Nickel 200-SPR (Spring temper wire)
Supply condition
UNS N02200 · ASTM B160/B161/B162, B160 · EN 2.4066 · GB N6 · also CP Ni
Highest-strength wire condition for springs, woven mesh and fasteners in caustic or high-purity chemical service.
Values for the SPR condition
Other Nickel 200 tempers and conditions
Nickel 200 is listed in 7 conditions; see the grade overview at Nickel 200.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Standard stocked condition for plate, sheet, tube and forming blanks — maximum ductility and best corrosion behaviour. | 148 | 462 | 47 | 109 HB | 70 W/m·K |
Hot rolled | Economical condition for thicker bar, forgings and plate where full anneal ductility is not required. | 240 | 520 | 40 | 130 HB | — |
Cold drawn | Choose for straight, close-tolerance bar/tube with higher yield strength and better chip breaking than annealed. | 500 | 620 | 22 | 180 HB | — |
Cold worked | Commercially pure nickel 200 in the as-cold-worked (rolled/drawn, unannealed) condition — strength and hardness raised by strain hardening at the cost of ductility and formability. | 525 | 620 | 15 | 200 HB | 16.5 % IACS |
Stress relieved | Cold-drawn bar given a low-temperature stress relief for dimensional stability and reduced SCC risk in caustic service. | 560 | 660 | 18 | 11 HRC | 17 % IACS |
Hardened | Full-hard strip for stamped contacts, diaphragms and shims needing stiffness and hardness rather than deep drawing. | 660 | 720 | 4 | 21 HRC | — |
SPRThis page Spring temper wire | Highest-strength wire condition for springs, woven mesh and fasteners in caustic or high-purity chemical service. | 800 | 900 | 3 | 27 HRC | 17 % IACS |
What is Nickel 200-SPR?
Nickel 200-SPR is Nickel 200 supplied in the SPR condition — highest-strength wire condition for springs, woven mesh and fasteners in caustic or high-purity chemical service. Nickel 200-SPR has a yield strength of 800 MPa (116 ksi) and a tensile strength of 900 MPa (131 ksi) — stronger than 83% of nickel alloy grades. Elongation at break is 3% and the elastic modulus is 207 GPa (30 Msi). Nickel 200-SPR has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,435°C (2,615 °F). O is the default condition FabDigit quotes; SPR is available on request or by drawing note.
Advantages
- Easy to machine — 45/100, better than 99% of nickel alloy grades
- Conducts heat well — 67 W/m·K (38.7 BTU/hr·ft·°F), better than 97% of nickel alloy grades
- High electrical conductivity — 17 % IACS, better than 97% of nickel alloy grades
- Polishes to a fine finish — 80/100, better than 97% of nickel alloy grades
- High strength — 800 MPa (116 ksi), better than 83% of nickel alloy grades
Limitations
- Limited service temperature — 230°C (446 °F), worse than 99% of nickel alloy grades
- Limited ductility — 3%, worse than 93% of nickel alloy grades
- Limited formability — 20/100, worse than 75% of nickel alloy grades
Nickel 200-SPR properties
Typical room-temperature values for Nickel 200-SPR; 19 are specific to this condition. Other listed values are Nickel 200 reference data and may not represent this condition. Bars are the position among nickel alloy grades.
Physical3
Nickel 200-SPR has a density of 8.89 g/cm³ (0.321 lb/in³), heavier than 88% of nickel alloy grades. It melts at 1,435°C (2,615 °F).
Mechanical13
Nickel 200-SPR has a yield strength of 800 MPa (116 ksi) and a tensile strength of 900 MPa (131 ksi) — stronger than 83% of nickel alloy grades. Elongation at break is 3% and the elastic modulus is 207 GPa (30 Msi).
Thermal6
Nickel 200-SPR is rated for continuous service to 230°C (446 °F). It conducts heat at 67 W/m·K (38.7 BTU/hr·ft·°F), better than 97% of nickel alloy grades. Thermal expansion is 13.3 µm/m·K (7.39 µin/in·°F).
Electrical3
Nickel 200-SPR conducts electricity at 17 % IACS, better than 97% of nickel alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), worse than 71% of nickel alloy grades.
Sustainability4
Producing a kilogram of Nickel 200-SPR takes about 165 MJ of energy and emits 12.5 kg of CO₂ — more than 54% of nickel alloy grades. Typical recycled content is 30%.
