksi) and a tensile strength of 730 MPa (106 ksi) — weaker than 52% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 353 MA easy to machine?
Not especially — machinability is rated poor (28/100, worse than 79% of stainless steel grades). Machine like a high-Ni superaustenitic: rigid setup, positive-rake sharp carbide, low speed (~15–25 m/min HSS, 40–70 m/min carbide), heavy feed to cut under the work-hardened layer, and flood emulsion coolant.
Can 353 MA be welded?
Yes — weldability is rated good (65/100). Weld with GTAW/GMAW/SMAW using matching 353 MA filler (or Ni-base 617/82 for dissimilar joints); no preheat, keep interpass below ~150 °C and heat input low to limit hot cracking and ferrite-free weld grain growth.
What surface finishes work on 353 MA?
Pickle and passivate after hot work or welding to restore the Cr/Si oxide; not anodizable — use electropolish or mechanical polish, and avoid iron contamination from carbon-steel tooling.
Can 353 MA be formed, bent or molded?
Cold forms well but work-hardens fast — allow 40–60% more press force than 304 and interstage anneal at 1050–1150 °C with rapid cooling; hot work at 1150–1200 °C, never finish below 950 °C.
What is the maximum service temperature of 353 MA?
353 MA is rated for continuous use to about 1,150°C (2,102 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 353 MA-SA and 353 MA-CD?
SA is the default condition — standard supply condition for all product forms; maximum ductility and best structural stability before high-temperature service. CD: cold drawn small bar and wire where tighter tolerance and higher room-temperature strength are wanted; anneal before high-temperature service if maximum creep life is needed. Yield strength is 350 MPa in SA versus 620 MPa in CD.
How much does 353 MA cost?
353 MA is a high-cost stainless steel ($$$$), pricier than about 78% 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
- Outokumpu 353 MA (EN 1.4854 / UNS S35315) data sheet — Outokumpu (2023)
- EN 10095 — Heat resisting steels and nickel alloys — CEN (2018)
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip — ASTM (2023)
- ASTM A213/A249 — Heat-resisting alloy tubing — ASTM (2022)
- 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.