310 Stainless Steel ASTM A 240, A 276, A 312 UNS S31000 / UNS S31008 DIN 1.4845
What forms of 310/310S Stainless Steel are available at Cepheus Stainless?
- Sheet
- Plate
- Bar
- Pipe & Tube
- Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
- Weld Wire (AWS E310-16 or ER310)
310/310S Stainless Steel Overview
Stainless steel 310/310S 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.
**As you can see below, Grade 310S is a low carbon version of grade 310. 310S is less prone to embrittlement and sensitization in service.
310 UNS S31000 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 |
310S UNS S31008 Chemical Composition, %
| Cr | Ni | C | Si | Mn | P | S | Mo | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 24.0-26.0 | 19.2-22.0 | .08 Max | 1.50 Max | 2.00 Max | .045 Max | .03 Max | .75 Max | .50 Max | Balance |
What are the characteristics of 310/310S Stainless?
- Oxidation resistance to 2000°F
- Moderate strength at high temperature
- Resistance to hot corrosion
- Strength and toughness at cryogenic temperatures
Typical Applications for 310/310S Stainless
- Kilns
- Heat Exchangers
- Radiant Tubes
- Muffles, retorts, annealing covers
- Tube hangers for petroleum refiing adn steam boilers
- Coal gasifier internal components
- Saggers
- Furnace parts, conveyor belts, rollers, oven linings, fans
- Food processing equipment
- Cryogenic structures
Fabrication with Stainless 310/310S
Type 310/310S is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly.
Type 310/310S can be welded using all of the common welding processes.
Mechanical Properties
Representative Tensile 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 |
| 1400 | 35.1 | 19.3 | 46 |
| 1600 | 19.1 | 12.2 | 48 |
Typical Creep-Rupture Properties
| Temperature, °F | Minimum Creep 0.0001%/hr, ksi | 100,000 Hour Rupture Strength, ksi |
|---|---|---|
| 12000 | 14.9 | 14.4 |
| 1400 | 3.3 | 4.5 |
| 1600 | 1.1 | 1.5 |
| 1800 | .28 | .66 |