Stainless Steel 502
General Characteristics of Stainless 502
Stainless 502 is a heat- and corrosion-resistant stainless steel is used extensively in oil and chemical plants. This 5% chromium alloy stainless steel is stronger than mild steel at higher temperatures and holds up well in the mild atmospheres found in the petroleum industry.
Chemical Composition of Stainless 502
- Carbon 0.10 max
- Chromium 4.0-6.0
- Silicon 1.00 max
- Manganese 1.0 max
- Phosphorus 0.04 max
- Molybdenum 0.40-0.65
- Sulfur 0.03 max
- Iron balance
Heat Treatment of Stainless 502
- Full anneal by heating to 1450° to 1550°F (788° to 843°C), then gradually furnace cool
- Low anneal by heating at 1325° to 1375°F (718° to 746°C) before gradually cooling
- Harden by heating at 1600° to 1700°F (871° to 927°C), then soaking at heat 1 hour minimum, oil quenching and tempering at 400° to 1400°F (204° to 760°C)
Applications of Stainless 502
- Refinery equipment, including oil pump and pipe parts
Machinability of Stainless 502
- Favorable machinability when annealed
- Grind high-speed steel single-point cutting tools to the following:
- Side rake: 6-12°
- Back rake: 5-10°
- Side and end relief: 6-10°
- End cutting-edge angle: 6-15°
- Side cutting-edge angle: 10-20°
- Nose radius: 10° cutting depth
- Sulfurized or chlorinated cutting fluids with high-speed steel tools
- Carbide tipped tools
- Side rake: 4-12°
- Back rake: 0-5°
- Side and end relief: 4-10°
- End cutting-edge angle: 8-14°
- Side cutting-edge angle: 10-20°
- Nose radius: 1/32
Workability of Stainless 502
- Initial forging at 2000° to 2200°F (1093° to 1204°XC)
- Finishing forging at 1500° to 1600°F (816° to 871°C)
- Preheat to 1400° to 1500°F (760° to 816°C)
- All forming techniques appropriate
- Slow cool or anneal following hot working
- Can be cold worked when annealed, including:
- Drawing
- Forming
- Blanking
- Heading
To Send a Request for Quote, please Click Here, call 973.276.5000, or fax (973) 276 – 5050
