Steel A182 F10
ASTM A182 F10 · UNS S33100
ASTM A182 F10 is a 25Cr-20Ni austenitic stainless forging grade (UNS S33100) in the Type 310 family, covered by the A182 standard for forged piping components.
Reference datasheet — A182 F10 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
A182 F10 tempers and conditions
A182 F10 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 A182 F10 flanges and fittings — maximum ductility, fully austenitic, carbides in solution. | 260 | 600 | 45 | 170 HB | — |
As-Forged / Hot Worked | Intermediate condition for re-forging or machining stock only; not an ASTM A182 delivery condition because carbides may remain precipitated. | 300 | 640 | 35 | 190 HB | 2.2 % IACS |
Solution Annealed + Cold Finished bar | Choose for small-diameter bar stock needing tight tolerance and higher yield strength for machined fittings; ductility and impact drop with cold work. | 450 | 720 | 28 | 19 HRC | 2.2 % IACS |
What is A182 F10?
ASTM A182 F10 is a 25Cr-20Ni austenitic stainless forging grade (UNS S33100) in the Type 310 family, covered by the A182 standard for forged piping components. It is chosen for scaling resistance and ductility at high temperature, with 260 MPa yield, 600 MPa tensile, 45 % elongation and about 170 HB in the solution-annealed condition, and a service ceiling near 1050 °C. Limits are gummy, strongly work-hardening machining at roughly 40 % of AISI 1212 rates and sensitisation if held in the 600–900 °C range, which degrades wet-corrosion performance. Type 310/310S forgings are the closest alternative. A182 F10 has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 94% of steel grades. It melts at 1,400°C (2,552 °F). A182 F10 has a yield strength of 260 MPa (37.7 ksi) and a tensile strength of 600 MPa (87 ksi) — weaker than 92% of steel grades. Elongation at break is 45% and the elastic modulus is 200 GPa (29 Msi).
What is A182 F10 used for?
- High-temperature flanges
- Furnace/exhaust piping fittings
- Heat-resistant valve bodies
Advantages
- Ductile — tolerates forming and impact — 45%, better than 100% of steel grades
- High service temperature — 1,050°C (1,922 °F), better than 100% of steel grades
- Good corrosion resistance — 70/100, better than 100% of steel grades
- Tough — resists crack growth — 170 MPa·√m (154.7 ksi·√in), better than 98% of steel grades
- Polishes to a fine finish — 70/100, better than 87% of steel grades
Limitations
- Poor heat conductor — 14.2 W/m·K (8.2 BTU/hr·ft·°F), worse than 99% of steel grades
- Low electrical conductivity — 2.2 % IACS, worse than 98% of steel grades
- High embodied carbon — 5.6 kg CO₂/kg, worse than 98% of steel grades
- Low strength — 260 MPa (37.7 ksi), worse than 92% of steel grades
- Difficult to machine — 32/100, worse than 87% of steel grades
A182 F10 properties
Typical room-temperature values for A182 F10-SA; bars are the position among steel grades.
Physical3
A182 F10 has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 94% of steel grades. It melts at 1,400°C (2,552 °F).
Mechanical15
A182 F10 has a yield strength of 260 MPa (37.7 ksi) and a tensile strength of 600 MPa (87 ksi) — weaker than 92% of steel grades. Elongation at break is 45% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
A182 F10 is rated for continuous service to 1,050°C (1,922 °F). It conducts heat at 14.2 W/m·K (8.2 BTU/hr·ft·°F), worse than 99% of steel grades. Thermal expansion is 15.9 µm/m·K (8.83 µin/in·°F).
Electrical3
A182 F10 conducts electricity at 2.2 % IACS, worse than 98% of steel grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), better than 100% of steel grades.
Sustainability4
Producing a kilogram of A182 F10 takes about 60 MJ of energy and emits 5.6 kg of CO₂ — more than 96% of steel grades. Typical recycled content is 60%.
