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Alloy 310 / 310S / 310H stainless steel round bar, stainless steel bar, small MOQ
ASTM........A 240
ASME........SA 240
AMS..........5521
Alloy 310 is not designed for service in wet corrosive environments. The high carbon content, which is present to enhance creep properties, has a detrimental effect on aqueous corrosion resistance. The alloy is prone to intergranular corrosion after long term exposure at high temperatures. However, due to its high chromium content (25%), Alloy 310 is more corrosion resistant than most heat resistant alloys.
High Temperature Corrosion
The high chromium (25%) and silicon (0.6%) content of Alloy 310 make it more resistant to high temperature corrosion in most in-service environments. Operating temperatures are listed below.
Oxidizing conditions (max sulfur content – 2 g/m3)
1922°F (1050°C) continuous service
2012°F (1100°C) peak temperature
Oxidizing conditions (max sulfur greater than 2 g/m3)
1742°F (950°C) maximum temperature
Low oxygen atmosphere (max sulfur content – 2 g/m3)
1832°F (1000°C) maximum temperature
Nitriding or carburizing atmospheres
1562 – 1742°F (850 – 950°C) maximum
The alloy does not perform as well as Alloy 600 (UNS N06600) or Alloy 800 (UNS N08800) in reducing, nitriding or carburizing atmospheres, but it does outperform most heat resistant stainless steels in these conditions.
Typical Creep Properties
Temperature | Creep Strain (MPa) | Creep Rupture (MPa) | |||||
---|---|---|---|---|---|---|---|
°C | °F | 1000 H | 10000 H | 100000 H | 1000 H | 10000 H | 100000 H |
600 | 1112 | 120 | 100 | 40 | 200 | 140 | 80 |
700 | 1292 | 50 | 35 | 20 | 80 | 45 | 20 |
800 | 1472 | 20 | 10 | 8 | 35 | 20 | 8 |
900 | 1652 | 10 | 6 | 3 | 15 | 10 | 5 |
1000 | 1832 | 5 | 3 | 1.5 | 9 | 4 | 2 |
Weight % (all values are maximum unless a range is otherwise indicated)
Element | 310 | 310S | 310H |
---|---|---|---|
Chromium | 24.0 min.-26.0 max. | 24.0 min.-26.0 max. | 24.0 min.-26.0 max. |
Nickel | 19.0 min.-22.0 max. | 19.0 min.-22.0 max. | 19.0 min.-22.0 max. |
Carbon | 0.25 | 0.08 | 0.40 min. - 0.10 max. |
Manganese | 2.00 | 2.00 | 2.00 |
Phosphorus | 0.045 | 0.045 | 0.045 |
Sulfer | 0.030 | 0.030 | 0.030 |
Silicon | 1.50 | 1.50 | 0.75 |
Iron | Balance | Balance | Balance |