Stainless Steel 353 MA-SA (Solution annealed)
Heat-treated state · default condition
UNS S35315 · EN 1.4854, X10NiCrSiCe35-19
Standard supply condition for all product forms; maximum ductility and best structural stability before high-temperature service.
Values for the SA condition
Other 353 MA tempers and conditions
353 MA is listed in 3 conditions; see the grade overview at 353 MA.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SADefaultThis page 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 |
What is 353 MA-SA?
353 MA-SA is 353 MA heat treated to SA — standard supply condition for all product forms; maximum ductility and best structural stability before high-temperature service. 353 MA-SA 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). 353 MA-SA 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).
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-SA properties
Typical room-temperature values for 353 MA-SA; 22 are specific to this condition. Other listed values are 353 MA reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
353 MA-SA 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-SA 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-SA 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-SA 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-SA 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-SA'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. Confirm any required mill or lot documentation when quoting.
Working with 353 MA-SA
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.
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.
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 | — |
353 MA-SA — frequently asked
What is 353 MA-SA used for?
353 MA-SA 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-SA?
353 MA-SA 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-SA 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-SA 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-SA?
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-SA 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-SA?
353 MA-SA 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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.