305 Stainless Steel UNS 30500

Strip, Coil, Foil & Wire, AMS 5514, ASTM A240, QQ-S-766

Applications

Deep drawn parts, cups, pans, pens, eyelets, rivets, tubes, mixing bowls

Description

305 Stainless Steel is an austenitic chromium nickel stainless steel with a low rate of work hardening. This low rate of work hardening makes it suitable for many deep drawing applications. In order to minimize earring during drawing, the directionality introduced during cold rolling must be kept to a minimum amount. Deep drawing quality should be noted when ordering this alloy. Ordering annealed or dead soft does not guarantee deep drawing quality. Type 305 is non magnetic and becomes magnetic ( at a slow rate) with increasing cold work.

Chemistry Typical

Carbon: 0.12 max
Manganese: 2.00 max
Silicon: 1.00 max
Chromium: 17.00-19.00
Nickel: 10.00 -13.00
Molybdenum: 0.75 max
Phosphorus: 0.040
Sulfur: 0.030 max
Copper: 0.75 max
Iron: Balance

Physical Properties

Density: 0.29 lbs/in3 7.99 g/cm3

Electrical Resistivity: microhm-in (microhm-cm): 68 °F (20 °C): 28.4 (74.0)

Specific Heat: BTU/lb/°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)- 9.6 x 10-6 (17.3)
32 - 600 °F (0- 315 °C)- 9.9 x 10-6 (17.8)
32 - 1000 °F (0 - 538 °C)-10.2 x 10-6 (18.4)
32 - 1200 °F (0 - 649 °C)-10.4 x 10-6 (18.7)

Modulus of Elasticity: ksi (MPa) 28 x 103 (193 x 103) in tension

Magnetic Permeability, H = 200 Oersteds: Annealed < 1.02

Melting Range: 2550 - 2650 ° F (1399 - 1454 °C)

Forms

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

Mechanical Properties at Room Temperature

Annealed Typical

Ultimate Tensile Strength: 75 KSI min (515 MPa min) Yield Strength (0.2% Offset): 30 KSI min (205 MPa min) Elongation: 40% min Hardness: B92 or equiv. max

Tempered

305 can be supplied in various rolled to temper conditions. Refer to Ulbrich Technical Services for details.

Additional Properties

Corrosion Resistance

Refer to NACE (National Association 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. * Not all finishes are available in all alloys - Contact Ulbrich Sales for more information.

Wire Finishes

XC - Extra clean bright annealed or bright annealed and cold rolled Grease - Ultra-bright finish (for decorative applications) Soap - Soap coating on tempered wire to act as lubricant. * Contact Ulbrich wire for custom wire finishes.

Cold Forming

Type 305 can be readily formed and is considered a good choice for drawn parts.

Heat Treatment

305 is non hardenable by heat treatment.

Welding

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 & 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.