416 Stainless Steel Wire UNS S41600

Alloy 416 is a free machining martensitic grade of stainless.

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Square, Round, Fine Wire, Plated and Un-plated (Rectangular cross sections: Inquire with Ulbrich Shaped Wire Sales) ASTM A484, ASTM A 582, AMS 5610, QQ-S-764, Mil-W-5263

416 Alloy Description

Alloy 416 is a free machining martensitic grade of stainless. Parts can be fabricated in the soft condition then hardened by heat treating to increase strength and hardness. The addition of sulfur increases the machinability over austenitic grades but alloy 416 sacrifices corrosion resistance.


Any part that requires considerable machining

Chemistry Typical

Carbon: 0.15 max
Phosphorus: 0.060 max
Silicon: 1.00 max
Manganese: 1.25 max
Sulfur: 0.150 min
Chromium: 12.00-14.00

Physical Properties

Density: .282 lb/in³, 7.80 g/cm³

Electrical Resistivity: ohm-cir-mil/ft:
At 70 °F (21°C): 343.0

Specific Heat: BTU/lb-°F (J/g-°C):
32-212°F (0-100°C): 0.110 (0.460)

Thermal Conductivity: BTU-in//hr-ft²-°F (W/m•K)
At 200 °F (94 °C): 172.8 (24.9)
At 1000 °F (538 °C): 198 (28.5)

Mean Coefficient of Thermal Expansion: µin/in-°F (µm/m-°C)
32-212 °F (0-100 °C): 5.50 (9.90)
32-600 °F (0-316 °C): 5.60 (10.1)
32-1200 °F (0-649 °C): 6.5 (11.7)

Modulus of Elasticity: KSI (MPa)
29.0 x 10³ (200 x 10³) in tension

Melting Range: °F (°C): 2700-2790 (1488-1530)

Mechanical Properties at Room Temperature

Properties: Annealed Typical

Ultimate Tensile Strength: 75 KSI min (517 MPa min)
Yield Strength: 40 KSI min (276 MPa min)
Elongation: 30 % min

Properties: Tempered

Alloy 416 can be cold rolled to achieve the temper properties required by specific customersand/or manufacturing requirements. Contact Ulbrich Wire for details.

Additional Properties

Corrosion Resistance

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

Standard Wire Finishes

Extra Clean: (XC) 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 and is 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.


Continuous Coils
Cut to lengths
Precision cutting

Heat Treatment

Alloy 416 can be hardened by cold working and by heat treatment.


For best results refer to: SSINA’s “Welding of Stainless Steels and Other Joining Methods”.

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels and Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the ‘applications’ noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.

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