This chromium-nickel-manganese stainless steel wire was developed mid-century to conserve nickel. Alloy 201 can
be used as an alternative to alloy 301 in some tempered applications. Because of the relatively high yield strength in the annealed condition, the use of alloy 201 is limited in this condition. Alloy 201 is generally used in the tempered condition particularly for springs and fasteners.

PHYSICAL PROPERTIES

Density: 0.283 lbs/in³, 7.81 g/cm³
Electrical Resistivity: microhm-in, microhm-cm: 27.0 (68.5)
Specific Heat: BTU/lbs./°F (kJ/kg/K): 32-212°F (0-100°C): 0.12 (0.50)
Thermal Conductivity, BTU/hr/ft²/ft/°F (W/m/K):
At 212°F (100°C): 9.4 (16.2)
At 932°F (500°C): 12.4 (21.4)
Mean Coefficient of Thermal Expansion, in./in./ °F (µm/m/K)
32 – 212 °F (0 – 100 °C) 8.7 x 10 (15.7)
32 – 600 °F (0 – 315 °C) 9.7 x 10 (17.5)
32 – 1000 °F (0 – 538 °C) 10.2 x 10 (18.4)
32 – 1200 °F (0 – 649 °C) 10.5 x 10 (18.9)
32 – 1600 °F (0 – 871 °C) 11.3 x 10 (20.3)
Modulus of Elasticity, KSI (MPa)
28.6 x 10³(197 x 10³)
Magnetic Permeability, H= 200 Oersteds: Annealed: 1.02 max
Melting Range, °F (°C) – 2550 – 2650 (1399 – 1454)

STANDARD WIRE FINISHES

Typical standards for Type 201 stainless steel

Extra Clean: Extra clean is also referred to as “bright annealed” or “bright annealed and cold rolled”
Grease (round wire only): Drawn in a heavy grease produces an “Ultra bright” finish for decorative applications
Soap (round wire only): Soap is used as a lubricant in the drawing process andis not removed. It acts as a lubricant during customer part forming operation. A soap finish is available in tempered products.
Plated: Many plating options are available.
•Special finishes are available: Contact Ulbrich Wire Sales with special finish and plating requests.

 Application

Construction/Indutry/Building/Chemical/Auto

l  Various screening applications

l  Clamps

l  Springs

l  Display racks and food service applications