Table of Contents
- ASTM B160 UNS N02200 & N02201 Bars Overview
- Technical Specifications
- Chemical Composition & Mechanical Properties
- UNS N02200 (Alloy 200) vs UNS N02201 (Alloy 201)
- Types of Nickel Alloy Bars: Hexagonal & Square Profiles
- Key Advantages
- Key Applications
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
ASTM B160 UNS N02200 & N02201 Bars Overview
Commercially pure nickel bar products are stocked and supplied globally by Aurum Overseas, a leading stockist and exporter. As a reliable ASTM B160 UNS N02200 Square Bars and ASTM B160 UNS N02200 Hex Bars Supplier, our 99.0% pure Nickel Alloy 200 Square Bars and Hex Bars deliver high thermal conductivity and low electrical resistivity.
For high-temperature processing environments exceeding 315 °C (600 °F), Aurum Overseas serves as an established ASTM B160 UNS N02201 Square Bars and ASTM B160 UNS N02201 Hex Bars Exporter. Our Nickel Alloy 201 Square Bars and Nickel Alloy 201 Hex Bars utilize controlled low-carbon chemistry (0.02% max) to resist grain boundary graphitization.
Engineered for caustic soda evaporators, fluorine handling, and electronics, our pure nickel bars provide exceptional ductility and acid resistance. Contact Aurum Overseas today for competitive factory pricing, custom saw-cutting services, and fast dispatch.
Technical Specifications
| Technical Parameter | Specification Standard |
|---|---|
| Material Specifications | ASTM B160, ASME SB160, DIN 17752, EN 10204 3.1, ISO 9723 |
| UNS Designations | UNS N02200 (Nickel 200) / UNS N02201 (Nickel 201) |
| Werkstoff Numbers | W.Nr. 2.4066 (Ni 99.2) / W.Nr. 2.4068 (LC-Ni 99) |
| Across-Flats (AF) Size Range | 6.0 mm to 100.0 mm (1/4" to 4.0" Square & Hexagon Profiles) |
| Length Options | 1,000 mm to 6,000 mm, Custom Sawing and Cut-to-Length |
| Surface Finishes | Cold Drawn, Centerless Ground, Turned, Hot Rolled, Smooth Finished |
| Temper States | Annealed (Soft), Stress Relieved, As-Hot-Finished |
| Dimensional Tolerances | ASTM B160 / ISO 286-2 (h9, h10, h11 profile tolerances) |
| HSN Code | 75052100 / 75052200 |
Chemical Composition & Mechanical Properties
Equivalent Standards
| Grade | Standard | UNS | Werkstoff Nr. | JIS | EN Standard |
|---|---|---|---|---|---|
| Nickel 200 | ASTM B160 | N02200 | 2.4066 | NW 2200 | Ni 99.2 |
| Nickel 201 | ASTM B160 | N02201 | 2.4068 | NW 2201 | LC-Ni 99 |
Chemical Composition (%)
| Chemical Element | Nickel 200 (UNS N02200) | Nickel 201 (UNS N02201) |
|---|---|---|
| Nickel (Ni) | 99.0 min | 99.0 min |
| Carbon (C) | 0.15 max | 0.02 max |
| Manganese (Mn) | 0.35 max | 0.35 max |
| Silicon (Si) | 0.35 max | 0.35 max |
| Sulfur (S) | 0.01 max | 0.01 max |
| Copper (Cu) | 0.25 max | 0.25 max |
| Iron (Fe) | 0.40 max | 0.40 max |
Mechanical & Physical Properties
| Property Parameter | Nickel 200 (UNS N02200) | Nickel 201 (UNS N02201) |
|---|---|---|
| Density | 8.9 g/cm³ (0.321 lb/in³) | 8.9 g/cm³ (0.321 lb/in³) |
| Melting Point | 1446 °C (2635 °F) | 1446 °C (2635 °F) |
| Tensile Strength (Min) | 462 MPa (67,000 Psi) | 462 MPa (67,000 Psi) |
| Yield Strength (0.2% Offset, Min) | 148 MPa (21,500 Psi) | 148 MPa (21,500 Psi) |
| Elongation (Min) | 45 % | 45 % |
UNS N02200 (Alloy 200) vs UNS N02201 (Alloy 201)
| Feature | UNS N02200 (Nickel 200) | UNS N02201 (Nickel 201) |
|---|---|---|
| Carbon Limit | Standard Carbon level (0.15% max) | Ultra-low Carbon level (0.02% max) |
| Thermal Threshold | Rated for operating temperatures up to 315 °C (600 °F) | Rated for high-temperature service above 315 °C (600 °F) |
| Graphitization Risk | High carbon precipitates as intergranular graphite above 315 °C | Low carbon prevents intergranular embrittlement at elevated heat |
| Best Used For | Caustic handling valves, electronic parts, food processing hex bolts | Molten caustic soda evaporators, fluorine reactors, high-temp fasteners |
Types of Nickel Alloy Bars: Hexagonal & Square Profiles
Aurum Overseas supplies commercially pure Nickel Alloy 200 and 201 bars in precision hexagonal and square profiles.
