305 DDQ Stainless Steel

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The deep drawing process is a forming process which occurs under a combination of tensile and compressive conditions. A flat sheet metal blank is formed into a hollow body open on one side or a hollow body is formed into a hollow body with smaller cross-section. Type 305 Stainless Steel is an austenitic chromium nickel stainless steel.  Type 305 stainless can be spun and deep drawn more easily due to an increased nickel content that decreases work hardening. Directionality introduced during cold rolling process must be kept to a minimum amount to limit earring during the drawing process.

Type 305 DDQ is nonmagnetic in the annealed and cold worked conditions and has corrosion resistance similar to 304/304L stainless steel. Applications such complex conical shapes, expanded metal parts, small diameter deep containers or sleeves and spinning metal are common uses for Type 305 Stainless.


305 DDQ Inventory Size Ranges

Custom Engineered Strip

0.0008" - 0.012"

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Standard Inventory Specifications

  • UNS 30500
  • ASTM 5514
  • ASTM A240

Common Applications of 305 DDQ

  • Deep draw and spun components
  • Eyelets
  • Electronics
  • Food Processing
  • Kitchen utensils
  • Appliances
Chemical Composition 305 DDQ
Element Percent by Weight
C Carbon 0.12% max
Mn Manganese 2.00% max
Si Silicon 1.00% max
Cr Chromium 17.00% - 19.00%
Ni Nickel 10.00% - 13.00%
Mo Molybdenum 0.75% max
P Phosphorus 0.040%
S Sulfur 0.030% max
Cu Copper 0.75% max
Fe Iron Balance

304 Physical Properties

  • Density: 0.29 lb/in³ (8.03 g/cm³)
  • Modulus of Elasticity in Tension 29 x 106 psi (200 GPa)

Linear Coefficient of Thermal Expansion

Temperature Range Mean Coefficient of Thermal Expansion
°C °F mm/mm/°C in/in/°F · 10?
20 - 100 68 - 212 16.6 · 10-6 9.2 · 10-6
20 - 870 68 - 1600 19.8 · 10-6 11 · 10-6

 

Thermal Conductivity

Temperature Range W/m · K Btu/(hr/ft²/in/°F)
°C °F
100 212 16.3 9.4
500 932 21.4 12.4

 

Electrical Resistivity

°C °F Microhm-cm MIcrohm-in.
20 68 72 28.3
100 212 78 30.7
200 392 86 33.8
400 752 100 39.4
600 1112 111 43.7
800 1472 121 47.6
900 1652 126 49.6