Bright Surface Precision Wires Ferronickel Material With Annealed / Cold Drawing

Alloy 52 0.25mm*0.64mm Precision Alloy Flat Wire/ Ribbon Wire

General Information:

APPLICATIONS

Applications for Alloy 52 include magnetic reed switches and seals that need controlled linear expansion to approximately 977 °F (525 °C).
 

DESCRIPTION

Alloy 52 is a 50.50% nickel-iron alloy developed for glass-to-metal seals for some of the soft glasses and some ceramics. The alloy's rate of thermal expansion is virtually constant to a temperature of about 1050 °F (565 °C).
 

CHEMISTRY TYPICAL

Carbon: 0.05 max
Silicon: 0.30 max
Manganese: 0.60 max
Nickel: 50.5 nom
Chromium: 0.25 max
Iron: Balance
Phosphorus: 0.025 max
Sulfur: 0.025 max
Aluminum: 0.10 max
 

PHYSICAL PROPERTIES

Density: 0.30 lb/in3, 8.30 g/cm3

Electrical Resistivity: ohm-cir-mil/ft, microhm-cm:
At 68 °F (20 °C): 258 (43)

Thermal Conductivity: BTU-in/hr-ft2-°F (W/m•K):
68 - 212 °F (20 - 100 °C): 97 (140)

Mean Coefficient of Thermal Expansion: µin/in-°F (µm/m-°C):
77 - 842 °F (25 - 450 °C): 5.4 (9.8)

Melting Range: 2600 °F (1430 °C)

FORMS

Coil - Sheet, Strip, Ribbon
Wire - Profile, Round, Flat, Square
 

MECHANICAL PROPERTIES AT ROOM TEMPERATURE

PROPERTIES: ANNEALED TYPICAL

Ultimate Tensile Strength: 78 KSI nom (536 MPa nom)
Yield Strength: 35 KSI nom (240 MPa nom)
Elongation: 30% nom
Hardness: Rb 73 nom

PROPERTIES: TEMPERED

Alloy 52 can be cold worked to various tempers. Contact Ulbrich Technical Service for additional information.

ADDITIONAL PROPERTIES

CORROSION RESISTANCE

Refer to NACE (National Associate of Corrosion Engineers) for recommendations.

FINISHES

#1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
#2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process.
#2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA - Bright annealed cold rolled and bright annealed
#CBA - Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled
#2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part.
Polished - Various grit finish for specific polish finished requirements.