Nickel Alloy 200 & 201 Hex Bars
Nickel Alloy 200 & 201 Square Bars
Key Advantages
Extreme Caustic Soda Protection
Forms a protective surface layer that stops corrosion in hot, concentrated, and molten caustic soda without pitting or flaking.
High Thermal & Electrical Power
Excellent heat conductivity and low electrical resistance make these bars ideal for power busbars, heat sinks, and electronic sensors.
High-Heat Structural Stability (Nickel 201)
Ultra-low carbon chemistry stops metal brittleness and cracking during continuous operation above 315 °C (600 °F).
Pre-Shaped Machining Efficiency
Precision cold-drawn square and hex profiles cut down shop machine time, extend cutting tool life, and lower raw material scrap.
Key Applications
| Industry | Applications | Operational Benefit |
|---|---|---|
| Chemical Processing | Caustic soda evaporators, valve stems, reactor hex plugs | Resists severe alkaline attack without pitting or stress cracking. |
| Electronics & Defense | Transducer cores, sonar housing pins, battery busbars | High magnetostrictive response with stable electrical conductivity. |
| Food & Synthetic Fibers | Fatty acid processing shafts, soap manufacturing hex fittings | Prevents product contamination while maintaining sanitary purity. |
| Aerospace & Rocketry | High-temp fluorine piping fittings, rocket motor hardware | Withstands dry halogen gases at elevated service temperatures. |
Quality Testing & Inspection
As a leading ASTM B160 UNS N02200 Hex Bars Supplier and ASTM B160 UNS N02201 Square Bars Exporter, Aurum Overseas verifies every shipment through rigorous quality control:
- Positive Material Identification (PMI): 100% XRF spectral examination verifying 99.0% min Ni purity and low-carbon threshold bounds.
- Mechanical & Hardness Testing: Room-temperature tensile, yield, elongation, and Brinell/Rockwell hardness testing verifying compliance with ASTM B160.
Global Export Markets
As an established ASTM B160 UNS N02200 & N02201 Square & Hex Bar Exporter, Aurum Overseas supplies fully certified pure nickel bars to global chemical processing, electronics, food, and aerospace facilities:
USA
Canada
Mexico
Germany
United Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Nickel 200 contains carbon that turns into graphite above 315 °C (600 °F), causing the metal to become brittle and crack. Nickel 201 limits carbon to 0.02% max, keeping the alloy strong and flexible at high heat.
Both grades form a tough, natural oxide film that stops chemical attack, making them ideal for processing plants handling hot, concentrated, or molten caustic soda.
Yes. Both grades offer excellent weldability using standard TIG and MIG methods with matching Nickel 61 filler metal, requiring no pre-heating or complex post-weld treatments.
Pre-formed square and hex bars match your final part shape—like valve stems or bolts—minimizing machining passes, extending cutting tool life, and reducing metal scrap.
Every shipment includes EN 10204 3.1 Mill Test Certificates verifying complete chemical melt analysis, mechanical strength tests, non-destructive testing clearance, and standard compliance.
Contact Aurum Overseas
Contact a dedicated UNS N02200 Hex Bars and UNS N02201 Square Bars Exporter for prompt technical support, precision length sawing, and competitive factory pricing.