Manufacturability8
Nickel 200-SPR's machinability is fair (45/100, better than 99% of nickel alloy grades); weldability good (55/100); formability poor (20/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Nickel 200-SPR
Is Nickel 200 easy to machine?
Gummy and work-hardening: use positive-rake sharp carbide, heavy positive feed, rigid setup, low-to-moderate speed (~25–45 m/min) and flood sulfur-chlorinated oil; never dwell in the cut.
Can Nickel 200 be welded?
Readily welded by GTAW/GMAW/SMAW with Ni-61 (ERNi-1) filler or ENi-1 electrodes; keep joints free of sulfur, lead and grease, use low heat input and stringer beads, no preheat or PWHT required.
Can Nickel 200 be formed, bent or molded?
Excellent cold formability — deep drawing, spinning and bending in the annealed temper; hot work 650–1230 °C, anneal 700–900 °C with rapid cooling.
What surface finishes work on Nickel 200?
Bright-anneals or electropolishes to a mirror finish; pickle in HNO3-HF only after grit blast, and avoid sulfur-bearing marking inks before any hot exposure.
Nickel 200 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 |
|---|---|---|
| Cocounted with Ni | — | — |
| Chigh C vs Nickel 201; graphitization above ~315 °C | ≤ 0.15 | 0.08 |
| Mn | ≤ 0.35 | 0.18 |
| Fe | ≤ 0.4 | 0.2 |
| S | ≤ 0.01 | 0.01 |
| Si | ≤ 0.35 | 0.18 |
| Cu | ≤ 0.25 | 0.13 |
| NiNi + Co, 99.0 % min | ≥ 99 (balance) | — |
Nickel 200-SPR — frequently asked
What is Nickel 200-SPR used for?
Nickel 200-SPR is typically used for caustic soda evaporators and vessels, chlorination and dry-chlorine piping, electronic lead wires and terminals, food processing equipment, heat exchanger tubing and transducer diaphragms. In short: pure nickel chemical plate.
What is the yield strength of Nickel 200-SPR?
Nickel 200-SPR has a typical yield strength of 800 MPa (116 ksi) and a tensile strength of 900 MPa (131 ksi) — stronger than 83% of nickel alloy grades. Strength varies by condition: see the 7 listed tempers.
Is Nickel 200-SPR easy to machine?
Reasonably — machinability is rated fair (45/100, better than 99% of nickel alloy grades). Gummy and work-hardening: use positive-rake sharp carbide, heavy positive feed, rigid setup, low-to-moderate speed (~25–45 m/min) and flood sulfur-chlorinated oil; never dwell in the cut.
Can Nickel 200-SPR be welded?
Yes — weldability is rated good (55/100). Readily welded by GTAW/GMAW/SMAW with Ni-61 (ERNi-1) filler or ENi-1 electrodes; keep joints free of sulfur, lead and grease, use low heat input and stringer beads, no preheat or PWHT required.
What surface finishes work on Nickel 200-SPR?
Bright-anneals or electropolishes to a mirror finish; pickle in HNO3-HF only after grit blast, and avoid sulfur-bearing marking inks before any hot exposure.
Can Nickel 200-SPR be formed, bent or molded?
Excellent cold formability — deep drawing, spinning and bending in the annealed temper; hot work 650–1230 °C, anneal 700–900 °C with rapid cooling.
What is the maximum service temperature of Nickel 200-SPR?
Nickel 200-SPR is rated for continuous use to about 230°C (446 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Nickel 200-O and Nickel 200-SPR?
O is the default condition — standard stocked condition for plate, sheet, tube and forming blanks — maximum ductility and best corrosion behaviour. SPR: highest-strength wire condition for springs, woven mesh and fasteners in caustic or high-purity chemical service. Yield strength is 148 MPa in O versus 800 MPa in SPR.
Can FabDigit make parts in Nickel 200-SPR?
Yes — Nickel 200-SPR is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM B162 — Nickel Plate, Sheet and Strip — ASTM International (2019)
- ASTM B160 / B161 — Nickel Rod & Bar / Seamless Pipe & Tube — ASTM International (2020)
- Nickel 200 & 201 Alloy Datasheet — Special Metals Corporation (2020)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.