Manufacturability8
A182 F10's machinability is poor (32/100, worse than 87% of steel grades); weldability good (60/100); 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 steel family
Yield strength against density for every steel grade FabDigit runs. A182 F10 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with A182 F10
Is A182 F10 easy to machine?
Gummy and strongly work-hardening — use rigid setups, positive-rake carbide, heavy positive feed, no dwell, and flood coolant; expect ~40 % of AISI 1212 rates.
Can A182 F10 be welded?
Weld with ER310/E310 filler, low heat input and no preheat; avoid 600–900 °C dwell and re-solution-treat if wet corrosive service is required.
Can A182 F10 be formed, bent or molded?
Forge at 1150–1200 °C finishing above 950 °C, then water quench from 1040–1150 °C; cold forming possible but springback and work hardening are high.
A182 F10 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 aids creep strength but promotes sensitisation | 0.1 – 0.2 | 0.15 |
| Mn | ≤ 2 | 1.2 |
| Si | ≤ 1 | 0.6 |
| P | ≤ 0.05 | — |
| S | ≤ 0.03 | — |
| Crscaling resistance | 24 – 26 | 25 |
| Niaustenite stabiliser | 19 – 22 | 20.5 |
| Fe | balance | — |
What surface finishes work on A182 F10?
Pickle and passivate per ASTM A967 or electropolish after hot work to restore the chromium oxide film; not anodisable.
Surface treatments FabDigit runs on 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).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel A182 F10 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- S33100
How much does A182 F10 cost?
A182 F10 is a high-cost 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.
A182 F10 — frequently asked
What is A182 F10 used for?
A182 F10 is typically used for high-temperature flanges, furnace/exhaust piping fittings and heat-resistant valve bodies. In short: 1050 °C scaling resistance; 310-type forging grade; high-ductility austenitic.
What is the yield strength of A182 F10?
A182 F10 has a typical yield strength of 260 MPa (37.7 ksi) and a tensile strength of 600 MPa (87 ksi) — weaker than 92% of steel grades. Strength varies by condition: see the 3 listed tempers.
Is A182 F10 easy to machine?
Not especially — machinability is rated poor (32/100, worse than 87% of steel grades). Gummy and strongly work-hardening — use rigid setups, positive-rake carbide, heavy positive feed, no dwell, and flood coolant; expect ~40 % of AISI 1212 rates.
Can A182 F10 be welded?
Yes — weldability is rated good (60/100). Weld with ER310/E310 filler, low heat input and no preheat; avoid 600–900 °C dwell and re-solution-treat if wet corrosive service is required.
What surface finishes work on A182 F10?
Pickle and passivate per ASTM A967 or electropolish after hot work to restore the chromium oxide film; not anodisable.
Can A182 F10 be formed, bent or molded?
Forge at 1150–1200 °C finishing above 950 °C, then water quench from 1040–1150 °C; cold forming possible but springback and work hardening are high.
What is the maximum service temperature of A182 F10?
A182 F10 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 A182 F10-SA and A182 F10 SA-CF?
SA is the default condition — standard supply condition for A182 F10 flanges and fittings — maximum ductility, fully austenitic, carbides in solution. SA-CF: choose for small-diameter bar stock needing tight tolerance and higher yield strength for machined fittings; ductility and impact drop with cold work. Yield strength is 260 MPa in SA versus 450 MPa in SA-CF.
How much does A182 F10 cost?
A182 F10 is a high-cost 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
- ASTM A182/A182M Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service — ASTM International (2022)
- ASME BPVC Section II Part D — Properties (Metric) — ASME (2023)
- ASM Handbook Vol. 1: Properties and Selection — Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol. 19: Fatigue and Fracture — ASM International (1996)
- SAE/ASTM Unified Numbering System (UNS) — S33100 — SAE International / ASTM (2017)
- High-temperature austenitic stainless 310/310S technical data — Outokumpu (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.