Material Family

Commercially Pure Nickel (Unalloyed) Coil/Strip

The coiled form of pure, ductile nickel.

Common Forms & Tempers

Forms: Cold Rolled Coil (Strip), Annealed Pickled Coil.
Temper: Annealed (Soft) for maximum formability; Hard, Half-Hard for spring or structural applications requiring higher strength.

Extremely versatile temper range allows deep drawing in soft temper or spring properties in hard temper.

Chemical Composition (Typical wt.%)

Ni (+Co): ≥ 99.0
C: ≤ 0.15
Fe: ≤ 0.40
Mn: ≤ 0.35
Cu: ≤ 0.25
Si: ≤ 0.35
S: ≤ 0.01

High purity is key to its corrosion resistance and electrical properties. Note: For service >315°C, Nickel 201 coil (low carbon) must be used.

Mechanical Properties (By Temper, Room Temp)

Annealed (Soft):
• Tensile: 380 - 550 MPa
• Yield: 100 - 275 MPa
• Elongation: 40 - 55%
Hard Temper (Typical):
• Tensile: 550 - 760 MPa
• Yield: 480 - 690 MPa
• Elongation: 2 - 10%

Lower strength than alloyed nickels but exceptional ductility and toughness. Hard temper provides good spring characteristics.

Coil Physical Specifications (Typical)

Thickness: 0.05mm - 3.0mm (0.002" - 0.125")
Width: 10mm - 600mm (0.4" - 24")
Coil I.D.: 300mm, 405mm, 508mm (12", 16", 20")
Coil Weight: 50kg - 2000kg

Precision gauge and width control for high-speed progressive die stamping and continuous forming processes.

Key Corrosion Resistance Attributes

• Excellent resistance to hot, concentrated caustic alkalis (NaOH, KOH) up to boiling point – its premier application.
• Excellent resistance to neutral and reducing salts, organic acids, and dry halogen gases.• Good resistance to dilute hydrochloric and sulfuric acids at room temperature.• ⚠️ Poor resistance to oxidizing acids (e.g., nitric acid) and ammonium salts.

The benchmark material for handling hot caustic soda.

Key Physical Properties

Density: 8.89 g/cm³
Melting Point: 1435-1445 °C
Thermal Conductivity: 70 W/m·K
Electrical Conductivity: ~25% IACS

Notable for its high thermal and electrical conductivity among nickel alloys, useful for electrical and heat transfer applications.

Key Standards (Strip/Coil)

ASTM B162 / ASME SB-162 (Standard Specification for Nickel Plate, Sheet, and Strip), DIN 2.4060, 2.4066

ASTM B162 is the primary specification for coil (strip) products.

Typical Coil Applications

• Chemical Processing: Gaskets, spacers, anode baskets, heating element sheaths for caustic evaporators.
• Electronics & Electrical: Battery cases, lead frames, waveguide components, shielding strips.
• Food & Pharmaceutical: Processing equipment parts requiring high purity and cleanability.
• Aerospace: High-purity ducting, fuel cell components.
• General: Stampings for corrosive alkaline environments, springs, clips.

The primary coil material for caustic handling and applications requiring pure nickel's unique combination of properties.