Prodec® 304/304L

Prodec® 304/304L

Prodec® 304/304L is an improved version of standard 304/304L processed for improved machinability and outstanding uniformity. Prodec® 304/304L offers faster machining speeds, longer tool life, improved part quality and lower total cost of machined parts. Prodec® 304/304L is nonmagnetic in the annealed condition, but may become slightly magnetic as a result of cold working or welding.

Rolled Alloys Machining Quality (Prodec®) 304/304L bar can increase yields and extend tool life to reduce machining costs. Prodec® 304/304L is a versatile, general purpose stainless steel with good resistance to atmospheric corrosion, to many organic and inorganic chemicals, and to food and beverages. It has also been used in vacuum processing equipment and specialized instruments where high integrity is essential.

Although improvements in machinability in the past have been associated with reduced corrosion resistance, Prodec® 304/304L has been shown to have corrosion resistance within the range typically expected to 304/304L stainless steel. Because of its low carbon content, Prodec® 304/304L retains this corrosion resistance in the as-welded condition.

It is common for Prodec® 304/304L to be dual certified as Prodec® 304L and Prodec® 304 when that material meets both the lower carbon limit of 304L and the slightly higher strength of 304. Prodec® 304/304L is readily welded by full range of conventional welding procedures except oxyacetylene. AWS E308L/ ER308L filler metal should be used with Prodec® 304/304L steel.

Chemistry

 CrNiCMnPSSiFe
MIN 18.0 8.0 - - - 0.015 - -
MAX 20.0 11.0 0.03 2.0 0.045 0.03 0.75 Balance

Specifications

AMS 5511AMS 5513AMS 5639AMS 5647
ASTM A 240ASTM A 276ASTM A 312ASTM A 479
UNS S30400UNS S30403
Werkstoff 1.4301Werkstoff 1.4307

Inventory

Prodec® 304/304L Hex Bar, Prodec® 304/304L Round Bar

Features

  • Extended tooling life
  • Reduce machining cost

Applications

  • Chemical process equipment
  • Food and beverage industry

Physical Properties

Density: 0.285 lb/inch3
Modulus of Elasticity: 29 x 106 psi
Linear Expansion 60-212°F: 9.4 x 10-6/°F
Thermal Conductivity: 8.7 Btu/ft hr °F
Heat Capacity: 0.12 Btu/lb °F
Electrical Resistivity: 27.6 Ω in x 10-6

Mechanical Properties

Typical Tensile Properties

Tensile Strength, ksi Yield Strength, ksi Elongation in 2 inches, % Reduction of area, % Hardness, HB
85 35 60 70 160

 Minimum Tensile Properties (ASTM A 276)

Tensile Strength, ksi Yield Strength, ksi Elongation in 2 inches, % Reduction of area, %
75 30 40 50

Turning

High Speed Tooling

Feed, in/rev < 0.012 0.012 - 0.02 0.02 - 0.04
Cutting Depth, in 0.08 0.08 - 0.2 0.2 - 0.4
Cutting Speed, sfm C7 820 - -
  C6 650 590 330
C5 - 490 295
Steel 130 115 65

Drilling

High Speed Twist Drills

Drill Diameter, in 0.04 0.12 0.2 0.4 0.6 0.8 1.2
Speed, RPM 3200 - 3800 1600 -1800 1080 -1270 540 - 640 360 - 430 270-320 180-220
SFM 33-38 50- 57 57- 66 57- 66 57- 66 57- 66 57- 66
Feed, in/rev 0.002 0.004 0.008 0.012 0.014 0.016 0.018

Notes: 1. Cutting Fluid: Ample flow of 10% emulsion coolant., 2. With short NC drills, feeds can be increased about 40%., 3. When hole depth exceeds 4x diameter, clear chips from hole., 4. With TiN-Coated HSS drills, speed can be increased 10%.

Milling

  Face Milling Side Milling End Milling End Milling
Speed 490 - 820 590 - 790 490 - 720 165 - 330
Cemented Carbide Feed 0.006 - 0.012 0.01 - 0.012 0.004 - 0.008 0.002 - 0.008
Type of Carbide C7 - C6 C7 - C6 C7 - C6 C5
High Speed Steel Tool, sfm 80 - 100 80 - 100 80 - 100 -
High Speed Steel Feed, in/tooth 0.005 - 0.008 0.005 - 0.008 0.001 - 0.006 -

Prodec® is a registered trademark of Outokumpu