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
| Cr | Ni | C | Mn | P | S | Si | Fe | |
|---|---|---|---|---|---|---|---|---|
| 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 5511, AMS 5513, AMS 5639, AMS 5639G, AMS 5647, AMS 5647H
ASTM A 240, ASTM A 262, ASTM A 276, ASTM A 276 Condition A, ASTM A 276 Condition S, ASTM A 312, ASTM A 320, ASTM A 479, ASTM A484
UNS S30400, UNS S30403
Werkstoff 1.4301, Werkstoff 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
Representative Tensile Properties
| Typical | ASTM | ||
| Tensile Strength, ksi | ksi | 85 | 75 |
| Yield Strength, ksi | ksi | 35 | 30 |
| Elonation in 2 inches, % | % | 60 | 40 |
| Reduction of area, % | % | 70 | - |
| Hardness, HB | HB | 160 | 201 |
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