Nickel Alloy N06250 CD-SA
Supply condition
UNS N06250
Preferred for seamless tubing and precision bar that must keep full corrosion resistance after cold sizing.
Values for the CD-SA condition
Other N06250 tempers and conditions
N06250 is listed in 4 conditions; see the grade overview at N06250.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
CD-SAThis page Cold Drawn then Solution Annealed (bright annealed tube/bar) | Preferred for seamless tubing and precision bar that must keep full corrosion resistance after cold sizing. | 355 | 750 | 55 | 178 HB | 1.4 % IACS |
SADefault Solution Annealed | Standard supply condition for plate, sheet, rod and pipe — maximum corrosion resistance and ductility. | 360 | 760 | 58 | 9 HRC | 1.4 % IACS |
As-welded deposit | Property set for all-weld-metal / weld overlay; normally used without PWHT provided heat input and interpass temperature are controlled. | 450 | 740 | 40 | 195 HB | 1.4 % IACS |
Cold drawn | Pick when higher strength and tighter tolerance/straightness are needed and the final part is not exposed to severe crevice service without a subsequent anneal. | 700 | 950 | 25 | 30 HRC | 1.4 % IACS |
What is N06250 CD-SA?
N06250 CD-SA is N06250 supplied in the CD-SA condition — preferred for seamless tubing and precision bar that must keep full corrosion resistance after cold sizing. N06250 CD-SA has a yield strength of 355 MPa (51.5 ksi) and a tensile strength of 750 MPa (109 ksi) — weaker than 59% of nickel alloy grades. Elongation at break is 55% and the elastic modulus is 206 GPa (29.9 Msi). N06250 CD-SA has a density of 8.7 g/cm³ (0.314 lb/in³), heavier than 75% of nickel alloy grades. It melts at 1,325°C (2,417 °F). SA is the default condition FabDigit quotes; CD-SA is available on request or by drawing note.
Advantages
- Ductile — tolerates forming and impact — 55%, better than 93% of nickel alloy grades
- Good corrosion resistance — 92/100, better than 91% of nickel alloy grades
- Readily welded — 85/100, better than 83% of nickel alloy grades
N06250 CD-SA properties
Typical room-temperature values for N06250 CD-SA; 21 are specific to this condition. Other listed values are N06250 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
N06250 CD-SA has a density of 8.7 g/cm³ (0.314 lb/in³), heavier than 75% of nickel alloy grades. It melts at 1,325°C (2,417 °F).
Mechanical16
N06250 CD-SA has a yield strength of 355 MPa (51.5 ksi) and a tensile strength of 750 MPa (109 ksi) — weaker than 59% of nickel alloy grades. Elongation at break is 55% and the elastic modulus is 206 GPa (29.9 Msi).
Thermal5
N06250 CD-SA is rated for continuous service to 650°C (1,202 °F). It conducts heat at 10 W/m·K (5.78 BTU/hr·ft·°F), worse than 88% of nickel alloy grades. Thermal expansion is 11.6 µm/m·K (6.44 µin/in·°F).
Electrical3
N06250 CD-SA conducts electricity at 1.4 % IACS, worse than 65% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of nickel alloy grades.
Sustainability4
Producing a kilogram of N06250 CD-SA takes about 180 MJ of energy and emits 14 kg of CO₂ — more than 69% of nickel alloy grades. Typical recycled content is 45%.
Manufacturability8
N06250 CD-SA's machinability is poor (18/100, worse than 61% of nickel alloy grades); weldability excellent (85/100); formability good (68/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with N06250 CD-SA
Is N06250 easy to machine?
Slow, rigid and positive: low surface speed, heavy feed to cut under the work-hardened skin, sharp carbide or ceramic tooling, flood coolant, avoid dwelling.
Can N06250 be welded?
GTAW/GMAW/SMAW with matching Ni-Cr-Mo filler; keep heat input and interpass temperature low (<100–150 °C), no preheat, no PWHT normally required, clean to bare metal before welding.
Can N06250 be formed, bent or molded?
Very ductile but work-hardens rapidly — form cold with generous radii and extra power, interstage anneal at ~1120 °C with rapid quench for severe draws; hot work 900–1200 °C.
What surface finishes work on N06250?
Not anodizable; descale by grit blast plus nitric-hydrofluoric pickling, then passivate or electropolish for maximum crevice-corrosion performance.
N06250 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 |
|---|---|---|
| Crnominal for the Ni-Cr-Mo C-family; confirm registered limits for this UNS number | 19 – 23 | 21 |
| Mohigh-Mo content giving reducing-acid and crevice resistance; confirm registered limits | 15 – 19 | 17 |
| Feresidual | ≤ 3 | 1.5 |
| Clow-carbon melt practice typical of this family | ≤ 0.02 | 0.01 |
| Si | ≤ 0.08 | 0.04 |
| Mn | ≤ 0.5 | 0.2 |
| P | ≤ 0.03 | — |
| S | ≤ 0.01 | — |
| Nibalance, approx. 55–62 % | balance | — |
N06250 CD-SA — frequently asked
What is N06250 CD-SA used for?
N06250 CD-SA is typically used for chemical processing vessels, scrubber systems, acid piping and industrial heat exchangers. In short: high-Mo severe acid alloy; pitting and crevice resistant; weldable but hard to machine.
What is the yield strength of N06250 CD-SA?
N06250 CD-SA has a typical yield strength of 355 MPa (51.5 ksi) and a tensile strength of 750 MPa (109 ksi) — weaker than 59% of nickel alloy grades. Strength varies by condition: see the 4 listed tempers.
Is N06250 CD-SA easy to machine?
Not especially — machinability is rated poor (18/100, worse than 61% of nickel alloy grades). Slow, rigid and positive: low surface speed, heavy feed to cut under the work-hardened skin, sharp carbide or ceramic tooling, flood coolant, avoid dwelling.
Can N06250 CD-SA be welded?
Yes — weldability is rated excellent (85/100). GTAW/GMAW/SMAW with matching Ni-Cr-Mo filler; keep heat input and interpass temperature low (<100–150 °C), no preheat, no PWHT normally required, clean to bare metal before welding.
What surface finishes work on N06250 CD-SA?
Not anodizable; descale by grit blast plus nitric-hydrofluoric pickling, then passivate or electropolish for maximum crevice-corrosion performance.
Can N06250 CD-SA be formed, bent or molded?
Very ductile but work-hardens rapidly — form cold with generous radii and extra power, interstage anneal at ~1120 °C with rapid quench for severe draws; hot work 900–1200 °C.
What is the maximum service temperature of N06250 CD-SA?
N06250 CD-SA is rated for continuous use to about 650°C (1,202 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between N06250-SA and N06250-CD?
SA is the default condition — standard supply condition for plate, sheet, rod and pipe — maximum corrosion resistance and ductility. CD: pick when higher strength and tighter tolerance/straightness are needed and the final part is not exposed to severe crevice service without a subsequent anneal. Yield strength is 360 MPa in SA versus 700 MPa in CD.
Sources
- ASTM B575 — Ni-Cr-Mo Alloy Plate, Sheet and Strip — ASTM International (2022)
- ASTM B574 / B622 / B619 — Ni-Cr-Mo Alloy Rod, Seamless Pipe and Welded Pipe — ASTM International (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Specialty Handbook: Nickel, Cobalt and Their Alloys — ASM International (2000)
- Ni-Cr-Mo corrosion alloy datasheets (Alloy 22 / C-276 / C-2000 class) used as property analogues — Haynes International / VDM Metals (2023)
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.