Overview
Grade 310, combining excellent high temperature properties with good ductility and weldability, is designed for high temperature service. It resists oxidation in continuous service at temperatures up to 1150°C provided reducing sulphur gases are not present. It is also used for intermittent service at temperatures up to 1040°C.
Stainless steel 310 is an austenitic heat resistant alloy with excellent resistance to oxidation under mildly cyclic conditions through 2000°F. Its high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation and the retention of a larger fraction of room temperature strength than the common austenitic alloys like Type 304. Stainless 310 is often used at cryogenic temperatures, with excellent toughness to -450°F, and low magnetic permeability.
Specification
ASTM A213/A213M-21a Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.
Chemical Composition
Cr | Ni | C | Si | Mn | P | S | Mo | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|
24.0-26.0 | 19.2-22.0 | .25 Max | 1.50 Max | 2.00 Max | .045 Max | .03 Max | .75 Max | .50 Max | Balance |
Mechanical Properties
Temperature, °F | Ultimate Tensile Strength, ksi | .2% Yield Strength, ksi | Elongation Percent |
|---|---|---|---|
70 | 80.0 | 35.0 | 52 |
1000 | 67.8 | 20.8 | 47 |
1200 | 54.1 | 20.7 | 43 |
1200 | 35.1 | 19.3 | 46 |
1600 | 19.1 | 12.2 | 48 |
Typical Creep-Rupture Properties
Temperature | Minimum Creep | 100,000 Hour Rupture Strength |
|---|---|---|
12000 | 14.9 | 14.4 |
1400 | 3.3 | 4.5 |
1600 | 1.1 | 1.5 |
1800 | .28 | .66 |
Applications
- 1. Kilns.
- 2. Heat Exchangers.
- 3. Radiant Tubes.
- 4. Muffles, retorts, annealing covers.
- 5. Tube hangers for petroleum refiing adn steam boilers.
- 6. Coal gasifier internal components.
- 7. Saggers.
- 8. Furnace parts, conveyor belts, rollers, oven linings, fans.
- 9. Food processing equipment.
- 10. Cryogenic structures.
